From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f196.google.com (mail-pf1-f196.google.com [209.85.210.196]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8296E31A556 for ; Wed, 30 Sep 2026 08:20:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.196 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790756415; cv=none; b=i6Ej1EcIDfCeJQPoPDdEWiQDL0/T/s07ywlQ0SEdytUd4yQ4T3MaZ5thx2fuz9vpLRWiym6JQSqEMzxrqt0xV/10iYpJ/TjAkUY1ZKUFAKul48DB3E6eavjrD0mQG/dCzLXGSPZARpyzlfYFTHK7EtTJfXhsp5/DsPC3h9O6vaw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790756415; c=relaxed/simple; bh=ycztRh6KW31aMbR9JOx+NIxGDJnhNwHNSAWSFQMDw7g=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cHWKVhZi2//ci0EMB4ib5lMme6hhm//p/mfpouO6oY1mHYlld4M25bZHgvSGvlToSW/RgxMi8jKdhsx0Mr68f1EVAw3oNN8t466lZksU7zvDhnz/6la1BLq23+085I8+mKVuL7fo/kitFzlXxSaxO3857ETxoGLFseqdz0bUhpE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=foxmail.com; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.210.196 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=foxmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pf1-f196.google.com with SMTP id d2e1a72fcca58-886fe53b6e1so80343b3a.1 for ; Wed, 30 Sep 2026 01:20:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790756409; x=1791361209; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=mlT9uucan4516HjvpINSh7L9WJQ72N4e/zzaGJgPCFg=; b=ua790yGjdswvmmbejBm5cxeOjrMZjwHamYPDN1HRXaD21j87dFgv7sJhkHJieoH+mG YnL3GKbmNjFvu5D7blFS3tnIdgRO+2ZfNg5RsK4BdRfgnJG52nKWJGQWwAJG92U5wUti wk8dqBtFKBhYSESZi8mFObhJZqYafmRWQPOMLDZIWVo+zN3/kMOY6wGACJWFG90G5NAy M0uQs3uE6QJIx+OPdUCCgJUZ7LIooxJHC3WYWD0+/4mp3NfFv4nxFPx4f+8tL35u0SZv KXLsFdiGMxEHN2CMmpUIYgAMBqepnhjEeCmUwJnI2ONoNFPdODamtIEKZKhUponHorfw XVCg== X-Gm-Message-State: AFq9FYLHSIN/aB0kEKnEq8gheP7dehjBcfLdEsgQtdnampmKnWkNVNI4 7C3OvPgCHfXlkgJtK826tlG8ko+ALIUxfsulr8tQXnTgul3SBAn3TQkW6eE2I1g4qM7MSA== X-Gm-Gg: AYBFou0E0N+8qSYqyyx/v2KzW8Eg/puFKy1uuINppOO2vjb12k+/GjHDNjv5U8uopZk A7lgFG2xlKOcHXlYicOfUGOrHOZTdzsNxM60SXkbsCbXLOAkisjy7nNSmvuQ5n/gdxzFd5J1AKr 3Wst9FZ4CUaqBWHQPjqcCH9QdCab7R1p4RORjvTDPZoTV2G3jAjOeSrL6WoC/t1zay23VlUiKMw rlcogP/WlDbpHuGTCoYl9V3iJEUzbSV8yinctW3DtXYa4Mr82MFdU6mFUUr1IIOgEMlbf2/fzSZ qIVJ6G/V6QmqPzzXgKWYcNNvz7/+0SOrz4wz55+eqIZq3G2uT2n7n+c4kjWjgRIigPeuHOrVbGU 0wSZivCNsqgzXfn0YRpY4q2ta0V2lgGTkLeT7CsAADFF0RA9bo7CevzTHOaC4JR7gxFk71m25vQ mY654Eg7DDqphPbcGnAGd1QSMkEjf9Uf+jEGX4VSBjc/peWCA89vHhpD67dRfrYlMtEpo3Bg0i8 a1AQNOL6Yh2W9Tc6CY= X-Received: by 2002:a05:6a00:22d4:b0:887:29b1:27f3 with SMTP id d2e1a72fcca58-8874e34619amr311376b3a.44.1790756408640; Wed, 30 Sep 2026 01:20:08 -0700 (PDT) Received: from foxmail.com ([120.239.72.254]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8872643904asm419955b3a.45.2026.09.30.01.20.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Sep 2026 01:20:08 -0700 (PDT) From: Jianlin Shi To: netdev@vger.kernel.org, virtualization@lists.linux.dev Cc: mst@redhat.com, jasowangio@gmail.com, eperezma@redhat.com, xuanzhuo@linux.alibaba.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, talgi@nvidia.com, hengqi@linux.alibaba.com, horms@kernel.org Subject: [PATCH 0/2] virtio-net/dim: fix irq moderation init failure unwind Date: Wed, 30 Sep 2026 16:19:50 +0800 Message-ID: X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit net_dim_init_irq_moder() leaves dev->irq_moder dangling when profile allocation fails. virtio-net probe then skips virtqueue teardown if that init fails after init_vqs(). Patch 1 makes the dim init failure path clear irq_moder, so net_dim_free_irq_moder() is a no-op. Patch 2 sends the virtio-net failure through the existing free_irq_moder unwind (reset + del_vqs), matching the page-pool failure path. Patch 2 depends on patch 1. Jianlin Shi (2): dim: clear irq_moder on init failure virtio-net: unwind VQs when irq moderation init fails drivers/net/virtio_net.c | 2 +- lib/dim/net_dim.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) -- 2.43.0