linux-kernel - [PATCH -next] drm/qxl: remove set but not used variable 'map'

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Date:   Sat, 10 Nov 2018 03:44:46 +0000
From:   YueHaibing <yuehaibing@...wei.com>
To:     Dave Airlie <airlied@...hat.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        "David Airlie" <airlied@...ux.ie>
CC:     YueHaibing <yuehaibing@...wei.com>,
        <virtualization@...ts.linux-foundation.org>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: [PATCH -next] drm/qxl: remove set but not used variable 'map'

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

drivers/gpu/drm/qxl/qxl_object.c: In function 'qxl_bo_kunmap_atomic_page':
drivers/gpu/drm/qxl/qxl_object.c:189:21: warning:
 variable 'map' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/gpu/drm/qxl/qxl_object.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index f67a3c5..b1706cb 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -186,13 +186,9 @@ void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
 			       struct qxl_bo *bo, void *pmap)
 {
 	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
-	struct io_mapping *map;
 
-	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
-		map = qdev->vram_mapping;
-	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV)
-		map = qdev->surface_mapping;
-	else
+	if ((bo->tbo.mem.mem_type != TTM_PL_VRAM) &&
+	    (bo->tbo.mem.mem_type != TTM_PL_PRIV))
 		goto fallback;
 
 	io_mapping_unmap_atomic(pmap);
@@ -200,7 +196,7 @@ void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
 	(void) ttm_mem_io_lock(man, false);
 	ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem);
 	ttm_mem_io_unlock(man);
-	return ;
+	return;
  fallback:
 	qxl_bo_kunmap(bo);
 }