From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from db9outboundpool.messaging.microsoft.com (mail-db9lp0253.outbound.messaging.microsoft.com [213.199.154.253]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "MSIT Machine Auth CA 2" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 770C62C0312 for ; Fri, 12 Jul 2013 00:15:34 +1000 (EST) Date: Thu, 11 Jul 2013 09:15:17 -0500 From: Scott Wood Subject: Re: [PATCH 1/4 V2] powerpc/85xx: Add support for 85xx cpu type detection To: David Laight References: <1373441941-32650-1-git-send-email-Haijun.Zhang@freescale.com> <1373492893.8183.236@snotra> In-Reply-To: (from David.Laight@ACULAB.COM on Thu Jul 11 03:43:35 2013) Message-ID: <1373552117.8183.243@snotra> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; delsp=Yes; format=Flowed Cc: Zhao Chenhui , linux-mmc@vger.kernel.org, r39252@freescale.com, AFLEMING@freescale.com, X.Xie@freescale.com, cbouatmailru@gmail.com, cjb@laptop.org, linuxppc-dev@lists.ozlabs.org, Haijun Zhang List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 07/11/2013 03:43:35 AM, David Laight wrote: > > > +#define IS_SVR_REV(svr, maj, min) \ > > > + ((SVR_MAJ(svr) =3D=3D (maj)) && (SVR_MIN(svr) =3D=3D (min))) > > > > I don't think IS_SVR_REV is needed. Callers can just do "if > > (SVR_REV(svr) =3D=3D 0x30)" or whatever, especially since we're relying= =20 > on > > them to do this for greater/less than comparisons. >=20 > Not only that, I'd guess that 'maj' and 'min' are likely to be > constants - so you'd want to combine them and compare against 'svr' > rather than have two conditionals. Yes, that's what I meant -- 0x30 would represent revision 3.0. -Scott=