Alexander Aring 25f2b49f65 fs: dlm: fix build with CONFIG_IPV6 disabled
[ Upstream commit 1b9beda83e27a0c2cd75d1cb743c297c7b36c844 ]

This patch will surround the AF_INET6 case in sk_error_report() of dlm
with a #if IS_ENABLED(CONFIG_IPV6). The field sk->sk_v6_daddr is not
defined when CONFIG_IPV6 is disabled. If CONFIG_IPV6 is disabled, the
socket creation with AF_INET6 should already fail because a runtime
check if AF_INET6 is registered. However if there is the possibility
that AF_INET6 is set as sk_family the sk_error_report() callback will
print then an invalid family type error.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 4c3d90570bcc ("fs: dlm: don't call kernel_getpeername() in error_report()")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:03:13 +01:00
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