From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933466AbaD3Jxz (ORCPT ); Wed, 30 Apr 2014 05:53:55 -0400 Received: from mail-ie0-f175.google.com ([209.85.223.175]:36157 "EHLO mail-ie0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932101AbaD3Jxy (ORCPT ); Wed, 30 Apr 2014 05:53:54 -0400 From: AKASHI Takahiro To: will.deacon@arm.com Cc: viro@zeniv.linux.org.uk, eparis@redhat.com, rgb@redhat.com, catalin.marinas@arm.com, dsaxena@linaro.org, arndb@arndb.de, linux-arm-kernel@lists.infradead.org, linaro-kernel@lists.linaro.org, linux-kernel@vger.kernel.org, linux-audit@redhat.com, AKASHI Takahiro Subject: [PATCH v6 3/4] arm64: Add regs_return_value() in syscall.h Date: Wed, 30 Apr 2014 18:51:31 +0900 Message-Id: <1398851492-16345-4-git-send-email-takahiro.akashi@linaro.org> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1398851492-16345-1-git-send-email-takahiro.akashi@linaro.org> References: <1394861948-28712-1-git-send-email-takahiro.akashi@linaro.org> <1398851492-16345-1-git-send-email-takahiro.akashi@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This macro, regs_return_value, is used mainly for audit to record system call's results, but may also be used in test_kprobes.c. Acked-by: Will Deacon Acked-by: Richard Guy Briggs Signed-off-by: AKASHI Takahiro --- arch/arm64/include/asm/ptrace.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index c7ba261..a429b59 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -135,6 +135,11 @@ struct pt_regs { #define user_stack_pointer(regs) \ (!compat_user_mode(regs)) ? ((regs)->sp) : ((regs)->compat_sp) +static inline unsigned long regs_return_value(struct pt_regs *regs) +{ + return regs->regs[0]; +} + /* * Are the current registers suitable for user mode? (used to maintain * security in signal handlers) -- 1.7.9.5