2018-12-05 19:55:03

by Rob Herring

[permalink] [raw]
Subject: [PATCH] devfreq: Use of_node_name_eq for node name comparisons

Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

For instances using of_node_cmp, this has the side effect of now using
case sensitive comparisons. This should not matter for any FDT based
system which all of these are.

Cc: Chanwoo Choi <[email protected]>
Cc: MyungJoo Ham <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Rob Herring <[email protected]>
---
drivers/devfreq/devfreq-event.c | 2 +-
drivers/devfreq/event/exynos-ppmu.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c
index d67242d87744..87e93406d7cd 100644
--- a/drivers/devfreq/devfreq-event.c
+++ b/drivers/devfreq/devfreq-event.c
@@ -240,7 +240,7 @@ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev,
}

list_for_each_entry(edev, &devfreq_event_list, node) {
- if (!strcmp(edev->desc->name, node->name))
+ if (of_node_name_eq(node, edev->desc->name))
goto out;
}
edev = NULL;
diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
index c61de0bdf053..c2ea94957501 100644
--- a/drivers/devfreq/event/exynos-ppmu.c
+++ b/drivers/devfreq/event/exynos-ppmu.c
@@ -529,7 +529,7 @@ static int of_get_devfreq_events(struct device_node *np,
if (!ppmu_events[i].name)
continue;

- if (!of_node_cmp(node->name, ppmu_events[i].name))
+ if (of_node_name_eq(node, ppmu_events[i].name))
break;
}

--
2.19.1



2018-12-16 09:14:03

by MyungJoo Ham

[permalink] [raw]
Subject: Re: [PATCH] devfreq: Use of_node_name_eq for node name comparisons

On Thu, Dec 6, 2018 at 4:54 AM Rob Herring <[email protected]> wrote:
>
> Convert string compares of DT node names to use of_node_name_eq helper
> instead. This removes direct access to the node name pointer.
>
> For instances using of_node_cmp, this has the side effect of now using
> case sensitive comparisons. This should not matter for any FDT based
> system which all of these are.
>
> Cc: Chanwoo Choi <[email protected]>
> Cc: MyungJoo Ham <[email protected]>
> Cc: Kyungmin Park <[email protected]>
> Cc: Kukjin Kim <[email protected]>
> Cc: Krzysztof Kozlowski <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Signed-off-by: Rob Herring <[email protected]>

Acked-by: MyungJoo Ham <[email protected]>

> ---
> drivers/devfreq/devfreq-event.c | 2 +-
> drivers/devfreq/event/exynos-ppmu.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)

2019-02-13 16:21:25

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH] devfreq: Use of_node_name_eq for node name comparisons

On Wed, Dec 5, 2018 at 1:50 PM Rob Herring <[email protected]> wrote:
>
> Convert string compares of DT node names to use of_node_name_eq helper
> instead. This removes direct access to the node name pointer.
>
> For instances using of_node_cmp, this has the side effect of now using
> case sensitive comparisons. This should not matter for any FDT based
> system which all of these are.
>
> Cc: Chanwoo Choi <[email protected]>
> Cc: MyungJoo Ham <[email protected]>
> Cc: Kyungmin Park <[email protected]>
> Cc: Kukjin Kim <[email protected]>
> Cc: Krzysztof Kozlowski <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Signed-off-by: Rob Herring <[email protected]>
> ---
> drivers/devfreq/devfreq-event.c | 2 +-
> drivers/devfreq/event/exynos-ppmu.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)

Can someone apply this please.

>
> diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c
> index d67242d87744..87e93406d7cd 100644
> --- a/drivers/devfreq/devfreq-event.c
> +++ b/drivers/devfreq/devfreq-event.c
> @@ -240,7 +240,7 @@ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev,
> }
>
> list_for_each_entry(edev, &devfreq_event_list, node) {
> - if (!strcmp(edev->desc->name, node->name))
> + if (of_node_name_eq(node, edev->desc->name))
> goto out;
> }
> edev = NULL;
> diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
> index c61de0bdf053..c2ea94957501 100644
> --- a/drivers/devfreq/event/exynos-ppmu.c
> +++ b/drivers/devfreq/event/exynos-ppmu.c
> @@ -529,7 +529,7 @@ static int of_get_devfreq_events(struct device_node *np,
> if (!ppmu_events[i].name)
> continue;
>
> - if (!of_node_cmp(node->name, ppmu_events[i].name))
> + if (of_node_name_eq(node, ppmu_events[i].name))
> break;
> }
>
> --
> 2.19.1
>

