* [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-03 9:48 ` Nancy.Lin
0 siblings, 0 replies; 12+ messages in thread
From: Nancy.Lin @ 2023-08-03 9:48 UTC (permalink / raw)
To: Chun-Kuang Hu, Philipp Zabel, Matthias Brugger,
AngeloGioacchino Del Regno
Cc: singo.chang, linux-kernel, dri-devel,
Project_Global_Chrome_Upstream_Group, Nancy . Lin,
linux-mediatek, linux-arm-kernel
fix Smatch static checker warning
-Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
---
v3: fix reviewer comment in v2
v2: add Fixes tag
---
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index f114da4d36a9..771f4e173353 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
/* Not all drm components have a DTS device node, such as ovl_adaptor,
* which is the drm bring up sub driver
*/
- if (node) {
- comp_pdev = of_find_device_by_node(node);
- if (!comp_pdev) {
- DRM_INFO("Waiting for device %s\n", node->full_name);
- return -EPROBE_DEFER;
- }
- comp->dev = &comp_pdev->dev;
+ if (!node)
+ return 0;
+
+ comp_pdev = of_find_device_by_node(node);
+ if (!comp_pdev) {
+ DRM_INFO("Waiting for device %s\n", node->full_name);
+ return -EPROBE_DEFER;
}
+ comp->dev = &comp_pdev->dev;
if (type == MTK_DISP_AAL ||
type == MTK_DISP_BLS ||
@@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
type == MTK_DISP_MERGE ||
type == MTK_DISP_OVL ||
type == MTK_DISP_OVL_2L ||
- type == MTK_DISP_OVL_ADAPTOR ||
type == MTK_DISP_PWM ||
type == MTK_DISP_RDMA ||
type == MTK_DPI ||
--
2.18.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-03 9:48 ` Nancy.Lin
0 siblings, 0 replies; 12+ messages in thread
From: Nancy.Lin @ 2023-08-03 9:48 UTC (permalink / raw)
To: Chun-Kuang Hu, Philipp Zabel, Matthias Brugger,
AngeloGioacchino Del Regno
Cc: David Airlie, Daniel Vetter, Nancy . Lin, dri-devel,
linux-mediatek, linux-kernel, linux-arm-kernel,
Project_Global_Chrome_Upstream_Group, singo.chang
fix Smatch static checker warning
-Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
---
v3: fix reviewer comment in v2
v2: add Fixes tag
---
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index f114da4d36a9..771f4e173353 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
/* Not all drm components have a DTS device node, such as ovl_adaptor,
* which is the drm bring up sub driver
*/
- if (node) {
- comp_pdev = of_find_device_by_node(node);
- if (!comp_pdev) {
- DRM_INFO("Waiting for device %s\n", node->full_name);
- return -EPROBE_DEFER;
- }
- comp->dev = &comp_pdev->dev;
+ if (!node)
+ return 0;
+
+ comp_pdev = of_find_device_by_node(node);
+ if (!comp_pdev) {
+ DRM_INFO("Waiting for device %s\n", node->full_name);
+ return -EPROBE_DEFER;
}
+ comp->dev = &comp_pdev->dev;
if (type == MTK_DISP_AAL ||
type == MTK_DISP_BLS ||
@@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
type == MTK_DISP_MERGE ||
type == MTK_DISP_OVL ||
type == MTK_DISP_OVL_2L ||
- type == MTK_DISP_OVL_ADAPTOR ||
type == MTK_DISP_PWM ||
type == MTK_DISP_RDMA ||
type == MTK_DPI ||
--
2.18.0
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-03 9:48 ` Nancy.Lin
0 siblings, 0 replies; 12+ messages in thread
From: Nancy.Lin @ 2023-08-03 9:48 UTC (permalink / raw)
To: Chun-Kuang Hu, Philipp Zabel, Matthias Brugger,
AngeloGioacchino Del Regno
Cc: David Airlie, Daniel Vetter, Nancy . Lin, dri-devel,
linux-mediatek, linux-kernel, linux-arm-kernel,
Project_Global_Chrome_Upstream_Group, singo.chang
fix Smatch static checker warning
-Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
---
v3: fix reviewer comment in v2
v2: add Fixes tag
---
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index f114da4d36a9..771f4e173353 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
/* Not all drm components have a DTS device node, such as ovl_adaptor,
* which is the drm bring up sub driver
*/
- if (node) {
- comp_pdev = of_find_device_by_node(node);
- if (!comp_pdev) {
- DRM_INFO("Waiting for device %s\n", node->full_name);
- return -EPROBE_DEFER;
- }
- comp->dev = &comp_pdev->dev;
+ if (!node)
+ return 0;
+
+ comp_pdev = of_find_device_by_node(node);
+ if (!comp_pdev) {
+ DRM_INFO("Waiting for device %s\n", node->full_name);
+ return -EPROBE_DEFER;
}
+ comp->dev = &comp_pdev->dev;
if (type == MTK_DISP_AAL ||
type == MTK_DISP_BLS ||
@@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
type == MTK_DISP_MERGE ||
type == MTK_DISP_OVL ||
type == MTK_DISP_OVL_2L ||
- type == MTK_DISP_OVL_ADAPTOR ||
type == MTK_DISP_PWM ||
type == MTK_DISP_RDMA ||
type == MTK_DPI ||
--
2.18.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
2023-08-03 9:48 ` Nancy.Lin
(?)
@ 2023-08-03 10:15 ` Hari.PrasathGE
-1 siblings, 0 replies; 12+ messages in thread
From: Hari.PrasathGE @ 2023-08-03 10:15 UTC (permalink / raw)
To: nancy.lin, chunkuang.hu, p.zabel, matthias.bgg,
angelogioacchino.delregno
Cc: airlied, daniel, dri-devel, linux-mediatek, linux-kernel,
linux-arm-kernel, Project_Global_Chrome_Upstream_Group,
singo.chang
On 03/08/23 3:18 pm, Nancy.Lin wrote:
> [You don't often get email from nancy.lin@mediatek.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> fix Smatch static checker warning
> -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
>
> Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
> Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
> ---
> v3: fix reviewer comment in v2
> v2: add Fixes tag
> ---
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index f114da4d36a9..771f4e173353 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
> /* Not all drm components have a DTS device node, such as ovl_adaptor,
> * which is the drm bring up sub driver
> */
> - if (node) {
> - comp_pdev = of_find_device_by_node(node);
> - if (!comp_pdev) {
> - DRM_INFO("Waiting for device %s\n", node->full_name);
> - return -EPROBE_DEFER;
> - }
> - comp->dev = &comp_pdev->dev;
> + if (!node)
> + return 0;
> +
> + comp_pdev = of_find_device_by_node(node);
> + if (!comp_pdev) {
> + DRM_INFO("Waiting for device %s\n", node->full_name);
> + return -EPROBE_DEFER;
> }
> + comp->dev = &comp_pdev->dev;
>
> if (type == MTK_DISP_AAL ||
> type == MTK_DISP_BLS ||
> @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
> type == MTK_DISP_MERGE ||
> type == MTK_DISP_OVL ||
> type == MTK_DISP_OVL_2L ||
> - type == MTK_DISP_OVL_ADAPTOR ||
Is this also a related change ?
