From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 24 May 2018 15:00:17 +0200 (CEST) Received: from mail.kernel.org ([198.145.29.99]:44202 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23990475AbeEXNALUtrAH (ORCPT ); Thu, 24 May 2018 15:00:11 +0200 Received: from jamesdev (jahogan.plus.com [212.159.75.221]) (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 9244820899; Thu, 24 May 2018 13:00:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1527166804; bh=KNuP6EmkbB1lqGvuJ6MtBIFEI8sEIjbBP5QFO2pMT9c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rjt7Ty9XXdVvvpbdLjOXeUJl3tGiehXQ4c02FqbM9xz0n8qFWCSX5JqXMXFPaLL0G bJtmey6IUKNhkLOg6mRR965Rd3xqKmk1En8E0wJLojXZ2tQ0iCHCc7SIXBDqcUqXU0 Een8gfc+Vb0/MoBxj/+rvtbD9UXg51zehWfPnvRs= Date: Thu, 24 May 2018 14:00:00 +0100 From: James Hogan To: "Maciej W. Rozycki" Cc: Ralf Baechle , linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] MIPS: ptrace: Fix PTRACE_PEEKUSR requests for 64-bit FGRs Message-ID: <20180524125959.GB24269@jamesdev> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3uo+9/B/ebqu+fSQ" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.5 (2018-04-13) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 64007 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: jhogan@kernel.org Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips --3uo+9/B/ebqu+fSQ Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, May 16, 2018 at 04:39:58PM +0100, Maciej W. Rozycki wrote: > Use 64-bit accesses for 64-bit floating-point general registers with=20 > PTRACE_PEEKUSR, removing the truncation of their upper halves in the=20 > FR=3D1 mode, caused by commit bbd426f542cb ("MIPS: Simplify FP context=20 > access"), which inadvertently switched them to using 32-bit accesses. >=20 > The PTRACE_POKEUSR side is fine as it's never been broken and continues= =20 > using 64-bit accesses. >=20 > Cc: # 3.19+ should that be 3.15+? Cheers James --3uo+9/B/ebqu+fSQ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEARYIAB0WIQS7lRNBWUYtqfDOVL41zuSGKxAj8gUCWwa3TgAKCRA1zuSGKxAj 8sDvAP9b5xyZTvJTRL1ODiGao0nXlZE58CbdZGfh08Ld5eRiaAEAysXgF3YS4+nm +cHSReh8L6LfjKCPbHrOsWEht17wgQY= =+Mrn -----END PGP SIGNATURE----- --3uo+9/B/ebqu+fSQ--