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GET /api/patches/806268/?format=api
{ "id": 806268, "url": "http://patchwork.ozlabs.org/api/patches/806268/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20170827161032.22772-6-hch@lst.de/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20170827161032.22772-6-hch@lst.de>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20170827161032.22772-6-hch@lst.de/", "date": "2017-08-27T16:10:25", "name": "[05/12] ia64: make dma_cache_sync a no-op", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "a8df753c64661a78c8aaf805f72b87d7e2d3b645", "submitter": { "id": 82, "url": "http://patchwork.ozlabs.org/api/people/82/?format=api", "name": "Christoph Hellwig", "email": "hch@lst.de" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20170827161032.22772-6-hch@lst.de/mbox/", "series": [ { "id": 29, "url": "http://patchwork.ozlabs.org/api/series/29/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=29", "date": "2017-08-27T16:10:24", "name": "[01/12] floppy: consolidate the dummy fd_cacheflush definition", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/29/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/806268/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/806268/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xgKtB3dTLz9s8w\n\tfor <patchwork-incoming@ozlabs.org>;\n\tMon, 28 Aug 2017 02:22:10 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xgKtB2TfyzDqKl\n\tfor <patchwork-incoming@ozlabs.org>;\n\tMon, 28 Aug 2017 02:22:10 +1000 (AEST)", "from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xgKdD1WdXzDqZr\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tMon, 28 Aug 2017 02:10:56 +1000 (AEST)", "from clnet-p099-196.ikbnet.co.at ([83.175.99.196] helo=localhost)\n\tby bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat\n\tLinux)) id 1dm09A-0006sA-Pe; Sun, 27 Aug 2017 16:10:49 +0000" ], "Authentication-Results": [ "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=infradead.org header.i=@infradead.org\n\theader.b=\"PJiOOCrt\"; dkim-atps=neutral", "lists.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=infradead.org header.i=@infradead.org\n\theader.b=\"PJiOOCrt\"; dkim-atps=neutral", "lists.ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=infradead.org header.i=@infradead.org\n\theader.b=\"PJiOOCrt\"; dkim-atps=neutral" ], "DKIM-Signature": "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=infradead.org; s=bombadil.20170209;\n\th=References:In-Reply-To:Message-Id:\n\tDate:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type:\n\tContent-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:\n\tResent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:\n\tList-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;\n\tbh=Uwu+9A0z95q/irkl2CO2BDnLQWOKgUa9OVgShS5p5uE=;\n\tb=PJiOOCrt3FVLiLl+AWE3ThKB/\n\tqKCRES1Doj/FHIaQapWEeMl8ZammS4W3YB3q95OB2QtaJcKVd7qFfs4Z9md1lSuSwZn7uz9rz7vXb\n\tHQmxnFU1og9u+ukxmlqnsMz7Tcx5e60JGHiyhEE1D6fG/EuuuoI2d7OZp9Cniix8icD9o2pW5m6vT\n\tV+mym6JJxxNVD2p1BhjGoB+WN0q5qCBkN1yP2aR2BxYkyOSuN7NtfWXbH6XTdqLGidnmyxkRhNsXa\n\tZUN98M0i8Gl1OYREB5l22DpfN0sPmErsHAK7Jno/p4yhWJsAQcedahCxPIuX7FgvxPWh/L0ihXUsd\n\thkJAzdZQg==;", "From": "Christoph Hellwig <hch@lst.de>", "To": "iommu@lists.linux-foundation.org", "Subject": "[PATCH 05/12] ia64: make dma_cache_sync a no-op", "Date": "Sun, 27 Aug 2017 18:10:25 +0200", "Message-Id": "<20170827161032.22772-6-hch@lst.de>", "X-Mailer": "git-send-email 2.11.0", "In-Reply-To": "<20170827161032.22772-1-hch@lst.de>", "References": "<20170827161032.22772-1-hch@lst.de>", "X-SRS-Rewrite": "SMTP reverse-path rewritten from <hch@infradead.org> by\n\tbombadil.infradead.org. See http://www.infradead.org/rpr.html", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "Chris Zankel <chris@zankel.net>, Michal Simek <monstr@monstr.eu>,\n\tlinux-ia64@vger.kernel.org, linux-mips@linux-mips.org,\n\tlinux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,\n\tlinux-xtensa@linux-xtensa.org, x86@kernel.org,\n\tlinux-kernel@vger.kernel.org, \n\tDavid Howells <dhowells@redhat.com>, Max Filippov <jcmvbkbc@gmail.com>,\n\tGuan Xuetao <gxt@mprc.pku.edu.cn>, Robin Murphy <robin.murphy@arm.com>,\n\tMarek Szyprowski <m.szyprowski@samsung.com>", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "ia64 does not implement DMA_ATTR_NON_CONSISTENT allocations, so it doesn't\nmake any sense to do any work in dma_cache_sync given that it must be a\nno-op when dma_alloc_attrs returns coherent memory.\n\nSigned-off-by: Christoph Hellwig <hch@lst.de>\n---\n arch/ia64/include/asm/dma-mapping.h | 5 -----\n 1 file changed, 5 deletions(-)", "diff": "diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h\nindex 3ce5ab4339f3..99dfc1aa9d3c 100644\n--- a/arch/ia64/include/asm/dma-mapping.h\n+++ b/arch/ia64/include/asm/dma-mapping.h\n@@ -48,11 +48,6 @@ static inline void\n dma_cache_sync (struct device *dev, void *vaddr, size_t size,\n \tenum dma_data_direction dir)\n {\n-\t/*\n-\t * IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to\n-\t * ensure that dma_cache_sync() enforces order, hence the mb().\n-\t */\n-\tmb();\n }\n \n #endif /* _ASM_IA64_DMA_MAPPING_H */\n", "prefixes": [ "05/12" ] }