> type == MTK_DISP_PWM ||
> type == MTK_DISP_RDMA ||
> type == MTK_DPI ||
> --
> 2.18.0
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-03 10:15 ` Hari.PrasathGE
0 siblings, 0 replies; 12+ messages in thread
From: Hari.PrasathGE @ 2023-08-03 10:15 UTC (permalink / raw)
To: nancy.lin, chunkuang.hu, p.zabel, matthias.bgg,
angelogioacchino.delregno
Cc: airlied, daniel, dri-devel, linux-mediatek, linux-kernel,
linux-arm-kernel, Project_Global_Chrome_Upstream_Group,
singo.chang
On 03/08/23 3:18 pm, Nancy.Lin wrote:
> [You don't often get email from nancy.lin@mediatek.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> fix Smatch static checker warning
> -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
>
> Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
> Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
> ---
> v3: fix reviewer comment in v2
> v2: add Fixes tag
> ---
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index f114da4d36a9..771f4e173353 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
> /* Not all drm components have a DTS device node, such as ovl_adaptor,
> * which is the drm bring up sub driver
> */
> - if (node) {
> - comp_pdev = of_find_device_by_node(node);
> - if (!comp_pdev) {
> - DRM_INFO("Waiting for device %s\n", node->full_name);
> - return -EPROBE_DEFER;
> - }
> - comp->dev = &comp_pdev->dev;
> + if (!node)
> + return 0;
> +
> + comp_pdev = of_find_device_by_node(node);
> + if (!comp_pdev) {
> + DRM_INFO("Waiting for device %s\n", node->full_name);
> + return -EPROBE_DEFER;
> }
> + comp->dev = &comp_pdev->dev;
>
> if (type == MTK_DISP_AAL ||
> type == MTK_DISP_BLS ||
> @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
> type == MTK_DISP_MERGE ||
> type == MTK_DISP_OVL ||
> type == MTK_DISP_OVL_2L ||
> - type == MTK_DISP_OVL_ADAPTOR ||
Is this also a related change ?
> type == MTK_DISP_PWM ||
> type == MTK_DISP_RDMA ||
> type == MTK_DPI ||
> --
> 2.18.0
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-03 10:15 ` Hari.PrasathGE
0 siblings, 0 replies; 12+ messages in thread
From: Hari.PrasathGE @ 2023-08-03 10:15 UTC (permalink / raw)
To: nancy.lin, chunkuang.hu, p.zabel, matthias.bgg,
angelogioacchino.delregno
Cc: singo.chang, linux-kernel, dri-devel,
Project_Global_Chrome_Upstream_Group, linux-mediatek,
linux-arm-kernel
On 03/08/23 3:18 pm, Nancy.Lin wrote:
> [You don't often get email from nancy.lin@mediatek.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> fix Smatch static checker warning
> -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
>
> Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
> Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
> ---
> v3: fix reviewer comment in v2
> v2: add Fixes tag
> ---
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index f114da4d36a9..771f4e173353 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
> /* Not all drm components have a DTS device node, such as ovl_adaptor,
> * which is the drm bring up sub driver
> */
> - if (node) {
> - comp_pdev = of_find_device_by_node(node);
> - if (!comp_pdev) {
> - DRM_INFO("Waiting for device %s\n", node->full_name);
> - return -EPROBE_DEFER;
> - }
> - comp->dev = &comp_pdev->dev;
> + if (!node)
> + return 0;
> +
> + comp_pdev = of_find_device_by_node(node);
> + if (!comp_pdev) {
> + DRM_INFO("Waiting for device %s\n", node->full_name);
> + return -EPROBE_DEFER;
> }
> + comp->dev = &comp_pdev->dev;
>
> if (type == MTK_DISP_AAL ||
> type == MTK_DISP_BLS ||
> @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
> type == MTK_DISP_MERGE ||
> type == MTK_DISP_OVL ||
> type == MTK_DISP_OVL_2L ||
> - type == MTK_DISP_OVL_ADAPTOR ||
Is this also a related change ?
> type == MTK_DISP_PWM ||
> type == MTK_DISP_RDMA ||
> type == MTK_DPI ||
> --
> 2.18.0
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
2023-08-03 10:15 ` Hari.PrasathGE
(?)
@ 2023-08-04 2:04 ` Nancy Lin (林欣螢)
-1 siblings, 0 replies; 12+ messages in thread
From: Nancy Lin (林欣螢) @ 2023-08-04 2:04 UTC (permalink / raw)
To: p.zabel, matthias.bgg, chunkuang.hu, Hari.PrasathGE,
angelogioacchino.delregno
Cc: linux-mediatek, linux-kernel,
Singo Chang (張興國),
daniel, dri-devel, Project_Global_Chrome_Upstream_Group, airlied,
linux-arm-kernel
Hi Hari,
Thanks for the review.
