From patchwork Tue Mar 2 05:54:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 1445835 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=GTkQ7H08; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DqRQp2cvGz9sS8 for ; Tue, 2 Mar 2021 17:04:02 +1100 (AEDT) Received: from localhost ([::1]:43076 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lGy8W-00051e-BZ for incoming@patchwork.ozlabs.org; Tue, 02 Mar 2021 01:04:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39558) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lGy0c-0003Ll-KW for qemu-devel@nongnu.org; Tue, 02 Mar 2021 00:55:50 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:56714) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lGy0Z-00022r-VA for qemu-devel@nongnu.org; Tue, 02 Mar 2021 00:55:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614664547; 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: in-reply-to:in-reply-to:references:references; bh=SpkThKrYJEf3nNo7jb0IbOx6pzaCQXrfW3UMnParnfk=; b=GTkQ7H08K89BBDboRAPwaxuCm0WNDJszQk8Bw9q3/pLisQQENYwOPc+vGSal9cPn7vd9Su 1dIyaN9wbro0khcyFK2RsH0XqgiGwyKcNtWHFikJczKnsjwabc+/CUs3vZFRJ0I5arwIDa VAWPw39A5Gk0UaxywdxnNqCG0pwxy4g= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-571-s2k4Bp9ZMiatCrA5u5g9Qg-1; Tue, 02 Mar 2021 00:55:43 -0500 X-MC-Unique: s2k4Bp9ZMiatCrA5u5g9Qg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0E06418B9EC3; Tue, 2 Mar 2021 05:55:42 +0000 (UTC) Received: from localhost.localdomain (ovpn-12-133.pek2.redhat.com [10.72.12.133]) by smtp.corp.redhat.com (Postfix) with ESMTP id 111815C224; Tue, 2 Mar 2021 05:55:39 +0000 (UTC) From: Jason Wang To: qemu-devel@nongnu.org Subject: [PATCH V3 09/10] cadence_gem: switch to use qemu_receive_packet() for loopback Date: Tue, 2 Mar 2021 13:54:59 +0800 Message-Id: <20210302055500.51954-11-jasowang@redhat.com> In-Reply-To: <20210302055500.51954-1-jasowang@redhat.com> References: <20210302055500.51954-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alxndr@bu.edu, philmd@redhat.com, qemu-security@nongnu.org, ppandit@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Alexander Bulekov This patch switches to use qemu_receive_packet() which can detect reentrancy and return early. Signed-off-by: Alexander Bulekov Reviewed-by: Philippe Mathieu-Daudé --- hw/net/cadence_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c index 7a534691f1..6032395388 100644 --- a/hw/net/cadence_gem.c +++ b/hw/net/cadence_gem.c @@ -1275,7 +1275,7 @@ static void gem_transmit(CadenceGEMState *s) /* Send the packet somewhere */ if (s->phy_loop || (s->regs[GEM_NWCTRL] & GEM_NWCTRL_LOCALLOOP)) { - gem_receive(qemu_get_queue(s->nic), s->tx_packet, + qemu_receive_packet(qemu_get_queue(s->nic), s->tx_packet, total_bytes); } else { qemu_send_packet(qemu_get_queue(s->nic), s->tx_packet,