From mboxrd@z Thu Jan 1 00:00:00 1970 From: sboyd@codeaurora.org (Stephen Boyd) Date: Fri, 08 Nov 2013 10:51:39 -0800 Subject: [PATCH] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions In-Reply-To: <527D15E8.6070802@codeaurora.org> References: <1383852042-10780-1-git-send-email-sboyd@codeaurora.org> <527D15E8.6070802@codeaurora.org> Message-ID: <527D32BB.40607@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 11/08/13 08:48, Christopher Covington wrote: > Hi Stephen, > > On 11/07/2013 02:20 PM, Stephen Boyd wrote: >> If we're running on a v7 ARM CPU, detect if the CPU supports the >> sdiv/udiv instructions and replace the signed and unsigned >> division library functions with an sdiv/udiv instruction. > [...] > >> +++ b/arch/arm/lib/div-v7.c >> @@ -0,0 +1,58 @@ >> +/* Copyright (c) 2013, The Linux Foundation. All rights reserved. >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License version 2 and >> + * only version 2 as published by the Free Software Foundation. >> + * >> + * This program is distributed in the hope that it will be useful, >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. >> + */ >> + >> +#include >> + >> +extern int ___aeabi_idiv(int, int); >> +extern unsigned ___aeabi_uidiv(int, int); > Why are the input parameters signed? Copy pasta. Fixed thanks. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation