From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932276AbdJ2U7t (ORCPT ); Sun, 29 Oct 2017 16:59:49 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:45418 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932227AbdJ2U7s (ORCPT ); Sun, 29 Oct 2017 16:59:48 -0400 Date: Sun, 29 Oct 2017 21:59:58 +0100 From: Greg KH To: kys@microsoft.com Cc: linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, jasowang@redhat.com, leann.ogasawara@canonical.com, marcelo.cerri@canonical.com, sthemmin@microsoft.com Subject: Re: [PATCH 10/17] hyper-v: trace vmbus_open() Message-ID: <20171029205958.GA30187@kroah.com> References: <20171029192030.12356-1-kys@exchange.microsoft.com> <20171029192116.12466-1-kys@exchange.microsoft.com> <20171029192116.12466-10-kys@exchange.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171029192116.12466-10-kys@exchange.microsoft.com> User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Oct 29, 2017 at 12:21:09PM -0700, kys@exchange.microsoft.com wrote: > From: Vitaly Kuznetsov > > Add tracepoint to CHANNELMSG_OPENCHANNEL sender. > > Signed-off-by: Vitaly Kuznetsov > Signed-off-by: K. Y. Srinivasan > --- > drivers/hv/channel.c | 2 ++ > drivers/hv/hv_trace.h | 27 +++++++++++++++++++++++++++ > 2 files changed, 29 insertions(+) > > diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c > index a406beb10dd0..739b3fe1e0fb 100644 > --- a/drivers/hv/channel.c > +++ b/drivers/hv/channel.c > @@ -185,6 +185,8 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, > ret = vmbus_post_msg(open_msg, > sizeof(struct vmbus_channel_open_channel), true); > > + trace_vmbus_open(open_msg, ret); Why add tracepoints for things that ftrace can handle automatically?