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selftests: forwarding: skip if kernel not support setting bridge fdb learning limit

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If the testing kernel doesn't support setting fdb_max_learned or show
fdb_n_learned, just skip it. Or we will get errors like

./bridge_fdb_learning_limit.sh: line 218: [: null: integer expression expected
./bridge_fdb_learning_limit.sh: line 225: [: null: integer expression expected

Fixes: 6f84090333 ("selftests: forwarding: bridge_fdb_learning_limit: Add a new selftest")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Johannes Nixdorf <jnixdorf-oss@avm.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hangbin Liu 2024-07-23 16:22:52 +08:00 committed by David S. Miller
parent fa96c6baef
commit 863ff546fb
1 changed files with 18 additions and 0 deletions
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18
tools/testing/selftests/net/forwarding/bridge_fdb_learning_limit.sh
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@ -178,6 +178,22 @@ fdb_del()
check_err $? "Failed to remove a FDB entry of type ${type}"
}
check_fdb_n_learned_support()
{
if ! ip link help bridge 2>&1 | grep -q "fdb_max_learned"; then
echo "SKIP: iproute2 too old, missing bridge max learned support"
exit $ksft_skip
fi
ip link add dev br0 type bridge
local learned=$(fdb_get_n_learned)
ip link del dev br0
if [ "$learned" == "null" ]; then
echo "SKIP: kernel too old; bridge fdb_n_learned feature not supported."
exit $ksft_skip
fi
}
check_accounting_one_type()
{
local type=$1 is_counted=$2 overrides_learned=$3
@ -274,6 +290,8 @@ check_limit()
done
}
check_fdb_n_learned_support
trap cleanup EXIT
setup_prepare