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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 1947CC282D7 for ; Mon, 11 Feb 2019 15:38:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D1D28222A7 for ; Mon, 11 Feb 2019 15:38:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549899519; bh=sl9CIDIWQZhCQwIFpV0wp4O/S2kVhBAM2PZA+ev16F8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=MCGQEM9GPEmomvEtyFC6gw2wiE0LVdSmgbBNbk5g5EEKWo8ftICQM5pr4xFsej2Tb qSkuXtTN/eGqsWjq6znYp5ROqChRNYAWRW/mVStIMZT05M7DvbMzQ6N8Q4nQn8yQAp 4Q1Uu+5rzlXANxiWOKdLm7pSTnTdelJMJNmCP2WE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388012AbfBKOuE (ORCPT ); Mon, 11 Feb 2019 09:50:04 -0500 Received: from mail.kernel.org ([198.145.29.99]:35776 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387610AbfBKOuD (ORCPT ); Mon, 11 Feb 2019 09:50:03 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D78C120700; Mon, 11 Feb 2019 14:50:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549896603; bh=sl9CIDIWQZhCQwIFpV0wp4O/S2kVhBAM2PZA+ev16F8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zj/0OgAQpArBRgCP+QvNxvmhEbIh4k/PU2GVoCqizugBTT+ADjutwPHTOyaK5N1c6 70EG36tibn6CRWELDtidC4qAc3wiaUSGiAD4QJYA8UTn2Gh2JRASGOXZ5Vrb/GRST3 9PGUGO1REz/EJgrcfzPJoXfYueGCIDPO8eFyNGpk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dave Martin , Will Deacon , Sasha Levin Subject: [PATCH 4.19 239/313] arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition Date: Mon, 11 Feb 2019 15:18:39 +0100 Message-Id: <20190211141909.402426613@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190211141852.749630980@linuxfoundation.org> References: <20190211141852.749630980@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit ee1b465b303591d3a04d403122bbc0d7026520fb ] SVE_PT_REGS_OFFSET is supposed to indicate the offset for skipping over the ptrace NT_ARM_SVE header (struct user_sve_header) to the start of the SVE register data proper. However, currently SVE_PT_REGS_OFFSET is defined in terms of struct sve_context, which is wrong: that structure describes the SVE header in the signal frame, not in the ptrace regset. This patch fixes the definition to use the ptrace header structure struct user_sve_header instead. By good fortune, the two structures are the same size anyway, so there is no functional or ABI change. Signed-off-by: Dave Martin Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- arch/arm64/include/uapi/asm/ptrace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h index 98c4ce55d9c3..ad64d2c92ef5 100644 --- a/arch/arm64/include/uapi/asm/ptrace.h +++ b/arch/arm64/include/uapi/asm/ptrace.h @@ -130,7 +130,7 @@ struct user_sve_header { /* Offset from the start of struct user_sve_header to the register data */ #define SVE_PT_REGS_OFFSET \ - ((sizeof(struct sve_context) + (SVE_VQ_BYTES - 1)) \ + ((sizeof(struct user_sve_header) + (SVE_VQ_BYTES - 1)) \ / SVE_VQ_BYTES * SVE_VQ_BYTES) /* -- 2.19.1