From patchwork Thu Mar 28 10:20:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1917273 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Fj+r45tc; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4V505y36Jkz1yWr for ; Thu, 28 Mar 2024 21:24:54 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rpmvv-0002yt-EI; Thu, 28 Mar 2024 06:24:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rpmvu-0002s4-DO for qemu-devel@nongnu.org; Thu, 28 Mar 2024 06:24:30 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rpmvs-00083l-Cb for qemu-devel@nongnu.org; Thu, 28 Mar 2024 06:24:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1711621467; 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=ZaMpwY19pcCqO5xFBKSdLJ7yo1YyaKqcLtzVGkXev9w=; b=Fj+r45tcqU2At9iaZWj8H9QjL1LzEA5MMsG6OcFwSqWU/ReqHIYi3bqrpUL6mttTOPdXU/ jnsJQas4D8UBhJ4TYdtdp8lWLkE7wMjdmn474Rz5y7ir574bQjHiRTBdNBc7c53+6F3BZg RolLOc9uxY1j1EMWw5nIx4rCO1OOcfU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-439-gyoeTz-gOLi9TDKS68wy6g-1; Thu, 28 Mar 2024 06:24:20 -0400 X-MC-Unique: gyoeTz-gOLi9TDKS68wy6g-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4091A800264; Thu, 28 Mar 2024 10:24:19 +0000 (UTC) Received: from localhost (unknown [10.39.208.34]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6E5681C060DC; Thu, 28 Mar 2024 10:24:17 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: Hyman Huang , Vladimir Sementsov-Ogievskiy , Paolo Bonzini , Gerd Hoffmann , qemu-block@nongnu.org, Kevin Wolf , Fabiano Rosas , Mahmoud Mandour , John Snow , Klaus Jensen , Fam Zheng , =?utf-8?q?Eugenio_P=C3=A9rez?= , Bin Meng , Hanna Reitz , Eric Blake , "Michael S. Tsirkin" , Stefan Hajnoczi , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Yuval Shaia , =?utf-8?q?Alex_Benn=C3=A9e?= , Jesper Devantier , Pierrick Bouvier , Keith Busch , Marcel Apfelbaum , Alexandre Iooss , Peter Xu , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= Subject: [PATCH 18/19] hw/virtio: fix -Werror=maybe-uninitialized Date: Thu, 28 Mar 2024 14:20:51 +0400 Message-ID: <20240328102052.3499331-19-marcandre.lureau@redhat.com> In-Reply-To: <20240328102052.3499331-1-marcandre.lureau@redhat.com> References: <20240328102052.3499331-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau ../hw/virtio/vhost-shadow-virtqueue.c:545:13: error: ‘r’ may be used uninitialized [-Werror=maybe-uninitialized] '&r' is not guaranteed to be assigned when calling -Werror=maybe-uninitialized. Signed-off-by: Marc-André Lureau --- hw/virtio/vhost-shadow-virtqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-virtqueue.c index fc5f408f77..cd29cc795b 100644 --- a/hw/virtio/vhost-shadow-virtqueue.c +++ b/hw/virtio/vhost-shadow-virtqueue.c @@ -526,7 +526,7 @@ static void vhost_svq_flush(VhostShadowVirtqueue *svq, size_t vhost_svq_poll(VhostShadowVirtqueue *svq, size_t num) { size_t len = 0; - uint32_t r; + uint32_t r = 0; while (num--) { int64_t start_us = g_get_monotonic_time();