From: Andrew Delgadillo adelg@google.com

commit 2c5db60e46ad ("tests: add close_range() tests") adds the close_range test under the core namespace. In its current form, the close_range test has an unused variable, namely, ret. For those building with -Werror,-Wall, this breaks the build.

Without this patch: $ make -C tools/testing/selftests/ TARGETS=core V=1 CFLAGS="-Werror -Wall"

make: Entering directory '/.../kernel-src/tools/testing/selftests' make[1]: Entering directory '/.../kernel-src/tools/testing/selftests/core' gcc -Werror -Wall close_range_test.c -o /.../kernel-src/tools/testing/selftests/core/close_range_test close_range_test.c: In function 'core_close_range': close_range_test.c:55:16: error: unused variable 'ret' [-Werror=unused-variable] 55 | int i, ret; | ^~~ cc1: all warnings being treated as errors make[1]: *** [../lib.mk:135: /.../kernel-src/tools/testing/selftests/core/close_range_test] Error 1 make[1]: Leaving directory '/.../kernel-src/tools/testing/selftests/core' make: *** [Makefile:155: all] Error 2 make: Leaving directory '/.../kernel-src/tools/testing/selftests'

With this patch: $ make -C tools/testing/selftests/ TARGETS=core V=1 CFLAGS="-Werror -Wall"

make: Entering directory '/.../kernel-src/tools/testing/selftests' make[1]: Entering directory '/.../kernel-src/tools/testing/selftests/core' gcc -Werror -Wall close_range_test.c -o /.../kernel-src/tools/testing/selftests/core/close_range_test make[1]: Leaving directory '/.../kernel-src/tools/testing/selftests/core' make: Leaving directory '/.../kernel-src/tools/testing/selftests'

Fixes: 2c5db60e46ad ("tests: add close_range() tests") Cc: stable@vger.kernel.org Signed-off-by: Andrew Delgadillo adelg@google.com --- tools/testing/selftests/core/close_range_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c index 749239930ca83..17c76c6c13cb9 100644 --- a/tools/testing/selftests/core/close_range_test.c +++ b/tools/testing/selftests/core/close_range_test.c @@ -52,7 +52,7 @@ static inline int sys_close_range(unsigned int fd, unsigned int max_fd,

TEST(core_close_range) { - int i, ret; + int i; int open_fds[101];

for (i = 0; i < ARRAY_SIZE(open_fds); i++) {