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authorBrian Vazquez <brianvv@google.com>2021-02-01 17:41:32 +0000
committerJakub Kicinski <kuba@kernel.org>2021-02-03 14:51:40 -0800
commitbbd807dfbf20506f5548b0297c430a09326e7c4b (patch)
treecb2a2d1c678a1b3546d119d6b3a32ebb8ec7818e /net/ipv6/tcp_ipv6.c
parentf67fbeaebdc0356e0cbc94f4b099f45ebe174b02 (diff)
downloadlinux-bbd807dfbf20506f5548b0297c430a09326e7c4b.tar.gz
net: indirect call helpers for ipv4/ipv6 dst_check functions
This patch avoids the indirect call for the common case: ip6_dst_check and ipv4_dst_check Signed-off-by: Brian Vazquez <brianvv@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 0e1509b02cb30..d093ef3ef0603 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1420,6 +1420,8 @@ out:
return NULL;
}
+INDIRECT_CALLABLE_DECLARE(struct dst_entry *ipv4_dst_check(struct dst_entry *,
+ u32));
/* The socket must have it's spinlock held when we get
* here, unless it is a TCP_LISTEN socket.
*
@@ -1473,7 +1475,8 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
sk_mark_napi_id(sk, skb);
if (dst) {
if (inet_sk(sk)->rx_dst_ifindex != skb->skb_iif ||
- dst->ops->check(dst, np->rx_dst_cookie) == NULL) {
+ INDIRECT_CALL_1(dst->ops->check, ip6_dst_check,
+ dst, np->rx_dst_cookie) == NULL) {
dst_release(dst);
sk->sk_rx_dst = NULL;
}