Re: [RFC PATCH] device: Add kernel standard devm_k.alloc functions

[Tejun Heo]

Hello,

On Wed, Oct 09, 2013 at 12:04:42AM -0700, Joe Perches wrote:
> > > > > 	devm_kzalloc
> > > > > 	devm_kcalloc
> > > > > 	devm_kmalloc_array
> > > > > 
> > > > > Add gfp.h to device.h for the newly added static inlines.
...
> Unless Tejun has an objection soon, yes.

Do we really need devm_kmalloc_array() for devm interface?  The
reasonsing behind only having kzalloc was that it's not worthwhile
skipping zeroing for stuff happening during driver init/exit paths.
The resource management overhead itself is already significant and
unscalable compared to the raw cost of alloc/free and the interface
isn't supposed to be used in super-hot paths.  Shouldn't
devm_kzalloc() and devm_kcalloc() be enough?

Thanks.

-- 
tejun
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