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Date: Thu, 21 Aug 2014 15:25:26 +0200
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [PATCH v2 1/6] KVM: add kvm_arch_sched_in
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Il 21/08/2014 14:50, Radim Krčmář ha scritto:
> > > 
> > > All empty arch functions are in '.c' files, so it seems better to follow
> > > the same path.
> > > (And have one refactoring patch if GCC does not optimize this.)
> > 
> > GCC certainly does not optimize this (unless you use LTO).
> 
> I see LTO patches in next ... do we want to move every empty arch
> function into headers?

I wouldn't reject the patches.

(It would also save some lines of code, since in the headers it's common
to do "static inline void foo(void) {}" on a single line).

> (It is probably going to take LTO few years to be enabled by default.)

Indeed...  see also
http://lwn.net/SubscriberLink/608945/7763ad2aee106f1d/ from today's LWN
issue.

Paolo