'status' is used to interact with a hardware register.  It might not
be safe to remove it entirely.  Mark it as __maybe_unused instead.

Fixes the following W=1 kernel build warning(s):

 drivers/net/ethernet/smsc/smc911x.c: In function ‘smc911x_phy_configure’:
 drivers/net/ethernet/smsc/smc911x.c:882:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable]
 drivers/net/ethernet/smsc/smc911x.c: In function ‘smc911x_phy_interrupt’:
 drivers/net/ethernet/smsc/smc911x.c:976:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable]
 drivers/net/ethernet/smsc/smc911x.c: In function ‘smc911x_timeout’:
 drivers/net/ethernet/smsc/smc911x.c:1251:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable]

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Dustin McIntire <redacted>
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <redacted>
---
 drivers/net/ethernet/smsc/smc911x.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 01069dfaf75c9..552953c376fe3 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c

@@ -879,7 +879,7 @@ static void smc911x_phy_configure(struct work_struct *work)
 	int phyaddr = lp->mii.phy_id;
 	int my_phy_caps; /* My PHY capabilities */
 	int my_ad_caps; /* My Advertised capabilities */
-	int status;
+	int __maybe_unused status;
 	unsigned long flags;
 
 	DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);

@@ -973,7 +973,7 @@ static void smc911x_phy_interrupt(struct net_device *dev)
 {
 	struct smc911x_local *lp = netdev_priv(dev);
 	int phyaddr = lp->mii.phy_id;
-	int status;
+	int __maybe_unused status;
 
 	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 

@@ -1248,7 +1248,7 @@ static void smc911x_poll_controller(struct net_device *dev)
 static void smc911x_timeout(struct net_device *dev, unsigned int txqueue)
 {
 	struct smc911x_local *lp = netdev_priv(dev);
-	int status, mask;
+	int __maybe_unused status, mask;
 	unsigned long flags;
 
 	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);

-- 
2.25.1