On Thu, 2023-08-03 at 10:15 +0000, Hari.PrasathGE@microchip.com wrote:
>
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> On 03/08/23 3:18 pm, Nancy.Lin wrote:
> > [You don't often get email from nancy.lin@mediatek.com. Learn why
> this is important at https://aka.ms/LearnAboutSenderIdentification ]
> >
> > EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
> >
> > fix Smatch static checker warning
> > -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
> >
> > Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver
> for MT8195")
> > Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
> > ---
> > v3: fix reviewer comment in v2
> > v2: add Fixes tag
> > ---
> > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
> > 1 file changed, 8 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index f114da4d36a9..771f4e173353 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node
> *node, struct mtk_ddp_comp *comp,
> > /* Not all drm components have a DTS device node, such as
> ovl_adaptor,
> > * which is the drm bring up sub driver
> > */
> > - if (node) {
> > - comp_pdev = of_find_device_by_node(node);
> > - if (!comp_pdev) {
> > - DRM_INFO("Waiting for device %s\n", node-
> >full_name);
> > - return -EPROBE_DEFER;
> > - }
> > - comp->dev = &comp_pdev->dev;
> > + if (!node)
> > + return 0;
> > +
> > + comp_pdev = of_find_device_by_node(node);
> > + if (!comp_pdev) {
> > + DRM_INFO("Waiting for device %s\n", node-
> >full_name);
> > + return -EPROBE_DEFER;
> > }
> > + comp->dev = &comp_pdev->dev;
> >
> > if (type == MTK_DISP_AAL ||
> > type == MTK_DISP_BLS ||
> > @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node,
> struct mtk_ddp_comp *comp,
> > type == MTK_DISP_MERGE ||
> > type == MTK_DISP_OVL ||
> > type == MTK_DISP_OVL_2L ||
> > - type == MTK_DISP_OVL_ADAPTOR ||
>
> Is this also a related change ?
>
These are the relevant modifications. MTK_DISP_OVL_ADAPTOR type
component is a sub-driver of DRM that does not have a DTS node. This
modification will return when checking if node is NULL, which means the
comp with MTK_DISP_OVL_ADAPTOR type will also return above. Therefore,
the condition "type == MTK_DISP_OVL_ADAPTOR" is unnecessary here.
Regards,
Nancy
> > type == MTK_DISP_PWM ||
> > type == MTK_DISP_RDMA ||
> > type == MTK_DPI ||
> > --
> > 2.18.0
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-04 2:04 ` Nancy Lin (林欣螢)
0 siblings, 0 replies; 12+ messages in thread
From: Nancy Lin (林欣螢) @ 2023-08-04 2:04 UTC (permalink / raw)
To: p.zabel, matthias.bgg, chunkuang.hu, Hari.PrasathGE,
angelogioacchino.delregno
Cc: Singo Chang (張興國),
linux-kernel, dri-devel, Project_Global_Chrome_Upstream_Group,
linux-mediatek, linux-arm-kernel
[-- Attachment #1: Type: text/html, Size: 7665 bytes --]
[-- Attachment #2: Type: text/plain, Size: 3339 bytes --]
Hi Hari,
Thanks for the review.
On Thu, 2023-08-03 at 10:15 +0000, Hari.PrasathGE@microchip.com wrote:
>
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> On 03/08/23 3:18 pm, Nancy.Lin wrote:
> > [You don't often get email from nancy.lin@mediatek.com. Learn why
> this is important at https://aka.ms/LearnAboutSenderIdentification ]
> >
> > EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
> >
> > fix Smatch static checker warning
> > -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
> >
> > Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver
> for MT8195")
> > Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
> > ---
> > v3: fix reviewer comment in v2
> > v2: add Fixes tag
> > ---
> > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
> > 1 file changed, 8 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index f114da4d36a9..771f4e173353 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node
> *node, struct mtk_ddp_comp *comp,
> > /* Not all drm components have a DTS device node, such as
> ovl_adaptor,
> > * which is the drm bring up sub driver
> > */
> > - if (node) {
> > - comp_pdev = of_find_device_by_node(node);
> > - if (!comp_pdev) {
> > - DRM_INFO("Waiting for device %s\n", node-
> >full_name);
> > - return -EPROBE_DEFER;
> > - }
> > - comp->dev = &comp_pdev->dev;
> > + if (!node)
> > + return 0;
> > +
> > + comp_pdev = of_find_device_by_node(node);
> > + if (!comp_pdev) {
> > + DRM_INFO("Waiting for device %s\n", node-
> >full_name);
> > + return -EPROBE_DEFER;
> > }
> > + comp->dev = &comp_pdev->dev;
> >
> > if (type == MTK_DISP_AAL ||
> > type == MTK_DISP_BLS ||
> > @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node,
> struct mtk_ddp_comp *comp,
> > type == MTK_DISP_MERGE ||
> > type == MTK_DISP_OVL ||
> > type == MTK_DISP_OVL_2L ||
> > - type == MTK_DISP_OVL_ADAPTOR ||
>
> Is this also a related change ?
>
These are the relevant modifications. MTK_DISP_OVL_ADAPTOR type
component is a sub-driver of DRM that does not have a DTS node. This
modification will return when checking if node is NULL, which means the
comp with MTK_DISP_OVL_ADAPTOR type will also return above. Therefore,
the condition "type == MTK_DISP_OVL_ADAPTOR" is unnecessary here.
Regards,
Nancy
> > type == MTK_DISP_PWM ||
> > type == MTK_DISP_RDMA ||
> > type == MTK_DPI ||
> > --
> > 2.18.0
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-04 2:04 ` Nancy Lin (林欣螢)
0 siblings, 0 replies; 12+ messages in thread
From: Nancy Lin (林欣螢) @ 2023-08-04 2:04 UTC (permalink / raw)
To: p.zabel, matthias.bgg, chunkuang.hu, Hari.PrasathGE,
angelogioacchino.delregno
Cc: linux-mediatek, linux-kernel,
Singo Chang (張興國),
daniel, dri-devel, Project_Global_Chrome_Upstream_Group, airlied,
linux-arm-kernel
Hi Hari,
Thanks for the review.
On Thu, 2023-08-03 at 10:15 +0000, Hari.PrasathGE@microchip.com wrote:
>
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> On 03/08/23 3:18 pm, Nancy.Lin wrote:
> > [You don't often get email from nancy.lin@mediatek.com. Learn why
> this is important at https://aka.ms/LearnAboutSenderIdentification ]
> >
> > EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
> >
> > fix Smatch static checker warning
> > -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
> >
> > Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver
> for MT8195")
> > Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
> > ---
> > v3: fix reviewer comment in v2
> > v2: add Fixes tag
> > ---
> > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
> > 1 file changed, 8 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index f114da4d36a9..771f4e173353 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node
> *node, struct mtk_ddp_comp *comp,
> > /* Not all drm components have a DTS device node, such as
> ovl_adaptor,
> > * which is the drm bring up sub driver
> > */
> > - if (node) {
> > - comp_pdev = of_find_device_by_node(node);
> > - if (!comp_pdev) {
> > - DRM_INFO("Waiting for device %s\n", node-
> >full_name);
> > - return -EPROBE_DEFER;
> > - }
> > - comp->dev = &comp_pdev->dev;
> > + if (!node)
> > + return 0;
> > +
> > + comp_pdev = of_find_device_by_node(node);
> > + if (!comp_pdev) {
> > + DRM_INFO("Waiting for device %s\n", node-
> >full_name);
> > + return -EPROBE_DEFER;
> > }
> > + comp->dev = &comp_pdev->dev;
> >
> > if (type == MTK_DISP_AAL ||
> > type == MTK_DISP_BLS ||
> > @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node,
> struct mtk_ddp_comp *comp,
> > type == MTK_DISP_MERGE ||
> > type == MTK_DISP_OVL ||
> > type == MTK_DISP_OVL_2L ||
> > - type == MTK_DISP_OVL_ADAPTOR ||
>
> Is this also a related change ?
>
These are the relevant modifications. MTK_DISP_OVL_ADAPTOR type
component is a sub-driver of DRM that does not have a DTS node. This
modification will return when checking if node is NULL, which means the
comp with MTK_DISP_OVL_ADAPTOR type will also return above. Therefore,
the condition "type == MTK_DISP_OVL_ADAPTOR" is unnecessary here.
