Merge pull request #1 from torvalds/master #303
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laijs
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to laijs/linux
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Feb 13, 2017
Proposal: Add support for disks with custom block ops
wzyy2
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to wzyy2/linux
that referenced
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Jul 21, 2017
There is a bad unlock balance issue in the following case: 1. Use micro USB 2.0 interface; 2. Vbus 5v is always powered on; 3. Wait until DWC2 completes initialization, and then plug in OTG to Host cable; 4. Plug out the OTG cable, and then we will reproduce this issue, and we'll get the following log if we enable the kernel lock debugging. ===================================== [ BUG: bad unlock balance detected! ] 4.4.71 torvalds#303 Not tainted ------------------------------------- swapper/0/0 is trying to release lock (&(sl)->rlock) at: [<c0795848>] dwc_otg_pcd_suspend_cb+0x20/0x48 but there are no more locks to release! other info that might help us debug this: 1 lock held by swapper/0/0: stack backtrace: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.71 torvalds#303 Hardware name: Rockchip (Device Tree) [<c0110018>] (unwind_backtrace) from [<c010c04c>] (show_stack+0x10/0x14) [<c010c04c>] (show_stack) from [<c0423e28>] (dump_stack+0x9c/0xd4) [<c0423e28>] (dump_stack) from [<c021803c>] (print_unlock_imbalance_bug.part.7+0x8c/0xb8) [<c021803c>] (print_unlock_imbalance_bug.part.7) from [<c018ce74>] (lock_release+0x284/0x54c) [<c018ce74>] (lock_release) from [<c0c0e03c>] (_raw_spin_unlock+0x18/0x54) [<c0c0e03c>] (_raw_spin_unlock) from [<c0795848>] (dwc_otg_pcd_suspend_cb+0x20/0x48) [<c0795848>] (dwc_otg_pcd_suspend_cb) from [<c0792cc4>] (dwc_otg_handle_usb_suspend_intr+0x68/0x37c) [<c0792cc4>] (dwc_otg_handle_usb_suspend_intr) from [<c079329c>] (dwc_otg_handle_common_intr+0x2c4/0xd58) [<c079329c>] (dwc_otg_handle_common_intr) from [<c0786a18>] (dwc_otg_common_irq+0xc/0x18) [<c0786a18>] (dwc_otg_common_irq) from [<c0199e48>] (handle_irq_event_percpu+0x188/0x4d4) [<c0199e48>] (handle_irq_event_percpu) from [<c019a1cc>] (handle_irq_event+0x38/0x5c) [<c019a1cc>] (handle_irq_event) from [<c019d654>] (handle_fasteoi_irq+0xa8/0x124) [<c019d654>] (handle_fasteoi_irq) from [<c0199454>] (generic_handle_irq+0x18/0x28) [<c0199454>] (generic_handle_irq) from [<c0199754>] (__handle_domain_irq+0x88/0xb0) [<c0199754>] (__handle_domain_irq) from [<c01014b4>] (gic_handle_irq+0x4c/0x94) [<c01014b4>] (gic_handle_irq) from [<c010cbb8>] (__irq_svc+0x58/0x98) It's because that when plug in OTG to host cable, the core_if->lock will be initialized to hcd->lock (check_id()-> id_status_change()->cil_hcd_start()->dwc_otg_hcd_reinit()), so we should release core_if->lock before call cil_pcd_suspend() rather than release the pcd->lock inside of callback function. Change-Id: I1e32f37c701d1a8d741947b6bf385c1bbcb6da78 Signed-off-by: William Wu <william.wu@rock-chips.com>
ruscur
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to ruscur/linux
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Feb 26, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
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to ruscur/linux
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this pull request
Mar 2, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 4, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 5, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 10, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 12, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 13, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 16, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 23, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 24, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 27, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 30, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 31, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Apr 2, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Apr 3, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Apr 6, 2020
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Dec 16, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
fengguang
pushed a commit
to 0day-ci/linux
that referenced
this pull request
Dec 19, 2020
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
chleroy
added a commit
to chleroy/linux
that referenced
