Re: [PATCH] drm/i915: Make kobj_type structures constant

From: Jani Nikula
Date: Fri Feb 17 2023 - 04:58:30 EST


On Thu, 16 Feb 2023, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> On Thu, 16 Feb 2023, Thomas Weißschuh <linux@xxxxxxxxxxxxxx> wrote:
>> Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
>> the driver core allows the usage of const struct kobj_type.
>>
>> Take advantage of this to constify the structure definitions to prevent
>> modification at runtime.
>>
>> Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
>
> Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>

And pushed to drm-intel-gt-next, thanks for the patch.

BR,
Jani.

>
>> ---
>> drivers/gpu/drm/i915/gt/intel_gt_sysfs.c | 2 +-
>> drivers/gpu/drm/i915/gt/sysfs_engines.c | 2 +-
>> 2 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
>> index 9486dd3bed99..df15b17caf89 100644
>> --- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
>> +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
>> @@ -71,7 +71,7 @@ static void kobj_gt_release(struct kobject *kobj)
>> {
>> }
>>
>> -static struct kobj_type kobj_gt_type = {
>> +static const struct kobj_type kobj_gt_type = {
>> .release = kobj_gt_release,
>> .sysfs_ops = &kobj_sysfs_ops,
>> .default_groups = id_groups,
>> diff --git a/drivers/gpu/drm/i915/gt/sysfs_engines.c b/drivers/gpu/drm/i915/gt/sysfs_engines.c
>> index f2d9858d827c..b5e0fe5dbf6c 100644
>> --- a/drivers/gpu/drm/i915/gt/sysfs_engines.c
>> +++ b/drivers/gpu/drm/i915/gt/sysfs_engines.c
>> @@ -421,7 +421,7 @@ static void kobj_engine_release(struct kobject *kobj)
>> kfree(kobj);
>> }
>>
>> -static struct kobj_type kobj_engine_type = {
>> +static const struct kobj_type kobj_engine_type = {
>> .release = kobj_engine_release,
>> .sysfs_ops = &kobj_sysfs_ops
>> };
>>
>> ---
>> base-commit: 033c40a89f55525139fd5b6342281b09b97d05bf
>> change-id: 20230216-kobj_type-i915-886bebc36129
>>
>> Best regards,

--
Jani Nikula, Intel Open Source Graphics Center