From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752469Ab3FEHTw (ORCPT ); Wed, 5 Jun 2013 03:19:52 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:46608 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751703Ab3FEHTv (ORCPT ); Wed, 5 Jun 2013 03:19:51 -0400 Date: Wed, 5 Jun 2013 09:19:15 +0200 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= To: Chen Gang Cc: Russell King - ARM Linux , Geert Uytterhoeven , Linux-Arch , linux-m68k , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH v2] arch/*/asm/include/bitops.h: api issue, find_*_bit() defination are different with each other Message-ID: <20130605071915.GK23140@pengutronix.de> References: <51AE8FEF.1020809@asianux.com> <51AE903C.6010806@asianux.com> <51AE909D.9080006@asianux.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <51AE909D.9080006@asianux.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Wed, Jun 05, 2013 at 09:13:01AM +0800, Chen Gang wrote: > > For arm and m68k, they customize find_*_bit(), but the API is different > with 'generic'. > > avr32, s390, and unicore32 also customize find_*_bit(), but the API is > the same with 'generic', and the left architectures all use 'generic'. > > So need change arm and m68k related API to match the 'generic', then > all another modules can face same public API for various architectures. > > Also beautify code and comments to pass "./scripts/checkpatch.pl" > > > Signed-off-by: Chen Gang > --- > arch/arm/include/asm/bitops.h | 26 ++++++++++++++++++-------- > arch/arm/lib/findbit.S | 14 ++++++++++---- > arch/m68k/include/asm/bitops.h | 25 ++++++++++++++----------- > 3 files changed, 42 insertions(+), 23 deletions(-) > > diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h > index e691ec9..10566c8 100644 > --- a/arch/arm/include/asm/bitops.h > +++ b/arch/arm/include/asm/bitops.h > @@ -161,18 +161,28 @@ extern int _test_and_change_bit(int nr, volatile unsigned long * p); > /* > * Little endian assembly bitops. nr = 0 -> byte 0 bit 0. > */ > -extern int _find_first_zero_bit_le(const void * p, unsigned size); > -extern int _find_next_zero_bit_le(const void * p, int size, int offset); > -extern int _find_first_bit_le(const unsigned long *p, unsigned size); > -extern int _find_next_bit_le(const unsigned long *p, int size, int offset); > +extern unsigned long _find_first_zero_bit_le(const void *p, doesn't checkpatch critizise the double space in the line above? > + unsigned long size); > +extern unsigned long _find_next_zero_bit_le(const void *p, unsigned long size, > + unsigned long offset); > +extern unsigned long _find_first_bit_le(const unsigned long *p, > + unsigned long size); > +extern unsigned long _find_next_bit_le(const unsigned long *p, > + unsigned long size, > + unsigned long offset); > > /* > * Big endian assembly bitops. nr = 0 -> byte 3 bit 0. > */ > -extern int _find_first_zero_bit_be(const void * p, unsigned size); > -extern int _find_next_zero_bit_be(const void * p, int size, int offset); > -extern int _find_first_bit_be(const unsigned long *p, unsigned size); > -extern int _find_next_bit_be(const unsigned long *p, int size, int offset); > +extern unsigned long _find_first_zero_bit_be(const void *p, > + unsigned long size); > +extern unsigned long _find_next_zero_bit_be(const void *p, unsigned long size, > + unsigned long offset); > +extern unsigned long _find_first_bit_be(const unsigned long *p, > + unsigned long size); > +extern unsigned long _find_next_bit_be(const unsigned long *p, > + unsigned long size, > + unsigned long offset); > > #ifndef CONFIG_SMP > /* > diff --git a/arch/arm/lib/findbit.S b/arch/arm/lib/findbit.S > index 64f6bc1..9e3263a 100644 > --- a/arch/arm/lib/findbit.S > +++ b/arch/arm/lib/findbit.S > @@ -19,7 +19,8 @@ > > /* > * Purpose : Find a 'zero' bit > - * Prototype: int find_first_zero_bit(void *addr, unsigned int maxbit); > + * Prototype: unsigned long find_first_zero_bit(const void *p, here is another one. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |