Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030436AbWBNFYZ (ORCPT ); Tue, 14 Feb 2006 00:24:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030457AbWBNFWU (ORCPT ); Tue, 14 Feb 2006 00:22:20 -0500 Received: from ns.miraclelinux.com ([219.118.163.66]:9935 "EHLO mail01.miraclelinux.com") by vger.kernel.org with ESMTP id S1030365AbWBNFFD (ORCPT ); Tue, 14 Feb 2006 00:05:03 -0500 Message-Id: <20060214050443.468528000@localhost.localdomain> References: <20060214050351.252615000@localhost.localdomain> Date: Tue, 14 Feb 2006 14:04:00 +0900 From: Akinobu Mita To: linux-kernel@vger.kernel.org Cc: akpm@osdl.org, Russell King , Ian Molton , David Howells , Hirokazu Takata , Greg Ungerer , linux-mips@linux-mips.org, parisc-linux@parisc-linux.org, sparclinux@vger.kernel.org, ultralinux@vger.kernel.org, Miles Bader , Akinobu Mita Subject: [patch 09/47] generic ffz() Content-Disposition: inline; filename=ffz-bitops.patch Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1080 Lines: 36 This patch introduces the C-language equivalent of the function: unsigned long ffz(unsigned long word); In include/asm-generic/bitops/ffz.h This code largely copied from: include/asm-parisc/bitops.h Signed-off-by: Akinobu Mita include/asm-generic/bitops/ffz.h | 12 ++++++++++++ 1 files changed, 12 insertions(+) Index: 2.6-rc/include/asm-generic/bitops/ffz.h =================================================================== --- /dev/null +++ 2.6-rc/include/asm-generic/bitops/ffz.h @@ -0,0 +1,12 @@ +#ifndef _ASM_GENERIC_BITOPS_FFZ_H_ +#define _ASM_GENERIC_BITOPS_FFZ_H_ + +/* + * ffz - find first zero in word. + * @word: The word to search + * + * Undefined if no zero exists, so code should check against ~0UL first. + */ +#define ffz(x) __ffs(~(x)) + +#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */ -- - 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/