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test_list_sort: fix up const mismatch

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In the internal cmp function, a const pointer is cast out to a non-const
pointer by using container_of().  This is probably not what is intended
at all, so fix up the const marking to properly preserve what is really
happening (i.e. the const should flow through the container_of() call)

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: David Gow <davidgow@google.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Kees Cook <kees@kernel.org>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: David Gow <davidgow@google.com>
Link: https://patch.msgid.link/2025121751-backtrack-manifesto-7c57@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2025-12-17 13:36:52 +01:00
parent bd87458c16
commit 86b31a2c81
1 changed files with 2 additions and 2 deletions
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4
lib/tests/test_list_sort.c
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@ -26,7 +26,7 @@ struct debug_el {
unsigned int serial;
};
static void check(struct kunit *test, struct debug_el *ela, struct debug_el *elb)
static void check(struct kunit *test, const struct debug_el *ela, const struct debug_el *elb)
{
struct debug_el **elts = test->priv;
@ -46,7 +46,7 @@ static void check(struct kunit *test, struct debug_el *ela, struct debug_el *elb
/* `priv` is the test pointer so check() can fail the test if the list is invalid. */
static int cmp(void *priv, const struct list_head *a, const struct list_head *b)
{
struct debug_el *ela, *elb;
const struct debug_el *ela, *elb;
ela = container_of(a, struct debug_el, list);
elb = container_of(b, struct debug_el, list);