2019-02-14 10:52:46

by Chanwoo Choi

[permalink] [raw]
Subject: Re: [PATCH] devfreq: Use of_node_name_eq for node name comparisons

Hi Rob,

On 19. 2. 14. 오전 1:09, Rob Herring wrote:
> On Wed, Dec 5, 2018 at 1:50 PM Rob Herring <[email protected]> wrote:
>>
>> Convert string compares of DT node names to use of_node_name_eq helper
>> instead. This removes direct access to the node name pointer.
>>
>> For instances using of_node_cmp, this has the side effect of now using
>> case sensitive comparisons. This should not matter for any FDT based
>> system which all of these are.
>>
>> Cc: Chanwoo Choi <[email protected]>
>> Cc: MyungJoo Ham <[email protected]>
>> Cc: Kyungmin Park <[email protected]>
>> Cc: Kukjin Kim <[email protected]>
>> Cc: Krzysztof Kozlowski <[email protected]>
>> Cc: [email protected]
>> Cc: [email protected]
>> Cc: [email protected]
>> Signed-off-by: Rob Herring <[email protected]>
>> ---
>> drivers/devfreq/devfreq-event.c | 2 +-
>> drivers/devfreq/event/exynos-ppmu.c | 2 +-
>> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> Can someone apply this please.

Myungjoo picked up this patch[1] on devfreq.git
but has not yet sent the pull request.

[1]
https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git/commit/?h=for-next&id=0c1e8ce295acc3becc95e393e88a9a6da233074f

>
>>
>> diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c
>> index d67242d87744..87e93406d7cd 100644
>> --- a/drivers/devfreq/devfreq-event.c
>> +++ b/drivers/devfreq/devfreq-event.c
>> @@ -240,7 +240,7 @@ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev,
>> }
>>
>> list_for_each_entry(edev, &devfreq_event_list, node) {
>> - if (!strcmp(edev->desc->name, node->name))
>> + if (of_node_name_eq(node, edev->desc->name))
>> goto out;
>> }
>> edev = NULL;
>> diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
>> index c61de0bdf053..c2ea94957501 100644
>> --- a/drivers/devfreq/event/exynos-ppmu.c
>> +++ b/drivers/devfreq/event/exynos-ppmu.c
>> @@ -529,7 +529,7 @@ static int of_get_devfreq_events(struct device_node *np,
>> if (!ppmu_events[i].name)
>> continue;
>>
>> - if (!of_node_cmp(node->name, ppmu_events[i].name))
>> + if (of_node_name_eq(node, ppmu_events[i].name))
>> break;
>> }
>>
>> --
>> 2.19.1
>>
>
>


--
Best Regards,
Chanwoo Choi
Samsung Electronics

2019-02-15 00:04:30

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH] devfreq: Use of_node_name_eq for node name comparisons

On Wed, Feb 13, 2019 at 9:49 PM Chanwoo Choi <[email protected]> wrote:
>
> Hi Rob,
>
> On 19. 2. 14. 오전 1:09, Rob Herring wrote:
> > On Wed, Dec 5, 2018 at 1:50 PM Rob Herring <[email protected]> wrote:
> >>
> >> Convert string compares of DT node names to use of_node_name_eq helper
> >> instead. This removes direct access to the node name pointer.
> >>
> >> For instances using of_node_cmp, this has the side effect of now using
> >> case sensitive comparisons. This should not matter for any FDT based
> >> system which all of these are.
> >>
> >> Cc: Chanwoo Choi <[email protected]>
> >> Cc: MyungJoo Ham <[email protected]>
> >> Cc: Kyungmin Park <[email protected]>
> >> Cc: Kukjin Kim <[email protected]>
> >> Cc: Krzysztof Kozlowski <[email protected]>
> >> Cc: [email protected]
> >> Cc: [email protected]
> >> Cc: [email protected]
> >> Signed-off-by: Rob Herring <[email protected]>
> >> ---
> >> drivers/devfreq/devfreq-event.c | 2 +-
> >> drivers/devfreq/event/exynos-ppmu.c | 2 +-
> >> 2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > Can someone apply this please.
>
> Myungjoo picked up this patch[1] on devfreq.git
> but has not yet sent the pull request.

Okay, thanks.

Please add that tree to linux-next or reply to patches when they've
been applied, so submitters have some way to know when their patch is
accepted.

Rob