Subject: Re: [PATCH net-next] fast_hash: clobber registers correctly for inline function use

From: Hannes Frederic Sowa <[email-masked]>
Date: Fri, 14 Nov 2014 21:42:13 +0100

On Fr, 2014-11-14 at 11:02 -0800, Cong Wang wrote:
> 
> I am wondering, compare with alternative call, how slower is just
> testing
> cpu_has_xmm4_2?

I can test, but cpu_has_xmm4_2 expands into quite some code. I don't
know if indirect function call or a test of this flag is faster. I'll
test this.

Bye,
Hannes