linux-kernel - [PATCH v2 -next] drm/virtio: remove set but not used variable 'vgdev'

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Date:   Mon, 25 Mar 2019 09:26:31 +0000
From:   YueHaibing <yuehaibing@...wei.com>
To:     David Airlie <airlied@...ux.ie>, Gerd Hoffmann <kraxel@...hat.com>,
        "Daniel Vetter" <daniel@...ll.ch>
CC:     YueHaibing <yuehaibing@...wei.com>,
        <dri-devel@...ts.freedesktop.org>,
        <virtualization@...ts.linux-foundation.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH v2 -next] drm/virtio: remove set but not used variable 'vgdev'

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

drivers/gpu/drm/virtio/virtgpu_ttm.c: In function 'virtio_gpu_init_mem_type':
drivers/gpu/drm/virtio/virtgpu_ttm.c:117:28: warning:
 variable 'vgdev' set but not used [-Wunused-but-set-variable]

drivers/gpu/drm/virtio/virtgpu_ttm.c: In function 'virtio_gpu_bo_swap_notify':
drivers/gpu/drm/virtio/virtgpu_ttm.c:300:28: warning:
 variable 'vgdev' set but not used [-Wunused-but-set-variable]

It is never used since introduction in dc5698e80cf7 ("Add virtio gpu driver.")

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
v2: fix patch prefix
---
 drivers/gpu/drm/virtio/virtgpu_ttm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index d6225ba20b30..eb007c2569d8 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -114,10 +114,6 @@ static const struct ttm_mem_type_manager_func virtio_gpu_bo_manager_func = {
 static int virtio_gpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 				    struct ttm_mem_type_manager *man)
 {
-	struct virtio_gpu_device *vgdev;
-
-	vgdev = virtio_gpu_get_vgdev(bdev);
-
 	switch (type) {
 	case TTM_PL_SYSTEM:
 		/* System memory */
@@ -297,10 +293,8 @@ static void virtio_gpu_bo_move_notify(struct ttm_buffer_object *tbo,
 static void virtio_gpu_bo_swap_notify(struct ttm_buffer_object *tbo)
 {
 	struct virtio_gpu_object *bo;
-	struct virtio_gpu_device *vgdev;
 
 	bo = container_of(tbo, struct virtio_gpu_object, tbo);
-	vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private;
 
 	if (bo->pages)
 		virtio_gpu_object_free_sg_table(bo);