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Re: [PATCH] thermal: power_allocator: do not use devm* interfaces

From Dmitry Torokhov <dmitry.torokhov@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH] thermal: power_allocator: do not use devm* interfaces
Date 2015-08-05 19:00 +0200
Message-ID <pUacO-7dQ-19@gated-at.bofh.it> (permalink)
References <pTNpT-7C4-1@gated-at.bofh.it> <pU2fg-4cC-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Aug 05, 2015 at 09:29:11AM +0100, Javi Merino wrote:
> On Tue, Aug 04, 2015 at 05:33:40PM +0100, Dmitry Torokhov wrote:
> > The code in question is called outside of standard driver
> > probe()/remove() callbacks and thus will not benefit from use of devm*
> > infrastructure.
> > 
> > Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> 
> We added the devm* calls because Eduardo asked for them in the review.
> I don't have a strong opinion regarding this, I'll leave the decision
> to Eduardo.

I tried to look for his reasons, if any, but even in earliest posted
versions use devm* for allocating memory

I guess this is one of examples of devm* usage in wrong context. Given
that you, as you have to, because this is not a device driver, manually
freeing that memory with devm_kfree(), the only thing that devm_kzalloc
and friends buy you here is extra memory allocations for devres
structures and few extra cycles for maintaining them.

Thanks.

-- 
Dmitry
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Thread

[PATCH] thermal: power_allocator: do not use devm* interfaces Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-08-04 18:40 +0200
  Re: [PATCH] thermal: power_allocator: do not use devm* interfaces Javi Merino <javi.merino@arm.com> - 2015-08-05 10:30 +0200
    Re: [PATCH] thermal: power_allocator: do not use devm* interfaces Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-08-05 19:00 +0200
      Re: [PATCH] thermal: power_allocator: do not use devm* interfaces Javi Merino <javi.merino@arm.com> - 2015-08-05 19:30 +0200
        Re: [PATCH] thermal: power_allocator: do not use devm* interfaces Eduardo Valentin <edubezval@gmail.com> - 2015-08-05 20:50 +0200

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