linux-kernel - Re: [PATCH 0/5] irq: generic-chip: resource management improvements

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Date:   Tue, 20 Jun 2017 11:41:43 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Bartosz Golaszewski <brgl@...ev.pl>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jonathan Corbet <corbet@....net>
Cc:     linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH 0/5] irq: generic-chip: resource management improvements

On 20/06/17 11:31, Bartosz Golaszewski wrote:
> 2017-05-31 18:06 GMT+02:00 Bartosz Golaszewski <brgl@...ev.pl>:
>> This series is a follow-up to [1].
>>
>> Some users of irq_alloc_generic_chip() are modules which can be
>> removed (e.g. gpio-ml-ioh) but have no means of freeing the allocated
>> generic chip.
>>
>> Last time it was suggested to provide irq_destroy_generic_chip() which
>> would undo both irq_remove_generic_chip() and irq_alloc_generic_chip().
>>
>> This functionality is provided by patch 2/5 with 1/5 adding the option
>> to only free the allocated memory.
>>
>> Patch 3/5 exports a function that will be used in the devres variant
>> of irq_alloc_generic_chip().
>>
>> Patches 4/5 and 5/5 add resource managed versions of
>> irq_alloc_generic_chip() & irq_setup_generic_chip(). They will be used
>> in drivers where applicable. Device resources are released in reverse
>> order so it's ok to call devm_irq_alloc_generic_chip() and then
>> devm_irq_setup_generic_chip().
>>
>> [1] https://lkml.org/lkml/2017/3/8/550
>>
>> Bartosz Golaszewski (5):
>>   irq: generic-chip: provide irq_free_generic_chip()
>>   irq: generic-chip: provide irq_destroy_generic_chip()
>>   irq: generic-chip: export irq_init_generic_chip() locally
>>   irq: generic-chip: provide devm_irq_alloc_generic_chip()
>>   irq: generic-chip: provide devm_irq_setup_generic_chip()
>>
>>  Documentation/driver-model/devres.txt |  2 +
>>  include/linux/irq.h                   | 22 +++++++++
>>  kernel/irq/devres.c                   | 86 +++++++++++++++++++++++++++++++++++
>>  kernel/irq/generic-chip.c             |  7 ++-
>>  kernel/irq/internals.h                | 11 +++++
>>  5 files changed, 124 insertions(+), 4 deletions(-)
>>
>> --
>> 2.9.3
>>
> 
> Ping for v4.13.
> 
> Is there any reason not to merge it?

There was a kbuild report from June 1st with worrying warnings on x86_64
(though I couldn't see how that was related to these patches). What's
the status of that?

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...