From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933025AbcDNQot (ORCPT ); Thu, 14 Apr 2016 12:44:49 -0400 Received: from foss.arm.com ([217.140.101.70]:44398 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933003AbcDNQos (ORCPT ); Thu, 14 Apr 2016 12:44:48 -0400 Date: Thu, 14 Apr 2016 17:44:47 +0100 From: Will Deacon To: Suzuki K Poulose Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, marc.zyngier@arm.com, ynorov@caviumnetworks.com Subject: Re: [PATCH v3 6/7] arm64: Add a wrapper for personality() syscall Message-ID: <20160414164446.GI4584@arm.com> References: <1459445255-15653-1-git-send-email-suzuki.poulose@arm.com> <1459445255-15653-7-git-send-email-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1459445255-15653-7-git-send-email-suzuki.poulose@arm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 31, 2016 at 06:27:34PM +0100, Suzuki K Poulose wrote: > In order to prevent setting PER_LINUX32 on systems without > 32bit EL0 support, add a wrapper for personality() syscall. > > Tested-by: Yury Norov > Signed-off-by: Suzuki K Poulose > --- > arch/arm64/kernel/sys.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c > index 75151aa..817d860 100644 > --- a/arch/arm64/kernel/sys.c > +++ b/arch/arm64/kernel/sys.c > @@ -36,11 +36,17 @@ asmlinkage long sys_mmap(unsigned long addr, unsigned long len, > return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); > } > > +SYSCALL_DEFINE1(arm64_personality, unsigned int, personality) > +{ > + return sys_personality(personality); > +} > + > /* > * Wrappers to pass the pt_regs argument. > */ > asmlinkage long sys_rt_sigreturn_wrapper(void); > #define sys_rt_sigreturn sys_rt_sigreturn_wrapper > +#define sys_personality sys_arm64_personality You can merge this in with the subsequent patch, since it doesn't do anything on its own. Will