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=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 9F2E4C433E0 for ; Sun, 21 Mar 2021 17:21:26 +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 062C66192D for ; Sun, 21 Mar 2021 17:21:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 062C66192D 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]:43096 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lO1lU-0000oG-UR for qemu-devel@archiver.kernel.org; Sun, 21 Mar 2021 13:21:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56404) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lO1j0-0007NK-SS for qemu-devel@nongnu.org; Sun, 21 Mar 2021 13:18:52 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:29814) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lO1it-0005Ra-LX for qemu-devel@nongnu.org; Sun, 21 Mar 2021 13:18:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1616347122; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=02DGbrUqtjcx+KvCxlPP539DjQ82K7xeYKUDqDDUnwQ=; b=W3QBrI8RyDVOISSqiAcJa6u/qCyeyNfcLBkRtL+C0DpQApSCnT7OCORbfmgdx87YW0IcgS elJSQugap47NItVHKSYdlfuLsoUGyttqAtXdvbjwzpzzpe/M3x4VJTNcIcDzVRe6P77IRx QxZLdfexWX4zNPfdFVqQzz7vBPCYQGU= 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-575-L7VOJT2MNpyeMny5xQV1Kg-1; Sun, 21 Mar 2021 13:18:40 -0400 X-MC-Unique: L7VOJT2MNpyeMny5xQV1Kg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E97CD108BD06; Sun, 21 Mar 2021 17:18:38 +0000 (UTC) Received: from thuth.com (ovpn-112-125.ams2.redhat.com [10.36.112.125]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1C14C295D8; Sun, 21 Mar 2021 17:18:37 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 2/5] tests/unit/test-block-iothread: fix maybe-uninitialized error on GCC 11 Date: Sun, 21 Mar 2021 18:18:30 +0100 Message-Id: <20210321171833.20736-3-thuth@redhat.com> In-Reply-To: <20210321171833.20736-1-thuth@redhat.com> References: <20210321171833.20736-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 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=216.205.24.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Emanuele Giuseppe Esposito When building qemu with GCC 11, test-block-iothread produces the following warning: ../tests/unit/test-block-iothread.c:148:11: error: ‘buf’ may be used uninitialized [-Werror=maybe-uninitialized] This is caused by buf[512] left uninitialized and passed to bdrv_save_vmstate() that expects a const uint8_t *, so the compiler assumes it will be read and expects the parameter to be initialized. Signed-off-by: Emanuele Giuseppe Esposito Reviewed-by: Paolo Bonzini Message-Id: <20210319112218.49609-1-eesposit@redhat.com> Signed-off-by: Thomas Huth --- tests/unit/test-block-iothread.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c index 3f866a35c6..8cf172cb7a 100644 --- a/tests/unit/test-block-iothread.c +++ b/tests/unit/test-block-iothread.c @@ -89,7 +89,7 @@ static void test_sync_op_pread(BdrvChild *c) static void test_sync_op_pwrite(BdrvChild *c) { - uint8_t buf[512]; + uint8_t buf[512] = { 0 }; int ret; /* Success */ @@ -117,7 +117,7 @@ static void test_sync_op_blk_pread(BlockBackend *blk) static void test_sync_op_blk_pwrite(BlockBackend *blk) { - uint8_t buf[512]; + uint8_t buf[512] = { 0 }; int ret; /* Success */ @@ -141,7 +141,7 @@ static void test_sync_op_load_vmstate(BdrvChild *c) static void test_sync_op_save_vmstate(BdrvChild *c) { - uint8_t buf[512]; + uint8_t buf[512] = { 0 }; int ret; /* Error: Driver does not support snapshots */ -- 2.27.0