ipv4: tunnel: fix compilation on ARCH=um
authorJohannes Berg <johannes.berg@intel.com>
Wed, 12 Aug 2020 19:08:53 +0000 (21:08 +0200)
committerDavid S. Miller <davem@davemloft.net>
Wed, 12 Aug 2020 19:57:51 +0000 (12:57 -0700)
commit06a7a37be55e29961c9ba2abec4d07c8e0e21861
treec46d70e7eabd39227afe454d89cd2589dd61b3f7
parent1980c05844830a44708c98c96d600833aa3fae08
ipv4: tunnel: fix compilation on ARCH=um

With certain configurations, a 64-bit ARCH=um errors
out here with an unknown csum_ipv6_magic() function.
Include the right header file to always have it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_tunnel_core.c