From: Geliang Tang <[email protected]>
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 <[email protected]>
Acked-by: Yonghong Song <[email protected]>
---
tools/testing/selftests/bpf/test_sockmap.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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
--
2.43.0
