From patchwork Wed Aug 9 07:06:35 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 9889699 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B961C60363 for ; Wed, 9 Aug 2017 07:10:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD2F326BE9 for ; Wed, 9 Aug 2017 07:10:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A2366274D1; Wed, 9 Aug 2017 07:10:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 50994271CB for ; Wed, 9 Aug 2017 07:10:09 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dfL6R-0001nX-Fw; Wed, 09 Aug 2017 07:08:27 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dfL6Q-0001lI-F0 for xen-devel@lists.xen.org; Wed, 09 Aug 2017 07:08:26 +0000 Received: from [193.109.254.147] by server-9.bemta-6.messagelabs.com id E5/F7-03406-9E4BA895; Wed, 09 Aug 2017 07:08:25 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrELMWRWlGSWpSXmKPExsVyuP0Ov+7LLV2 RBpN3ylgs+biYxYHR4+ju30wBjFGsmXlJ+RUJrBlfVsxnKWjkrLg3cTFLA+Nu9i5GTg4JASOJ txP/MXUxcnEICSxklPj16RQrSIJNQFViw3UIW0RAWuLa58uMIDazQKHEye4+sLiwQJxEz/z3L CA2C1B9b+8tsKG8AqYSHz5eYIJYIC/RcWAyWA0nUHzKy+1gcSEBE4lbZ6exTWDkXsDIsIpRoz i1qCy1SNfIVC+pKDM9oyQ3MTNH19DATC83tbg4MT01JzGpWC85P3cTI9C/DECwg3HVgsBDjJI cTEqivJu0OyOF+JLyUyozEosz4otKc1KLDzHKcHAoSfDe3NwVKSRYlJqeWpGWmQMMNJi0BAeP kgjvN5A0b3FBYm5xZjpE6hSjLserCf+/MQmx5OXnpUqJ8/4GKRIAKcoozYMbAQv6S4yyUsK8j EBHCfEUpBblZpagyr9iFOdgVBLmdQPGkBBPZl4J3KZXQEcwAR0R4dsJckRJIkJKqoFxC8uGXF EJDTPVQH0xD83cJfe/Wu+/metiIOPL9dkxL2Zie5lz4lOhrUKScQoJeR39B1Utn1RLT8rcp+q tHhjl8/1kt9jBe2umXHrXlal+5+qSuhmrNuS0BD8sn7bp8CKfrFXsFxyez3hTWcmvJD9Ri/Uz D4u4rluAZy2TmUNz2ts/Ux+e91ZiKc5INNRiLipOBACVDi5wdQIAAA== X-Env-Sender: jgross@suse.com X-Msg-Ref: server-3.tower-27.messagelabs.com!1502262505!110678346!1 X-Originating-IP: [195.135.220.15] X-SpamReason: No, hits=0.5 required=7.0 tests=BODY_RANDOM_LONG X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 52741 invoked from network); 9 Aug 2017 07:08:25 -0000 Received: from mx2.suse.de (HELO mx1.suse.de) (195.135.220.15) by server-3.tower-27.messagelabs.com with DHE-RSA-CAMELLIA256-SHA encrypted SMTP; 9 Aug 2017 07:08:25 -0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 0C9F1AF0C; Wed, 9 Aug 2017 07:07:25 +0000 (UTC) From: Juergen Gross To: xen-devel@lists.xen.org Date: Wed, 9 Aug 2017 09:06:35 +0200 Message-Id: <20170809070706.13481-22-jgross@suse.com> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20170809070706.13481-1-jgross@suse.com> References: <20170809070706.13481-1-jgross@suse.com> Cc: Juergen Gross , Andrew Cooper , Jan Beulich Subject: [Xen-devel] [PATCH 21/52] xen/arch/x86/time.c: let custom parameter parsing routines return errno X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Modify the custom parameter parsing routines in: xen/arch/x86/time.c to indicate whether the parameter value was parsed successfully. Cc: Jan Beulich Cc: Andrew Cooper Signed-off-by: Juergen Gross --- xen/arch/x86/time.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c index b988b94d2e..eba7aed72d 100644 --- a/xen/arch/x86/time.c +++ b/xen/arch/x86/time.c @@ -1870,7 +1870,7 @@ int hwdom_pit_access(struct ioreq *ioreq) * tsc=skewed: Assume TSCs are individually reliable, but skewed across CPUs. * tsc=stable:socket: Assume TSCs are reliable across sockets. */ -static void __init tsc_parse(const char *s) +static int __init tsc_parse(const char *s) { if ( !strcmp(s, "unstable") ) { @@ -1882,6 +1882,10 @@ static void __init tsc_parse(const char *s) setup_clear_cpu_cap(X86_FEATURE_TSC_RELIABLE); else if ( !strcmp(s, "stable:socket") ) tsc_flags |= TSC_RELIABLE_SOCKET; + else + return -EINVAL; + + return 0; } custom_param("tsc", tsc_parse);