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GET /api/patches/807295/?format=api
{ "id": 807295, "url": "http://patchwork.ozlabs.org/api/patches/807295/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1504038918-49254-3-git-send-email-f.fainelli@gmail.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1504038918-49254-3-git-send-email-f.fainelli@gmail.com>", "list_archive_url": null, "date": "2017-08-29T20:35:16", "name": "[net-next,v2,2/4] net: dsa: bcm_sf2: Use correct I/O accessors", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "a3c448da7ae2a57f1301188586d45fbd1b0f3428", "submitter": { "id": 2800, "url": "http://patchwork.ozlabs.org/api/people/2800/?format=api", "name": "Florian Fainelli", "email": "f.fainelli@gmail.com" }, "delegate": { "id": 34, "url": "http://patchwork.ozlabs.org/api/users/34/?format=api", "username": "davem", "first_name": "David", "last_name": "Miller", "email": "davem@davemloft.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/1504038918-49254-3-git-send-email-f.fainelli@gmail.com/mbox/", "series": [ { "id": 470, "url": "http://patchwork.ozlabs.org/api/series/470/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=470", "date": "2017-08-29T20:35:14", "name": "Endian fixes for SYSTEMPORT/SF2/MDIO", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/470/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/807295/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/807295/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"uT2AllI+\"; dkim-atps=neutral" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xhgXN3CmHz9s9Y\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 30 Aug 2017 06:41:24 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751660AbdH2UlV (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tTue, 29 Aug 2017 16:41:21 -0400", "from mail-qt0-f195.google.com ([209.85.216.195]:38868 \"EHLO\n\tmail-qt0-f195.google.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751558AbdH2UlS (ORCPT\n\t<rfc822;netdev@vger.kernel.org>); Tue, 29 Aug 2017 16:41:18 -0400", "by mail-qt0-f195.google.com with SMTP id d15so3751713qta.5\n\tfor <netdev@vger.kernel.org>; Tue, 29 Aug 2017 13:41:18 -0700 (PDT)", "from stb-bld-04.irv.broadcom.com ([192.19.255.250])\n\tby smtp.gmail.com with ESMTPSA id\n\tu17sm2645446qtc.43.2017.08.29.13.41.15\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tTue, 29 Aug 2017 13:41:16 -0700 (PDT)" ], "DKIM-Signature": "v=1; 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\n\tTue, 29 Aug 2017 13:41:17 -0700 (PDT)", "From": "Florian Fainelli <f.fainelli@gmail.com>", "To": "netdev@vger.kernel.org", "Cc": "davem@davemloft.net, opendmb@gmail.com, andrew@lunn.ch,\n\tvivien.didelot@savoirfairelinux.com,\n\tFlorian Fainelli <f.fainelli@gmail.com>", "Subject": "[PATCH net-next v2 2/4] net: dsa: bcm_sf2: Use correct I/O accessors", "Date": "Tue, 29 Aug 2017 13:35:16 -0700", "Message-Id": "<1504038918-49254-3-git-send-email-f.fainelli@gmail.com>", "X-Mailer": "git-send-email 1.9.1", "In-Reply-To": "<1504038918-49254-1-git-send-email-f.fainelli@gmail.com>", "References": "<1504038918-49254-1-git-send-email-f.fainelli@gmail.com>", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "The Starfigther 2 driver currently uses __raw_{read,write}l which means\nnative I/O endian. This works correctly for an ARM LE kernel (default)\nbut fails miserably on an ARM BE (BE8) kernel where registers are kept\nlittle endian, so replace uses with {read,write}l_relaxed here which is\nwhat we want because this is all performance sensitive code.\n\nSigned-off-by: Florian Fainelli <f.fainelli@gmail.com>\n---\n drivers/net/dsa/bcm_sf2.h | 12 ++++++------\n 1 file changed, 6 insertions(+), 6 deletions(-)", "diff": "diff --git a/drivers/net/dsa/bcm_sf2.h b/drivers/net/dsa/bcm_sf2.h\nindex 7d3030e04f11..d9c96b281fc0 100644\n--- a/drivers/net/dsa/bcm_sf2.h\n+++ b/drivers/net/dsa/bcm_sf2.h\n@@ -130,12 +130,12 @@ static inline u32 bcm_sf2_mangle_addr(struct bcm_sf2_priv *priv, u32 off)\n #define SF2_IO_MACRO(name) \\\n static inline u32 name##_readl(struct bcm_sf2_priv *priv, u32 off)\t\\\n {\t\t\t\t\t\t\t\t\t\\\n-\treturn __raw_readl(priv->name + off);\t\t\t\t\\\n+\treturn readl_relaxed(priv->name + off);\t\t\t\t\\\n }\t\t\t\t\t\t\t\t\t\\\n static inline void name##_writel(struct bcm_sf2_priv *priv,\t\t\\\n \t\t\t\t u32 val, u32 off)\t\t\t\\\n {\t\t\t\t\t\t\t\t\t\\\n-\t__raw_writel(val, priv->name + off);\t\t\t\t\\\n+\twritel_relaxed(val, priv->name + off);\t\t\t\t\\\n }\t\t\t\t\t\t\t\t\t\\\n \n /* Accesses to 64-bits register requires us to latch the hi/lo pairs\n@@ -179,23 +179,23 @@ static inline u32 bcm_sf2_mangle_addr(struct bcm_sf2_priv *priv, u32 off)\n static inline u32 core_readl(struct bcm_sf2_priv *priv, u32 off)\n {\n \tu32 tmp = bcm_sf2_mangle_addr(priv, off);\n-\treturn __raw_readl(priv->core + tmp);\n+\treturn readl_relaxed(priv->core + tmp);\n }\n \n static inline void core_writel(struct bcm_sf2_priv *priv, u32 val, u32 off)\n {\n \tu32 tmp = bcm_sf2_mangle_addr(priv, off);\n-\t__raw_writel(val, priv->core + tmp);\n+\twritel_relaxed(val, priv->core + tmp);\n }\n \n static inline u32 reg_readl(struct bcm_sf2_priv *priv, u16 off)\n {\n-\treturn __raw_readl(priv->reg + priv->reg_offsets[off]);\n+\treturn readl_relaxed(priv->reg + priv->reg_offsets[off]);\n }\n \n static inline void reg_writel(struct bcm_sf2_priv *priv, u32 val, u16 off)\n {\n-\t__raw_writel(val, priv->reg + priv->reg_offsets[off]);\n+\twritel_relaxed(val, priv->reg + priv->reg_offsets[off]);\n }\n \n SF2_IO64_MACRO(core);\n", "prefixes": [ "net-next", "v2", "2/4" ] }