Regards,
Nancy
> > type == MTK_DISP_PWM ||
> > type == MTK_DISP_RDMA ||
> > type == MTK_DPI ||
> > --
> > 2.18.0
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
2023-08-04 2:04 ` Nancy Lin (林欣螢)
(?)
@ 2023-08-04 5:17 ` Hari.PrasathGE
-1 siblings, 0 replies; 12+ messages in thread
From: Hari.PrasathGE @ 2023-08-04 5:17 UTC (permalink / raw)
To: Nancy.Lin, p.zabel, matthias.bgg, chunkuang.hu,
angelogioacchino.delregno
Cc: linux-mediatek, linux-kernel, Singo.Chang, daniel, dri-devel,
Project_Global_Chrome_Upstream_Group, airlied, linux-arm-kernel
On 04/08/23 7:34 am, Nancy Lin (林欣螢) wrote:
> [You don't often get email from nancy.lin@mediatek.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Hi Hari,
>
> Thanks for the review.
>
you're welcome :)
> On Thu, 2023-08-03 at 10:15 +0000, Hari.PrasathGE@microchip.com wrote:
>>
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>> On 03/08/23 3:18 pm, Nancy.Lin wrote:
>>> [You don't often get email from nancy.lin@mediatek.com. Learn why
>> this is important at https://aka.ms/LearnAboutSenderIdentification ]
>>>
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you
>> know the content is safe
>>>
>>> fix Smatch static checker warning
>>> -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
>>>
>>> Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver
>> for MT8195")
>>> Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
>>> ---
>>> v3: fix reviewer comment in v2
>>> v2: add Fixes tag
>>> ---
>>> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
>>> 1 file changed, 8 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> index f114da4d36a9..771f4e173353 100644
>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node
>> *node, struct mtk_ddp_comp *comp,
>>> /* Not all drm components have a DTS device node, such as
>> ovl_adaptor,
>>> * which is the drm bring up sub driver
>>> */
>>> - if (node) {
>>> - comp_pdev = of_find_device_by_node(node);
>>> - if (!comp_pdev) {
>>> - DRM_INFO("Waiting for device %s\n", node-
>>> full_name);
>>> - return -EPROBE_DEFER;
>>> - }
>>> - comp->dev = &comp_pdev->dev;
>>> + if (!node)
>>> + return 0;
>>> +
>>> + comp_pdev = of_find_device_by_node(node);
>>> + if (!comp_pdev) {
>>> + DRM_INFO("Waiting for device %s\n", node-
>>> full_name);
>>> + return -EPROBE_DEFER;
>>> }
>>> + comp->dev = &comp_pdev->dev;
>>>
>>> if (type == MTK_DISP_AAL ||
>>> type == MTK_DISP_BLS ||
>>> @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node,
>> struct mtk_ddp_comp *comp,
>>> type == MTK_DISP_MERGE ||
>>> type == MTK_DISP_OVL ||
>>> type == MTK_DISP_OVL_2L ||
>>> - type == MTK_DISP_OVL_ADAPTOR ||
>>
>> Is this also a related change ?
>>
>
> These are the relevant modifications. MTK_DISP_OVL_ADAPTOR type
> component is a sub-driver of DRM that does not have a DTS node. This
> modification will return when checking if node is NULL, which means the
> comp with MTK_DISP_OVL_ADAPTOR type will also return above. Therefore,
> the condition "type == MTK_DISP_OVL_ADAPTOR" is unnecessary here.
>
> Regards,
> Nancy
>
Oh I didn't notice that it fixes a different commit(0d9eee9118b7) that
you mentioned in your commit message. Thanks for the clarification.
>>> type == MTK_DISP_PWM ||
>>> type == MTK_DISP_RDMA ||
>>> type == MTK_DPI ||
>>> --
>>> 2.18.0
>>>
>>>
>>> _______________________________________________
>>> linux-arm-kernel mailing list
>>> linux-arm-kernel@lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>
>>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-04 5:17 ` Hari.PrasathGE
0 siblings, 0 replies; 12+ messages in thread
From: Hari.PrasathGE @ 2023-08-04 5:17 UTC (permalink / raw)
To: Nancy.Lin, p.zabel, matthias.bgg, chunkuang.hu,
angelogioacchino.delregno
Cc: linux-mediatek, linux-kernel, Singo.Chang, daniel, dri-devel,
Project_Global_Chrome_Upstream_Group, airlied, linux-arm-kernel
On 04/08/23 7:34 am, Nancy Lin (林欣螢) wrote:
> [You don't often get email from nancy.lin@mediatek.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Hi Hari,
>
> Thanks for the review.
