ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM

On architectures defining _HAVE_ARCH_IPV6_CSUM, we get csum_ipv6_magic() defined by means of arch checksum.h headers. On other architectures, we actually need to include net/ip6_checksum.h to be able to use it. Without this include, building with defconfig breaks at least for s390. Reported-by: Stephen Rothwell <[email protected]> Fixes: 4cb47a8 ("tunnels: PMTU discovery support for directly bridged IP packets") Signed-off-by: Stefano Brivio <[email protected]> Signed-off-by: David S. Miller <[email protected]>
mrcsosa · Aug 5, 2020 · 8ed54f1 · 8ed54f1
1 parent 16f6458
commit 8ed54f1
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
@@ -25,6 +25,7 @@
 #include <net/protocol.h>
 #include <net/ip_tunnels.h>
 #include <net/ip6_tunnel.h>
+#include <net/ip6_checksum.h>
 #include <net/arp.h>
 #include <net/checksum.h>
 #include <net/dsfield.h>