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authorPeter Xu <peterx@redhat.com>2023-01-16 11:33:07 -0500
committerAndrew Morton <akpm@linux-foundation.org>2023-01-18 17:20:52 -0800
commit0ca2c535f5a07f01118a6a70bfab78576e02fcae (patch)
tree2ffe1ffb0bfed987261ccbec2d8b872c97b45d99 /tools/testing
parent7e3ce3f8d2d235f916baad1582f6cf12e0319013 (diff)
selftests/vm: remove __USE_GNU in hugetlb-madvise.c
__USE_GNU should be an internal macro only used inside glibc. Either memfd_create() or fallocate() requires _GNU_SOURCE per man page, where __USE_GNU will further be defined by glibc headers include/features.h: #ifdef _GNU_SOURCE # define __USE_GNU 1 #endif This fixes: >> hugetlb-madvise.c:20: warning: "__USE_GNU" redefined 20 | #define __USE_GNU | In file included from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33, from /usr/include/stdlib.h:26, from hugetlb-madvise.c:16: /usr/include/features.h:407: note: this is the location of the previous definition 407 | # define __USE_GNU 1 | Link: https://lkml.kernel.org/r/Y8V9z+z6Tk7NetI3@x1n Signed-off-by: Peter Xu <peterx@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/vm/hugetlb-madvise.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/tools/testing/selftests/vm/hugetlb-madvise.c b/tools/testing/selftests/vm/hugetlb-madvise.c
index a634f47d1e56..9a127a8fe176 100644
--- a/tools/testing/selftests/vm/hugetlb-madvise.c
+++ b/tools/testing/selftests/vm/hugetlb-madvise.c
@@ -17,7 +17,6 @@
#include <stdio.h>
#include <unistd.h>
#include <sys/mman.h>
-#define __USE_GNU
#include <fcntl.h>
#define MIN_FREE_PAGES 20