Re: [PATCH v2 22/25] powerpc32: move xxxxx_dcache_range() functions inline

[Christophe Leroy]

Le 23/09/2015 00:34, Scott Wood a Ãcrit :
> On Tue, 2015-09-22 at 22:57 +0200, Christophe Leroy wrote:
> > >Here is what I get in asm. First one is with "if (i) mb();". We see gcc
> > >puts a beqlr. This is the form that is closest to what we had in the
> > >former misc_32.S
> > >Second one if with "mb()". Here we get a branch to sync for a useless sync
> I was more concerned with keeping the code simple than the asm output.
Right, but is that so complicated to say: if we did nothing in the loop, 
no need to sync ?

Christophe
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