k_heap_aligned_alloc: validate the alignment argument #93036
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There is a special internal understanding between `z_alloc_helper()` and `sys_heap_aligned_alloc()` for the meaning of non-power-of-two alignment values. There was a time when `z_alloc_helper()` was expressed in terms of `k_heap_aligned_alloc()` so the later had to accept special alignment values from the former. This is no longer the case and `k_heap_aligned_alloc()` should enforce proper alignment values now. Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
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JarmouniA
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Jul 11, 2025
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There is a special internal understanding between
z_alloc_helper()and
sys_heap_aligned_alloc()for the meaning of non-power-of-twoalignment values. There was a time when
z_alloc_helper()was expressedin terms of
k_heap_aligned_alloc()so the later had to accept specialalignment values from the former. This is no longer the case and
k_heap_aligned_alloc()should enforce proper alignment values now.Signed-off-by: Nicolas Pitre npitre@baylibre.com