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=-8.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 2882FC433DF for ; Mon, 13 Jul 2020 12:26:58 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 E583220738 for ; Mon, 13 Jul 2020 12:26:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="xNoj6laK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E583220738 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=dn3kCLv8w31SYQfFV0CC18WMG2uskyWZG3ytp2giVnQ=; b=xNoj6laKhwS5j2tW6xI6Y8jr2 qwTktBzbW9VPaaQY3Bzy3XNKSrNf9ILGAeD72Hk9uPaEcE/jQdGwYn1EfvQJxwrWHvU43ZsTkirzk MPhNZ72IT6j1BgtKHEfKCTpSYFv22CXm0W5Zv2m1n57Qt6cyPgULXnG0mfyWdtRAbpnUGOiS3JTL5 fSNLAQkSVZDl9Cke+0ds2X8By0Ob1eOhJOWDZp2RsSQNuz7e5GKhrF89gXxTSLifI9/zFyxhUUNp/ q8qYKJ9fnNjfaT0uJkugv7kBF66vV0BXz7MAE0/BpWBVr6X7c7oKwb6+k1BExvnxQA4TDVuHR3PY5 oPaAnwc/g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1juxXh-0007n5-QJ; Mon, 13 Jul 2020 12:26:45 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1juxXe-0007kw-5I for linux-riscv@lists.infradead.org; Mon, 13 Jul 2020 12:26:43 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 78D3930E; Mon, 13 Jul 2020 05:26:40 -0700 (PDT) Received: from lakrids.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0F05E3F887; Mon, 13 Jul 2020 05:26:38 -0700 (PDT) Date: Mon, 13 Jul 2020 13:26:37 +0100 From: Mark Rutland To: Christoph Hellwig Subject: Re: [PATCH 5/6] uaccess: add force_uaccess_{begin,end} helpers Message-ID: <20200713122636.GB51007@lakrids.cambridge.arm.com> References: <20200710135706.537715-1-hch@lst.de> <20200710135706.537715-6-hch@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200710135706.537715-6-hch@lst.de> User-Agent: Mutt/1.11.1+11 (2f07cb52) (2018-12-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200713_082642_812578_5751D3C7 X-CRM114-Status: GOOD ( 12.65 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Nick Hu , linux-kernel@vger.kernel.org, Palmer Dabbelt , Greentime Hu , Paul Walmsley , Andrew Morton , Vincent Chen , Linus Torvalds , linux-riscv@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Fri, Jul 10, 2020 at 03:57:05PM +0200, Christoph Hellwig wrote: > Add helpers to wraper the get_fs/set_fs magic for undoing any damange > done by set_fs(KERNEL_DS). There is no real functional benefit, but this > documents the intent of these calls better, and will allow stubbing the > functions out easily for kernels builds that do not allow address space > overrides in the future. > > Signed-off-by: Christoph Hellwig > --- > arch/arm64/kernel/sdei.c | 2 +- > arch/m68k/include/asm/tlbflush.h | 12 ++++++------ > arch/mips/kernel/unaligned.c | 27 +++++++++++++-------------- > arch/nds32/mm/alignment.c | 7 +++---- > arch/sh/kernel/traps_32.c | 18 ++++++++---------- > drivers/firmware/arm_sdei.c | 5 ++--- > include/linux/uaccess.h | 18 ++++++++++++++++++ > kernel/events/callchain.c | 5 ++--- > kernel/events/core.c | 5 ++--- > kernel/kthread.c | 5 ++--- > kernel/stacktrace.c | 5 ++--- > mm/maccess.c | 22 ++++++++++------------ > 12 files changed, 69 insertions(+), 62 deletions(-) The perf core and arm64/sdei bits look sound. FWIW: Acked-by: Mark Rutland Mark. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv