* [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
@ 2024-12-11 10:15 jianqi.ren.cn
2024-12-11 16:33 ` Sasha Levin
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: jianqi.ren.cn @ 2024-12-11 10:15 UTC (permalink / raw)
To: wayne.lin, gregkh
Cc: patches, jerry.zuo, zaeem.mohamed, daniel.wheeler,
alexander.deucher, stable, harry.wentland, sunpeng.li,
Rodrigo.Siqueira, christian.koenig, airlied, daniel, Jerry.Zuo,
amd-gfx, dri-devel, linux-kernel
From: Wayne Lin <wayne.lin@amd.com>
[ Upstream commit fcf6a49d79923a234844b8efe830a61f3f0584e4 ]
[Why]
When unplug one of monitors connected after mst hub, encounter null pointer dereference.
It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When
commit new state which directly referring to info stored in dc_sink will cause null pointer
dereference.
[how]
Remove redundant checking condition. Relevant condition should already be covered by checking
if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected.
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 1acef5f3838f..a1619f4569cf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -183,6 +183,8 @@ amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
dc_sink_release(dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
+ aconnector->dsc_aux = NULL;
+ port->passthrough_aux = NULL;
}
aconnector->mst_status = MST_STATUS_DEFAULT;
@@ -487,6 +489,8 @@ dm_dp_mst_detect(struct drm_connector *connector,
dc_sink_release(aconnector->dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
+ aconnector->dsc_aux = NULL;
+ port->passthrough_aux = NULL;
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID | MST_ALLOCATE_NEW_PAYLOAD | MST_CLEAR_ALLOCATED_PAYLOAD,
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
2024-12-11 10:15 [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute jianqi.ren.cn
@ 2024-12-11 16:33 ` Sasha Levin
2024-12-12 12:11 ` Greg KH
2024-12-12 12:17 ` gregkh
2 siblings, 0 replies; 6+ messages in thread
From: Sasha Levin @ 2024-12-11 16:33 UTC (permalink / raw)
To: stable; +Cc: jianqi.ren.cn, Sasha Levin
[ Sasha's backport helper bot ]
Hi,
The upstream commit SHA1 provided is correct: fcf6a49d79923a234844b8efe830a61f3f0584e4
WARNING: Author mismatch between patch and upstream commit:
Backport author: <jianqi.ren.cn@windriver.com>
Commit author: Wayne Lin <wayne.lin@amd.com>
Status in newer kernel trees:
6.12.y | Present (exact SHA1)
6.6.y | Present (different SHA1: c7e65cab54a8)
6.1.y | Not found
Note: The patch differs from the upstream commit:
---
1: fcf6a49d79923 ! 1: bb340e15684fc drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
@@ Metadata
## Commit message ##
drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
+ [ Upstream commit fcf6a49d79923a234844b8efe830a61f3f0584e4 ]
+
[Why]
When unplug one of monitors connected after mst hub, encounter null pointer dereference.
@@ Commit message
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+ Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
## drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c ##
@@ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
@@ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: dm_dp_mst_detect(st
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID | MST_ALLOCATE_NEW_PAYLOAD | MST_CLEAR_ALLOCATED_PAYLOAD,
-@@ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: static bool is_dsc_need_re_compute(
- if (!aconnector || !aconnector->dsc_aux)
- continue;
-
-- /*
-- * check if cached virtual MST DSC caps are available and DSC is supported
-- * as per specifications in their Virtual DPCD registers.
-- */
-- if (!(aconnector->dc_sink->dsc_caps.dsc_dec_caps.is_dsc_supported ||
-- aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_PASSTHROUGH_SUPPORT))
-- continue;
--
- stream_on_link[new_stream_on_link_num] = aconnector;
- new_stream_on_link_num++;
-
---
Results of testing on various branches:
| Branch | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.1.y | Success | Success |
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
2024-12-11 10:15 [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute jianqi.ren.cn
2024-12-11 16:33 ` Sasha Levin
@ 2024-12-12 12:11 ` Greg KH
2024-12-12 12:17 ` gregkh
2 siblings, 0 replies; 6+ messages in thread
From: Greg KH @ 2024-12-12 12:11 UTC (permalink / raw)
To: jianqi.ren.cn
Cc: wayne.lin, patches, jerry.zuo, zaeem.mohamed, daniel.wheeler,
alexander.deucher, stable, harry.wentland, sunpeng.li,
Rodrigo.Siqueira, christian.koenig, airlied, daniel, amd-gfx,
dri-devel, linux-kernel
On Wed, Dec 11, 2024 at 06:15:44PM +0800, jianqi.ren.cn@windriver.com wrote:
> From: Wayne Lin <wayne.lin@amd.com>
>
> [ Upstream commit fcf6a49d79923a234844b8efe830a61f3f0584e4 ]
>
> [Why]
> When unplug one of monitors connected after mst hub, encounter null pointer dereference.
>
> It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When
> commit new state which directly referring to info stored in dc_sink will cause null pointer
> dereference.
>
> [how]
> Remove redundant checking condition. Relevant condition should already be covered by checking
> if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected.
>
> Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
> Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
> Signed-off-by: Wayne Lin <wayne.lin@amd.com>
> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 ++++
> 1 file changed, 4 insertions(+)
You sent this 3 times, all different, so I have no idea what to do.
Ok, I give up. I'm deleting ALL of your pending stable patches from my
review queue now due to all of the problems that these have had.
Please work with a more experienced kernel developer at your company to
get these backports correct, and complete, and send them as a patch
series with the correct information and documentation as to what is
going on, so that we have a chance to get this right.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 6+ messages in thread
* Patch "[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute" has been added to the 5.4-stable tree
2024-12-11 10:15 [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute jianqi.ren.cn
@ 2024-12-12 12:17 ` gregkh
2024-12-12 12:11 ` Greg KH
2024-12-12 12:17 ` gregkh
2 siblings, 0 replies; 6+ messages in thread
From: gregkh @ 2024-12-12 12:17 UTC (permalink / raw)
To: Jerry.Zuo, Rodrigo.Siqueira, airlied, alexander.deucher, amd-gfx,
christian.koenig, daniel.wheeler, daniel, dri-devel, gregkh,
harry.wentland, jerry.zuo, jianqi.ren.cn, patches, sunpeng.li,
wayne.lin, zaeem.mohamed
Cc: stable-commits
This is a note to let you know that I've just added the patch titled
[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-don-t-refer-to-dc_sink-in-is_dsc_need_re_compute.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
From jianqi.ren.cn@windriver.com Thu Dec 12 13:11:21 2024
From: <jianqi.ren.cn@windriver.com>
Date: Wed, 11 Dec 2024 18:15:44 +0800
Subject: [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
To: <wayne.lin@amd.com>, <gregkh@linuxfoundation.org>
Cc: <patches@lists.linux.dev>, <jerry.zuo@amd.com>, <zaeem.mohamed@amd.com>, <daniel.wheeler@amd.com>, <alexander.deucher@amd.com>, <stable@vger.kernel.org>, <harry.wentland@amd.com>, <sunpeng.li@amd.com>, <Rodrigo.Siqueira@amd.com>, <christian.koenig@amd.com>, <airlied@gmail.com>, <daniel@ffwll.ch>, <Jerry.Zuo@amd.com>, <amd-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Message-ID: <20241211101544.2121147-1-jianqi.ren.cn@windriver.com>
From: Wayne Lin <wayne.lin@amd.com>
[ Upstream commit fcf6a49d79923a234844b8efe830a61f3f0584e4 ]
[Why]
When unplug one of monitors connected after mst hub, encounter null pointer dereference.
It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When
commit new state which directly referring to info stored in dc_sink will cause null pointer
dereference.
[how]
Remove redundant checking condition. Relevant condition should already be covered by checking
if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected.
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 1acef5f3838f..a1619f4569cf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -183,6 +183,8 @@ amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
dc_sink_release(dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
+ aconnector->dsc_aux = NULL;
+ port->passthrough_aux = NULL;
}
aconnector->mst_status = MST_STATUS_DEFAULT;
@@ -487,6 +489,8 @@ dm_dp_mst_detect(struct drm_connector *connector,
dc_sink_release(aconnector->dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
+ aconnector->dsc_aux = NULL;
+ port->passthrough_aux = NULL;
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID | MST_ALLOCATE_NEW_PAYLOAD | MST_CLEAR_ALLOCATED_PAYLOAD,
--
2.25.1
Patches currently in stable-queue which might be from jianqi.ren.cn@windriver.com are
queue-5.4/drm-amd-display-don-t-refer-to-dc_sink-in-is_dsc_need_re_compute.patch
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Patch "[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute" has been added to the 5.4-stable tree
@ 2024-12-12 12:17 ` gregkh
0 siblings, 0 replies; 6+ messages in thread
From: gregkh @ 2024-12-12 12:17 UTC (permalink / raw)
To: Jerry.Zuo, Rodrigo.Siqueira, airlied, alexander.deucher, amd-gfx,
christian.koenig, daniel.wheeler, daniel, dri-devel, gregkh,
harry.wentland, jerry.zuo, jianqi.ren.cn, patches, sunpeng.li,
wayne.lin, zaeem.mohamed
Cc: stable-commits
This is a note to let you know that I've just added the patch titled
[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-don-t-refer-to-dc_sink-in-is_dsc_need_re_compute.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
From jianqi.ren.cn@windriver.com Thu Dec 12 13:11:21 2024
From: <jianqi.ren.cn@windriver.com>
Date: Wed, 11 Dec 2024 18:15:44 +0800
Subject: [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
To: <wayne.lin@amd.com>, <gregkh@linuxfoundation.org>
Cc: <patches@lists.linux.dev>, <jerry.zuo@amd.com>, <zaeem.mohamed@amd.com>, <daniel.wheeler@amd.com>, <alexander.deucher@amd.com>, <stable@vger.kernel.org>, <harry.wentland@amd.com>, <sunpeng.li@amd.com>, <Rodrigo.Siqueira@amd.com>, <christian.koenig@amd.com>, <airlied@gmail.com>, <daniel@ffwll.ch>, <Jerry.Zuo@amd.com>, <amd-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Message-ID: <20241211101544.2121147-1-jianqi.ren.cn@windriver.com>
From: Wayne Lin <wayne.lin@amd.com>
[ Upstream commit fcf6a49d79923a234844b8efe830a61f3f0584e4 ]
[Why]
When unplug one of monitors connected after mst hub, encounter null pointer dereference.
It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When
commit new state which directly referring to info stored in dc_sink will cause null pointer
dereference.
[how]
Remove redundant checking condition. Relevant condition should already be covered by checking
if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected.
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 1acef5f3838f..a1619f4569cf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -183,6 +183,8 @@ amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
dc_sink_release(dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
+ aconnector->dsc_aux = NULL;
+ port->passthrough_aux = NULL;
}
aconnector->mst_status = MST_STATUS_DEFAULT;
@@ -487,6 +489,8 @@ dm_dp_mst_detect(struct drm_connector *connector,
dc_sink_release(aconnector->dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
+ aconnector->dsc_aux = NULL;
+ port->passthrough_aux = NULL;
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID | MST_ALLOCATE_NEW_PAYLOAD | MST_CLEAR_ALLOCATED_PAYLOAD,
--
2.25.1
Patches currently in stable-queue which might be from jianqi.ren.cn@windriver.com are
queue-5.4/drm-amd-display-don-t-refer-to-dc_sink-in-is_dsc_need_re_compute.patch
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: Patch "[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute" has been added to the 5.4-stable tree
2024-12-12 12:17 ` gregkh
(?)
