[Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

Today's linux-next merge of the drm-misc tree got a conflict in:he drm-misc tree with the drm-misc-fixes tree

  drivers/gpu/drm/tidss/tidss_encoder.c

between commit:

  9da67433f64e ("drm/tidss: fix crash related to accessing freed memory")

from the drm-misc-fixes tree and commit:

  b28ad7deb2f2 ("drm/tidss: Use simple encoder")

from the drm-misc tree.

I fixed it up (I just used the latter version of this file) and can
carry the fix as necessary. This is now fixed as far as linux-next is
concerned, but any non trivial conflicts should be mentioned to your
upstream maintainer when your tree is submitted for merging.  You may
also want to consider cooperating with the maintainer of the conflicting
tree to minimise any particularly complex conflicts.

-- 
Cheers,
Stephen Rothwell

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Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Tomi Valkeinen]

Hi,

On 21/04/2020 04:52, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the drm-misc tree got a conflict in:he drm-misc tree with the drm-misc-fixes tree
> 
>    drivers/gpu/drm/tidss/tidss_encoder.c
> 
> between commit:
> 
>    9da67433f64e ("drm/tidss: fix crash related to accessing freed memory")
> 
> from the drm-misc-fixes tree and commit:
> 
>    b28ad7deb2f2 ("drm/tidss: Use simple encoder")
> 
> from the drm-misc tree.
> 
> I fixed it up (I just used the latter version of this file) and can

We need to use "drm/tidss: fix crash related to accessing freed memory" version.

> carry the fix as necessary. This is now fixed as far as linux-next is
> concerned, but any non trivial conflicts should be mentioned to your
> upstream maintainer when your tree is submitted for merging.  You may
> also want to consider cooperating with the maintainer of the conflicting
> tree to minimise any particularly complex conflicts.

I have fixed this with drm-misc's dim tool, so I presume the conflict goes away when drm-misc-fixes 
is merged to drm-fixes, and drm-fixes is then at some point merged to drm-misc-next.

It was a bit bad timing with the "drm/tidss: Use simple encoder", which removes the plumbing I 
needed to implement the fix. So I effectively revert the "drm/tidss: Use simple encoder".

  Tomi

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Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

On Tue, 21 Apr 2020 09:10:25 +0300 Tomi Valkeinen <tomi.valkeinen@ti.com> wrote:
>
> On 21/04/2020 04:52, Stephen Rothwell wrote:
> > 
> > Today's linux-next merge of the drm-misc tree got a conflict in:he drm-misc tree with the drm-misc-fixes tree
> > 
> >    drivers/gpu/drm/tidss/tidss_encoder.c
> > 
> > between commit:
> > 
> >    9da67433f64e ("drm/tidss: fix crash related to accessing freed memory")
> > 
> > from the drm-misc-fixes tree and commit:
> > 
> >    b28ad7deb2f2 ("drm/tidss: Use simple encoder")
> > 
> > from the drm-misc tree.
> > 
> > I fixed it up (I just used the latter version of this file) and can  
> 
> We need to use "drm/tidss: fix crash related to accessing freed memory" version.
> 
> > carry the fix as necessary. This is now fixed as far as linux-next is
> > concerned, but any non trivial conflicts should be mentioned to your
> > upstream maintainer when your tree is submitted for merging.  You may
> > also want to consider cooperating with the maintainer of the conflicting
> > tree to minimise any particularly complex conflicts.  
> 
> I have fixed this with drm-misc's dim tool, so I presume the conflict goes away when drm-misc-fixes 
> is merged to drm-fixes, and drm-fixes is then at some point merged to drm-misc-next.
> 
> It was a bit bad timing with the "drm/tidss: Use simple encoder", which removes the plumbing I 
> needed to implement the fix. So I effectively revert the "drm/tidss: Use simple encoder".
> 
>   Tomi
> 

This is now a conflict between the drm and drm-misc-fixes trees.

