linux-kernel - [PATCH 4.4 50/58] drm/virtio: fix framebuffer sparse warning

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Message-Id: <20170809194148.459873420@linuxfoundation.org>
Date:   Wed,  9 Aug 2017 12:42:02 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.4 50/58] drm/virtio: fix framebuffer sparse warning

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Gerd Hoffmann <kraxel@...hat.com>


[ Upstream commit 71d3f6ef7f5af38dea2975ec5715c88bae92e92d ]

virtio uses normal ram as backing storage for the framebuffer, so we
should assign the address to new screen_buffer (added by commit
17a7b0b4d9749f80d365d7baff5dec2f54b0e992) instead of screen_base.

Reported-by: Michael S. Tsirkin <mst@...hat.com>
Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/virtio/virtgpu_fb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/virtio/virtgpu_fb.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fb.c
@@ -338,7 +338,7 @@ static int virtio_gpufb_create(struct dr
 	info->fbops = &virtio_gpufb_ops;
 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
 
-	info->screen_base = obj->vmap;
+	info->screen_buffer = obj->vmap;
 	info->screen_size = obj->gem_base.size;
 	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &vfbdev->helper,