The patch titled
Subject: mm/util.c: update the kerneldoc for kstrdup_const()
has been added to the -mm tree. Its filename is
mm-util-update-the-kerneldoc-for-kstrdup_const.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-util-update-the-kerneldoc-for-kstrdup_const.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-util-update-the-kerneldoc-for-kstrdup_const.patch
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------------------------------------------------------
From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Subject: 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.
Link: http://lkml.kernel.org/r/20200817173927.23389-1-brgl@xxxxxxxx
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/util.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/util.c~mm-util-update-the-kerneldoc-for-kstrdup_const
+++ a/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.
_
Patches currently in -mm which might be from bgolaszewski@xxxxxxxxxxxx are
mm-util-update-the-kerneldoc-for-kstrdup_const.patch
