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| author | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-10-15 20:07:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-16 11:11:17 -0700 |
| commit | 295a17302348bc38704ef0f11ca2ce4ce58db2e9 (patch) | |
| tree | dfbb18edaa5be3a2400779c804d9c41903e8aa2b | |
| parent | 406100762ae9ae5b7709c737ada3089160a0f77a (diff) | |
| download | linux-295a17302348bc38704ef0f11ca2ce4ce58db2e9.tar.gz linux-295a17302348bc38704ef0f11ca2ce4ce58db2e9.tar.bz2 linux-295a17302348bc38704ef0f11ca2ce4ce58db2e9.zip | |
mm/util.c: update the kerneldoc for kstrdup_const()
Memory allocated with kstrdup_const() must not be passed to regular
krealloc() as it is not aware of the possibility of the chunk residing in
.rodata. Since there are no potential users of krealloc_const() at the
moment, let's just update the doc to make it explicit.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200817173927.23389-1-brgl@bgdev.pl
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/util.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/util.c b/mm/util.c index 4e21fe7eae27..4ddb6e186dd5 100644 --- a/mm/util.c +++ b/mm/util.c @@ -69,7 +69,8 @@ EXPORT_SYMBOL(kstrdup); * @s: the string to duplicate * @gfp: the GFP mask used in the kmalloc() call when allocating memory * - * Note: Strings allocated by kstrdup_const should be freed by kfree_const. + * Note: Strings allocated by kstrdup_const should be freed by kfree_const and + * must not be passed to krealloc(). * * Return: source string if it is in .rodata section otherwise * fallback to kstrdup. |