linux-kernel - [PATCH net-next 4/5] net/ipv6/ndisc: constify ctl

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Message-Id: <20240527-sysctl-const-handler-net-v1-4-16523767d0b2@weissschuh.net>
Date: Mon, 27 May 2024 19:04:22 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, David Ahern <dsahern@...nel.org>, 
 Simon Horman <horms@...ge.net.au>, Julian Anastasov <ja@....bg>, 
 Pablo Neira Ayuso <pablo@...filter.org>, 
 Jozsef Kadlecsik <kadlec@...filter.org>
Cc: Joel Granados <j.granados@...sung.com>, 
 Luis Chamberlain <mcgrof@...nel.org>, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, lvs-devel@...r.kernel.org, 
 netfilter-devel@...r.kernel.org, coreteam@...filter.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH net-next 4/5] net/ipv6/ndisc: constify ctl_table arguments
 of utility function

The sysctl core is preparing to only expose instances of
struct ctl_table as "const".
This will also affect the ctl_table argument of sysctl handlers.

As the function prototype of all sysctl handlers throughout the tree
needs to stay consistent that change will be done in one commit.

To reduce the size of that final commit, switch utility functions which
are not bound by "typedef proc_handler" to "const struct ctl_table".

No functional change.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 net/ipv6/ndisc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index d914b23256ce..254b192c5705 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1936,7 +1936,7 @@ static struct notifier_block ndisc_netdev_notifier = {
 };

 #ifdef CONFIG_SYSCTL
-static void ndisc_warn_deprecated_sysctl(struct ctl_table *ctl,
+static void ndisc_warn_deprecated_sysctl(const struct ctl_table *ctl,
 					 const char *func, const char *dev_name)
 {
 	static char warncomm[TASK_COMM_LEN];

-- 
2.45.1