From patchwork Mon Nov 22 16:35:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Garzarella X-Patchwork-Id: 12632521 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7925EC433F5 for ; Mon, 22 Nov 2021 16:36:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239540AbhKVQjT (ORCPT ); Mon, 22 Nov 2021 11:39:19 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:21278 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236124AbhKVQjT (ORCPT ); Mon, 22 Nov 2021 11:39:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1637598972; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=xOj6PkANhb6frdrg6dV7v39rxknergSrEgBUTsnCA3U=; b=flBrNc5HyuVHQ9cKn7TqKN43iA5+BJGLD9bvMSprU0RTq6Piwb7NjMVVF1GP3hDdaCdVm/ VoRXl7+anOKKN8YGbdmSJsMMIHnjqS0OSZhebIUT+WIm0oG4gOYg7NaYYAHzal31pnE9wW MoB9J0+9sILkbfQnUtqGPzdjcs9uQ/Y= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-474-s8WjydtlOVmkHHoVEWKNiA-1; Mon, 22 Nov 2021 11:36:09 -0500 X-MC-Unique: s8WjydtlOVmkHHoVEWKNiA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E5A771023F4F; Mon, 22 Nov 2021 16:36:07 +0000 (UTC) Received: from steredhat.redhat.com (unknown [10.39.192.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id A6D1D60C7F; Mon, 22 Nov 2021 16:35:26 +0000 (UTC) From: Stefano Garzarella To: virtualization@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org, Stefano Garzarella , Jason Wang , Stefan Hajnoczi , netdev@vger.kernel.org, Halil Pasic , kvm@vger.kernel.org, Asias He , "Michael S. Tsirkin" Subject: [PATCH 0/2] vhost/vsock: fix used length and cleanup in vhost_vsock_handle_tx_kick() Date: Mon, 22 Nov 2021 17:35:23 +0100 Message-Id: <20211122163525.294024-1-sgarzare@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This is a follow-up to Micheal's patch [1] and the discussion with Halil and Jason [2]. I made two patches, one to fix the problem and one for cleanup. This should simplify the backport of the fix because we've had the problem since vhost-vsock was introduced (v4.8) and that part has been touched a bit recently. Thanks, Stefano [1] https://lore.kernel.org/virtualization/20211122105822.onarsa4sydzxqynu@steredhat/T/#t [2] https://lore.kernel.org/virtualization/20211027022107.14357-1-jasowang@redhat.com/T/#t Stefano Garzarella (2): vhost/vsock: fix incorrect used length reported to the guest vhost/vsock: cleanup removing `len` variable drivers/vhost/vsock.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) Reviewed-by: Stefan Hajnoczi