linux-kernel - Re: [PATCH] drm/i915: Make kobj

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Date:   Fri, 17 Feb 2023 11:58:08 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Thomas Weißschuh <linux@...ssschuh.net>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: Re: [PATCH] drm/i915: Make kobj_type structures constant

On Thu, 16 Feb 2023, Jani Nikula <jani.nikula@...ux.intel.com> wrote:
> On Thu, 16 Feb 2023, Thomas Weißschuh <linux@...ssschuh.net> 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@...ssschuh.net>
>
> Reviewed-by: Jani Nikula <jani.nikula@...el.com>

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