[PATCH] selftests: net: forwarding: bridge_vlan_mcast: Allow default startup query interval to vary by HZ

[Jin Li]

The mcast_startup_query_interval default value is calculated as
125 * HZ / 4. With CONFIG_HZ=250, this results in 3124 instead of
3125 due to integer truncation. The test currently hardcodes 3125,
which fails on kernels built with CONFIG_HZ=250.

Allow a +/- 1 tolerance for the default value check to account for
this rounding, while still catching genuine regressions in the
default value.

Signed-off-by: Jin Li <jinli@xxxxxxxxxxxxxxxxxxx>
---
 tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
index c4cd2078a8db..e72680869721 100755
--- a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
@@ -383,7 +383,7 @@ vlmc_startup_query_test()
 
 	echo -n $goutput |
 		jq -e ".[].vlans[] | select(.vlan == 10 and \
-					    .mcast_startup_query_interval == 3125) " &>/dev/null
+                                           .mcast_startup_query_interval >= 3124 and .mcast_startup_query_interval <= 3126) " &>/dev/null
 	check_err $? "Wrong default mcast_startup_query_interval global vlan option value"
 	log_test "Vlan mcast_startup_query_interval global option default value"
 
-- 
2.53.0