From patchwork Tue Aug 25 11:24:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 11735581 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 864D9109B for ; Tue, 25 Aug 2020 11:32:22 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 67A9E2068E for ; Tue, 25 Aug 2020 11:32:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 67A9E2068E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:53428 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kAXBd-00038b-N7 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 25 Aug 2020 07:32:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46828) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kAX5s-0000Ym-9H; Tue, 25 Aug 2020 07:26:24 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:39244 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kAX5q-0006iP-HE; Tue, 25 Aug 2020 07:26:24 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 3587488DF51339F7D650; Tue, 25 Aug 2020 19:26:19 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Tue, 25 Aug 2020 19:26:08 +0800 From: Chen Qun To: , Subject: [PATCH v2 09/10] hw/intc: Remove redundant statement in exynos4210_combiner_read() Date: Tue, 25 Aug 2020 19:24:46 +0800 Message-ID: <20200825112447.126308-10-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20200825112447.126308-1-kuhn.chenqun@huawei.com> References: <20200825112447.126308-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.32; envelope-from=kuhn.chenqun@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/25 07:26:19 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham 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: Peter Maydell , zhang.zhanghailiang@huawei.com, Igor Mitsyanko , pannengyuan@huawei.com, Euler Robot , Chen Qun Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Clang static code analyzer show warning: hw/intc/exynos4210_combiner.c:231:9: warning: Value stored to 'val' is never read val = s->reg_set[offset >> 2]; The default value of 'val' is '0', so we can break the 'default' branch and return 'val'. Reported-by: Euler Robot Signed-off-by: Chen Qun --- Cc: Igor Mitsyanko Cc: Peter Maydell --- hw/intc/exynos4210_combiner.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/hw/intc/exynos4210_combiner.c b/hw/intc/exynos4210_combiner.c index b8561e4180..e2e745bbaa 100644 --- a/hw/intc/exynos4210_combiner.c +++ b/hw/intc/exynos4210_combiner.c @@ -228,8 +228,7 @@ exynos4210_combiner_read(void *opaque, hwaddr offset, unsigned size) hw_error("exynos4210.combiner: overflow of reg_set by 0x" TARGET_FMT_plx "offset\n", offset); } - val = s->reg_set[offset >> 2]; - return 0; + break; } return val; }