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| author | Vlastimil Babka <vbabka@suse.cz> | 2022-11-07 17:11:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:32:06 +0200 |
| commit | 3e47f3a703c63aca1e1309f9d67c263303dddc34 (patch) | |
| tree | fad51d064d237c2b4c5bf2b76d6f61647d3f43f4 /mm | |
| parent | c1030da07a2445cec4b2a5f00b6d6e9d28fbf9ff (diff) | |
| download | linux-3e47f3a703c63aca1e1309f9d67c263303dddc34.tar.gz linux-3e47f3a703c63aca1e1309f9d67c263303dddc34.tar.bz2 linux-3e47f3a703c63aca1e1309f9d67c263303dddc34.zip | |
mm, slab: remove duplicate kernel-doc comment for ksize()
commit c18c20f16219516b12a4f2fd29c25e06be97e064 upstream.
Akira reports:
> "make htmldocs" reports duplicate C declaration of ksize() as follows:
> /linux/Documentation/core-api/mm-api:43: ./mm/slab_common.c:1428: WARNING: Duplicate C declaration, also defined at core-api/mm-api:212.
> Declaration is '.. c:function:: size_t ksize (const void *objp)'.
> This is due to the kernel-doc comment for ksize() declaration added in
> include/linux/slab.h by commit 05a940656e1e ("slab: Introduce
> kmalloc_size_roundup()").
There is an older kernel-doc comment for ksize() definition in
mm/slab_common.c, which is not only duplicated, but also contradicts the
new one - the additional storage discovered by ksize() should not be
used by callers anymore. Delete the old kernel-doc.
Reported-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/all/d33440f6-40cf-9747-3340-e54ffaf7afb8@gmail.com/
Fixes: 05a940656e1e ("slab: Introduce kmalloc_size_roundup()")
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slab_common.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 06958c613b0a..315e83f5daea 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1305,20 +1305,6 @@ void kfree_sensitive(const void *p) } EXPORT_SYMBOL(kfree_sensitive); -/** - * ksize - get the actual amount of memory allocated for a given object - * @objp: Pointer to the object - * - * kmalloc may internally round up allocations and return more memory - * than requested. ksize() can be used to determine the actual amount of - * memory allocated. The caller may use this additional memory, even though - * a smaller amount of memory was initially specified with the kmalloc call. - * The caller must guarantee that objp points to a valid object previously - * allocated with either kmalloc() or kmem_cache_alloc(). The object - * must not be freed during the duration of the call. - * - * Return: size of the actual memory used by @objp in bytes - */ size_t ksize(const void *objp) { size_t size; |