linux-kernel - [PATCH 1/4] drm/virtio: simplify virtio_gpu_alloc

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Date:   Wed,  5 Feb 2020 11:59:52 +0100
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     gurchetansingh@...omium.org, olvaffe@...il.com,
        Gerd Hoffmann <kraxel@...hat.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        virtualization@...ts.linux-foundation.org (open list:VIRTIO GPU DRIVER),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 1/4] drm/virtio: simplify virtio_gpu_alloc_cmd

Just call virtio_gpu_alloc_cmd_resp with some fixed args
instead of duplicating most of the function body.

Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 5914e79d3429..6d6d55dc384e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -109,23 +109,6 @@ virtio_gpu_get_vbuf(struct virtio_gpu_device *vgdev,
 	return vbuf;
 }
 
-static void *virtio_gpu_alloc_cmd(struct virtio_gpu_device *vgdev,
-				  struct virtio_gpu_vbuffer **vbuffer_p,
-				  int size)
-{
-	struct virtio_gpu_vbuffer *vbuf;
-
-	vbuf = virtio_gpu_get_vbuf(vgdev, size,
-				   sizeof(struct virtio_gpu_ctrl_hdr),
-				   NULL, NULL);
-	if (IS_ERR(vbuf)) {
-		*vbuffer_p = NULL;
-		return ERR_CAST(vbuf);
-	}
-	*vbuffer_p = vbuf;
-	return vbuf->buf;
-}
-
 static struct virtio_gpu_update_cursor*
 virtio_gpu_alloc_cursor(struct virtio_gpu_device *vgdev,
 			struct virtio_gpu_vbuffer **vbuffer_p)
@@ -161,6 +144,14 @@ static void *virtio_gpu_alloc_cmd_resp(struct virtio_gpu_device *vgdev,
 	return (struct virtio_gpu_command *)vbuf->buf;
 }
 
+static void *virtio_gpu_alloc_cmd(struct virtio_gpu_device *vgdev,
+				  struct virtio_gpu_vbuffer **vbuffer_p,
+				  int size)
+{
+	return virtio_gpu_alloc_cmd_resp(vgdev, NULL, vbuffer_p, size,
+					 sizeof(struct virtio_gpu_ctrl_hdr), NULL);
+}
+
 static void free_vbuf(struct virtio_gpu_device *vgdev,
 		      struct virtio_gpu_vbuffer *vbuf)
 {
-- 
2.18.1