From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from aer-iport-7.cisco.com (aer-iport-7.cisco.com [173.38.203.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E9C60382388; Mon, 24 Aug 2026 19:20:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=173.38.203.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787599228; cv=none; b=VZCKraWDZT5BNl7eU1SIDSDM+d2B5eYUuBilKR3rthCUy+mL+rssNujIRFMcyZzMPoG2suxTjfdNXE49jgnJxxvhcTkunAj9E6ANgd9YghZ0dMibJ6ZBZom+4MitIMqEALYSMHbUhKpvamsl9jO9XaDN+weepnKJbFtWrRTEdYk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787599228; c=relaxed/simple; bh=ddIZjjhFHL2Gwf8ToRYLMwIPyRz+Y7EsI1A9KAVtV20=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tFRnc4vsqCE3xxWuReRh8VO+Q+yFg7/4sAw+PmQg7eITZtc1MKKEfIoi3cNqKjXPEyL9DLSEntfrznEhSwNmfxtQlV3J5JRWgsfzLZ/wofOqg1xnZQfmdHKUWge+NWEjt/rPHCtrB80AZADlzJ+3B1dkKrpi37ug+/sLFs8bWxI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cisco.com; spf=pass smtp.mailfrom=cisco.com; dkim=pass (2048-bit key) header.d=cisco.com header.i=@cisco.com header.b=Rj2GVR4S; arc=none smtp.client-ip=173.38.203.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cisco.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cisco.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cisco.com header.i=@cisco.com header.b="Rj2GVR4S" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.com; i=@cisco.com; l=101; q=dns/txt; s=iport01; t=1787599226; x=1788808826; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ddIZjjhFHL2Gwf8ToRYLMwIPyRz+Y7EsI1A9KAVtV20=; b=Rj2GVR4S33zSeGVTHsfVuCwE6Tdt1SleCGq6ZRGgmAgZgpuJZ8skvoKi uSplpzN7VrLRlEP7TmvtOQrNvwbWoT7OiOep/8KjDkhvImMzQ5v3HELvh b7HqgclgbBZFMABtqgRCoMJUIFHX/eZMqsze7lNA4dN1OGJ/ViVb0yoj3 xIM3PtOjYscAjlC7t1AvRbesgYm0V+B0LwadNN/dLVW+qB8r6iyn84qgF cyFj066SqKMHphGwNuwzTjygmcmEvCvWzuyHOQUOIp3OcO5ITe16SKJb0 GsxJmXVjqwb1qQlgz9KhlSFtPx9eNvmr+51+SLU5/evgtyJa660LEKj3c A==; X-CSE-ConnectionGUID: lFJ5jWrzSGiJtG9kOKDp6A== X-CSE-MsgGUID: qRNzCayMTw+PH41TWYnedQ== X-IPAS-Result: =?us-ascii?q?A0BhAwCkmIxq/9BK/pBaglmEKUOFII9SoD+Bfg8BAQEPU?= =?us-ascii?q?QQBAYFRAYMpAQkCjWwCJjQJDgECBAMCAwEBAQEBAQEBAQEBCwEBBQEBAQIBB?= =?us-ascii?q?wWBDhOGXIZbAgEDIw8BRhALDgwCJgICVgaDFYJ1A75heoEygQHeR4FyFYEKL?= =?us-ascii?q?oheAYUCdoR8JxuBSUSEDzE+iB6CagSCIoEMk1VICngcA1ksAVUTDQoLBwWBI?= =?us-ascii?q?0MDNRIqFSMPPAUtHYEjIR0XFx5YGwYFEiAqQUQVDgM+gRlBAoF1PyMZNnyBC?= =?us-ascii?q?V6BKylgAQIQF0YuFYIHAoJagSdeAgFJQw4HRyILGA1IESw3FBkEPQFuB5JDg?= =?us-ascii?q?gJQlnuwI4QooVwaM4NxAZNtkw2ZCKlDgWg8gVkzGggbFYMjUhkPjl/PX0VvA?= =?us-ascii?q?QEHAgcOAwuBaJF+AQE?