From fd3ba6d1ca4b716630b9bc015698f35773a6dd02 Mon Sep 17 00:00:00 2001 From: Yi-Hung Wei Date: Wed, 29 Apr 2020 14:25:50 -0700 Subject: [PATCH] compat: Fix ipv6_dst_lookup build error The geneve/vxlan compat code base invokes ipv6_dst_lookup() which is recently replaced by ipv6_dst_lookup_flow() in the stable kernel tree. This causes travis build failure: * https://travis-ci.org/github/openvswitch/ovs/builds/681084038 This patch updates the backport logic to invoke the right function. Related patch in git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git b9f3e457098e ("net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup") Signed-off-by: Yi-Hung Wei Signed-off-by: William Tu (cherry picked from commit 5519e384f6a17f564fef4c5eb39e471e16c77235) Signed-off-by: Yousong Zhou --- acinclude.m4 | 3 +++ datapath/linux/compat/geneve.c | 11 +++++++---- datapath/linux/compat/vxlan.c | 14 ++++++++------ 3 files changed, 18 insertions(+), 10 deletions(-) --- a/acinclude.m4 +++ b/acinclude.m4 @@ -510,7 +510,10 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net], [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])]) + OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow.*net], + [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_FLOW_NET])]) OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub]) + OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow]) OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL]) --- a/datapath/linux/compat/geneve.c +++ b/datapath/linux/compat/geneve.c @@ -962,15 +962,18 @@ static struct dst_entry *geneve_get_v6_d return dst; } -#ifdef HAVE_IPV6_DST_LOOKUP_NET +#if defined(HAVE_IPV6_DST_LOOKUP_FLOW_NET) + if (ipv6_stub->ipv6_dst_lookup_flow(geneve->net, gs6->sock->sk, &dst, + fl6)) { +#elif defined(HAVE_IPV6_DST_LOOKUP_FLOW) + if (ipv6_stub->ipv6_dst_lookup_flow(gs6->sock->sk, &dst, fl6)) { +#elif defined(HAVE_IPV6_DST_LOOKUP_NET) if (ipv6_stub->ipv6_dst_lookup(geneve->net, gs6->sock->sk, &dst, fl6)) { -#else -#ifdef HAVE_IPV6_STUB +#elif defined(HAVE_IPV6_STUB) if (ipv6_stub->ipv6_dst_lookup(gs6->sock->sk, &dst, fl6)) { #else if (ip6_dst_lookup(gs6->sock->sk, &dst, fl6)) { #endif -#endif netdev_dbg(dev, "no route to %pI6\n", &fl6->daddr); return ERR_PTR(-ENETUNREACH); } --- a/datapath/linux/compat/vxlan.c +++ b/datapath/linux/compat/vxlan.c @@ -990,18 +990,20 @@ static struct dst_entry *vxlan6_get_rout fl6.fl6_dport = dport; fl6.fl6_sport = sport; -#ifdef HAVE_IPV6_DST_LOOKUP_NET - err = ipv6_stub->ipv6_dst_lookup(vxlan->net, - sock6->sock->sk, +#if defined(HAVE_IPV6_DST_LOOKUP_FLOW_NET) + err = ipv6_stub->ipv6_dst_lookup_flow(vxlan->net, sock6->sock->sk, + &ndst, &fl6); +#elif defined(HAVE_IPV6_DST_LOOKUP_FLOW) + err = ipv6_stub->ipv6_dst_lookup_flow(sock6->sock->sk, &ndst, &fl6); +#elif defined(HAVE_IPV6_DST_LOOKUP_NET) + err = ipv6_stub->ipv6_dst_lookup(vxlan->net, sock6->sock->sk, &ndst, &fl6); -#else -#ifdef HAVE_IPV6_STUB +#elif defined(HAVE_IPV6_STUB) err = ipv6_stub->ipv6_dst_lookup(vxlan->vn6_sock->sock->sk, &ndst, &fl6); #else err = ip6_dst_lookup(vxlan->vn6_sock->sock->sk, &ndst, &fl6); #endif -#endif if (err < 0) return ERR_PTR(err);