linux-kernel - [PATCH] [net-next] net: ipconfig: move ic_nameservers

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Message-Id: <20230519093250.4011881-1-arnd@kernel.org>
Date:   Fri, 19 May 2023 11:32:38 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        David Ahern <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Martin Wetterwald <martin@...terwald.eu>
Cc:     Arnd Bergmann <arnd@...db.de>, XueBing Chen <chenxuebing@...i.cn>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Saravana Kannan <saravanak@...gle.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] [net-next] net: ipconfig: move ic_nameservers_fallback into #ifdef block

From: Arnd Bergmann <arnd@...db.de>

The new variable is only used when IPCONFIG_BOOTP is defined and otherwise
causes a warning:

net/ipv4/ipconfig.c:177:12: error: 'ic_nameservers_fallback' defined but not used [-Werror=unused-variable]

Move it next to the user.

Fixes: 81ac2722fa19 ("net: ipconfig: Allow DNS to be overwritten by DHCPACK")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 net/ipv4/ipconfig.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 202fa1943ccd..c56b6fe6f0d7 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -173,9 +173,6 @@ static int ic_proto_have_if __initdata;
 /* MTU for boot device */
 static int ic_dev_mtu __initdata;
 
-/* DHCPACK can overwrite DNS if fallback was set upon first BOOTP reply */
-static int ic_nameservers_fallback __initdata;
-
 #ifdef IPCONFIG_DYNAMIC
 static DEFINE_SPINLOCK(ic_recv_lock);
 static volatile int ic_got_reply __initdata;    /* Proto(s) that replied */
@@ -668,6 +665,9 @@ static struct packet_type bootp_packet_type __initdata = {
 	.func =	ic_bootp_recv,
 };
 
+/* DHCPACK can overwrite DNS if fallback was set upon first BOOTP reply */
+static int ic_nameservers_fallback __initdata;
+
 /*
  *  Initialize DHCP/BOOTP extension fields in the request.
  */
-- 
2.39.2