From patchwork Wed Oct 28 05:51:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 11862499 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 1C49714B4 for ; Wed, 28 Oct 2020 05:54:19 +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 9570E22281 for ; Wed, 28 Oct 2020 05:54:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9570E22281 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]:47902 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kXePZ-0004Wc-K3 for patchwork-qemu-devel@patchwork.kernel.org; Wed, 28 Oct 2020 01:54:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36632) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXeMy-0002rk-Id; Wed, 28 Oct 2020 01:51:38 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:2303) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXeMw-0007hv-Gf; Wed, 28 Oct 2020 01:51:36 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4CLd436Dr8zkZWS; Wed, 28 Oct 2020 13:51:31 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.487.0; Wed, 28 Oct 2020 13:51:17 +0800 From: Chen Qun To: , Subject: [PATCH] target/ppc/excp_helper: Add a fallthrough for fix compiler warning Date: Wed, 28 Oct 2020 13:51:07 +0800 Message-ID: <20201028055107.2170401-1-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.190; envelope-from=kuhn.chenqun@huawei.com; helo=szxga04-in.huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/28 00:18:54 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [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_NONE=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: zhang.zhanghailiang@huawei.com, clg@kaod.org, ganqixin@huawei.com, Euler Robot , Chen Qun , david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning: ../target/ppc/excp_helper.c: In function ‘powerpc_excp’: ../target/ppc/excp_helper.c:529:13: warning: this statement may fall through [-Wimplicit-fallthrough=] 529 | msr |= env->error_code; | ~~~~^~~~~~~~~~~~~~~~~~ ../target/ppc/excp_helper.c:530:5: note: here 530 | case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ | ^~~~ Add the corresponding "fall through" comment to fix it. Reported-by: Euler Robot Signed-off-by: Chen Qun --- target/ppc/excp_helper.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c index a988ba15f4..c639516399 100644 --- a/target/ppc/excp_helper.c +++ b/target/ppc/excp_helper.c @@ -527,6 +527,7 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp) break; case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */ msr |= env->error_code; + /* fall through */ case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */ case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */