linux-kernel - [PATCH -next] net/ipv4/sysctl_net_ipv4.c: remove superfluous header files from sysctl_net

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Date:   Mon, 20 Sep 2021 21:42:00 +0800
From:   Mianhan Liu <liumh1@...nghaitech.edu.cn>
To:     "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 -next] net/ipv4/sysctl_net_ipv4.c: remove superfluous header files from sysctl_net_ipv4.c

sysctl_net_ipv4.c hasn't use any macro or function declared in mm.h, module.h,
igmp.h, inetdevice.h, swap.h, slab.h, nsproxy.h, snmp.h, route.h and inet_frag.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@...nghaitech.edu.cn>

---
 net/ipv4/sysctl_net_ipv4.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 6f1e64d49..f8e39d00b 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -6,25 +6,15 @@
  * 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>
-- 
2.25.1