diff mbox series

[net] selftests: fix poll error in udpgro.sh

Message ID 66cc4a0ccb845f1b236a388bae3bc2171398fa41.1607512428.git.pabeni@redhat.com (mailing list archive)
State Accepted
Commit 38bf8cd821be292e7d8e6f6283d67c5d9708f887
Headers show
Series [net] selftests: fix poll error in udpgro.sh | expand

Commit Message

Paolo Abeni Dec. 9, 2020, 11:21 a.m. UTC
The test program udpgso_bench_rx always invokes the poll()
syscall with a timeout of 10ms. If a larger timeout is specified
via the command line, udpgso_bench_rx is supposed to do multiple
poll() calls till the timeout is expired or an event is received.

Currently the poll() loop errors out after the first invocation with
no events, and may causes self-tests failure alike:

failed
 GRO with custom segment size            ./udpgso_bench_rx: poll: 0x0 expected 0x1

This change addresses the issue allowing the poll() loop to consume
all the configured timeout.

Fixes: ada641ff6ed3 ("selftests: fixes for UDP GRO")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
 tools/testing/selftests/net/udpgso_bench_rx.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/udpgso_bench_rx.c b/tools/testing/selftests/net/udpgso_bench_rx.c
index db3d4a8b5a4c..76a24052f4b4 100644
--- a/tools/testing/selftests/net/udpgso_bench_rx.c
+++ b/tools/testing/selftests/net/udpgso_bench_rx.c
@@ -113,6 +113,9 @@  static void do_poll(int fd, int timeout_ms)
 				interrupted = true;
 				break;
 			}
+
+			/* no events and more time to wait, do poll again */
+			continue;
 		}
 		if (pfd.revents != POLLIN)
 			error(1, errno, "poll: 0x%x expected 0x%x\n",