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From: Mianhan Liu <liumh1@shanghaitech.edu.cn>
To: "David S. Miller" <davem@davemloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
        David Ahern <dsahern@kernel.org>
CC: Jakub Kicinski <kuba@kernel.org>, <netdev@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        Mianhan Liu <liumh1@shanghaitech.edu.cn>
Subject: [PATCH -next v2] net/ipv4/sysctl_net_ipv4.c: remove superfluous
 header files from sysctl_net_ipv4.c
Date: Tue, 21 Sep 2021 15:47:51 +0800
Message-ID: <20210921074751.6182-1-liumh1@shanghaitech.edu.cn>
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sysctl_net_ipv4.c hasn't use any macro or function declared in igmp.h,
inetdevice.h, mm.h, module.h, nsproxy.h, swap.h, inet_frag.h, route.h
and snmp.h. Thus, these files can be removed from sysctl_net_ipv4.c
safely without affecting the compilation of the net module.

Signed-off-by: Mianhan Liu <liumh1@shanghaitech.edu.cn>
---
 net/ipv4/sysctl_net_ipv4.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 6f1e64d49..4680268f2 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -6,25 +6,16 @@
  * Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS]
  */
 
-#include <linux/mm.h>
-#include <linux/module.h>
 #include <linux/sysctl.h>
-#include <linux/igmp.h>
-#include <linux/inetdevice.h>
 #include <linux/seqlock.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/nsproxy.h>
-#include <linux/swap.h>
-#include <net/snmp.h>
 #include <net/icmp.h>
 #include <net/ip.h>
 #include <net/ip_fib.h>
-#include <net/route.h>
 #include <net/tcp.h>
 #include <net/udp.h>
 #include <net/cipso_ipv4.h>
-#include <net/inet_frag.h>
 #include <net/ping.h>
 #include <net/protocol.h>
 #include <net/netevent.h>