-- 
Cheers,
Stephen Rothwell

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Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Tomi Valkeinen]

Hi Stephen,

On 23/04/2020 06:17, Stephen Rothwell wrote:
> Hi all,
> 
> On Tue, 21 Apr 2020 09:10:25 +0300 Tomi Valkeinen <tomi.valkeinen@ti.com> wrote:
>>
>> On 21/04/2020 04:52, Stephen Rothwell wrote:
>>>
>>> Today's linux-next merge of the drm-misc tree got a conflict in:he drm-misc tree with the drm-misc-fixes tree
>>>
>>>     drivers/gpu/drm/tidss/tidss_encoder.c
>>>
>>> between commit:
>>>
>>>     9da67433f64e ("drm/tidss: fix crash related to accessing freed memory")
>>>
>>> from the drm-misc-fixes tree and commit:
>>>
>>>     b28ad7deb2f2 ("drm/tidss: Use simple encoder")
>>>
>>> from the drm-misc tree.
>>>
>>> I fixed it up (I just used the latter version of this file) and can
>>
>> We need to use "drm/tidss: fix crash related to accessing freed memory" version.
>>
>>> carry the fix as necessary. This is now fixed as far as linux-next is
>>> concerned, but any non trivial conflicts should be mentioned to your
>>> upstream maintainer when your tree is submitted for merging.  You may
>>> also want to consider cooperating with the maintainer of the conflicting
>>> tree to minimise any particularly complex conflicts.
>>
>> I have fixed this with drm-misc's dim tool, so I presume the conflict goes away when drm-misc-fixes
>> is merged to drm-fixes, and drm-fixes is then at some point merged to drm-misc-next.
>>
>> It was a bit bad timing with the "drm/tidss: Use simple encoder", which removes the plumbing I
>> needed to implement the fix. So I effectively revert the "drm/tidss: Use simple encoder".
>>
>>    Tomi
>>
> 
> This is now a conflict between the drm and drm-misc-fixes trees.

The fix ("drm/tidss: fix crash related to accessing freed memory") is in v5.7-rc3, and the conflicting change ("drm/tidss: Use simple encoder") in drm-next.

The conflict resolution in linux-next drops the fix and take the change from drm-next, which causes crash on module removal.

Here's the diff I made on top of linux-next to fix it. Essentially dropping the simple-encoder change, and reapplying the fix. This should be fixed in drm-next when Dave next time pulls in Linus' branch.

diff --git a/drivers/gpu/drm/tidss/tidss_encoder.c b/drivers/gpu/drm/tidss/tidss_encoder.c
index 4c0558286f5e..e624cdcbb567 100644
--- a/drivers/gpu/drm/tidss/tidss_encoder.c
+++ b/drivers/gpu/drm/tidss/tidss_encoder.c
@@ -56,25 +56,38 @@ static int tidss_encoder_atomic_check(struct drm_encoder *encoder,
 	return 0;
 }
 
+static void tidss_encoder_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+	kfree(encoder);
+}
+
 static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
 	.atomic_check = tidss_encoder_atomic_check,
 };
 
+static const struct drm_encoder_funcs encoder_funcs = {
+	.destroy = tidss_encoder_destroy,
+};
+
 struct drm_encoder *tidss_encoder_create(struct tidss_device *tidss,
 					 u32 encoder_type, u32 possible_crtcs)
 {
 	struct drm_encoder *enc;
 	int ret;
 
-	enc = devm_kzalloc(tidss->dev, sizeof(*enc), GFP_KERNEL);
+	enc = kzalloc(sizeof(*enc), GFP_KERNEL);
 	if (!enc)
 		return ERR_PTR(-ENOMEM);
 
 	enc->possible_crtcs = possible_crtcs;
 
-	ret = drm_simple_encoder_init(&tidss->ddev, enc, encoder_type);
-	if (ret < 0)
+	ret = drm_encoder_init(&tidss->ddev, enc, &encoder_funcs,
+			       encoder_type, NULL);
+	if (ret < 0) {
+		kfree(enc);
 		return ERR_PTR(ret);
+	}
 
 	drm_encoder_helper_add(enc, &encoder_helper_funcs);
 


 Tomi

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[Intel-gfx] ✗ Fi.CI.BAT: failure for linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Patchwork]

== Series Details ==

Series: linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree
URL   : https://patchwork.freedesktop.org/series/77305/
State : failure

== Summary ==

Applying: linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree
Using index info to reconstruct a base tree...
M	drivers/gpu/drm/tidss/tidss_encoder.c
Falling back to patching base and 3-way merge...
No changes -- Patch already applied.