>
you're welcome :)
> On Thu, 2023-08-03 at 10:15 +0000, Hari.PrasathGE@microchip.com wrote:
>>
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>> On 03/08/23 3:18 pm, Nancy.Lin wrote:
>>> [You don't often get email from nancy.lin@mediatek.com. Learn why
>> this is important at https://aka.ms/LearnAboutSenderIdentification ]
>>>
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you
>> know the content is safe
>>>
>>> fix Smatch static checker warning
>>> -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
>>>
>>> Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver
>> for MT8195")
>>> Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
>>> ---
>>> v3: fix reviewer comment in v2
>>> v2: add Fixes tag
>>> ---
>>> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
>>> 1 file changed, 8 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> index f114da4d36a9..771f4e173353 100644
>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node
>> *node, struct mtk_ddp_comp *comp,
>>> /* Not all drm components have a DTS device node, such as
>> ovl_adaptor,
>>> * which is the drm bring up sub driver
>>> */
>>> - if (node) {
>>> - comp_pdev = of_find_device_by_node(node);
>>> - if (!comp_pdev) {
>>> - DRM_INFO("Waiting for device %s\n", node-
>>> full_name);
>>> - return -EPROBE_DEFER;
>>> - }
>>> - comp->dev = &comp_pdev->dev;
>>> + if (!node)
>>> + return 0;
>>> +
>>> + comp_pdev = of_find_device_by_node(node);
>>> + if (!comp_pdev) {
>>> + DRM_INFO("Waiting for device %s\n", node-
>>> full_name);
>>> + return -EPROBE_DEFER;
>>> }
>>> + comp->dev = &comp_pdev->dev;
>>>
>>> if (type == MTK_DISP_AAL ||
>>> type == MTK_DISP_BLS ||
>>> @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node,
>> struct mtk_ddp_comp *comp,
>>> type == MTK_DISP_MERGE ||
>>> type == MTK_DISP_OVL ||
>>> type == MTK_DISP_OVL_2L ||
>>> - type == MTK_DISP_OVL_ADAPTOR ||
>>
>> Is this also a related change ?
>>
>
> These are the relevant modifications. MTK_DISP_OVL_ADAPTOR type
> component is a sub-driver of DRM that does not have a DTS node. This
> modification will return when checking if node is NULL, which means the
> comp with MTK_DISP_OVL_ADAPTOR type will also return above. Therefore,
> the condition "type == MTK_DISP_OVL_ADAPTOR" is unnecessary here.
>
> Regards,
> Nancy
>
Oh I didn't notice that it fixes a different commit(0d9eee9118b7) that
you mentioned in your commit message. Thanks for the clarification.
>>> type == MTK_DISP_PWM ||
>>> type == MTK_DISP_RDMA ||
>>> type == MTK_DPI ||
>>> --
>>> 2.18.0
>>>
>>>
>>> _______________________________________________
>>> linux-arm-kernel mailing list
>>> linux-arm-kernel@lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>
>>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v3] drm/mediatek: fix uninitialized symbol
@ 2023-08-04 5:17 ` Hari.PrasathGE
0 siblings, 0 replies; 12+ messages in thread
From: Hari.PrasathGE @ 2023-08-04 5:17 UTC (permalink / raw)
To: Nancy.Lin, p.zabel, matthias.bgg, chunkuang.hu,
angelogioacchino.delregno
Cc: Singo.Chang, linux-kernel, dri-devel,
Project_Global_Chrome_Upstream_Group, linux-mediatek,
linux-arm-kernel
On 04/08/23 7:34 am, Nancy Lin (林欣螢) wrote:
> [You don't often get email from nancy.lin@mediatek.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Hi Hari,
>
> Thanks for the review.
