On 05/08/2018 04:07 AM, Stephen Rothwell wrote:
Hi all,
After merging the drm-intel tree, today's linux-next build (x86_64
allmodconfig) failed like this:
drivers/gpu/drm/xen/xen_drm_front.c: In function 'xen_drv_probe':
drivers/gpu/drm/xen/xen_drm_front.c:740:10: error: 'struct bus_type' has no member named 'force_dma'
dev->bus->force_dma = true;
^~
drivers/gpu/drm/xen/xen_drm_front.c:742:8: error: too few arguments to function 'of_dma_configure'
ret = of_dma_configure(dev, NULL);
^~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/xen/xen_drm_front.c:16:0:
include/linux/of_device.h:58:5: note: declared here
int of_dma_configure(struct device *dev,
^~~~~~~~~~~~~~~~
Caused by commit
c575b7eeb89f ("drm/xen-front: Add support for Xen PV display frontend")
interacting with commit
3d6ce86ee794 ("drivers: remove force dma flag from buses")
from the dma-mapping tree.
I have added the following merge fix patch:
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Tue, 8 May 2018 11:02:24 +1000
Subject: [PATCH] drm/xen-front: merge fix for "drivers: remove force dma flag from buses"
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Thank you,
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
---
drivers/gpu/drm/xen/xen_drm_front.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 1b0ea9ac330e..0e486cb1c10c 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -737,9 +737,8 @@ static int xen_drv_probe(struct xenbus_device *xb_dev,
* is not correct: to fix this call of_dma_configure() with a NULL
* node to set default DMA ops.
*/
- dev->bus->force_dma = true;
dev->coherent_dma_mask = DMA_BIT_MASK(32);
- ret = of_dma_configure(dev, NULL);
+ ret = of_dma_configure(dev, NULL, true);
if (ret < 0) {
DRM_ERROR("Cannot setup DMA ops, ret %d", ret);
return ret;
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