From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F938C433ED for ; Mon, 10 May 2021 07:38:51 +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 CAF33613CF for ; Mon, 10 May 2021 07:38:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CAF33613CF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:59096 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lg0V7-0001Xj-Ov for qemu-devel@archiver.kernel.org; Mon, 10 May 2021 03:38:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40386) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lg0SF-0001XZ-QF for qemu-devel@nongnu.org; Mon, 10 May 2021 03:35:52 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:45475) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lg0S7-0003g4-MH for qemu-devel@nongnu.org; Mon, 10 May 2021 03:35:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1620632142; 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=5bbTip+MZDixvSn0v5UHIz5C3XadIBQBasu5up3eZME=; b=EcV8daGKXwXReAoR57TT3G7MzuiUyRPEyT/JazBStz7CnxFNRtlfdbbQiXEBACqKs+lBo0 MWRf/go6v8a7rza1F64YS5DO2tNdNVSL5ECKPZOIhrbivyb3lGVUk7t/HeHs8LFmGs+xkn 21fg206z8IiLdYn+84qli2ZcTk9Woys= 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-294-if_XgIsBPjeLaJHP_9wehA-1; Mon, 10 May 2021 03:35:39 -0400 X-MC-Unique: if_XgIsBPjeLaJHP_9wehA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9871F8BEDA2; Mon, 10 May 2021 07:35:38 +0000 (UTC) Received: from thuth.com (ovpn-112-84.ams2.redhat.com [10.36.112.84]) by smtp.corp.redhat.com (Postfix) with ESMTP id 30D552B4DF; Mon, 10 May 2021 07:35:36 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 5/9] pc-bios/s390-ccw: Silence warning from Clang by marking panic() as noreturn Date: Mon, 10 May 2021 09:35:20 +0200 Message-Id: <20210510073524.85951-6-thuth@redhat.com> In-Reply-To: <20210510073524.85951-1-thuth@redhat.com> References: <20210510073524.85951-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=thuth@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.699, 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_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: Christian Borntraeger , qemu-s390x@nongnu.org, cohuck@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When compiling the s390-ccw bios with Clang, the compiler emits a warning: pc-bios/s390-ccw/main.c:210:5: warning: variable 'found' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] default: ^~~~~~~ pc-bios/s390-ccw/main.c:214:16: note: uninitialized use occurs here IPL_assert(found, "Boot device not found\n"); ^~~~~ It's a false positive, it only happens because Clang is not smart enough to see that the panic() function in the "default:" case can never return. Anyway, let's explicitely mark panic() with "noreturn" to shut up the warning. Message-Id: <20210502174836.838816-2-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Cornelia Huck Signed-off-by: Thomas Huth --- pc-bios/s390-ccw/s390-ccw.h | 1 + 1 file changed, 1 insertion(+) diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h index 6cd92669e9..79db69ff54 100644 --- a/pc-bios/s390-ccw/s390-ccw.h +++ b/pc-bios/s390-ccw/s390-ccw.h @@ -89,6 +89,7 @@ bool menu_is_enabled_enum(void); #define MAX_BOOT_ENTRIES 31 +__attribute__ ((__noreturn__)) static inline void panic(const char *string) { sclp_print(string); -- 2.27.0