From nobody Thu Nov 13 03:24:16 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1576515188; cv=none; d=zohomail.com; s=zohoarc; b=BXkzbHtVmVBQykwCzExPkrYyopbpnsV2g5+db70xnSLuYMnVx9BssJADLLMHG++vaRtHxfz0HNSNrGB5uel/wwmnxqWsS9Q0cOmBSqqPWyjBEy+FltGCdcOUFa0z60g8rKDSpO6IWHz9NW3GGQ2+BEVZ+EE/nmNAQTS1KKRzJAk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1576515188; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=WjRgIZ5qePVVbis5wVrr7iekZjJDuuFlCCqKYtN7ZTM=; b=KVUf/9RIcDVcQl4k835xJvTQwLm5rW5q03Wd1kWKoe9S9XbMlNEagTpjguIomaHNvvcXfdGpmPbAp5KsFBz4HZYA2h4Wo0J8qUzuBh6CrpaI8ZYY9YdPAtqRyogM/kRmAyx7cdxWCc59/7XQrBIBL50PKmO4xt8ufvfUyfF+XaE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1576515188800173.05584154239068; Mon, 16 Dec 2019 08:53:08 -0800 (PST) Received: from localhost ([::1]:56866 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1igtcI-0000H5-Ry for importer@patchew.org; Mon, 16 Dec 2019 11:53:06 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57039) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1igtFM-0005OV-43 for qemu-devel@nongnu.org; Mon, 16 Dec 2019 11:29:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1igtFL-00081d-15 for qemu-devel@nongnu.org; Mon, 16 Dec 2019 11:29:24 -0500 Received: from mail-wm1-x331.google.com ([2a00:1450:4864:20::331]:39552) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1igtFK-0007zL-QR for qemu-devel@nongnu.org; Mon, 16 Dec 2019 11:29:22 -0500 Received: by mail-wm1-x331.google.com with SMTP id b72so5375224wme.4 for ; Mon, 16 Dec 2019 08:29:22 -0800 (PST) Received: from 640k.lan ([93.56.166.5]) by smtp.gmail.com with ESMTPSA id q68sm19962334wme.14.2019.12.16.08.29.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 16 Dec 2019 08:29:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WjRgIZ5qePVVbis5wVrr7iekZjJDuuFlCCqKYtN7ZTM=; b=JUmXWaGMzO8UioG9KTKHtW8U23SKuq2LL0XPNjgreOg/xDgEPalF08ohbjPtnygXhC W2LaV4gVSGBUx2rCOCjr3kLzijti5gHNf3s68tcWtved7qcjFXBDKdKtz/YcYqdUPbQR Z/OFE40Xg8iuxYH3SROVULykBVmZiv+AGDGytC7qDKzthAb3Y9DUpXCRzbbrWSvX7A2a U3GJlMmNpYQoAjiHp0b2m4hkJoGAq6EVQ7kZtvyMCeWAnZ3qzrMq6fgsbU8c+m6wybrA eP/GHvHdYFO83W4tlgqND+eYh5M1ADB3l/CKVy6Q50fXnGmwCfx4lMPydmPnegXWoBEe KyIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=WjRgIZ5qePVVbis5wVrr7iekZjJDuuFlCCqKYtN7ZTM=; b=J/oVxWya/kDjugQ2zIiTTZKpcJWuFfgWJJfxy/1CZ+aKc3SSMZh5zgTx2H1qvPPomg xVJnJbIvX0TJ3ULdkzhgVRfqm/N5UJ2hp3YrGM5HEZ2FlLV1dUK5oDgDhzp7LgWM3zOL rPnYepW5BJC+g+NQ/puHvXhtctsqvhmN+rQtsUAsGfnDsbLuBsopbEY5WDctVWE5GOWS ciLQf6xxy6bixcd3yDj5PxSIM/cheLdo8E69Tf4g8LJS5gMXP2kH0JRgaD9wBYJ4B/iS 9IuqNbBQoRGHwRG98Lv2ZrNnVJDlLA//ez8dD9IdW/LRj9/mayHMWqOy6fbDHUuzPRb/ lb2w== X-Gm-Message-State: APjAAAXwD6IDe9EyN3VkcnwGlluTCBiSWzUXdH8NtytSXAJlTGiykchH Tjq34NNyy8K7zqHD35a9yjk4qW4L X-Google-Smtp-Source: APXvYqx3510oLGQATAh3ke9cWF1UswFWulfF2GCgbVkCjbtmt6zIBnAsMvR/OeYcWjdSn6mg8iLPow== X-Received: by 2002:a1c:ed0e:: with SMTP id l14mr30231145wmh.74.1576513761680; Mon, 16 Dec 2019 08:29:21 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 34/62] migration: fix maybe-uninitialized warning Date: Mon, 16 Dec 2019 17:28:18 +0100 Message-Id: <1576513726-53700-35-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1576513726-53700-1-git-send-email-pbonzini@redhat.com> References: <1576513726-53700-1-git-send-email-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::331 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Marc-Andr=C3=A9 Lureau ../migration/ram.c: In function =E2=80=98multifd_recv_thread=E2=80=99: /home/elmarco/src/qq/include/qapi/error.h:165:5: error: =E2=80=98block=E2= =80=99 may be used uninitialized in this function [-Werror=3Dmaybe-uninitia= lized] 165 | error_setg_internal((errp), __FILE__, __LINE__, __func__, \ | ^~~~~~~~~~~~~~~~~~~ ../migration/ram.c:818:15: note: =E2=80=98block=E2=80=99 was declared here 818 | RAMBlock *block; | ^~~~~ Signed-off-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Paolo Bonzini --- migration/ram.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index 5078f94..7dd7f81 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -864,15 +864,17 @@ static int multifd_recv_unfill_packet(MultiFDRecvPara= ms *p, Error **errp) p->next_packet_size =3D be32_to_cpu(packet->next_packet_size); p->packet_num =3D be64_to_cpu(packet->packet_num); =20 - if (p->pages->used) { - /* make sure that ramblock is 0 terminated */ - packet->ramblock[255] =3D 0; - block =3D qemu_ram_block_by_name(packet->ramblock); - if (!block) { - error_setg(errp, "multifd: unknown ram block %s", - packet->ramblock); - return -1; - } + if (p->pages->used =3D=3D 0) { + return 0; + } + + /* make sure that ramblock is 0 terminated */ + packet->ramblock[255] =3D 0; + block =3D qemu_ram_block_by_name(packet->ramblock); + if (!block) { + error_setg(errp, "multifd: unknown ram block %s", + packet->ramblock); + return -1; } =20 for (i =3D 0; i < p->pages->used; i++) { --=20 1.8.3.1