From nobody Tue Feb 10 03:40:13 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1711621477; cv=none; d=zohomail.com; s=zohoarc; b=joJ3DESWZ0dZn635Gx8i3fyyC8G+D76TTZXio1l2R0A8z0cbZTUC0n5kS+XNEDCaZNKT3w5fe4mAK3fcQyzzwvxEwdmmmsgdnE0kIRgzInmDK+Os1p9KK0IIhC8LLLF2nsJGo0OPBKdpJZ95ReN/+Ed5QyUC/Xk/DdqkZzGxO4k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1711621477; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Yq8tTYx/XLUB4Gx0moxVhK0EJnB47ElooeGni6U2KHU=; b=EqTrb/szyzGIg+aLMo6cBycLU3qBaIIM7ATJoNq5DQ39KYQXNv97ZOrPuYI01rTEFG8OeWGP6eI/o0y9r9zJLwrkhdqaYBw1kkWtl169PV0f79wStwtIu36HlDzHXLrSJhaIzyGFVupK8/lfVr/f+HIzDQhOQr0DFKDb6SyyJOQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 171162147796218.45252311670845; Thu, 28 Mar 2024 03:24:37 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rpmvo-0001qc-2C; Thu, 28 Mar 2024 06:24:24 -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 1rpmvm-0001ft-SO for qemu-devel@nongnu.org; Thu, 28 Mar 2024 06:24:22 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rpmve-00081z-Ib for qemu-devel@nongnu.org; Thu, 28 Mar 2024 06:24:15 -0400 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-668--SLuRppQOwuCV8NX8L6XsQ-1; Thu, 28 Mar 2024 06:24:11 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (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 3EBF6811E81; Thu, 28 Mar 2024 10:24:10 +0000 (UTC) Received: from localhost (unknown [10.39.208.34]) by smtp.corp.redhat.com (Postfix) with ESMTP id 45E373C20; Thu, 28 Mar 2024 10:24:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1711621454; 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=Yq8tTYx/XLUB4Gx0moxVhK0EJnB47ElooeGni6U2KHU=; b=Muu9yLsCTY52Cl8uY5wFx4raKN2Zd5ttyp0m2w0ITaVBFtseRCFOgWb5mEfXt18Gqwh/1Y p5n/pMpYH5GON8rQjuBN7VJZT9jQF5YdvO8XwvJF9c+C8s2O/sTwR4LuqoztGKr7pM06px WajW3VfgEnuq6vmgZSL9Jtus4D3gXxs= X-MC-Unique: -SLuRppQOwuCV8NX8L6XsQ-1 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=20P=C3=A9rez?= , Bin Meng , Hanna Reitz , Eric Blake , "Michael S. Tsirkin" , Stefan Hajnoczi , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yuval Shaia , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Jesper Devantier , Pierrick Bouvier , Keith Busch , Marcel Apfelbaum , Alexandre Iooss , Peter Xu , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 17/19] hw/nvme: fix -Werror=maybe-uninitialized Date: Thu, 28 Mar 2024 14:20:50 +0400 Message-ID: <20240328102052.3499331-18-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 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 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; Received-SPF: pass client-ip=170.10.133.124; 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=ham 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1711621478995100003 From: Marc-Andr=C3=A9 Lureau ../hw/nvme/ctrl.c:6081:21: error: =E2=80=98result=E2=80=99 may be used unin= itialized [-Werror=3Dmaybe-uninitialized] It's not obvious that 'result' is set in all code paths. When &result is a returned argument, it's even less clear. Looking at various assignments, 0 seems to be a suitable default value. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Klaus Jensen --- hw/nvme/ctrl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index c2b17de987..127c3d2383 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -5894,7 +5894,7 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeReq= uest *req) uint32_t dw10 =3D le32_to_cpu(cmd->cdw10); uint32_t dw11 =3D le32_to_cpu(cmd->cdw11); uint32_t nsid =3D le32_to_cpu(cmd->nsid); - uint32_t result; + uint32_t result =3D 0; uint8_t fid =3D NVME_GETSETFEAT_FID(dw10); NvmeGetFeatureSelect sel =3D NVME_GETFEAT_SELECT(dw10); uint16_t iv; --=20 2.44.0