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[23.128.96.18]) by mx.google.com with ESMTP id u1si6713075eda.219.2020.08.24.07.52.30; Mon, 24 Aug 2020 07:52:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726225AbgHXOvh (ORCPT + 99 others); Mon, 24 Aug 2020 10:51:37 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:55398 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725780AbgHXOvg (ORCPT ); Mon, 24 Aug 2020 10:51:36 -0400 Received: by mail-wm1-f65.google.com with SMTP id a65so5023497wme.5; Mon, 24 Aug 2020 07:51:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=QMn36lEK3PWC13P8wKJfZOwdzKidi6t+GQ3+6i3moX8=; b=Zk4nMaQdAYQf+dBcV3esM9orPtDaZJ5Cnctad9on217znwkESjCtX0t/UbqNRX/JN7 8rjvMY1crZ/amx59m5xVQt6iv5nuMd4NAsqoPviAWzLQ/x8NHPQHAwAVxr6WxauJI0nt Cj4PE9tD0OCYP8OQA/oBT8mTUCc6iZXzjg+2k+lhaACW7q7UINIJXewOIojkAUYxgoL5 g8Fbpf82xhn8HDQ3vcqEB25rq4wtR/7tnEYoQqZCmkYurTiUQ4hLngqWGeDV4andooif mf4C0Z3A7DrZZwGBehgOwfSQeoMxlTVPCpvRcRQw2GPx+gawb2CIRfDnB+0xU25etH1h Ev5Q== X-Gm-Message-State: AOAM531srcvxcLEqlbWAvjvVswIDlD3iQ8uk/Uyydgq1WnAgX/q19JBZ sQEQVLYTV2KdAJO/EjDVToc= X-Received: by 2002:a1c:f30f:: with SMTP id q15mr6002258wmq.60.1598280694559; Mon, 24 Aug 2020 07:51:34 -0700 (PDT) Received: from liuwe-devbox-debian-v2 ([51.145.34.42]) by smtp.gmail.com with ESMTPSA id 5sm13898438wmz.22.2020.08.24.07.51.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2020 07:51:33 -0700 (PDT) Date: Mon, 24 Aug 2020 14:51:32 +0000 From: Wei Liu To: Michael Kelley Cc: Vineeth Pillai , Haiyang Zhang , Stephen Hemminger , Wei Liu , KY Srinivasan , "linux-hyperv@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v2] hv_utils: return error if host timesysnc update is stale Message-ID: <20200824145132.bn73cw7j6hzhb7ml@liuwe-devbox-debian-v2> References: <20200821152523.99364-1-viremana@linux.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 21, 2020 at 03:44:24PM +0000, Michael Kelley wrote: > From: viremana@linux.microsoft.com Sent: Friday, August 21, 2020 8:25 AM > > > > If for any reason, host timesync messages were not processed by > > the guest, hv_ptp_gettime() returns a stale value and the > > caller (clock_gettime, PTP ioctl etc) has no means to know this > > now. Return an error so that the caller knows about this. > > > > Signed-off-by: Vineeth Pillai > > --- > > > > v2: > > - Fix warnings reported by Kernel test robot > > - s/pr_warn/pr_warn_once/ > > > > --- > > drivers/hv/hv_util.c | 46 +++++++++++++++++++++++++++++++++----------- > > 1 file changed, 35 insertions(+), 11 deletions(-) > > Reviewed-by: Michael Kelley Applied to hyperv-fixes. Thanks.