selftests: Fix suppress test in fib_tests.sh

fib_tests is spewing errors:
    ...
    Cannot open network namespace "ns1": No such file or directory
    Cannot open network namespace "ns1": No such file or directory
    Cannot open network namespace "ns1": No such file or directory
    Cannot open network namespace "ns1": No such file or directory
    ping: connect: Network is unreachable
    Cannot open network namespace "ns1": No such file or directory
    Cannot open network namespace "ns1": No such file or directory
    ...

Each test entry in fib_tests is supposed to do its own setup and
cleanup. Right now the $IP commands in fib_suppress_test are
failing because there is no ns1. Add the setup/cleanup and logging
expected for each test.

Fixes: ca7a03c41753 ("ipv6: do not free rt if FIB_LOOKUP_NOREF is set on suppress rule")
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index b7616704b55e982f20d55c768def568f54e0efc1..84205c3a55ebed11ddbbf307d771338e0f4d1ac5 100755 (executable)
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -618,16 +618,22 @@ fib_nexthop_test()
 
 fib_suppress_test()
 {
+       echo
+       echo "FIB rule with suppress_prefixlength"
+       setup
+
        $IP link add dummy1 type dummy
        $IP link set dummy1 up
        $IP -6 route add default dev dummy1
        $IP -6 rule add table main suppress_prefixlength 0
-       ping -f -c 1000 -W 1 1234::1 || true
+       ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
        $IP -6 rule del table main suppress_prefixlength 0
        $IP link del dummy1
 
        # If we got here without crashing, we're good.
-       return 0
+       log_test 0 0 "FIB rule suppress test"
+
+       cleanup
 }
 
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