From 6015e6f2efc620fe0b43e92ddd620f2446ce82e8 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Tue, 10 Nov 2020 04:02:44 +0100 Subject: drivers: net: smc911x: Work around set but unused status MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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] 976 | int status; A comment indicates the status needs to be read from the PHY, otherwise bad things happen. But due to the macro magic, it is hard to perform the read without assigning it to a variable. So add _always_unused attribute to status to tell the compiler we don't expect to use the value. Signed-off-by: Andrew Lunn Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/smsc/smc911x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet/smsc/smc911x.c') diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 01069dfaf75c..8f748a0c057e 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 status __always_unused; 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 status __always_unused; DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__); -- cgit