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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 DF4EAC10F06 for ; Tue, 12 Mar 2019 00:29:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A35F9214AF for ; Tue, 12 Mar 2019 00:29:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552350587; bh=Spbq4MUY2xUjcMcLIV/0wT2d7SS855QEoK1R79XxF+Q=; h=Date:From:To:Subject:References:In-Reply-To:List-ID:From; b=rp9SJ1yiehtgBG338b2mHdhjuygmsM4As90Z0za4umJlyY5QxUulBKrqglyMvd9UT IjMj/mn38tR+dnMoxh65FHBijhCzdbwfXEVSR1EskgWDsK9dfFZD6sdZzRkzH1d/pE 6c7I+NtrzTOQrWSF2rb760evF8br4+uffR+If7+E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726562AbfCLA3q (ORCPT ); Mon, 11 Mar 2019 20:29:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:35222 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725880AbfCLA3q (ORCPT ); Mon, 11 Mar 2019 20:29:46 -0400 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (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 5F4722087F; Tue, 12 Mar 2019 00:29:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552350585; bh=Spbq4MUY2xUjcMcLIV/0wT2d7SS855QEoK1R79XxF+Q=; h=Date:From:To:Subject:References:In-Reply-To:From; b=fKUpXWLTEUR1bPGt4qB3dmxrYPhfYju/zZsSN/9nx+RqL8RNrloouosCaEVKBBcVN YkMyHd4Qsjz8/7LkFk/mZwLqLsEQBAtQ+tAF9B8mdnsZoEr0bkBZ8MVnh2gciL+Omp cV6pjcbbyJVKNk1216HXTXOF0DQkhU0gtZ2N39JQ= Date: Mon, 11 Mar 2019 20:29:44 -0400 From: Sasha Levin To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Borislav Petkov , Ard Biesheuvel , Russ Anderson , Dimitri Sivanich , Steve Wahl , Mike Travis , Andy Shevchenko , Bhupesh Sharma , Darren Hart , "H. Peter Anvin" , Ingo Molnar , linux-efi , platform-driver-x86@vger.kernel.org, Thomas Gleixner , x86-ml Subject: Re: Please revert 7212e37cbdf9 from 4.4-stable Message-ID: <20190312002944.GL158926@sasha-vm> References: <20190311134814.GC30367@sarge.linuxathome.me> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20190311134814.GC30367@sarge.linuxathome.me> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 11, 2019 at 01:48:14PM +0000, Hedi Berriche wrote: >Hi Greg, > >Could you please revert > > 7212e37cbdf9 x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls > >from 4.4-stable? > >In 4.4-stable efi_runtime_lock as defined in drivers/firmware/efi/runtime-wrappers.c >is a spinlock (given it predates commit dce48e351c0d) and commit > > f331e766c4be x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls > >which 7212e37cbdf9 is a backport of, needs it to be a semaphore. I've queued up the revert. I'm not sure how it ended up on 4.4 to begin with; sorry about that and thank you. -- Thanks, Sasha