Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752490Ab3FFNaP (ORCPT ); Thu, 6 Jun 2013 09:30:15 -0400 Received: from mga02.intel.com ([134.134.136.20]:22976 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751146Ab3FFNaO (ORCPT ); Thu, 6 Jun 2013 09:30:14 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,815,1363158000"; d="scan'208";a="349215595" From: Alex Shi To: akpm@linux-foundation.org Cc: sgruszka@redhat.com, fweisbec@gmail.com, alex.shi@intel.com, mingo@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/4] math64: add div64_ul Date: Thu, 6 Jun 2013 21:30:09 +0800 Message-Id: <1370525409-17123-1-git-send-email-alex.shi@intel.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1193 Lines: 37 There are div64_long() to handle the s64/long division. But no micro do u64/ul division in kernel. It is necessary on some scenarios. So add this function. Signed-off-by: Alex Shi --- include/linux/math64.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/include/linux/math64.h b/include/linux/math64.h index b8ba855..f0afe9c 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -7,6 +7,7 @@ #if BITS_PER_LONG == 64 #define div64_long(x,y) div64_s64((x),(y)) +#define div64_ul(x,y) div64_u64((x),(y)) /** * div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder @@ -48,6 +49,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor) #elif BITS_PER_LONG == 32 #define div64_long(x,y) div_s64((x),(y)) +#define div64_ul(x,y) div_u64((x),(y)) #ifndef div_u64_rem static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) -- 1.7.5.4 -- 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/