Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8CE09C4332F for ; Mon, 13 Dec 2021 09:04:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233445AbhLMJEM (ORCPT ); Mon, 13 Dec 2021 04:04:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229725AbhLMJEK (ORCPT ); Mon, 13 Dec 2021 04:04:10 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2A29C06173F; Mon, 13 Dec 2021 01:04:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=E1tfJAJEo2ii3UUfFc4sMr4HPboIoKFc3I0QAP/7CAY=; b=aIrkrI+KqL28ZA6400YDIn5IRt l/K5scmwRddqvQ4sE0ypmZYXJJlYitkGODVJZb+y0TgOVv54m15f3u+j3oQp6CC7XNdvtxL6zewm5 wVLwzhTVZ0guWNcDSliGheB19UtdIGNOf8Edd9tenuethftMe2lSvWjMDGO5BIVsYw60DVxcIJXg9 8D9jlXCJajiE7uuBy01ct8hzHIr96VtnyABQb2KZDfCcEK6qALNDGh6d7/eoKvaptsKAfe4c1Pf0O DZ5/9P6Hm20Gs2DvIGP1uc4PJK+LjSecS4BbZPZ+UQm524ZMKszJ/5wNQbln7cKISDMGA1UQglJ/u ZRpyi5wQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mwhFf-008UXb-Be; Mon, 13 Dec 2021 09:04:07 +0000 Date: Mon, 13 Dec 2021 01:04:07 -0800 From: Christoph Hellwig To: ira.weiny@intel.com Cc: David Airlie , Daniel Vetter , Patrik Jakobsson , Rob Clark , Sean Paul , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Subject: Re: [PATCH 1/7] drm/i915: Replace kmap() with kmap_local_page() Message-ID: References: <20211210232404.4098157-1-ira.weiny@intel.com> <20211210232404.4098157-2-ira.weiny@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211210232404.4098157-2-ira.weiny@intel.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 10, 2021 at 03:23:58PM -0800, ira.weiny@intel.com wrote: > - vaddr = kmap(page); > + vaddr = kmap_local_page(page); > memcpy(vaddr, data, len); > - kunmap(page); > + kunmap_local(vaddr); memcpy_to_page?