linux-kernel - linux-next: build failure after merge of the drm tree

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Date:   Fri, 26 Apr 2019 12:17:35 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Dave Airlie <airlied@...ux.ie>,
        DRI <dri-devel@...ts.freedesktop.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Marc-André Lureau <marcandre.lureau@...hat.com>,
        Noralf Trønnes <noralf@...nnes.org>
Subject: linux-next: build failure after merge of the drm tree

Hi all,

After merging the drm tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

drivers/gpu/drm/virtio/virtgpu_prime.c:43:18: error: redefinition of 'virtgpu_gem_prime_get_sg_table'
 struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/virtio/virtgpu_prime.c:31:18: note: previous definition of 'virtgpu_gem_prime_get_sg_table' was here
 struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Caused by a bad automaic merge between commit

  a0cecc23cfcb ("Revert "drm/virtio: drop prime import/export callbacks"")

from Linus' tree and commit

  98f41dc3b3ee ("drm/virtio: implement prime export")

from the drm tree.

I dropped the version of this function from the drm-fixes tree:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Fri, 26 Apr 2019 12:13:26 +1000
Subject: [PATCH] drm/virtio: fix up bad merge of virtgpu_gem_prime_get_sg_table

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/gpu/drm/virtio/virtgpu_prime.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c
index 0f670fc6c954..8fbf71bd0c5e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_prime.c
+++ b/drivers/gpu/drm/virtio/virtgpu_prime.c
@@ -40,11 +40,6 @@ struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
 				     bo->tbo.ttm->num_pages);
 }
 
-struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
-{
-	return ERR_PTR(-ENODEV);
-}
-
 struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
 	struct drm_device *dev, struct dma_buf_attachment *attach,
 	struct sg_table *table)
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell

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