netdev - [PATCH v5 2/7] ipv6 addrconf: remove addrconf_sysctl_hop

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Message-Id: <1474969963-17402-3-git-send-email-zenczykowski@gmail.com>
Date:   Tue, 27 Sep 2016 02:52:38 -0700
From:   Maciej Żenczykowski <zenczykowski@...il.com>
To:     Maciej Żenczykowski <maze@...gle.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Erik Kline <ek@...gle.com>,
        Lorenzo Colitti <lorenzo@...gle.com>,
        Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: [PATCH v5 2/7] ipv6 addrconf: remove addrconf_sysctl_hop_limit()

From: Maciej Żenczykowski <maze@...gle.com>

replace with extra1/2 magic

Signed-off-by: Maciej Żenczykowski <maze@...gle.com>
---
 net/ipv6/addrconf.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 11fa1a5564d4..8bd2d06eefe7 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -5467,20 +5467,6 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
 }
 
 static
-int addrconf_sysctl_hop_limit(struct ctl_table *ctl, int write,
-                              void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	struct ctl_table lctl;
-	int min_hl = 1, max_hl = 255;
-
-	lctl = *ctl;
-	lctl.extra1 = &min_hl;
-	lctl.extra2 = &max_hl;
-
-	return proc_dointvec_minmax(&lctl, write, buffer, lenp, ppos);
-}
-
-static
 int addrconf_sysctl_mtu(struct ctl_table *ctl, int write,
 			void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -5713,6 +5699,9 @@ int addrconf_sysctl_ignore_routes_with_linkdown(struct ctl_table *ctl,
 	return ret;
 }
 
+static const int one = 1;
+static const int two_five_five = 255;
+
 static const struct ctl_table addrconf_sysctl[] = {
 	{
 		.procname	= "forwarding",
@@ -5726,7 +5715,9 @@ static const struct ctl_table addrconf_sysctl[] = {
 		.data		= &ipv6_devconf.hop_limit,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= addrconf_sysctl_hop_limit,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= (void *)&one,
+		.extra2		= (void *)&two_five_five,
 	},
 	{
 		.procname	= "mtu",
-- 
2.8.0.rc3.226.g39d4020