From nobody Sun Oct 5 07:21:20 2025 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (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 CAD2F24728B for ; Thu, 7 Aug 2025 12:42:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754570569; cv=pass; b=PHFGYmAUDZpA60wk9j9giT/mfAIYx1+w+LsG8aASGfuv73o//kH+NFD/5dzuua/JUzbxUgDfZedWLzM9giGOaJN/FVJfl4xAkCfGHIWWFpqfTHmKnD1dqZV5H0dCSvxDSjyCr/U1/JtRMSHDJz28Rj261yMZ2qwX4g3WLlpc/84= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754570569; c=relaxed/simple; bh=Fzs5ob03Du07ZjnbHREKYT6GzJozWvS6+1TxUahEI2U=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dLJgnzIunczKqsDhmybKu8Zk+NkV4rU7ukHp2HShqKU8XvJL7dwn7XgQJFozMzJIXVXpSVZ9WizZLtZ1g+Kj8ZciZQ1Tu+8cqlWXVdLAdRlRXv5j/bO3bsTe6EgPYxVGEqA9XiCaPaNutjdBdvTwi8NtCqPmtjPu71tYIQOfN3c= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=igor.torrente@collabora.com header.b=G1HJMqkJ; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=igor.torrente@collabora.com header.b="G1HJMqkJ" ARC-Seal: i=1; a=rsa-sha256; t=1754570550; cv=none; d=zohomail.com; s=zohoarc; b=INTIVNFy+y6ACtpSfmyIAUV4uj9iNkR54fpHW6Wn2noJrF3ys7qbSoeSRHRJcHdZ5WUgnh4bl5Hh0zRYio56Czh84zbBai/SkWODn4B3qPD1r/ArS5CnIPZG65LL5XP0KI1g1eocoppwDpEzG0xSqtYyMTdytgfyPgvkkdGvflA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1754570550; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=NM4a5+r1f5+9t/J3suSz5fFORkb6R1GPJU+1Q1R1m1k=; b=TTzLlTrS1wM+YXPm8t50wRnfwrSUJ3nLzfX2pN784gXEvY2tpGWq6yzRS4NeJwHTmxRNWPW3+9JGfWdcBZtxu33rdwfQ3vn5n6fX7otQnxkooHyiOTEEuUtjmLDshtSGTe8CqUcBa3RBUrzYpNwbhzZjbvKLQ8IYSeodpPBSYeI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=igor.torrente@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1754570550; s=zohomail; d=collabora.com; i=igor.torrente@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=NM4a5+r1f5+9t/J3suSz5fFORkb6R1GPJU+1Q1R1m1k=; b=G1HJMqkJWeSeRrlPAF+4JIDFqA+8QTsMlvHceos794ezAELKAcqtKgTfDMUBwJrh GDnM3pnmeuhF3ZL1kcXazQ/VzZn5RYVp+FFSrL366sMdBeH7MQ2VtMTykyyyIN4kw0e 7fFAx64GWqb6FFTBcvnyGv+XXk8qFW30S5mVUcrU= Received: by mx.zohomail.com with SMTPS id 1754570548791590.8650301403842; Thu, 7 Aug 2025 05:42:28 -0700 (PDT) From: Igor Torrente To: mst@redhat.com Cc: sami.md.ko@gmail.com, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, eperezma@redhat.com, xuanzhuo@linux.alibaba.com, jasowang@redhat.com, dmitry.osipenko@collabora.com, Igor Torrente Subject: [PATCH] Revert "virtio: reject shm region if length is zero" Date: Thu, 7 Aug 2025 09:41:45 -0300 Message-ID: <20250807124145.81816-1-igor.torrente@collabora.com> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" This reverts commit 206cc44588f72b49ad4d7e21a7472ab2a72a83df. Signed-off-by: Igor Torrente --- include/linux/virtio_config.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index b3e1d30c765b..169c7d367fac 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -329,8 +329,6 @@ static inline bool virtio_get_shm_region(struct virtio_device *vdev, struct virtio_shm_region *region, u8 id) { - if (!region->len) - return false; if (!vdev->config->get_shm_region) return false; return vdev->config->get_shm_region(vdev, region, id); --=20 2.49.0