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GET /api/patches/2213465/?format=api
{ "id": 2213465, "url": "http://patchwork.ozlabs.org/api/patches/2213465/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260319211335.23236-3-emil.s.tantilov@intel.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": "<20260319211335.23236-3-emil.s.tantilov@intel.com>", "list_archive_url": null, "date": "2026-03-19T21:13:34", "name": "[iwl-net,v2,2/3] idpf: improve locking around idpf_vc_xn_push_free()", "commit_ref": null, "pull_url": null, "state": "under-review", "archived": false, "hash": "42b06aa80623b46061921ef7074c111c80f60e27", "submitter": { "id": 1670, "url": "http://patchwork.ozlabs.org/api/people/1670/?format=api", "name": "Tantilov, Emil S", "email": "emil.s.tantilov@intel.com" }, "delegate": { "id": 109701, "url": "http://patchwork.ozlabs.org/api/users/109701/?format=api", "username": "anguy11", "first_name": "Anthony", "last_name": "Nguyen", "email": "anthony.l.nguyen@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260319211335.23236-3-emil.s.tantilov@intel.com/mbox/", "series": [ { "id": 496716, "url": "http://patchwork.ozlabs.org/api/series/496716/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=496716", "date": "2026-03-19T21:13:34", "name": "idpf: virtchnl locking and async fixes", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/496716/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2213465/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2213465/checks/", "tags": {}, "related": [], "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@legolas.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=Fa7xOlWz;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::136; 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envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver=<UNKNOWN> ", "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 smtp3.osuosl.org A6E95613D8", "OpenDKIM Filter v2.11.0 smtp2.osuosl.org 1E313404A8" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org;\n\ts=default; t=1773954846;\n\tbh=A3rr7R6rV2HWrNv0dG0iXcmXY6dWNF0FyqtWDQ0CEuY=;\n\th=From:To:Cc:Date:In-Reply-To:References:Subject:List-Id:\n\t List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe:\n\t From;\n\tb=Fa7xOlWzey+3FCqFH1eCy9kUeCr9Ikzn3hxxpsmHvLWmBKoe0cX7eZqsz6Pe6S/2A\n\t dgMwCCkN2ka31FdlwK+jdpIlD3N89QYvYmf30efBPfOAz+CytiTdZSKhhbs6AlE7bb\n\t f1gJxIuw1jxesRdmCjkqq4M9Kbo8LV3jMPAlRTWV7kFq01DWu1gHAPamt3E73sBNOG\n\t V3dgdfb6pf4FJWqXK88/is6mOlRIauM4a14Qq6OPplWKyzjiIXADkjTf/4bpJ/9SCK\n\t E9LEXyRawrOSn045mg/EkdwHN7MxPdpstWggd+jiKCKdjaLf50S0tfu8clM6Pouw3L\n\t 4PCTEz5Kh1MKA==", "Received-SPF": "Pass (mailfrom) identity=mailfrom; client-ip=198.175.65.13;\n helo=mgamail.intel.com; envelope-from=emil.s.tantilov@intel.com;\n receiver=<UNKNOWN>", "DMARC-Filter": "OpenDMARC Filter v1.4.2 smtp2.osuosl.org 1E313404A8", "X-CSE-ConnectionGUID": [ "gKiF9iDTQcqvVsz8I8Xq9A==", "REe93wI8QfGVVyM1f/5zkA==" ], "X-CSE-MsgGUID": [ "Iw4tkwGzTEyi+hiJT0TrYg==", "JCzPACKwTgKixmtbe025Jw==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11734\"; a=\"86116380\"", "E=Sophos;i=\"6.23,130,1770624000\"; d=\"scan'208\";a=\"86116380\"", "E=Sophos;i=\"6.23,130,1770624000\"; d=\"scan'208\";a=\"227221175\"" ], "X-ExtLoop1": "1", "From": "Emil Tantilov <emil.s.tantilov@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Cc": "netdev@vger.kernel.org, anthony.l.nguyen@intel.com,\n aleksandr.loktionov@intel.com, przemyslaw.kitszel@intel.com,\n andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,\n kuba@kernel.org, pabeni@redhat.com, bigeasy@linutronix.de,\n clrkwllms@kernel.org, rostedt@goodmis.org, linux-rt-devel@lists.linux.dev,\n sgzhang@google.com, boolli@google.com,\n Emil Tantilov <emil.s.tantilov@intel.com>, stable@vger.kernel.org", "Date": "Thu, 19 Mar 2026 14:13:34 -0700", "Message-Id": "<20260319211335.23236-3-emil.s.tantilov@intel.com>", "X-Mailer": "git-send-email 2.17.2", "In-Reply-To": "<20260319211335.23236-1-emil.s.tantilov@intel.com>", "References": "<20260319211335.23236-1-emil.s.tantilov@intel.com>", "X-Mailman-Original-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1773954845; x=1805490845;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references;\n bh=oRpzbw8xGxDnBQtkUrD1pw82znTvjifsBtJ+zx1wwAI=;\n b=PcK3CuBgm2ZzKEowVlC6eGHyaXyji1jeLnrnTz9nWKfsXngoDIwlKRkk\n QW7m6LhMPYaqf52MpZrjJEjWn1FsYrkeLtKUIXGROH0VAHX7fRRE6aciQ\n 0Echlf3YdQXtTQTQ39TC8Z+iCCKDi1QBQ2rqatQKgzBeX9LuhZCO0Iqna\n z4hlo3ogkSJ1/qmK1o4yLcjN2zGAVnbiB7Z/sgDJrvSBDpGVNn70PtuQI\n 7BKuwmVNn0QKTYETPjzDcKGfhBM26xIrbLlOUb/Ow+ReFu7plyBrIrdSo\n 4pOwz80Xv3e92w6f8uQarDy48N2bDICCE/V0y61eOiVDDB0HDxokfdhpM\n g==;", "X-Mailman-Original-Authentication-Results": [ "smtp2.osuosl.org;\n dmarc=pass (p=none dis=none)\n header.from=intel.com", "smtp2.osuosl.org;\n dkim=pass (2048-bit key,\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=PcK3CuBg" ], "Subject": "[Intel-wired-lan] [PATCH iwl-net v2 2/3] idpf: improve locking\n around idpf_vc_xn_push_free()", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>,\n <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 <mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "Protect the set_bit() operation for the free_xn bitmask in\nidpf_vc_xn_push_free(), to make the locking consistent with rest of the\ncode and avoid potential races in that logic.\n\nFixes: 34c21fa894a1 (\"idpf: implement virtchnl transaction manager\")\nCc: stable@vger.kernel.org\nReported-by: Ray Zhang <sgzhang@google.com>\nSigned-off-by: Emil Tantilov <emil.s.tantilov@intel.com>\n---\n drivers/net/ethernet/intel/idpf/idpf_virtchnl.c | 2 ++\n 1 file changed, 2 insertions(+)", "diff": "diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c\nindex 582e0c8e9dc0..fbd5a15b015c 100644\n--- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c\n+++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c\n@@ -402,7 +402,9 @@ static void idpf_vc_xn_push_free(struct idpf_vc_xn_manager *vcxn_mngr,\n \t\t\t\t struct idpf_vc_xn *xn)\n {\n \tidpf_vc_xn_release_bufs(xn);\n+\tspin_lock_bh(&vcxn_mngr->xn_bm_lock);\n \tset_bit(xn->idx, vcxn_mngr->free_xn_bm);\n+\tspin_unlock_bh(&vcxn_mngr->xn_bm_lock);\n }\n \n /**\n", "prefixes": [ "iwl-net", "v2", "2/3" ] }