netdev - [PATCH] net/ipv4/xfrm4_tunnel.c: remove superfluous header files from xfrm4

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Message-ID: <20210920115831.29802-1-liumh1@shanghaitech.edu.cn>
Date:   Mon, 20 Sep 2021 19:58:31 +0800
From:   Mianhan Liu <liumh1@...nghaitech.edu.cn>
To:     Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>
CC:     Jakub Kicinski <kuba@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Mianhan Liu <liumh1@...nghaitech.edu.cn>
Subject: [PATCH] net/ipv4/xfrm4_tunnel.c: remove superfluous header files from xfrm4_tunnel.c

xfrm4_tunnel.c hasn't use any macro or function declared in mutex.h and ip.h
Thus, these files can be removed from xfrm4_tunnel.c safely without affecting
the compilation of the net module.

Signed-off-by: Mianhan Liu <liumh1@...nghaitech.edu.cn>
---
 net/ipv4/xfrm4_tunnel.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index f4555a88f..9d4f418f1 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -8,9 +8,7 @@
 
 #include <linux/skbuff.h>
 #include <linux/module.h>
-#include <linux/mutex.h>
 #include <net/xfrm.h>
-#include <net/ip.h>
 #include <net/protocol.h>
 
 static int ipip_output(struct xfrm_state *x, struct sk_buff *skb)
-- 
2.25.1