From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Wed, 1 Nov 2017 09:40:16 +0000 Subject: [PATCH v4 00/12] arm+arm64: vdso unification to lib/vdso/ In-Reply-To: <64439dc3-909d-722f-68c3-d8e20e96ed9a@redhat.com> References: <20171031183022.80775-1-salyzyn@android.com> <64439dc3-909d-722f-68c3-d8e20e96ed9a@redhat.com> Message-ID: <20171101094015.GA14665@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Oct 31, 2017 at 06:04:19PM -0400, Jon Masters wrote: > On 10/31/2017 02:30 PM, Mark Salyzyn wrote: > > Take an effort to recode the arm64 vdso code from assembler to C > > previously submitted by Andrew Pinski , rework > > it for use in both arm and arm64, overlapping any optimizations > > for each architecture. But instead of landing it in arm64, land the > > result into lib/vdso and unify both implementations to simplify > > future maintenance. This will act as the basis for implementing > > arm64 vdso32 in the future. > > In the original patch series, our QE folks found a problem that lead to > its revertion from our internal trees. I've pinged them to check this > latest version and followup if we see the same failures now. Could you elaborate a bit on the problem you found, please? Even if you don't see it with this series, it doesn't mean it isn't lurking somewhere else (potentially even in mainline!). Will From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754498AbdKAJkP (ORCPT ); Wed, 1 Nov 2017 05:40:15 -0400 Received: from foss.arm.com ([217.140.101.70]:44756 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754375AbdKAJkO (ORCPT ); Wed, 1 Nov 2017 05:40:14 -0400 Date: Wed, 1 Nov 2017 09:40:16 +0000 From: Will Deacon To: Jon Masters Cc: Mark Salyzyn , linux-kernel@vger.kernel.org, James Morse , Russell King , Catalin Marinas , Andy Lutomirski , Dmitry Safonov , John Stultz , Mark Rutland , Laura Abbott , Kees Cook , Ard Biesheuvel , Andy Gross , Kevin Brodsky , Andrew Pinski , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v4 00/12] arm+arm64: vdso unification to lib/vdso/ Message-ID: <20171101094015.GA14665@arm.com> References: <20171031183022.80775-1-salyzyn@android.com> <64439dc3-909d-722f-68c3-d8e20e96ed9a@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <64439dc3-909d-722f-68c3-d8e20e96ed9a@redhat.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 Tue, Oct 31, 2017 at 06:04:19PM -0400, Jon Masters wrote: > On 10/31/2017 02:30 PM, Mark Salyzyn wrote: > > Take an effort to recode the arm64 vdso code from assembler to C > > previously submitted by Andrew Pinski , rework > > it for use in both arm and arm64, overlapping any optimizations > > for each architecture. But instead of landing it in arm64, land the > > result into lib/vdso and unify both implementations to simplify > > future maintenance. This will act as the basis for implementing > > arm64 vdso32 in the future. > > In the original patch series, our QE folks found a problem that lead to > its revertion from our internal trees. I've pinged them to check this > latest version and followup if we see the same failures now. Could you elaborate a bit on the problem you found, please? Even if you don't see it with this series, it doesn't mean it isn't lurking somewhere else (potentially even in mainline!). Will