** Description changed:

  [Impact]
  Focal linux 5.4.0-57.63 backported from v5.4.78 upstream stable release the 
following commit, which broke the build of xtables-addons dkms modules on Focal 
and Bionic for all 5.4 kernels based on this release:
  
  "netfilter: use actual socket sk rather than skb sk when routing harder"
  (Upstream commit 46d6c5ae953cc0be38efd0e469284df7c4328cf8).
+ 
+ For Groovy, linux-5.8.y is not maintained upstream anymore. Our Groovy
+ kernel will receive upstream stabled patches from 5.4.y and 5.9.y, which
+ will get this commit applied likely for the next SRU cycle.
  
  [Test case]
  Install xtables-addons-dkms package.
  
  [Fix]
  The proposed fix is a backport of a fix applied to xtables-addons 
3.9-1ubuntu1 on the development release (hirsute). This patch fixes the API 
change for the 5.10.0 kernel, the proposed fix extends the check for all 5.4.y 
kernels after 5.4.78.
  
  [Where problems could occur]
  If the backport was not done correctly, the dkms packages could fail building 
again.
  
  -----
  Testing failed on:
      amd64: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/x/xtables-addons/20201130_225717_5a440@/log.gz
      arm64: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/arm64/x/xtables-addons/20201130_231636_db3fa@/log.gz
      armhf: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/armhf/x/xtables-addons/20201130_230156_f17a8@/log.gz
      ppc64el: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/ppc64el/x/xtables-addons/20201130_231718_e060b@/log.gz
      s390x: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/s390x/x/xtables-addons/20201130_225000_2fcfa@/log.gz
  
  Build of the dkms is failing with the following error:
  
  /var/lib/dkms/xtables-addons/3.8/build/extensions/xt_DELUDE.c: In function 
‘delude_send_reset’:
  /var/lib/dkms/xtables-addons/3.8/build/extensions/xt_DELUDE.c:125:30: error: 
passing argument 2 of ‘ip_route_me_harder’ from incompatible pointer type 
[-Werror=incompatible-pointer-types]
    125 |  if (ip_route_me_harder(net, nskb, addr_type))
        |                              ^~~~
        |                              |
        |                              struct sk_buff *
  In file included from ./include/linux/netfilter/x_tables.h:245,
                   from 
/var/lib/dkms/xtables-addons/3.8/build/extensions/xt_DELUDE.c:20:
  ./include/linux/netfilter_ipv4.h:19:54: note: expected ‘struct sock *’ but 
argument is of type ‘struct sk_buff *’

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https://bugs.launchpad.net/bugs/1907109

Title:
  xtables-addons 3.0-0.1ubuntu4/3.8-2ubuntu0.1 fails to build with linux
  5.4.0-57.63

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