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

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Date:   Mon, 30 Jul 2018 15:12:13 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Juergen Gross <jgross@...e.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Xen Devel <Xen-devel@...ts.xensource.com>,
        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>,
        Christian König <christian.koenig@....com>,
        Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
Subject: linux-next: build failure after merge of the xen-tip tree

Hi all,

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

drivers/xen/gntdev-dmabuf.c:360:12: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .attach = dmabuf_exp_ops_attach,
            ^~~~~~~~~~~~~~~~~~~~~

Caused by commit

  a240d6e42e28 ("xen/gntdev: Implement dma-buf export functionality")

interacting with commit

  a19741e5e5a9 ("dma_buf: remove device parameter from attach callback v2")

from the drm tree.

I have added the following merge fix patch:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 30 Jul 2018 15:08:21 +1000
Subject: [PATCH] xen/gntdev: fix up for attach callback API change

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/xen/gntdev-dmabuf.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/xen/gntdev-dmabuf.c b/drivers/xen/gntdev-dmabuf.c
index faaa4d3970ea..744cfe9b0311 100644
--- a/drivers/xen/gntdev-dmabuf.c
+++ b/drivers/xen/gntdev-dmabuf.c
@@ -217,7 +217,6 @@ dmabuf_pages_to_sgt(struct page **pages, unsigned int nr_pages)
 }
 
 static int dmabuf_exp_ops_attach(struct dma_buf *dma_buf,
-				 struct device *target_dev,
 				 struct dma_buf_attachment *attach)
 {
 	struct gntdev_dmabuf_attachment *gntdev_dmabuf_attach;
-- 
2.18.0

-- 
Cheers,
Stephen Rothwell

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