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net: ipv4: Remove extern udp_v4_early_demux()/tcp_v4_early_demux() in .c files 

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>
Link: https://patch.msgid.link/20251025092637.1020960-1-wangliang74@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Wang Liang 2025-10-25 17:26:37 +08:00 committed by Jakub Kicinski
parent a8abe8e210
commit f58abec23d
1 changed files with 2 additions and 2 deletions
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4
net/ipv4/ip_input.c
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@ -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)