[PATCH] net: ipv4: ipconfig: fix unused variable

[PATCH] net: ipv4: ipconfig: fix unused variable

[Anders Roxell]

When CONFIG_PROC_FS isn't set, variable ipconfig_dir isn't used.
net/ipv4/ipconfig.c:167:31: warning: ‘ipconfig_dir’ defined but not used [-Wunused-variable]
 static struct proc_dir_entry *ipconfig_dir;
                               ^~~~~~~~~~~~
Move the declaration of ipconfig_dir inside the CONFIG_PROC_FS ifdef to
fix the warning.

Fixes: c04d2cb2009f ("ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 net/ipv4/ipconfig.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index d839d74853fc..86c9f755de3d 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -163,9 +163,6 @@ static u8 ic_domain[64];		/* DNS (not NIS) domain name */
  * Private state.
  */
 
-/* proc_dir_entry for /proc/net/ipconfig */
-static struct proc_dir_entry *ipconfig_dir;
-
 /* Name of user-selected boot device */
 static char user_dev_name[IFNAMSIZ] __initdata = { 0, };
 
@@ -1292,6 +1289,8 @@ static int __init ic_dynamic(void)
 #endif /* IPCONFIG_DYNAMIC */
 
 #ifdef CONFIG_PROC_FS
+/* proc_dir_entry for /proc/net/ipconfig */
+static struct proc_dir_entry *ipconfig_dir;
 
 /* Name servers: */
 static int pnp_seq_show(struct seq_file *seq, void *v)
-- 
2.17.0

Re: [PATCH] net: ipv4: ipconfig: fix unused variable

[David Miller]

From: Anders Roxell <anders.roxell@linaro.org>
Date: Sun, 13 May 2018 21:48:30 +0200

> When CONFIG_PROC_FS isn't set, variable ipconfig_dir isn't used.
> net/ipv4/ipconfig.c:167:31: warning: ‘ipconfig_dir’ defined but not used [-Wunused-variable]
>  static struct proc_dir_entry *ipconfig_dir;
>                                ^~~~~~~~~~~~
> Move the declaration of ipconfig_dir inside the CONFIG_PROC_FS ifdef to
> fix the warning.
> 
> Fixes: c04d2cb2009f ("ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers")
> Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

Applied.