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[Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

Today's linux-next merge of the drm-misc tree got a conflict in:

  drivers/gpu/drm/drm_gem.c

between commit:

  f49a51bfdc8e ("drm/shme-helpers: Fix dma_buf_mmap forwarding bug")

from the drm-misc-fixes tree and commit:

  d693def4fd1c ("drm: Remove obsolete GEM and PRIME callbacks from struct drm_driver")

from the drm-misc tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/gpu/drm/drm_gem.c
index 69c2c079d803,1da67d34e55d..000000000000
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@@ -1085,9 -1076,7 +1076,9 @@@ int drm_gem_mmap_obj(struct drm_gem_obj
  	 */
  	drm_gem_object_get(obj);
  
 +	vma->vm_private_data = obj;
 +
- 	if (obj->funcs && obj->funcs->mmap) {
+ 	if (obj->funcs->mmap) {
  		ret = obj->funcs->mmap(obj, vma);
  		if (ret) {
  			drm_gem_object_put(obj);

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[Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

Today's linux-next merge of the drm-misc tree got a conflict in:

  drivers/gpu/drm/radeon/radeon_sync.c

between commit:

  022074918042 ("drm/radeon: fix logic inversion in radeon_sync_resv")

from the drm-misc-fixes tree and commit:

  7bc80a5462c3 ("dma-buf: add enum dma_resv_usage v4")

from the drm-misc tree.

I fixed it up (I just used the latter version) and can carry the fix as
necessary. This is now fixed as far as linux-next is concerned, but any
non trivial conflicts should be mentioned to your upstream maintainer
when your tree is submitted for merging.  You may also want to consider
cooperating with the maintainer of the conflicting tree to minimise any
particularly complex conflicts.

-- 
Cheers,
Stephen Rothwell

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Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Christian König]

Am 14.04.22 um 01:47 schrieb Stephen Rothwell:
> Hi all,
>
> Today's linux-next merge of the drm-misc tree got a conflict in:
>
>    drivers/gpu/drm/radeon/radeon_sync.c
>
> between commit:
>
>    022074918042 ("drm/radeon: fix logic inversion in radeon_sync_resv")
>
> from the drm-misc-fixes tree and commit:
>
>    7bc80a5462c3 ("dma-buf: add enum dma_resv_usage v4")
>
> from the drm-misc tree.
>
> I fixed it up (I just used the latter version) and can carry the fix as
> necessary.

I still need to double check the result in linux-next, but that doesn't 
sounds right.

The missing "!" needs to be carried into the new function call.

drm-tip should have the right solution to this merge conflict.

Thanks,
Christian.

> This is now fixed as far as linux-next is concerned, but any
> non trivial conflicts should be mentioned to your upstream maintainer
> when your tree is submitted for merging.  You may also want to consider
> cooperating with the maintainer of the conflicting tree to minimise any
> particularly complex conflicts.
>

Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

On Thu, 14 Apr 2022 09:47:15 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Today's linux-next merge of the drm-misc tree got a conflict in:
> 
>   drivers/gpu/drm/radeon/radeon_sync.c
> 
> between commit:
> 
>   022074918042 ("drm/radeon: fix logic inversion in radeon_sync_resv")
> 
> from the drm-misc-fixes tree and commit:
> 
>   7bc80a5462c3 ("dma-buf: add enum dma_resv_usage v4")
> 
> from the drm-misc tree.
> 
> I fixed it up (I just used the latter version) and can carry the fix as
> necessary. This is now fixed as far as linux-next is concerned, but any
> non trivial conflicts should be mentioned to your upstream maintainer
> when your tree is submitted for merging.  You may also want to consider
> cooperating with the maintainer of the conflicting tree to minimise any
> particularly complex conflicts.

This is now a conflict between the drm tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell

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[Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

Today's linux-next merge of the drm-misc tree got a conflict in:

  drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

between commit:

  eca13f3c67b6 ("drm/amdgpu: use the last IB as gang leader v2")

from the drm-misc-fixes tree and commit:

  1728baa7e4e6 ("drm/amdgpu: use scheduler dependencies for CS")

from the drm-misc tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index de5cb056c9ad,0528c2b1db6e..000000000000
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@@ -1197,10 -1201,7 +1203,10 @@@ static int amdgpu_cs_sync_rings(struct 
  	}
  
  	for (i = 0; i < p->gang_size; ++i) {
 +		if (p->jobs[i] == leader)
 +			continue;
 +
- 		r = amdgpu_sync_clone(&leader->sync, &p->jobs[i]->sync);
+ 		r = amdgpu_sync_push_to_job(&p->sync, p->jobs[i]);
  		if (r)
  			return r;
  	}
@@@ -1241,14 -1243,11 +1247,14 @@@ static int amdgpu_cs_submit(struct amdg
  	for (i = 0; i < p->gang_size; ++i)
  		drm_sched_job_arm(&p->jobs[i]->base);
  
