From patchwork Tue Feb 25 02:09:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1243801 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=none (p=none dis=none) header.from=huawei.com 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 48RMsx5JLYz9sPk for ; Tue, 25 Feb 2020 13:13:25 +1100 (AEDT) Received: from localhost ([::1]:47704 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6Pit-0002od-LB for incoming@patchwork.ozlabs.org; Mon, 24 Feb 2020 21:13:23 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:38409) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6PgN-0006rR-Gr for qemu-devel@nongnu.org; Mon, 24 Feb 2020 21:10:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j6PgL-00085A-RB for qemu-devel@nongnu.org; Mon, 24 Feb 2020 21:10:47 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:3242 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j6PgL-0007zQ-D6; Mon, 24 Feb 2020 21:10:45 -0500 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 9018B2E2D7E06BA90EA8; Tue, 25 Feb 2020 10:10:42 +0800 (CST) Received: from huawei.com (10.133.205.93) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.439.0; Tue, 25 Feb 2020 10:10:35 +0800 From: To: , Subject: [PATCH 12/13] usb/hcd-ehci: Remove redundant statements Date: Tue, 25 Feb 2020 10:09:36 +0800 Message-ID: <20200225020937.25028-13-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.14.1.windows.1 In-Reply-To: <20200225020937.25028-1-kuhn.chenqun@huawei.com> References: <20200225020937.25028-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.191 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: peter.maydell@linaro.org, Gerd Hoffmann , zhang.zhanghailiang@huawei.com, Chen Qun Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Chen Qun The "again" assignment is meaningless before g_assert_not_reached. In addition, the break statements no longer needs to be after g_assert_not_reached. Clang static code analyzer show warning: hw/usb/hcd-ehci.c:2108:13: warning: Value stored to 'again' is never read again = -1; ^ ~~ Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Philippe Mathieu-Daudé --- Cc: Gerd Hoffmann --- hw/usb/hcd-ehci.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 56ab2f457f..29d49c2d7e 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -1301,7 +1301,6 @@ static void ehci_execute_complete(EHCIQueue *q) /* should not be triggerable */ fprintf(stderr, "USB invalid response %d\n", p->packet.status); g_assert_not_reached(); - break; } /* TODO check 4.12 for splits */ @@ -2105,9 +2104,7 @@ static void ehci_advance_state(EHCIState *ehci, int async) default: fprintf(stderr, "Bad state!\n"); - again = -1; g_assert_not_reached(); - break; } if (again < 0 || itd_count > 16) {