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

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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@lanxincomputing.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20261022103023.834927-1-jinli@lanxincomputing.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jin Li 2026-10-22 18:30:22 +08:00 committed by Jakub Kicinski
parent b88b826ec5
commit 9e2ba4a177
1 changed files with 2 additions and 1 deletions
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3
tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
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@ -383,7 +383,8 @@ 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"