 -	for (i = 0; i < (p->gang_size - 1); ++i) {
 +	for (i = 0; i < p->gang_size; ++i) {
  		struct dma_fence *fence;
  
 +		if (p->jobs[i] == leader)
 +			continue;
 +
  		fence = &p->jobs[i]->base.s_fence->scheduled;
- 		r = amdgpu_sync_fence(&leader->sync, fence);
+ 		r = drm_sched_job_add_dependency(&leader->base, fence);
  		if (r)
  			goto error_cleanup;
  	}

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Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

On Wed, 16 Nov 2022 10:47:52 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> 
> Today's linux-next merge of the drm-misc tree got a conflict in:
> 
>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> 
> between commit:
> 
>   eca13f3c67b6 ("drm/amdgpu: use the last IB as gang leader v2")
> 
> from the drm-misc-fixes tree and commit:
> 
>   1728baa7e4e6 ("drm/amdgpu: use scheduler dependencies for CS")
> 
> from the drm-misc tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index de5cb056c9ad,0528c2b1db6e..000000000000
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@@ -1197,10 -1201,7 +1203,10 @@@ static int amdgpu_cs_sync_rings(struct 
>   	}
>   
>   	for (i = 0; i < p->gang_size; ++i) {
>  +		if (p->jobs[i] == leader)
>  +			continue;
>  +
> - 		r = amdgpu_sync_clone(&leader->sync, &p->jobs[i]->sync);
> + 		r = amdgpu_sync_push_to_job(&p->sync, p->jobs[i]);
>   		if (r)
>   			return r;
>   	}
> @@@ -1241,14 -1243,11 +1247,14 @@@ static int amdgpu_cs_submit(struct amdg
>   	for (i = 0; i < p->gang_size; ++i)
>   		drm_sched_job_arm(&p->jobs[i]->base);
>   
>  -	for (i = 0; i < (p->gang_size - 1); ++i) {
>  +	for (i = 0; i < p->gang_size; ++i) {
>   		struct dma_fence *fence;
>   
>  +		if (p->jobs[i] == leader)
>  +			continue;
>  +
>   		fence = &p->jobs[i]->base.s_fence->scheduled;
> - 		r = amdgpu_sync_fence(&leader->sync, fence);
> + 		r = drm_sched_job_add_dependency(&leader->base, fence);
>   		if (r)
>   			goto error_cleanup;
>   	}

Note that I had to keep the declaration of "leader" in amdgpu_cs_sync_rings().

-- 
Cheers,
Stephen Rothwell

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Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Christian König]

Am 16.11.22 um 01:25 schrieb Stephen Rothwell:
> Hi all,
>
> On Wed, 16 Nov 2022 10:47:52 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>> Today's linux-next merge of the drm-misc tree got a conflict in:
>>
>>    drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>
>> between commit:
>>
>>    eca13f3c67b6 ("drm/amdgpu: use the last IB as gang leader v2")
>>
>> from the drm-misc-fixes tree and commit:
>>
>>    1728baa7e4e6 ("drm/amdgpu: use scheduler dependencies for CS")
>>
>> from the drm-misc tree.
>>
>> I fixed it up (see below) and can carry the fix as necessary. This
>> is now fixed as far as linux-next is concerned, but any non trivial
>> conflicts should be mentioned to your upstream maintainer when your tree
>> is submitted for merging.  You may also want to consider cooperating
>> with the maintainer of the conflicting tree to minimise any particularly
>> complex conflicts.
>>
>> -- 
>> Cheers,
>> Stephen Rothwell
>>
>> diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> index de5cb056c9ad,0528c2b1db6e..000000000000
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> @@@ -1197,10 -1201,7 +1203,10 @@@ static int amdgpu_cs_sync_rings(struct
>>    	}
>>    
>>    	for (i = 0; i < p->gang_size; ++i) {
>>   +		if (p->jobs[i] == leader)
>>   +			continue;
>>   +
>> - 		r = amdgpu_sync_clone(&leader->sync, &p->jobs[i]->sync);
>> + 		r = amdgpu_sync_push_to_job(&p->sync, p->jobs[i]);
>>    		if (r)
>>    			return r;
>>    	}
>> @@@ -1241,14 -1243,11 +1247,14 @@@ static int amdgpu_cs_submit(struct amdg
>>    	for (i = 0; i < p->gang_size; ++i)
>>    		drm_sched_job_arm(&p->jobs[i]->base);
>>    
>>   -	for (i = 0; i < (p->gang_size - 1); ++i) {
>>   +	for (i = 0; i < p->gang_size; ++i) {
>>    		struct dma_fence *fence;
>>    
>>   +		if (p->jobs[i] == leader)
>>   +			continue;
>>   +
>>    		fence = &p->jobs[i]->base.s_fence->scheduled;
>> - 		r = amdgpu_sync_fence(&leader->sync, fence);
>> + 		r = drm_sched_job_add_dependency(&leader->base, fence);
>>    		if (r)
>>    			goto error_cleanup;
>>    	}
> Note that I had to keep the declaration of "leader" in amdgpu_cs_sync_rings().