@ 2024-12-12 17:57 ` Sasha Levin
-1 siblings, 0 replies; 6+ messages in thread
From: Sasha Levin @ 2024-12-12 17:57 UTC (permalink / raw)
To: stable; +Cc: gregkh, Sasha Levin
[ Sasha's backport helper bot ]
Hi,
The upstream commit SHA1 provided is correct: fcf6a49d79923a234844b8efe830a61f3f0584e4
WARNING: Author mismatch between patch and upstream commit:
Backport author: <gregkh@linuxfoundation.org>
Commit author: Wayne Lin <wayne.lin@amd.com>
Status in newer kernel trees:
6.12.y | Present (exact SHA1)
6.6.y | Present (different SHA1: c7e65cab54a8)
6.1.y | Not found
Note: The patch differs from the upstream commit:
---
1: fcf6a49d79923 ! 1: 79f06b6c107fd drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
@@
## Metadata ##
-Author: Wayne Lin <wayne.lin@amd.com>
+Author: gregkh@linuxfoundation.org <gregkh@linuxfoundation.org>
## Commit message ##
- drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
+ Patch "[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute" has been added to the 5.4-stable tree
+
+ This is a note to let you know that I've just added the patch titled
+
+ [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
+
+ to the 5.4-stable tree which can be found at:
+ http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
+
+ The filename of the patch is:
+ drm-amd-display-don-t-refer-to-dc_sink-in-is_dsc_need_re_compute.patch
+ and it can be found in the queue-5.4 subdirectory.
+
+ If you, or anyone else, feels it should not be added to the stable tree,
+ please let <stable@vger.kernel.org> know about it.
+
+ From jianqi.ren.cn@windriver.com Thu Dec 12 13:11:21 2024
+ From: <jianqi.ren.cn@windriver.com>
+ Date: Wed, 11 Dec 2024 18:15:44 +0800
+ Subject: [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
+ To: <wayne.lin@amd.com>, <gregkh@linuxfoundation.org>
+ Cc: <patches@lists.linux.dev>, <jerry.zuo@amd.com>, <zaeem.mohamed@amd.com>, <daniel.wheeler@amd.com>, <alexander.deucher@amd.com>, <stable@vger.kernel.org>, <harry.wentland@amd.com>, <sunpeng.li@amd.com>, <Rodrigo.Siqueira@amd.com>, <christian.koenig@amd.com>, <airlied@gmail.com>, <daniel@ffwll.ch>, <Jerry.Zuo@amd.com>, <amd-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
+ Message-ID: <20241211101544.2121147-1-jianqi.ren.cn@windriver.com>
+
+ From: Wayne Lin <wayne.lin@amd.com>
+
+ [ Upstream commit fcf6a49d79923a234844b8efe830a61f3f0584e4 ]
[Why]
When unplug one of monitors connected after mst hub, encounter null pointer dereference.
@@ Commit message
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+ Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
## drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c ##
@@ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
@@ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: dm_dp_mst_detect(st
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID | MST_ALLOCATE_NEW_PAYLOAD | MST_CLEAR_ALLOCATED_PAYLOAD,
-@@ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: static bool is_dsc_need_re_compute(
- if (!aconnector || !aconnector->dsc_aux)
- continue;
-
-- /*
-- * check if cached virtual MST DSC caps are available and DSC is supported
-- * as per specifications in their Virtual DPCD registers.
-- */
-- if (!(aconnector->dc_sink->dsc_caps.dsc_dec_caps.is_dsc_supported ||
-- aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_PASSTHROUGH_SUPPORT))
-- continue;
--
- stream_on_link[new_stream_on_link_num] = aconnector;
- new_stream_on_link_num++;
-
---
Results of testing on various branches:
| Branch | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.1.y | Success | Success |
| stable/linux-5.4.y | Failed | N/A |
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2024-12-12 17:57 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-12-11 10:15 [PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute jianqi.ren.cn
2024-12-11 16:33 ` Sasha Levin
2024-12-12 12:11 ` Greg KH
2024-12-12 12:17 ` Patch "[PATCH 6.1.y] drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute" has been added to the 5.4-stable tree gregkh
2024-12-12 12:17 ` gregkh
2024-12-12 17:57 ` Sasha Levin
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.