| From: John Hubbard <jhubbard@nvidia.com> |
| Subject: selftests/mm: fix unused variable warning in migration.c |
| Date: Thu, 1 Jun 2023 18:33:49 -0700 |
| |
| Declare the variable as volatile, in order to avoid the clang compiler |
| warning. |
| |
| Link: https://lkml.kernel.org/r/20230602013358.900637-4-jhubbard@nvidia.com |
| Signed-off-by: John Hubbard <jhubbard@nvidia.com> |
| Cc: Mel Gorman <mgorman@techsingularity.net> |
| Cc: Johannes Weiner <hannes@cmpxchg.org> |
| Cc: Mike Kravetz <mike.kravetz@oracle.com> |
| Cc: David Hildenbrand <david@redhat.com> |
| Cc: Peter Xu <peterx@redhat.com> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| tools/testing/selftests/mm/migration.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/tools/testing/selftests/mm/migration.c~selftests-mm-fix-unused-variable-warning-in-migrationc |
| +++ a/tools/testing/selftests/mm/migration.c |
| @@ -95,7 +95,7 @@ int migrate(uint64_t *ptr, int n1, int n |
| |
| void *access_mem(void *ptr) |
| { |
| - uint64_t y = 0; |
| + volatile uint64_t y = 0; |
| volatile uint64_t *x = ptr; |
| |
| while (1) { |
| _ |