This and all your other merge resolutions look good to me.

And sorry for the noise, drm-tip somehow doesn't seem to work any more 
and we had a lot of conflicting patches going in through -fixes and -next.

Regards,
Christian.

>

[Intel-gfx] linux-next: manual merge of the drm-misc tree with the drm-misc-fixes tree

[Stephen Rothwell]

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Hi all,

Today's linux-next merge of the drm-misc tree got a conflict in:

  drivers/gpu/drm/drm_fbdev_generic.c

between commits:

  cc88ad784e42 ("drm/fb-helper: Check fb_deferred_io_init() return value")
  d6591da5f3ff ("drm/fb-helper: Use a per-driver FB deferred I/O handler")

from the drm-misc-fixes tree and commit:

  6ca80b9e5cc0 ("drm/fbdev-generic: Rename struct fb_info 'fbi' to 'info'")

from the drm-misc tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/gpu/drm/drm_fbdev_generic.c
index bd1f8f28297c,43f94aa9e015..000000000000
--- a/drivers/gpu/drm/drm_fbdev_generic.c
+++ b/drivers/gpu/drm/drm_fbdev_generic.c
@@@ -200,31 -189,25 +184,31 @@@ static int drm_fbdev_fb_probe(struct dr
  	fb_helper->fb = buffer->fb;
  	fb = buffer->fb;
  
- 	fbi = drm_fb_helper_alloc_info(fb_helper);
- 	if (IS_ERR(fbi))
- 		return PTR_ERR(fbi);
+ 	info = drm_fb_helper_alloc_info(fb_helper);
+ 	if (IS_ERR(info))
+ 		return PTR_ERR(info);
  
- 	fbi->fbops = &drm_fbdev_fb_ops;
- 	fbi->screen_size = sizes->surface_height * fb->pitches[0];
- 	fbi->fix.smem_len = fbi->screen_size;
- 	fbi->flags = FBINFO_DEFAULT;
+ 	info->fbops = &drm_fbdev_fb_ops;
+ 	info->screen_size = sizes->surface_height * fb->pitches[0];
+ 	info->fix.smem_len = info->screen_size;
+ 	info->flags = FBINFO_DEFAULT;
  
- 	drm_fb_helper_fill_info(fbi, fb_helper, sizes);
+ 	drm_fb_helper_fill_info(info, fb_helper, sizes);
  
  	if (drm_fbdev_use_shadow_fb(fb_helper)) {
- 		fbi->screen_buffer = vzalloc(fbi->screen_size);
- 		if (!fbi->screen_buffer)
+ 		info->screen_buffer = vzalloc(info->screen_size);
+ 		if (!info->screen_buffer)
  			return -ENOMEM;
- 		fbi->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
+ 		info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
  
 -		info->fbdefio = &drm_fbdev_defio;
 -		fb_deferred_io_init(info);
 +		/* Set a default deferred I/O handler */
 +		fb_helper->fbdefio.delay = HZ / 20;
 +		fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
 +
- 		fbi->fbdefio = &fb_helper->fbdefio;
- 		ret = fb_deferred_io_init(fbi);
++		info->fbdefio = &fb_helper->fbdefio;
++		ret = fb_deferred_io_init(info);
 +		if (ret)
 +			return ret;
  	} else {
  		/* buffer is mapped for HW framebuffer */
  		ret = drm_client_buffer_vmap(fb_helper->buffer, &map);

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