[SRU Noble/Oracular PATCH 1/1] Revert "UBUNTU: SAUCE: selftests: net: fix "from" match test in fib_rule_tests.sh"

[Masahiro Yamada]

The commit in question dates back to 2019 and still persists in the
Noble kernels.

It has been unnecessary since the upstream kernel applied a similar fix,
d1abf388604f ("selftests: fib_rule_tests: enable forwarding before ipv4
from/iif test").

Now, it is causing an issue with this kselftest:

  $ linux/tools/testing/selftests/net$ sudo ./fib_rule_tests.sh
  Cannot open network namespace "testns": No such file or directory

The reason for the failure is obvious; there is no such a namespace
since the upstream commit 6c0ee7b4d69d ("selftests/net: convert
fib_rule_tests.sh to run it in unique namespace").

In our SRU cycles, net:fib_rule_tests.sh in ubuntu_kselftests_net
fails across all Noble kernels:

  11238         20:50:51 DEBUG| [stdout] # Cannot open network namespace "testns": No such file or directory

Reverting the outdated commit fixes this failure.

BugLink: https://bugs.launchpad.net/bugs/2066332
Signed-off-by: Masahiro Yamada <masahiro.yamada at canonical.com>
---

 tools/testing/selftests/net/fib_rule_tests.sh | 2 --
 1 file changed, 2 deletions(-)

diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh
index c8d1c297b7a1..51157a5559b7 100755
--- a/tools/testing/selftests/net/fib_rule_tests.sh
+++ b/tools/testing/selftests/net/fib_rule_tests.sh
@@ -87,8 +87,6 @@ setup()
 	$IP address add $DEV_ADDR/24 dev dummy0
 	$IP -6 address add $DEV_ADDR6/64 dev dummy0
 
-	ip netns exec testns sysctl -w net.ipv4.ip_forward=1
-
 	set +e
 }
 
-- 
2.40.1