From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from emea01-db3-obe.outbound.protection.outlook.com (mail-db3on0071.outbound.protection.outlook.com [157.55.234.71]) by dpdk.org (Postfix) with ESMTP id ECB672A9 for ; Mon, 8 Dec 2014 10:02:09 +0100 (CET) Received: from DB4PR02CA0046.eurprd02.prod.outlook.com (10.242.174.174) by DB4PR02MB0591.eurprd02.prod.outlook.com (10.242.223.15) with Microsoft SMTP Server (TLS) id 15.1.31.17; Mon, 8 Dec 2014 09:02:08 +0000 Received: from DB3FFO11FD039.protection.gbl (2a01:111:f400:7e04::186) by DB4PR02CA0046.outlook.office365.com (2a01:111:e400:983b::46) with Microsoft SMTP Server (TLS) id 15.1.31.17 via Frontend Transport; Mon, 8 Dec 2014 09:02:09 +0000 Received: from bjgfarm-1.internal.tilera.com (124.207.145.166) by DB3FFO11FD039.mail.protection.outlook.com (10.47.217.70) with Microsoft SMTP Server (TLS) id 15.1.26.17 via Frontend Transport; Mon, 8 Dec 2014 09:02:07 +0000 Received: (from zlu@localhost) by bjgfarm-1.internal.tilera.com (8.14.4/8.14.4/Submit) id sB8921lB025275; Mon, 8 Dec 2014 17:02:01 +0800 From: Zhigang Lu To: Date: Mon, 8 Dec 2014 16:59:38 +0800 Message-ID: <1418029178-25162-16-git-send-email-zlu@ezchip.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1418029178-25162-1-git-send-email-zlu@ezchip.com> References: <1418029178-25162-1-git-send-email-zlu@ezchip.com> X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:124.207.145.166; CTRY:CN; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(199003)(189002)(2351001)(106466001)(20776003)(89996001)(47776003)(97736003)(48376002)(31966008)(50466002)(62966003)(77156002)(19580405001)(6806004)(4396001)(50226001)(107046002)(229853001)(86362001)(92566001)(19580395003)(105606002)(33646002)(68736005)(64706001)(36756003)(46102003)(120916001)(42186005)(21056001)(50986999)(84676001)(76176999)(99396003)(104016003)(110136001)(87936001)(9376004); DIR:OUT; SFP:1101; SCL:1; SRVR:DB4PR02MB0591; H:bjgfarm-1.internal.tilera.com; FPR:; SPF:Fail; MLV:sfv; PTR:InfoDomainNonexistent; A:1; MX:1; LANG:en; MIME-Version: 1.0 Content-Type: text/plain X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:DB4PR02MB0591; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(602002); SRVR:DB4PR02MB0591; X-Forefront-PRVS: 041963B986 Received-SPF: Fail (protection.outlook.com: domain of ezchip.com does not designate 124.207.145.166 as permitted sender) receiver=protection.outlook.com; client-ip=124.207.145.166; helo=bjgfarm-1.internal.tilera.com; Authentication-Results: spf=fail (sender IP is 124.207.145.166) smtp.mailfrom=zlu@ezchip.com; X-Exchange-Antispam-Report-CFA-Test: BCL:0;PCL:0;RULEID:;SRVR:DB4PR02MB0591; X-OriginatorOrg: ezchip.com X-Mailman-Approved-At: Mon, 08 Dec 2014 10:20:50 +0100 Cc: Cyril Chemparathy Subject: [dpdk-dev] [PATCH 15/15] eal: allow empty set of compile time cpuflags X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Dec 2014 09:02:10 -0000 On architectures that do not rely on RTE_COMPILE_TIME_CPUFLAGS, the compile_time_flags[] array can end up being zero sized. This results in a compiler complaint in the subsequent loop. Pulling out the array size computation silences this complaint. Signed-off-by: Zhigang Lu Signed-off-by: Cyril Chemparathy --- lib/librte_eal/common/eal_common_cpuflags.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/librte_eal/common/eal_common_cpuflags.c b/lib/librte_eal/common/eal_common_cpuflags.c index 6fd360c..7a1ca26 100644 --- a/lib/librte_eal/common/eal_common_cpuflags.c +++ b/lib/librte_eal/common/eal_common_cpuflags.c @@ -62,10 +62,12 @@ rte_cpu_check_supported(void) static const enum rte_cpu_flag_t compile_time_flags[] = { RTE_COMPILE_TIME_CPUFLAGS }; + unsigned count = + sizeof(compile_time_flags)/sizeof(compile_time_flags[0]); unsigned i; int ret; - for (i = 0; i < sizeof(compile_time_flags)/sizeof(compile_time_flags[0]); i++) { + for (i = 0; i < count; i++) { ret = rte_cpu_get_flag_enabled(compile_time_flags[i]); if (ret < 0) { -- 2.1.2