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authorFlorian Fainelli <f.fainelli@gmail.com>2014-07-08 22:15:03 +0400
committerDavid S. Miller <davem@davemloft.net>2014-07-09 07:43:35 +0400
commita37934fc0d0c087dd120dba229077048f1abfd37 (patch)
treeefb175f423d0ffa8453e7b30fe2ce38730daed70 /include/net/ipv6.h
parent35560392e311e2100ad72511c4eac9a2e1fe7859 (diff)
downloadlinux-a37934fc0d0c087dd120dba229077048f1abfd37.tar.xz
net: provide stubs for ip6_set_txhash and ip6_make_flowlabel
Commit cb1ce2ef387b ("ipv6: Implement automatic flow label generation on transmit") introduced ip6_make_flowlabel, while commit b73c3d0e4f0e ("net: Save TX flow hash in sock and set in skbuf on xmit") introduced ip6_set_txhash. ip6_set_tx_hash() uses sk_v6_daddr which references __sk_common.skc_v6_daddr from struct sock_common, which is gated with IS_ENABLED(CONFIG_IPV6). ip6_make_flowlabel() uses the ipv6 member from struct net which is also gated with IS_ENABLED(CONFIG_IPV6). When CONFIG_IPV6 is disabled, we will hit a build failure that looks like this when the compiler attempts inlining these functions: CC [M] drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.o In file included from include/net/inet_sock.h:27:0, from include/net/ip.h:30, from drivers/net/ethernet/broadcom/cnic.c:37: include/net/ipv6.h: In function 'ip6_set_txhash': include/net/sock.h:327:33: error: 'struct sock_common' has no member named 'skc_v6_daddr' #define sk_v6_daddr __sk_common.skc_v6_daddr ^ include/net/ipv6.h:696:49: note: in expansion of macro 'sk_v6_daddr' keys.dst = (__force __be32)ipv6_addr_hash(&sk->sk_v6_daddr); ^ In file included from include/net/inetpeer.h:15:0, from include/net/route.h:28, from include/net/ip.h:31, from drivers/net/ethernet/broadcom/cnic.c:37: include/net/ipv6.h: In function 'ip6_make_flowlabel': include/net/ipv6.h:706:37: error: 'struct net' has no member named 'ipv6' if (!flowlabel && (autolabel || net->ipv6.sysctl.auto_flowlabels)) { ^ Fixes: cb1ce2ef387b ("ipv6: Implement automatic flow label generation on transmit") Fixes: b73c3d0e4f0e ("net: Save TX flow hash in sock and set in skbuf on xmit") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ipv6.h')
-rw-r--r--include/net/ipv6.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4308f2ada8b3..b9ac2357e7db 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -685,6 +685,7 @@ static inline int ip6_sk_dst_hoplimit(struct ipv6_pinfo *np, struct flowi6 *fl6,
return hlimit;
}
+#if IS_ENABLED(CONFIG_IPV6)
static inline void ip6_set_txhash(struct sock *sk)
{
struct inet_sock *inet = inet_sk(sk);
@@ -718,6 +719,15 @@ static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb,
return flowlabel;
}
+#else
+static inline void ip6_set_txhash(struct sock *sk) { }
+static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb,
+ __be32 flowlabel, bool autolabel)
+{
+ return flowlabel;
+}
+#endif
+
/*
* Header manipulation