[PATCH net-next] net: cortina: Remove set but not used variable

[Zheng Yongjun]

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

drivers/net/ethernet/cortina/gemini.c: In function gmac_get_ringparam:
drivers/net/ethernet/cortina/gemini.c:2125:21: warning: variable ‘config0’ set 
but not used [-Wunused-but-set-variable]

drivers/net/ethernet/cortina/gemini.c: In function gmac_init:
drivers/net/ethernet/cortina/gemini.c:512:6: warning: variable ‘val’ set but 
not used [-Wunused-but-set-variable]

these variable is never used, so remove it.

Signed-off-by: Zheng Yongjun <zhengyongj...@huawei.com>
---
 drivers/net/ethernet/cortina/gemini.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/cortina/gemini.c 
b/drivers/net/ethernet/cortina/gemini.c
index ffec0f3dd957..1ca4da9909c3 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -509,7 +509,6 @@ static int gmac_init(struct net_device *netdev)
                .rel_threshold = 0,
        } };
        union gmac_config0 tmp;
-       u32 val;
 
        config0.bits.max_len = gmac_pick_rx_max_len(netdev->mtu);
        tmp.bits32 = readl(port->gmac_base + GMAC_CONFIG0);
@@ -519,7 +518,7 @@ static int gmac_init(struct net_device *netdev)
        writel(config2.bits32, port->gmac_base + GMAC_CONFIG2);
        writel(config3.bits32, port->gmac_base + GMAC_CONFIG3);
 
-       val = readl(port->dma_base + GMAC_AHB_WEIGHT_REG);
+       readl(port->dma_base + GMAC_AHB_WEIGHT_REG);
        writel(ahb_weight.bits32, port->dma_base + GMAC_AHB_WEIGHT_REG);
 
        writel(hw_weigh.bits32,
@@ -2122,9 +2121,8 @@ static void gmac_get_ringparam(struct net_device *netdev,
                               struct ethtool_ringparam *rp)
 {
        struct gemini_ethernet_port *port = netdev_priv(netdev);
-       union gmac_config0 config0;
 
-       config0.bits32 = readl(port->gmac_base + GMAC_CONFIG0);
+       readl(port->gmac_base + GMAC_CONFIG0);
 
        rp->rx_max_pending = 1 << 15;
        rp->rx_mini_max_pending = 0;
-- 
2.17.1