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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 101D2C3A5A3 for ; Thu, 29 Aug 2019 18:20:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D05F72166E for ; Thu, 29 Aug 2019 18:20:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567102805; bh=Wja6VqfCilwc3YHL7O41vyxi8Rnh2cRte0lRT6l2i8I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=YD2Dsfkq3+LQQM3f+af4nFKH/lVX1SKID/OtvhwDoKAbdIcr9SGB3fapRFjiT40Zq QQBHd7CppG60xECwe+AT3nQKPPll5JenvmpSVMrLMS+KEU2nt6vPOLNTz48Em4ryMi l9p4kOLANDnlySgsOlV4PQZngtjoGQVgJi4TmR4E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730072AbfH2SUE (ORCPT ); Thu, 29 Aug 2019 14:20:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:60150 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730271AbfH2SR5 (ORCPT ); Thu, 29 Aug 2019 14:17:57 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BA422233FF; Thu, 29 Aug 2019 18:17:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567102676; bh=Wja6VqfCilwc3YHL7O41vyxi8Rnh2cRte0lRT6l2i8I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VJiRZXXFNPWxKPtz2J15XIRBu7xUWm8ZS8gh0tOMu3c0MJNrA6koKQC+CvFOR6MWj VnYj3ZjCsCOtzsfBAvH22LEmMRDp/ZUStOagrL204DCVamsB7y8gxRvHUR9VqHvses QZpZfQEj0fmz6XCQheJVnlmXI5D+IHT24ivIfjjY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Vitaly Kuznetsov , Sasha Levin , devel@linuxdriverproject.org Subject: [PATCH AUTOSEL 4.9 12/16] Tools: hv: kvp: eliminate 'may be used uninitialized' warning Date: Thu, 29 Aug 2019 14:17:30 -0400 Message-Id: <20190829181736.9040-12-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190829181736.9040-1-sashal@kernel.org> References: <20190829181736.9040-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vitaly Kuznetsov [ Upstream commit 89eb4d8d25722a0a0194cf7fa47ba602e32a6da7 ] When building hv_kvp_daemon GCC-8.3 complains: hv_kvp_daemon.c: In function ‘kvp_get_ip_info.constprop’: hv_kvp_daemon.c:812:30: warning: ‘ip_buffer’ may be used uninitialized in this function [-Wmaybe-uninitialized] struct hv_kvp_ipaddr_value *ip_buffer; this seems to be a false positive: we only use ip_buffer when op == KVP_OP_GET_IP_INFO and it is only unset when op == KVP_OP_ENUMERATE. Silence the warning by initializing ip_buffer to NULL. Signed-off-by: Vitaly Kuznetsov Signed-off-by: Sasha Levin --- tools/hv/hv_kvp_daemon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 1774800668168..a3ac283a985ae 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -878,7 +878,7 @@ kvp_get_ip_info(int family, char *if_name, int op, int sn_offset = 0; int error = 0; char *buffer; - struct hv_kvp_ipaddr_value *ip_buffer; + struct hv_kvp_ipaddr_value *ip_buffer = NULL; char cidr_mask[5]; /* /xyz */ int weight; int i; -- 2.20.1