From 5b320b53431eb3396b1f16935f59bdcb88ccc7e8 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Tue, 10 Nov 2020 04:02:42 +0100 Subject: [PATCH] drivers: net: smc91x: Fix set but unused W=1 warning MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit drivers/net/ethernet/smsc/smc91x.c:706:51: warning: variable ‘pkt_len’ set but not used [-Wunused-but-set-variable] 706 | unsigned int saved_packet, packet_no, tx_status, pkt_len; The read of the packet length in the descriptor probably needs to be kept in order to keep the hardware happy. So tell the compiler we don't expect to use the value by using the __always_unused attribute. Signed-off-by: Andrew Lunn Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/smsc/smc91x.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index f6b73afd1879a..c8dabeaab4fca 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -703,7 +703,8 @@ static void smc_tx(struct net_device *dev) { struct smc_local *lp = netdev_priv(dev); void __iomem *ioaddr = lp->base; - unsigned int saved_packet, packet_no, tx_status, pkt_len; + unsigned int saved_packet, packet_no, tx_status; + unsigned int pkt_len __always_unused; DBG(3, dev, "%s\n", __func__); -- 2.30.2