linux-next: build failure after merge of the drm-intel tree
diff mbox

Message ID 20180508110716.53dfef41@canb.auug.org.au
State New
Headers show

Commit Message

Stephen Rothwell May 8, 2018, 1:07 a.m. UTC
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@canb.auug.org.au>
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@canb.auug.org.au>
---
 drivers/gpu/drm/xen/xen_drm_front.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Oleksandr Andrushchenko May 8, 2018, 7:08 a.m. UTC | #1
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@canb.auug.org.au>
> 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@canb.auug.org.au>
Thank you,
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> ---
>   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;
>
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
Stephen Rothwell May 9, 2018, 5:02 a.m. UTC | #2
Hi all,

On Tue, 8 May 2018 11:07:16 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> 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@canb.auug.org.au>
> 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@canb.auug.org.au>
> ---
>  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;
> -- 
> 2.17.0

This is now needed for the merge of the drm and dma-mapping trees.
Christoph Hellwig May 9, 2018, 5:08 a.m. UTC | #3
On Wed, May 09, 2018 at 03:02:55PM +1000, Stephen Rothwell wrote:
> > -	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;
> > -- 
> > 2.17.0
> 
> This is now needed for the merge of the drm and dma-mapping trees.

FYI, because the dma_configure change touch so much code and the author
wants to base more work on it it actually is in a guranteed stable
branch with just those patches:

    git://git.infradead.org/users/hch/dma-mapping.git dma-configure

Gitweb:

    http://git.infradead.org/users/hch/dma-mapping.git/shortlog/refs/heads/dma-configure
  
Feel free to pull this into the drm tree.
Stephen Rothwell May 9, 2018, 5:18 a.m. UTC | #4
Hi Christoph,

On Wed, 9 May 2018 07:08:55 +0200 Christoph Hellwig <hch@lst.de> wrote:
>
> FYI, because the dma_configure change touch so much code and the author
> wants to base more work on it it actually is in a guranteed stable
> branch with just those patches:
> 
>     git://git.infradead.org/users/hch/dma-mapping.git dma-configure
> 
> Gitweb:
> 
>     http://git.infradead.org/users/hch/dma-mapping.git/shortlog/refs/heads/dma-configure
>   
> Feel free to pull this into the drm tree.

Thanks for that.

Patch
diff mbox

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;