linux-kernel - Re: [PATCH 2/5] x86/jump-label: Do not bother updating nops if they are correct

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Message-ID: <1327696921.22710.132.camel@gandalf.stny.rr.com>
Date:	Fri, 27 Jan 2012 15:42:01 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Jason Baron <jbaron@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 2/5] x86/jump-label: Do not bother updating nops if they
 are correct

On Fri, 2012-01-27 at 12:34 -0800, Andrew Morton wrote:

> > +	if (!once) {
> > +		unsigned char default_nop[] = { JUMP_LABEL_INIT_NOP };
> 
> const.  It generates less code.  With my compiler version, at least. 
> That was a bit dumb of it, given that memcmp() is declared to take
> const args.

OK will update,

Thanks!

-- Steve



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