Function udp_v4_early_demux() was already declared in 'include/net/udp.h',
no need to keep the extern in 'ip_input.c', which may produce the
following checkpatch warning:
WARNING: externs should be avoided in .c files
#45: FILE: net/ipv4/ip_input.c:322:
+enum skb_drop_reason udp_v4_early_demux(struct sk_buff *skb);
Replace it by including 'net/udp.h'. Do the same for tcp_v4_early_demux().
Signed-off-by: Wang Liang <wangliang74@huawei.com>
---
net/ipv4/ip_input.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 273578579a6b..19d3141dad1f 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -141,6 +141,8 @@
#include <linux/mroute.h>
#include <linux/netlink.h>
#include <net/dst_metadata.h>
+#include <net/udp.h>
+#include <net/tcp.h>
/*
* Process Router Attention IP option (RFC 2113)
@@ -317,8 +319,6 @@ static bool ip_can_use_hint(const struct sk_buff *skb, const struct iphdr *iph,
ip_hdr(hint)->tos == iph->tos;
}
-int tcp_v4_early_demux(struct sk_buff *skb);
-enum skb_drop_reason udp_v4_early_demux(struct sk_buff *skb);
static int ip_rcv_finish_core(struct net *net,
struct sk_buff *skb, struct net_device *dev,
const struct sk_buff *hint)
--
2.34.1