[OEM-5.6][SRU][PATCH 1/1] selftests: net: ip_defrag: modprobe missing nf_defrag_ipv6 support

[Po-Hsu Lin]

From: Paolo Pisati <paolo.pisati at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/1919147

Fix ip_defrag.sh when CONFIG_NF_DEFRAG_IPV6=m:

$ sudo ./ip_defrag.sh
+ set -e
+ mktemp -u XXXXXX
+ readonly NETNS=ns-rGlXcw
+ trap cleanup EXIT
+ setup
+ ip netns add ns-rGlXcw
+ ip -netns ns-rGlXcw link set lo up
+ ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_high_thresh=9000000
+ ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_low_thresh=7000000
+ ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_time=1
+ ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_high_thresh=9000000
+ ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_low_thresh=7000000
+ ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_time=1
+ ip netns exec ns-rGlXcw sysctl -w net.netfilter.nf_conntrack_frag6_high_thresh=9000000
+ cleanup
+ ip netns del ns-rGlXcw

$ ls -la /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh
ls: cannot access '/proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh': No such file or directory

$ sudo modprobe nf_defrag_ipv6
$ ls -la /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh
-rw-r--r-- 1 root root 0 Jul 14 12:34 /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh

Signed-off-by: Paolo Pisati <paolo.pisati at canonical.com>
Reviewed-by: Jakub Kicinski <kuba at kernel.org>
Signed-off-by: David S. Miller <davem at davemloft.net>
(cherry picked from commit aba69d49fb49c9166596dd78926514173b7f9ab5)
Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
---
 tools/testing/selftests/net/ip_defrag.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/ip_defrag.sh b/tools/testing/selftests/net/ip_defrag.sh
index 15d3489..ceb7ad4 100755
--- a/tools/testing/selftests/net/ip_defrag.sh
+++ b/tools/testing/selftests/net/ip_defrag.sh
@@ -6,6 +6,8 @@
 set +x
 set -e
 
+modprobe -q nf_defrag_ipv6
+
 readonly NETNS="ns-$(mktemp -u XXXXXX)"
 
 setup() {
-- 
2.7.4