In most scripts timeout_poll is defined to 30, but in diag.sh,
it's 100. To maintain consistency with other scripts, this patch
changes it to 30.

Signed-off-by: Geliang Tang <geliang.tang@linux.dev>
---
 tools/testing/selftests/net/mptcp/diag.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/mptcp/diag.sh b/tools/testing/selftests/net/mptcp/diag.sh
index 4b0cc5c41188..216123547131 100755
--- a/tools/testing/selftests/net/mptcp/diag.sh
+++ b/tools/testing/selftests/net/mptcp/diag.sh
@@ -5,7 +5,7 @@
 
 mptcp_lib_ns_init
 ksft_skip=4
-timeout_poll=100
+timeout_poll=30
 timeout_test=$((timeout_poll * 2 + 1))
 
 flush_pids()
-- 
2.35.3