linux-kernel - [PATCH net-next] net: neterion: Remove set but not used variable

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Date:   Sat, 19 Sep 2020 15:40:47 +0800
From:   Zheng Yongjun <zhengyongjun3@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Zheng Yongjun <zhengyongjun3@...wei.com>
Subject: [PATCH net-next] net: neterion: Remove set but not used variable

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

drivers/net/ethernet/neterion/vxge/vxge-traffic.c: In function vxge_hw_vpath_intr_disable:
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:160:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/neterion/vxge/vxge-traffic.c: In function vxge_hw_vpath_intr_enable:
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:33:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/neterion/vxge/vxge-traffic.c: In function vxge_hw_device_flush_io:
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:490:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/neterion/vxge/vxge-traffic.c: In function vxge_hw_vpath_poll_rx:
drivers/net/ethernet/neterion/vxge/vxge-traffic.c:2378:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable]

these variable is never used, so remove it.

Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
---
 .../net/ethernet/neterion/vxge/vxge-traffic.c    | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
index 709d20d9938f..03793e6c4a05 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
@@ -30,8 +30,6 @@
  */
 enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp)
 {
-	u64 val64;
-
 	struct __vxge_hw_virtualpath *vpath;
 	struct vxge_hw_vpath_reg __iomem *vp_reg;
 	enum vxge_hw_status status = VXGE_HW_OK;
@@ -84,7 +82,7 @@ enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp)
 	__vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL,
 			&vp_reg->xgmac_vp_int_status);
 
-	val64 = readq(&vp_reg->vpath_general_int_status);
+	readq(&vp_reg->vpath_general_int_status);
 
 	/* Mask unwanted interrupts */
 
@@ -157,8 +155,6 @@ enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp)
 enum vxge_hw_status vxge_hw_vpath_intr_disable(
 			struct __vxge_hw_vpath_handle *vp)
 {
-	u64 val64;
-
 	struct __vxge_hw_virtualpath *vpath;
 	enum vxge_hw_status status = VXGE_HW_OK;
 	struct vxge_hw_vpath_reg __iomem *vp_reg;
@@ -179,7 +175,7 @@ enum vxge_hw_status vxge_hw_vpath_intr_disable(
 		(u32)VXGE_HW_INTR_MASK_ALL,
 		&vp_reg->vpath_general_int_mask);
 
-	val64 = VXGE_HW_TIM_CLR_INT_EN_VP(1 << (16 - vpath->vp_id));
+	VXGE_HW_TIM_CLR_INT_EN_VP(1 << (16 - vpath->vp_id));
 
 	writeq(VXGE_HW_INTR_MASK_ALL, &vp_reg->kdfcctl_errors_mask);
 
@@ -487,9 +483,7 @@ void vxge_hw_device_unmask_all(struct __vxge_hw_device *hldev)
  */
 void vxge_hw_device_flush_io(struct __vxge_hw_device *hldev)
 {
-	u32 val32;
-
-	val32 = readl(&hldev->common_reg->titan_general_int_status);
+	readl(&hldev->common_reg->titan_general_int_status);
 }
 
 /**
@@ -2375,7 +2369,6 @@ enum vxge_hw_status vxge_hw_vpath_poll_rx(struct __vxge_hw_ring *ring)
 	u8 t_code;
 	enum vxge_hw_status status = VXGE_HW_OK;
 	void *first_rxdh;
-	u64 val64 = 0;
 	int new_count = 0;
 
 	ring->cmpl_cnt = 0;
@@ -2403,8 +2396,7 @@ enum vxge_hw_status vxge_hw_vpath_poll_rx(struct __vxge_hw_ring *ring)
 			}
 			writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(new_count),
 				&ring->vp_reg->prc_rxd_doorbell);
-			val64 =
-			  readl(&ring->common_reg->titan_general_int_status);
+			readl(&ring->common_reg->titan_general_int_status);
 			ring->doorbell_cnt = 0;
 		}
 	}
-- 
2.17.1