[PATCH 1/2] devm-helpers: Add resource managed version of mutex init

[George Stark]

On 2/23/24 15:26, Marek Behún wrote:
> On Thu, 22 Feb 2024 23:42:11 +0200
> andy.shevchenko at gmail.com wrote:
> 
>> Thu, Feb 22, 2024 at 03:58:37PM +0100, Marek Behún kirjoitti:
>>> A few drivers are doing resource-managed mutex initialization by
>>> implementing ad-hoc one-liner mutex dropping functions and using them
>>> with devm_add_action_or_reset(). Help drivers avoid these repeated
>>> one-liners by adding managed version of mutex initialization.
>>>
>>> Use the new function devm_mutex_init() in the following drivers:
>>>    drivers/gpio/gpio-pisosr.c
>>>    drivers/gpio/gpio-sim.c
>>>    drivers/gpu/drm/xe/xe_hwmon.c
>>>    drivers/hwmon/nzxt-smart2.c
>>>    drivers/leds/leds-is31fl319x.c
>>>    drivers/power/supply/mt6370-charger.c
>>>    drivers/power/supply/rt9467-charger.c
>>
>> Pardon me, but why?
>>
>> https://lore.kernel.org/linux-leds/20231214173614.2820929-1-gnstark@salutedevices.com/
>>
>> Can you cooperate, folks, instead of doing something independently?

Hello Andy

Thanks for pointing to my patch series
> 
> Thanks Andy for pointing to George's patch series.
> 
> I can drop the mutex_init() part and add just the debugfs part.

Hello Marek

I started to propose devm_mutex_init in December 2023. We tried to put 
it in devm-helpers.h firstly then we came to conclusion that 
linux/mutex.h would be a better place for it. Now I'm waiting for this 
series [1] to be merged because my patch depends on it. I'll let you 
know when I have an update.

[1] 
https://lore.kernel.org/lkml/20240222150540.79981-2-longman@redhat.com/T/
> 
> Marek

-- 
Best regards
George