From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65A3FC6778F for ; Wed, 25 Jul 2018 15:55:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 26B7F20891 for ; Wed, 25 Jul 2018 15:55:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26B7F20891 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729369AbeGYRHf (ORCPT ); Wed, 25 Jul 2018 13:07:35 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:41302 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728568AbeGYRHe (ORCPT ); Wed, 25 Jul 2018 13:07:34 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2092880D; Wed, 25 Jul 2018 08:55:18 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 560FE3F575; Wed, 25 Jul 2018 08:55:16 -0700 (PDT) Date: Wed, 25 Jul 2018 16:55:13 +0100 From: Dave Martin To: Will Deacon Cc: linux-kernel@vger.kernel.org, arnd@arndb.de, oleg@redhat.com, linux@dominikbrodowski.net, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, steve.mcintyre@arm.com, linux-arm-kernel@lists.infradead.org, ebiederm@xmission.com Subject: Re: [PATCH 2/2] arm64: compat: Provide definition for COMPAT_SIGMINSTKSZ Message-ID: <20180725155513.GS4240@e103592.cambridge.arm.com> References: <1532526312-26993-1-git-send-email-will.deacon@arm.com> <1532526312-26993-3-git-send-email-will.deacon@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1532526312-26993-3-git-send-email-will.deacon@arm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 25, 2018 at 02:45:12PM +0100, Will Deacon wrote: > arch/arm/ defines a SIGMINSTKSZ of 2k, so we should use the same value > for compat tasks. > > Cc: Arnd Bergmann > Cc: Dominik Brodowski > Cc: "Eric W. Biederman" > Cc: Andrew Morton > Cc: Al Viro > Cc: Oleg Nesterov > Reported-by: Steve McIntyre > Signed-off-by: Will Deacon Reviewed-by: Dave Martin > --- > arch/arm64/include/asm/compat.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h > index 1a037b94eba1..cee28a05ee98 100644 > --- a/arch/arm64/include/asm/compat.h > +++ b/arch/arm64/include/asm/compat.h > @@ -159,6 +159,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr) > } > > #define compat_user_stack_pointer() (user_stack_pointer(task_pt_regs(current))) > +#define COMPAT_MINSIGSTKSZ 2048 > > static inline void __user *arch_compat_alloc_user_space(long len) > { > -- > 2.1.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel