diff mbox series

[net,v2,12/17] selftests: forwarding: tc_flower: Relax success criterion

Message ID 20230808141503.4060661-13-idosch@nvidia.com (mailing list archive)
State Accepted
Commit 9ee37e53e7687654b487fc94e82569377272a7a8
Delegated to: Netdev Maintainers
Headers show
Series selftests: forwarding: Various fixes | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches (and no cover letter)
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers fail 1 blamed authors not CCed: jiri@resnulli.us; 3 maintainers not CCed: jiri@resnulli.us shuah@kernel.org linux-kselftest@vger.kernel.org
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success net selftest script(s) already in Makefile
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 20 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Ido Schimmel Aug. 8, 2023, 2:14 p.m. UTC
The test checks that filters that match on source or destination MAC
were only hit once. A host can send more than one packet with a given
source or destination MAC, resulting in failures.

Fix by relaxing the success criterion and instead check that the filters
were not hit zero times. Using tc_check_at_least_x_packets() is also an
option, but it is not available in older kernels.

Fixes: 07e5c75184a1 ("selftests: forwarding: Introduce tc flower matching tests")
Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Closes: https://lore.kernel.org/netdev/adc5e40d-d040-a65e-eb26-edf47dac5b02@alu.unizg.hr/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
---
 tools/testing/selftests/net/forwarding/tc_flower.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/forwarding/tc_flower.sh b/tools/testing/selftests/net/forwarding/tc_flower.sh
index 683711f41aa9..b1daad19b01e 100755
--- a/tools/testing/selftests/net/forwarding/tc_flower.sh
+++ b/tools/testing/selftests/net/forwarding/tc_flower.sh
@@ -52,8 +52,8 @@  match_dst_mac_test()
 	tc_check_packets "dev $h2 ingress" 101 1
 	check_fail $? "Matched on a wrong filter"
 
-	tc_check_packets "dev $h2 ingress" 102 1
-	check_err $? "Did not match on correct filter"
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_fail $? "Did not match on correct filter"
 
 	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
 	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
@@ -78,8 +78,8 @@  match_src_mac_test()
 	tc_check_packets "dev $h2 ingress" 101 1
 	check_fail $? "Matched on a wrong filter"
 
-	tc_check_packets "dev $h2 ingress" 102 1
-	check_err $? "Did not match on correct filter"
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_fail $? "Did not match on correct filter"
 
 	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
 	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower