linux-kernel - [PATCH v2 net-next] liquidio: remove set but not used variable 'is25G'

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Date:   Mon, 13 Aug 2018 17:29:36 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <davem@...emloft.net>, <derek.chickles@...iumnetworks.com>,
        <satananda.burla@...iumnetworks.com>,
        <felix.manlunas@...iumnetworks.com>,
        <raghu.vatsavayi@...iumnetworks.com>
CC:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH v2 net-next] liquidio: remove set but not used variable 'is25G'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/cavium/liquidio/lio_ethtool.c: In function 'lio_set_link_ksettings':
drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:392:6: warning:
 variable 'is25G' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
v2: remove unnecessary braces as Shahed suggested
---
 drivers/net/ethernet/cavium/liquidio/lio_ethtool.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
index 807ea2c..8e05afd 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
@@ -389,18 +389,14 @@ static int lio_set_link_ksettings(struct net_device *netdev,
 	struct lio *lio = GET_LIO(netdev);
 	struct oct_link_info *linfo;
 	struct octeon_device *oct;
-	u32 is25G = 0;
 
 	oct = lio->oct_dev;
 
 	linfo = &lio->linfo;
 
-	if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
-	    oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
-		is25G = 1;
-	} else {
+	if (!(oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
+	      oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID))
 		return -EOPNOTSUPP;
-	}
 
 	if (oct->no_speed_setting) {
 		dev_err(&oct->pci_dev->dev, "%s: Changing speed is not supported\n",
-- 
2.7.0