diff mbox series

[net-next,v6,2/2] selftests/bpf: Add F_SETFL for fcntl in test_sockmap

Message ID dfbbec2d3144d8fd1022fa8326d53a3e511d63cb.1718096691.git.tanggeliang@kylinos.cn (mailing list archive)
State New
Headers show
Series Add F_SETFL for fcntl in test_sockmap | expand

Commit Message

Geliang Tang June 11, 2024, 9:13 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

Incorrect arguments are passed to fcntl() in test_sockmap.c when invoking
it to set file status flags. If O_NONBLOCK is used as 2nd argument and
passed into fcntl, -EINVAL will be returned (See do_fcntl() in fs/fcntl.c).
The correct approach is to use F_SETFL as 2nd argument, and O_NONBLOCK as
3rd one.

Fixes: 16962b2404ac ("bpf: sockmap, add selftests")
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
---
 tools/testing/selftests/bpf/test_sockmap.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
index 9cba4ec844a5..99d3ca8e44bb 100644
--- a/tools/testing/selftests/bpf/test_sockmap.c
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -604,7 +604,9 @@  static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
 		struct timeval timeout;
 		fd_set w;
 
-		fcntl(fd, fd_flags);
+		if (fcntl(fd, F_SETFL, fd_flags))
+			goto out_errno;
+
 		/* Account for pop bytes noting each iteration of apply will
 		 * call msg_pop_data helper so we need to account for this
 		 * by calculating the number of apply iterations. Note user