'head' is defined as 'static struct robust_list_head' that stores the local variable of 'struct lock_struct a' raising the Wdangling-pointer warning.
robust_list.c: In function ���child_circular_list���: robust_list.c:522:24: warning: storing the address of local variable ���a��� in ���head.list.next��� [-Wdangling-pointer=]
522 | head.list.next = &a.list; | ~~~~~~~~~~~~~~~^~~~~~~~~ robust_list.c:513:28: note: ���a��� declared here 513 | struct lock_struct a, b, c; | ^ robust_list.c:512:40: note: ���head��� declared here 512 | static struct robust_list_head head; | ^~~~
Since 'head' doesn't need static storge duration, removing the static keyword of it to fix this.
Signed-off-by: Ankit Khushwaha ankitkhushwaha.linux@gmail.com --- v3: Updated the patch name and msg as suggested by Andr��.
v2: https://lore.kernel.org/all/20251118170907.108832-1-ankitkhushwaha.linux@gma... Added changes suggested by Andr��.
v1: https://lore.kernel.org/all/20251118162619.50586-1-ankitkhushwaha.linux@gmai... --- tools/testing/selftests/futex/functional/robust_list.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/futex/functional/robust_list.c b/tools/testing/selftests/futex/functional/robust_list.c index e7d1254e18ca..ef21a7ec9def 100644 --- a/tools/testing/selftests/futex/functional/robust_list.c +++ b/tools/testing/selftests/futex/functional/robust_list.c @@ -509,7 +509,7 @@ TEST(test_robust_list_multiple_elements)
static int child_circular_list(void *arg) { - static struct robust_list_head head; + struct robust_list_head head; struct lock_struct a, b, c; int ret;
-- 2.52.0