From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f182.google.com (mail-pd0-f182.google.com [209.85.192.182]) by kanga.kvack.org (Postfix) with ESMTP id 4384C6B0069 for ; Sun, 16 Nov 2014 21:39:10 -0500 (EST) Received: by mail-pd0-f182.google.com with SMTP id g10so5168267pdj.27 for ; Sun, 16 Nov 2014 18:39:09 -0800 (PST) Received: from cnbjrel02.sonyericsson.com (cnbjrel02.sonyericsson.com. [219.141.167.166]) by mx.google.com with ESMTPS id gn9si33992153pac.127.2014.11.16.18.39.07 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 16 Nov 2014 18:39:08 -0800 (PST) From: "Wang, Yalin" Date: Mon, 17 Nov 2014 10:38:58 +0800 Subject: RE: [RFC V6 2/3] arm:add bitrev.h file to support rbit instruction Message-ID: <35FD53F367049845BC99AC72306C23D103E688B313C6@CNBJMBX05.corpusers.net> References: <35FD53F367049845BC99AC72306C23D103E010D18265@CNBJMBX05.corpusers.net> <35FD53F367049845BC99AC72306C23D103E010D18266@CNBJMBX05.corpusers.net> <20141030120127.GC32589@arm.com> <20141030135749.GE32589@arm.com> <35FD53F367049845BC99AC72306C23D103E010D18272@CNBJMBX05.corpusers.net> <35FD53F367049845BC99AC72306C23D103E010D18273@CNBJMBX05.corpusers.net> <35FD53F367049845BC99AC72306C23D103E010D18275@CNBJMBX05.corpusers.net> <20141113235322.GC4042@n2100.arm.linux.org.uk> <35FD53F367049845BC99AC72306C23D103E010D1829B@CNBJMBX05.corpusers.net> <20141114095812.GG4042@n2100.arm.linux.org.uk> In-Reply-To: <20141114095812.GG4042@n2100.arm.linux.org.uk> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: 'Russell King - ARM Linux' Cc: 'Will Deacon' , 'Ard Biesheuvel' , "'linux-kernel@vger.kernel.org'" , "'akinobu.mita@gmail.com'" , "'linux-mm@kvack.org'" , 'Joe Perches' , "'linux-arm-kernel@lists.infradead.org'" > From: Russell King - ARM Linux [mailto:linux@arm.linux.org.uk] > Sent: Friday, November 14, 2014 5:58 PM > To: Wang, Yalin > Cc: 'Will Deacon'; 'Ard Biesheuvel'; 'linux-kernel@vger.kernel.org'; > 'akinobu.mita@gmail.com'; 'linux-mm@kvack.org'; 'Joe Perches'; 'linux-arm= - > kernel@lists.infradead.org' > Subject: Re: [RFC V6 2/3] arm:add bitrev.h file to support rbit instructi= on > > > Is it possible to build a kernel that support both CPU_V6 and CPU_V7? >=20 > Absolutely it is. >=20 > > I mean in Kconfig, CPU_V6 =3D y and CPU_V7 =3D y ? >=20 > Yes. >=20 > > If there is problem like you said, > > How about this solution: > > select HAVE_ARCH_BITREVERSE if ((CPU_V7M || CPU_V7) && !CPU_V6) >=20 > That would work. >=20 OK, I will submit a patch for this change. > > For this patch, > > I just cherry-pick from Joe, > > If you are not responsible for this part, I will submit to the > > maintainers for these patches . > > Sorry for that . >=20 > I think you need to discuss with Joe how Joe would like his patches handl= ed. > However, it seems that Joe already sent his patches to the appropriate > maintainers, and they have been applying those patches themselves. >=20 > Since your generic ARM changes depend on these patches being accepted fir= st, > this means is that I can't apply the generic ARM changes until those othe= r > patches have hit mainline, otherwise things are going to break. So, when > you come to submit the latest set of patches to the patch system, please = do > so only after these dependent patches have been merged into mainline so > that they don't get accidentally applied before hand and break the two > drivers that Joe mentioned. Joe has submitted patches to maintainers, So we need wait for them to be accepted . Thanks -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org