this pull request
Feb 12, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Mar 22, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
mpe
pushed a commit
to linuxppc/linux
that referenced
this pull request
Apr 3, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/fbc3e4fcc9c8f6131d6c705212530b2aa50149ee.1616430991.git.christophe.leroy@csgroup.eu
ruscur
pushed a commit
to ruscur/linux
that referenced
this pull request
Apr 8, 2021
At the time being, PPC32 has Classical BPF support. The test_bpf module exhibits some failure: test_bpf: torvalds#298 LD_IND byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#299 LD_IND halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#301 LD_IND halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: torvalds#303 LD_ABS byte frag jited:1 ret 202 != 66 FAIL (1 times) test_bpf: torvalds#304 LD_ABS halfword frag jited:1 ret 51958 != 17220 FAIL (1 times) test_bpf: torvalds#306 LD_ABS halfword mixed head/frag jited:1 ret 51958 != 1305 FAIL (1 times) test_bpf: Summary: 371 PASSED, 7 FAILED, [119/366 JIT'ed] Fixing this is not worth the effort. Instead, remove support for classical BPF and prepare for adding Extended BPF support instead. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/fbc3e4fcc9c8f6131d6c705212530b2aa50149ee.1616430991.git.christophe.leroy@csgroup.eu
fengguang
pushed a commit
to 0day-ci/linux
that referenced
this pull request
Apr 15, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ torvalds#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
Apr 16, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
Apr 21, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
Apr 21, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
Apr 22, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
Apr 26, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
Apr 28, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
jwrdegoede
referenced
this pull request
in jwrdegoede/linux-sunxi
May 5, 2021
This fixes the same locking problem fixed by commit 2800aad ("iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()") but then for the gen2 variant of enqueue_hcmd(). It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs disabled (e.g. from LED core). We can't enable BHs in such a situation. Turn the unconditional BH-enable/BH-disable code into hardirq-disable/conditional-enable. This fixes the warning below. [ 36.763543] WARNING: CPU: 6 PID: 1582 at kernel/softirq.c:178 __local_bh_enable_ip+0x97/0xd0 [ 36.763550] Modules linked in: cmac bnep vfat fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_hdac_hdmi snd_soc_dmic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda iTCO_wdt mei_wdt snd_sof_pci mei_hdcp intel_pmc_bxt iTCO_vendor_support snd_sof snd_sof_xtensa_dsp snd_soc_skl intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc x86_pkg_temp_thermal snd_soc_sst_dsp snd_soc_acpi_intel_match intel_powerclamp snd_soc_acpi coretemp snd_soc_core snd_compress ac97_bus cdc_ether kvm_intel usbnet snd_pcm_dmaengine r8152 snd_hda_intel mii snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib kvm snd_rawmidi snd_hda_codec irqbypass snd_hda_core snd_hwdep rapl intel_cstate snd_seq intel_uncore iwlmvm snd_seq_device pcspkr snd_pcm wmi_bmof intel_wmi_thunderbolt e1000e mac80211 uvcvideo btusb i2c_i801 videobuf2_vmalloc videobuf2_memops btrtl [ 36.763661] snd_timer i2c_smbus videobuf2_v4l2 btbcm btintel libarc4 thunderbolt videobuf2_common bluetooth videodev mei_me iwlwifi mei ecdh_generic mc ecc nxp_nci_i2c nxp_nci joydev processor_thermal_device ucsi_acpi nci processor_thermal_rfim processor_thermal_mbox cfg80211 typec_ucsi processor_thermal_rapl intel_pch_thermal intel_rapl_common idma64 intel_soc_dts_iosf typec nfc int3403_thermal int340x_thermal_zone soc_button_array intel_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel binfmt_misc zram ip_tables dm_crypt trusted hid_logitech_hidpp hid_logitech_dj uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i915 serio_raw nvme nvme_core i2c_algo_bit drm_kms_helper cec hid_multitouch drm wmi i2c_hid_acpi i2c_hid thinkpad_acpi ledtrig_audio platform_profile snd soundcore rfkill drm_privacy_screen_helper video pinctrl_cannonlake i2c_dev fuse [ 36.763775] CPU: 6 PID: 1582 Comm: NetworkManager Not tainted 5.12.0-rc7+ linux-sunxi#303 [ 36.763778] Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET24W (1.14 ) 10/15/2020 [ 36.763780] RIP: 0010:__local_bh_enable_ip+0x97/0xd0 [ 36.763783] Code: f3 48 a9 00 