From patchwork Tue Mar 3 10:10:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 1248262 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; dmarc=fail (p=none dis=none) header.from=redhat.com 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=URsV2FDE; 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 48WtCy5KMSz9sRR for ; Tue, 3 Mar 2020 21:14:38 +1100 (AEDT) Received: from localhost ([::1]:44698 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j94ZQ-0006ZY-JU for incoming@patchwork.ozlabs.org; Tue, 03 Mar 2020 05:14:36 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52459) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j94W0-0007aS-Ga for qemu-devel@nongnu.org; Tue, 03 Mar 2020 05:11:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j94Vy-00069U-Jq for qemu-devel@nongnu.org; Tue, 03 Mar 2020 05:11:04 -0500 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:55107 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j94Vy-000692-CM for qemu-devel@nongnu.org; Tue, 03 Mar 2020 05:11:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583230260; 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=JH+RB81HXiuvd/zhpDJS7O/7Rt1VoS75u8d6tZLzezA=; b=URsV2FDEhiqDB1Fooulru9blIXRJweEfxn7n++iw0pEaPXFk7NLkChNrjuLOiJZqienfw5 uGslkfQmVzMIKaooiAvgj8aMN+l+v208pi+cVy7u5caXEDnDSGNwM39JcLMXKsH1xIzKuX 0Bw78/unPzLtt1ch9RXauGPtL+RmFZs= 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-302-IK4lji_PMlu9ny8ormCSmA-1; Tue, 03 Mar 2020 05:10:57 -0500 X-MC-Unique: IK4lji_PMlu9ny8ormCSmA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 115818018A9; Tue, 3 Mar 2020 10:10:56 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-98.pek2.redhat.com [10.72.12.98]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6F6EF8D572; Tue, 3 Mar 2020 10:10:54 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL V2 04/23] dp8393x: Have dp8393x_receive() return the packet size Date: Tue, 3 Mar 2020 18:10:23 +0800 Message-Id: <1583230242-14597-5-git-send-email-jasowang@redhat.com> In-Reply-To: <1583230242-14597-1-git-send-email-jasowang@redhat.com> References: <1583230242-14597-1-git-send-email-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.61 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: Jason Wang , qemu-devel@nongnu.org, Finn Thain Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Finn Thain This function re-uses its 'size' argument as a scratch variable. Instead, declare a local 'size' variable for that purpose so that the function result doesn't get messed up. Signed-off-by: Finn Thain Reviewed-by: Philippe Mathieu-Daudé Tested-by: Laurent Vivier Signed-off-by: Jason Wang --- hw/net/dp8393x.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index 1844482..ed57f5f 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -759,20 +759,21 @@ static int dp8393x_receive_filter(dp8393xState *s, const uint8_t * buf, } static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, - size_t size) + size_t pkt_size) { dp8393xState *s = qemu_get_nic_opaque(nc); int packet_type; uint32_t available, address; - int width, rx_len = size; + int width, rx_len = pkt_size; uint32_t checksum; + int size; width = (s->regs[SONIC_DCR] & SONIC_DCR_DW) ? 2 : 1; s->regs[SONIC_RCR] &= ~(SONIC_RCR_PRX | SONIC_RCR_LBK | SONIC_RCR_FAER | SONIC_RCR_CRCR | SONIC_RCR_LPKT | SONIC_RCR_BC | SONIC_RCR_MC); - packet_type = dp8393x_receive_filter(s, buf, size); + packet_type = dp8393x_receive_filter(s, buf, pkt_size); if (packet_type < 0) { DPRINTF("packet not for netcard\n"); return -1; @@ -868,7 +869,7 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, /* Done */ dp8393x_update_irq(s); - return size; + return pkt_size; } static void dp8393x_reset(DeviceState *dev)