= IronPort-Data: A9a23:J35rGq93mDPtsxOyxz2ZDrUDSH6TJUtcMsCJ2f8bNWPcYEJGY0x3x mpKCGGEM/beajegc99wPo/loU5UsZ6Bn4RgHQdvrSlEQiMRo6IpJzg2wmQcns+2BpeeJK6yx 5xGMrEsFOhtEDmE4EzrauS9xZVF/fngbqLmD+LZMTxGSwZhSSMw4TpugOdRbrRA2bBVOCvT/ 4mvyyHjEAX9gWAsYjhIs/jrRC5H5ZwehhtJ5jTSWtgT1LPuvyF9JI4SI6i3M0z5TuF8dsamR /zOxa2O5WjQ+REgELuNyt4XpWVTH9Y+lSDX4pZnc/DKbipq/0Te4Y5nXBYoUnq7vh3S9zxHJ HqhgrTrIeshFvWkdO3wyHC0GQkmVUFN0OevzXRSLaV/wmWeG0YAzcmCA2kyE69F+NltE1ph9 N4EB2EOSTOvn7yflefTpulE3qzPLeHiMZlavjRryivUSK55B5vCWK7No9Rf2V/chOgXQaqYP ZdFL2UzKk6YM3WjOX9PYH46tOW0gX37fiFwo1OOrq1x6G/WpOB0+Oa1bISPIoHXLSlTtl+ig HDt9nXcPg5ZDPzDkAa6w3ShitaayEsXX6pXTtVU7MVCjFSNy2k7BBQIWF6/pvelzEizR7p3M EAa0iQpqKk59EG1CNzwNzW6p36C+BAVQMZZGeA85CmCz6PV50CSAW1sZjNNddkvpsIqbTMt0 VCNkpXiAjkHmLGcT3OQ8p+Vqjy/MDIfKn9EYyIYJSMM+MXLo4wpiB/LCNF5H8adjtTqGhnzz iqMoSx4gK8c5eYIyq+y1VPKmTShot7OVAFdzgzRUnio8UB/aZKpapKA7UXd67BLLO6xQkWIo GUAlsG26v4PAZCE0ieKRY0lGLyu4eyCGDvCgFJuFt8q8DHF03upeYdb4Bl4OkZlM89CcjjsC GfIsA5c6Jp7OmWrYa5+JYm2DqwC0aH6FM35fvbKb9ZPa956cwrv1Dlnb0OW3kj3nUQsmL15M pCeGe6mFXgyF6tq1ny1Sv0b3LttwToxrUvXRJbm31Gk3KCYaXq9V7gIKh2NY/o/4afCpx/am /5bNs2X21BFXOj3SjfY/JRVLl0QK3U/Q5fspKR/cOOfLgd4MH8uBuWXwr47fYFh2aNPmY/g5 W20UEtV4ETwiGeBKgiQbH1nLrT1Uv5CQWkTNCE2eFLt0H85bMP3s+EUdoA8ev8s8+kLIeNIc sTpsv6oWpxnIgkrMRxEBXUhhOSOrCiWuD8= IronPort-HdrOrdr: A9a23:lP6cyqALdPhTalvlHemK55DYdb4zR+YMi2TDGXocdfUzSL3+qy nOpoV+6faaslgssR0b8+xofZPwIk80lqQFhLX5X43CYOCOggLBR72Kr7GSoQEIcBeQygcy78 pdmtBFaOHYPBxdkdvw5hW+HpILxdmK973tuMLlpk0dKz2Dr8pbnn9E4sHxKDwOeDV7 X-Talos-CUID: 9a23:vohuFW8h2TNarzD0wneVv0o6OJ0nTWfP91jRAVOXWGVOa5GNF3bFrQ== X-Talos-MUID: 9a23:vUh8igmh6JxPgOgmSnxldnp7DuF6yK2/LXwS0q0m55C4Ch12Njuk2WE= X-IronPort-Anti-Spam-Filtered: true X-IronPort-AV: E=Sophos;i="6.25,241,1779148800"; d="scan'208";a="60462055" Received: from aer-l-core-07.cisco.com ([144.254.74.208]) by aer-iport-7.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 24 Aug 2026 19:19:12 +0000 Received: from localhost (unknown [10.189.102.136]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by aer-l-core-07.cisco.com (Postfix) with ESMTPS id 7BC731800022C; Mon, 24 Aug 2026 19:19:11 +0000 (GMT) From: Jerome Tollet To: Dragos Tatulea Cc: netdev@vger.kernel.org, saeedm@nvidia.com, tariqt@nvidia.com, mbloch@nvidia.com, leonro@nvidia.com, daniel@iogearbox.net, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, ast@kernel.org, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH net v4 2/2] net/mlx5e: Prevent stale XSK buffer release on MPWQE refill retry Date: Mon, 24 Aug 2026 21:19:10 +0200 Message-ID: <20260824191910.64016-1-jtollet@cisco.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260824141645.23700-3-jtollet@cisco.com> References: <20260824141645.23700-1-jtollet@cisco.com> <20260824141645.23700-3-jtollet@cisco.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Outbound-Client-TLS: ANONYMOUS;unknown [10.189.102.136];TLSv1.3;TLS_AES_256_GCM_SHA384;256 X-Outbound-SMTP-Client: 10.189.102.136, [10.189.102.136] X-Outbound-Node: aer-l-core-07.cisco.com Hi Dragos, Thanks for the review and for suggesting the error-path approach. Regards, Jerome