>
you're welcome :)
> On Thu, 2023-08-03 at 10:15 +0000, Hari.PrasathGE@microchip.com wrote:
>>
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>> On 03/08/23 3:18 pm, Nancy.Lin wrote:
>>> [You don't often get email from nancy.lin@mediatek.com. Learn why
>> this is important at https://aka.ms/LearnAboutSenderIdentification ]
>>>
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you
>> know the content is safe
>>>
>>> fix Smatch static checker warning
>>> -Fix uninitialized symbol comp_pdev in mtk_ddp_comp_init.
>>>
>>> Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver
>> for MT8195")
>>> Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
>>> ---
>>> v3: fix reviewer comment in v2
>>> v2: add Fixes tag
>>> ---
>>> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 16 ++++++++--------
>>> 1 file changed, 8 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> index f114da4d36a9..771f4e173353 100644
>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>>> @@ -563,14 +563,15 @@ int mtk_ddp_comp_init(struct device_node
>> *node, struct mtk_ddp_comp *comp,
>>> /* Not all drm components have a DTS device node, such as
>> ovl_adaptor,
>>> * which is the drm bring up sub driver
>>> */
>>> - if (node) {
>>> - comp_pdev = of_find_device_by_node(node);
>>> - if (!comp_pdev) {
>>> - DRM_INFO("Waiting for device %s\n", node-
>>> full_name);
>>> - return -EPROBE_DEFER;
>>> - }
>>> - comp->dev = &comp_pdev->dev;
>>> + if (!node)
>>> + return 0;
>>> +
>>> + comp_pdev = of_find_device_by_node(node);
>>> + if (!comp_pdev) {
>>> + DRM_INFO("Waiting for device %s\n", node-
>>> full_name);
>>> + return -EPROBE_DEFER;
>>> }
>>> + comp->dev = &comp_pdev->dev;
>>>
>>> if (type == MTK_DISP_AAL ||
>>> type == MTK_DISP_BLS ||
>>> @@ -580,7 +581,6 @@ int mtk_ddp_comp_init(struct device_node *node,
>> struct mtk_ddp_comp *comp,
>>> type == MTK_DISP_MERGE ||
>>> type == MTK_DISP_OVL ||
>>> type == MTK_DISP_OVL_2L ||
>>> - type == MTK_DISP_OVL_ADAPTOR ||
>>
>> Is this also a related change ?
>>
>
> These are the relevant modifications. MTK_DISP_OVL_ADAPTOR type
> component is a sub-driver of DRM that does not have a DTS node. This
> modification will return when checking if node is NULL, which means the
> comp with MTK_DISP_OVL_ADAPTOR type will also return above. Therefore,
> the condition "type == MTK_DISP_OVL_ADAPTOR" is unnecessary here.
>
> Regards,
> Nancy
>
Oh I didn't notice that it fixes a different commit(0d9eee9118b7) that
you mentioned in your commit message. Thanks for the clarification.
>>> type == MTK_DISP_PWM ||
>>> type == MTK_DISP_RDMA ||
>>> type == MTK_DPI ||
>>> --
>>> 2.18.0
>>>
>>>
>>> _______________________________________________
>>> linux-arm-kernel mailing list
>>> linux-arm-kernel@lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>
>>
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2023-08-04 7:18 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-08-03 9:48 [PATCH v3] drm/mediatek: fix uninitialized symbol Nancy.Lin
2023-08-03 9:48 ` Nancy.Lin
2023-08-03 9:48 ` Nancy.Lin
2023-08-03 10:15 ` Hari.PrasathGE
2023-08-03 10:15 ` Hari.PrasathGE
2023-08-03 10:15 ` Hari.PrasathGE
2023-08-04 2:04 ` Nancy Lin (林欣螢)
2023-08-04 2:04 ` Nancy Lin (林欣螢)
2023-08-04 2:04 ` Nancy Lin (林欣螢)
2023-08-04 5:17 ` Hari.PrasathGE
2023-08-04 5:17 ` Hari.PrasathGE
2023-08-04 5:17 ` Hari.PrasathGE
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