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{ "id": 839070, "url": "http://patchwork.ozlabs.org/api/covers/839070/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/1510938349-17608-1-git-send-email-brking@linux.vnet.ibm.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1510938349-17608-1-git-send-email-brking@linux.vnet.ibm.com>", "list_archive_url": null, "date": "2017-11-17T17:05:42", "name": "[v2,0/7,net] intel: Use smp_rmb rather than read_barrier_depends", "submitter": { "id": 943, "url": "http://patchwork.ozlabs.org/api/people/943/?format=api", "name": "Brian King", "email": "brking@linux.vnet.ibm.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/1510938349-17608-1-git-send-email-brking@linux.vnet.ibm.com/mbox/", "series": [ { "id": 14119, "url": "http://patchwork.ozlabs.org/api/series/14119/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=14119", "date": "2017-11-17T17:05:43", "name": "intel: Use smp_rmb rather than read_barrier_depends", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/14119/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/839070/comments/", "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=osuosl.org\n\t(client-ip=140.211.166.136; helo=silver.osuosl.org;\n\tenvelope-from=intel-wired-lan-bounces@osuosl.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3ydlN562hgz9s0g\n\tfor <incoming@patchwork.ozlabs.org>;\n\tSat, 18 Nov 2017 04:24:21 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby silver.osuosl.org (Postfix) with ESMTP id 52CC82F026;\n\tFri, 17 Nov 2017 17:24:20 +0000 (UTC)", "from silver.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id nMXidPIi9mdD; Fri, 17 Nov 2017 17:24:18 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby silver.osuosl.org (Postfix) with ESMTP id 511B12EFB7;\n\tFri, 17 Nov 2017 17:24:18 +0000 (UTC)", "from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\n\tby ash.osuosl.org (Postfix) with ESMTP id 0E7FB1C152B\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 17 Nov 2017 17:06:00 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 031E688B92\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 17 Nov 2017 17:06:00 +0000 (UTC)", "from hemlock.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id QTHxAdIxepHo for <intel-wired-lan@lists.osuosl.org>;\n\tFri, 17 Nov 2017 17:05:59 +0000 (UTC)", "from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n\t[148.163.158.5])\n\tby hemlock.osuosl.org (Postfix) with ESMTPS id 1A9F888B7F\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 17 Nov 2017 17:05:59 +0000 (UTC)", "from pps.filterd (m0098416.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tvAHH4HJv196165 for <intel-wired-lan@lists.osuosl.org>;\n\tFri, 17 Nov 2017 12:05:58 -0500", "from e38.co.us.ibm.com (e38.co.us.ibm.com [32.97.110.159])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2e9ykw4t1h-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 17 Nov 2017 12:05:57 -0500", "from localhost\n\tby e38.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <intel-wired-lan@lists.osuosl.org> from\n\t<brking@linux.vnet.ibm.com>; Fri, 17 Nov 2017 10:05:57 -0700", "from b03cxnp08028.gho.boulder.ibm.com (9.17.130.20)\n\tby e38.co.us.ibm.com (192.168.1.138) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tFri, 17 Nov 2017 10:05:53 -0700", "from b03ledav004.gho.boulder.ibm.com\n\t(b03ledav004.gho.boulder.ibm.com [9.17.130.235])\n\tby b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id vAHH5rUK3473820; Fri, 17 Nov 2017 10:05:53 -0700", "from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 68D3E78037;\n\tFri, 17 Nov 2017 10:05:53 -0700 (MST)", "from oc3660843733-ibm-com.ibm.com (unknown [9.10.86.134])\n\tby b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP id BAFED78056;\n\tFri, 17 Nov 2017 10:05:52 -0700 (MST)" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "from auto-whitelisted by SQLgrey-1.7.6", "From": "Brian King <brking@linux.vnet.ibm.com>", "To": "", "Date": "Fri, 17 Nov 2017 11:05:42 -0600", "X-Mailer": "git-send-email 1.8.3.1", "X-TM-AS-GCONF": "00", "x-cbid": "17111717-0028-0000-0000-000008AB4A74", "X-IBM-SpamModules-Scores": "", "X-IBM-SpamModules-Versions": "BY=3.00008083; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000240; SDB=6.00947257; UDB=6.00478229;\n\tIPR=6.00727549; \n\tBA=6.00005697; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00018066;\n\tXFM=3.00000015; UTC=2017-11-17 17:05:55", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17111717-0029-0000-0000-0000385F4401", "Message-Id": "<1510938349-17608-1-git-send-email-brking@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-11-17_05:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tpriorityscore=1501\n\tmalwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0\n\tclxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0\n\tclassifier=spam adjust=0 reason=mlx scancount=1\n\tengine=8.0.1-1709140000\n\tdefinitions=main-1711170233", "Subject": "[Intel-wired-lan] [PATCH v2 0/7] [net] intel: Use smp_rmb rather\n\tthan read_barrier_depends", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.24", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Cc": "muvic@linux.vnet.ibm.com, stable@vger.kernel.org,\n\tintel-wired-lan@lists.osuosl.org, brking@pobox.com", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "This patch converts several network drivers to use smp_rmb\nrather than read_barrier_depends. The initial issue was\ndiscovered with ixgbe on a Power machine which resulted\nin skb list corruption due to fetching a stale skb pointer.\nMore details can be found in the ixgbe patch description.\n\nChanges since v1:\n- Remove NULLing of tx_buffer->skb in the ixgbe patch\n\nBrian King (7):\n ixgbe: Fix skb list corruption on Power systems\n i40e: Use smp_rmb rather than read_barrier_depends\n ixgbevf: Use smp_rmb rather than read_barrier_depends\n igbvf: Use smp_rmb rather than read_barrier_depends\n igb: Use smp_rmb rather than read_barrier_depends\n fm10k: Use smp_rmb rather than read_barrier_depends\n i40evf: Use smp_rmb rather than read_barrier_depends\n\n drivers/net/ethernet/intel/fm10k/fm10k_main.c | 2 +-\n drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-\n drivers/net/ethernet/intel/i40e/i40e_txrx.c | 2 +-\n drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 2 +-\n drivers/net/ethernet/intel/igb/igb_main.c | 2 +-\n drivers/net/ethernet/intel/igbvf/netdev.c | 2 +-\n drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +-\n drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +-\n 8 files changed, 8 insertions(+), 8 deletions(-)" }