linux-kernel - [PATCH] net: hamradio: remove unused variable

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Message-Id: <20180617130335.3947-1-stefan@agner.ch>
Date:   Sun, 17 Jun 2018 15:03:30 +0200
From:   Stefan Agner <stefan@...er.ch>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Stefan Agner <stefan@...er.ch>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] net: hamradio: remove unused variable

The array bpq_eth_addr is only used to get the size of an
address. Remove the array and use the size of the array
bcast_addr which is actually copied.

Also constify and tidy up the bcast_addr declaration.

This fixes a warning seen with clang:
drivers/net/hamradio/bpqether.c:94:13: warning: variable 'bpq_eth_addr' is not
      needed and will not be emitted [-Wunneeded-internal-declaration]
static char bpq_eth_addr[6];
            ^
1 warning generated.

Signed-off-by: Stefan Agner <stefan@...er.ch>
---
 drivers/net/hamradio/bpqether.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index f347fd9c5b28..8c9c9977241e 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -89,9 +89,7 @@
 static const char banner[] __initconst = KERN_INFO \
 	"AX.25: bpqether driver version 004\n";
 
-static char bcast_addr[6]={0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
-
-static char bpq_eth_addr[6];
+static const char bcast_addr[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 
 static int bpq_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
 static int bpq_device_event(struct notifier_block *, unsigned long, void *);
@@ -501,8 +499,8 @@ static int bpq_new_device(struct net_device *edev)
 	bpq->ethdev = edev;
 	bpq->axdev = ndev;
 
-	memcpy(bpq->dest_addr, bcast_addr, sizeof(bpq_eth_addr));
-	memcpy(bpq->acpt_addr, bcast_addr, sizeof(bpq_eth_addr));
+	memcpy(bpq->dest_addr, bcast_addr, sizeof(bcast_addr));
+	memcpy(bpq->acpt_addr, bcast_addr, sizeof(bcast_addr));
 
 	err = register_netdevice(ndev);
 	if (err)
-- 
2.17.1