From patchwork Thu Jan 27 11:45:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miroslav Lichvar X-Patchwork-Id: 12726652 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6829CC433F5 for ; Thu, 27 Jan 2022 11:46:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240788AbiA0LqH (ORCPT ); Thu, 27 Jan 2022 06:46:07 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:59095 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240786AbiA0LqH (ORCPT ); Thu, 27 Jan 2022 06:46:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1643283966; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UDbTLHNTV72OAYvNxfm6AHdNXZ6OKHdc08mMN+K/M2g=; b=FMeXdiZzEGz39bdh7t6RphM/Db5rLKYyxFuSd4bHWyC32QL79M3FFiATZk1FFOCJldFKS1 7DAJrfq9itw2HHOEvNBY5WZMW+U89WOOnZ0ChIxlHkQkQszsySMF8UnFIVvehKn8kfUp6O KUFZF3wJ9eJpurs4mEniZpRkt9rmIBY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-315-BqH0NZfsPBeiSYBtx-DMWA-1; Thu, 27 Jan 2022 06:46:03 -0500 X-MC-Unique: BqH0NZfsPBeiSYBtx-DMWA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 37E1B839A42; Thu, 27 Jan 2022 11:46:02 +0000 (UTC) Received: from queeg.tpb.lab.eng.brq.redhat.com (unknown [10.43.135.229]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9E89D6E4A9; Thu, 27 Jan 2022 11:45:55 +0000 (UTC) From: Miroslav Lichvar To: netdev@vger.kernel.org Cc: Miroslav Lichvar , Yangbo Lu , Richard Cochran Subject: [PATCH net-next 5/5] ptp: start virtual clocks at current system time. Date: Thu, 27 Jan 2022 12:45:36 +0100 Message-Id: <20220127114536.1121765-6-mlichvar@redhat.com> In-Reply-To: <20220127114536.1121765-1-mlichvar@redhat.com> References: <20220127114536.1121765-1-mlichvar@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org When a virtual clock is being created, initialize the timecounter to the current system time instead of the Unix epoch to avoid very large steps when the clock will be synchronized. Signed-off-by: Miroslav Lichvar Cc: Yangbo Lu Cc: Richard Cochran --- drivers/ptp/ptp_vclock.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ptp/ptp_vclock.c b/drivers/ptp/ptp_vclock.c index cb179a3ea508..5a24a5128013 100644 --- a/drivers/ptp/ptp_vclock.c +++ b/drivers/ptp/ptp_vclock.c @@ -187,7 +187,8 @@ struct ptp_vclock *ptp_vclock_register(struct ptp_clock *pclock) return NULL; } - timecounter_init(&vclock->tc, &vclock->cc, 0); + timecounter_init(&vclock->tc, &vclock->cc, + ktime_to_ns(ktime_get_real())); ptp_schedule_worker(vclock->clock, PTP_VCLOCK_REFRESH_INTERVAL); return vclock;