ff ff 00 74 36 65 ff 0d b3 02 f3 48 e8 de ee 12 00 fb 66 0f 1f 44 00 00 5b 5d c3 65 8b 05 d9 0a f3 48 85 c0 75 9c <0f> 0b eb 98 e8 00 ee 12 00 eb a7 48 89 ef e8 16 14 07 00 eb b0 65 [ 36.763786] RSP: 0018:ffffbc2e016b72d0 EFLAGS: 00010046 [ 36.763790] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 [ 36.763792] RDX: 0000000000000003 RSI: 0000000000000201 RDI: ffffffffc0a8527b [ 36.763794] RBP: ffffffffc0a8527b R08: 0000000000000000 R09: 0000000000000001 [ 36.763796] R10: ffffbc2e016b71c0 R11: 0000000000000001 R12: ffffa0570c902c10 [ 36.763798] R13: 0000000000000000 R14: 0000000080000000 R15: 0000000000000000 [ 36.763801] FS: 00007f44b889bbc0(0000) GS:ffffa05a5a580000(0000) knlGS:0000000000000000 [ 36.763803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.763805] CR2: 00007fde6d88b8f0 CR3: 0000000142b08005 CR4: 00000000003706e0 [ 36.763808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.763810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.763812] Call Trace: [ 36.763815] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.763848] iwl_trans_txq_send_hcmd+0x59/0x440 [iwlwifi] [ 36.763872] iwl_trans_send_cmd+0x81/0x180 [iwlwifi] [ 36.763890] iwl_mvm_send_cmd+0x28/0x80 [iwlmvm] [ 36.763910] iwl_mvm_led_set+0x9c/0xc0 [iwlmvm] [ 36.763933] ? _raw_read_lock_irqsave+0x88/0xa0 [ 36.763938] led_trigger_event+0x46/0x70 [ 36.763945] ieee80211_do_open+0x4c2/0xa70 [mac80211] [ 36.764006] ieee80211_open+0x69/0x90 [mac80211] [ 36.764057] __dev_open+0xd4/0x1a0 [ 36.764063] __dev_change_flags+0x1c8/0x240 [ 36.764072] dev_change_flags+0x21/0x60 [ 36.764077] do_setlink+0x238/0x1110 [ 36.764084] ? cpumask_next+0x17/0x20 [ 36.764087] ? __snmp6_fill_stats64.constprop.0+0x53/0xe0 [ 36.764093] ? __nla_validate_parse+0x4f/0xbf0 [ 36.764109] __rtnl_newlink+0x601/0x9b0 [ 36.764116] ? __lock_acquire+0x389/0x1e10 [ 36.764130] ? lock_acquire+0xb5/0x380 [ 36.764134] ? sock_def_readable+0x5/0x2a0 [ 36.764136] ? lock_is_held_type+0xa5/0x120 [ 36.764141] ? find_held_lock+0x2b/0x80 [ 36.764146] ? sock_def_readable+0xb0/0x2a0 [ 36.764148] ? lock_release+0xba/0x2a0 [ 36.764156] ? netlink_unicast+0x1f7/0x230 [ 36.764163] ? rtnl_getlink+0x364/0x3e0 [ 36.764207] ? rcu_read_lock_sched_held+0x3f/0x80 [ 36.764211] ? kmem_cache_alloc_trace+0x29a/0x2c0 [ 36.764220] rtnl_newlink+0x44/0x70 [ 36.764225] rtnetlink_rcv_msg+0x16e/0x480 [ 36.764229] ? netlink_deliver_tap+0x95/0x3d0 [ 36.764236] ? rtnetlink_put_metrics+0x1c0/0x1c0 [ 36.764241] netlink_rcv_skb+0x50/0xf0 [ 36.764251] netlink_unicast+0x16d/0x230 [ 36.764258] netlink_sendmsg+0x24d/0x480 [ 36.764270] sock_sendmsg+0x5e/0x60 [ 36.764274] ____sys_sendmsg+0x22f/0x270 [ 36.764278] ? import_iovec+0x17/0x20 [ 36.764282] ? sendmsg_copy_msghdr+0x59/0x90 [ 36.764290] ___sys_sendmsg+0x81/0xc0 [ 36.764303] ? lock_is_held_type+0xa5/0x120 [ 36.764307] ? find_held_lock+0x2b/0x80 [ 36.764313] ? __fget_files+0xd0/0x1a0 [ 36.764316] ? lock_release+0xba/0x2a0 [ 36.764324] ? __fget_files+0xef/0x1a0 [ 36.764333] __sys_sendmsg+0x49/0x80 [ 36.764342] ? syscall_enter_from_user_mode+0x27/0x80 [ 36.764348] do_syscall_64+0x33/0x40 [ 36.764352] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 36.764355] RIP: 0033:0x7f44b99876fd [ 36.764359] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48 [ 36.764361] RSP: 002b:00007ffca4a55940 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 36.764365] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007f44b99876fd [ 36.764368] RDX: 0000000000000000 RSI: 00007ffca4a55980 RDI: 000000000000000c [ 36.764370] RBP: 0000560f3b81d030 R08: 0000000000000000 R09: 0000000000000000 [ 36.764372] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 36.764374] R13: 00007ffca4a55ae0 R14: 00007ffca4a55adc R15: 0000000000000000 [ 36.764390] irq event stamp: 246365 [ 36.764391] hardirqs last enabled at (246363): [<ffffffffb70e7b12>] __local_bh_enable_ip+0x82/0xd0 [ 36.764395] hardirqs last disabled at (246364): [<ffffffffb7d111c4>] _raw_read_lock_irqsave+0x94/0xa0 [ 36.764398] softirqs last enabled at (246362): [<ffffffffc0a8527b>] iwl_pcie_gen2_enqueue_hcmd+0x56b/0x8c0 [iwlwifi] [ 36.764414] softirqs last disabled at (246365): [<ffffffffc0a84dfb>] iwl_pcie_gen2_enqueue_hcmd+0xeb/0x8c0 [iwlwifi] Cc: Jiri Kosina <jkosina@suse.cz> Cc: Chris Murphy <lists@colorremedies.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
TheSven73
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May 27, 2021
Remove `pr_cont` from prelude
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