Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751753AbXAPWrH (ORCPT ); Tue, 16 Jan 2007 17:47:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751683AbXAPWrH (ORCPT ); Tue, 16 Jan 2007 17:47:07 -0500 Received: from caffeine.uwaterloo.ca ([129.97.134.17]:49372 "EHLO caffeine.csclub.uwaterloo.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751753AbXAPWrG (ORCPT ); Tue, 16 Jan 2007 17:47:06 -0500 Date: Tue, 16 Jan 2007 17:47:05 -0500 To: takada Cc: linux-kernel@vger.kernel.org Subject: Re: fix typo in geode_configre()@cyrix.c Message-ID: <20070116224705.GJ17269@csclub.uwaterloo.ca> References: <20070109.184156.260789378.takada@mbf.nifty.com> <20070109173348.GF17269@csclub.uwaterloo.ca> <20070117.013835.51856830.takada@mbf.nifty.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070117.013835.51856830.takada@mbf.nifty.com> User-Agent: Mutt/1.5.9i From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1817 Lines: 49 On Wed, Jan 17, 2007 at 01:38:35AM +0900, takada wrote: > You are right. I agree to your comment. These variables are needless. > I made a patch again. > > diff -Narup linux-2.6.19.orig/arch/i386/kernel/cpu/cyrix.c linux-2.6.19/arch/i386/kernel/cpu/cyrix.c > --- linux-2.6.19.orig/arch/i386/kernel/cpu/cyrix.c 2006-11-30 06:57:37.000000000 +0900 > +++ linux-2.6.19/arch/i386/kernel/cpu/cyrix.c 2007-01-16 19:55:05.000000000 +0900 > @@ -161,19 +161,15 @@ static void __cpuinit set_cx86_inc(void) > static void __cpuinit geode_configure(void) > { > unsigned long flags; > - u8 ccr3, ccr4; > local_irq_save(flags); > > /* Suspend on halt power saving and enable #SUSP pin */ > setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); > > - ccr3 = getCx86(CX86_CCR3); > - setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* Enable */ > + setCx86(CX86_CCR3, (getCx86(CX86_CCR3) & 0x0f) | 0x10); /* Enable */ > > - ccr4 = getCx86(CX86_CCR4); > - ccr4 |= 0x38; /* FPU fast, DTE cache, Mem bypass */ > - > - setCx86(CX86_CCR3, ccr3); > + /* FPU fast, DTE cache, Mem bypass */ > + setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x30); Actually is it possible that the original intent was: ccr3 = getCx86(CX86_CCR3); setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* Enable */ /* enable advanced register access? */ ccr4 = getCx86(CX86_CCR4); ccr4 |= 0x38; /* FPU fast, DTE cache, Mem bypass */ setCx86(CX86_CCR4, ccr4); setCx86(CX86_CCR3, ccr3); /* restore ccr3 register */ Seems something similar with ccr3 was taking place elsewhere in the function. -- Len Sorensen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/