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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 E6DBCC34026 for ; Tue, 18 Feb 2020 18:05:30 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BBF232070B for ; Tue, 18 Feb 2020 18:05:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XsSr0w3Q"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Yo8zCDNl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BBF232070B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=h/tGG4q887wxAWnSVB7Xr5eU4jKgmO6nJOfeL/udrzM=; b=XsSr0w3QHQ6ZET oANf2bXDy3FfclYEv8mi7j+qWRu+V/FF5lfiSC2uSwqwqq7ck05AbQpZHxbVG6XOqWeRVdz8MxuP8 jaGv1xQQSPONPxkmC5pZl26rg4e0D9KWfaKbseXjF2cVK4KvEGWAWDpwd4otOavnkLYalDHroKSfJ cOzfHXEmFMn8JzofI3exS5aKtOmKZUaoqH60XXmTaVNbwyVoK4Ye3h8RzfD60EfuNdKuI1OfGT80e l/rrmF229iM4sMkHe/BRnxUyWLw0+0WJ7AMrK5wsfIH5p/gsGIMuW3wuEqFYP6v5vOlIKavjvV+Ss LqiWItohgTbnpPvIGEhQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j47FM-0004O8-S2; Tue, 18 Feb 2020 18:05:24 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j47FK-0004Nh-07 for linux-arm-kernel@lists.infradead.org; Tue, 18 Feb 2020 18:05:23 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 9B3C22070B; Tue, 18 Feb 2020 18:05:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582049119; bh=+78s0epyDizPUB72JjGEwpBoBwUemjhbbETlNbB0BFk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Yo8zCDNlaU14Ju7Lv/exhU3uMTFdXVSkLxy+ezDxyXBRpJH+Rc9NHBUxeCfLmnQPr m9avdUPmKg8vp8BtgM6rcZIiw5Ht5PEbSunJpB4YhsYRRY5VNa62ENMxTH0/EfQb8E ubWWRAtvF+lcjItwpLK2fqOXHR0YJfCxJ+c7H+8g= Date: Tue, 18 Feb 2020 18:05:15 +0000 From: Will Deacon To: Sami Tolvanen Subject: Re: [PATCH] arm64: lse: Fix LSE atomics with LLVM Message-ID: <20200218180514.GA2655@willie-the-truck> References: <20200218164906.35685-1-vincenzo.frascino@arm.com> <20200218165451.GE1133@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200218_100522_061599_C8F7424E X-CRM114-Status: GOOD ( 11.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Catalin Marinas , Will Deacon , clang-built-linux , amit.kachhap@arm.com, Vincenzo Frascino , linux-arm-kernel Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Feb 18, 2020 at 10:02:24AM -0800, Sami Tolvanen wrote: > On Tue, Feb 18, 2020 at 8:54 AM Will Deacon wrote: > > > -#define __LSE_PREAMBLE ".arch armv8-a+lse\n" > > > +#define __LSE_PREAMBLE ".arch_extension lse\n" > > > > I'm ok with this, but Sami assumedly changed this for a reason in > > e0d5896bd356cd ("arm64: lse: fix LSE atomics with LLVM's integrated > > assembler"). > > Correct, I changed this because clang's integrated assembler wasn't > happy with .arch_extension lse at the time. However, it looks like > current versions of clang don't have this problem, so this change > looks good to me. > > Tested-by: Sami Tolvanen Cheers, I'll queue this with your tag. Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel