From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65EF9C5DF61 for ; Thu, 7 Nov 2019 10:19:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 242CA214D8 for ; Thu, 7 Nov 2019 10:19:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573121958; bh=veSNy8fHpebcc4Qmp98qkfhKdLnCD3QplNB+Rkjzb38=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=oKMnOMErnFgdDEuU8hXf6YYToDF6Q/PwFKbnk0SMeW73fHiyHjqOOLrXGoCouDb9Y 8+u476pjMOzcMokOdgezxnI3p/+bGBbxVWwypiZi8WA894aajsFP/rZZj0GC1UxB16 gvEggByNliKqP3QR2GOYZYWADyVStNsXj7gIU40g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387802AbfKGKTL (ORCPT ); Thu, 7 Nov 2019 05:19:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:34958 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727632AbfKGKTK (ORCPT ); Thu, 7 Nov 2019 05:19:10 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 22BF42084D; Thu, 7 Nov 2019 10:19:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573121949; bh=veSNy8fHpebcc4Qmp98qkfhKdLnCD3QplNB+Rkjzb38=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=o5HR5UtWgEVSoCewOeCOvQ+7niFoy1nWzZPd9rnyhJlit/8XKLlyRkgKP+RW4/ARv HU7XR8MtpDVdY6aDdGNgaMpeCijUFZ4hKWFojxo61Cf2PySQZKiJkV6iRoJgNtfzRi PZmi9vfl+T1Q3if4yW5hU8ym1X3VqIneyMPoJIaI= Date: Thu, 7 Nov 2019 11:19:07 +0100 From: Greg Kroah-Hartman To: Andrey Konovalov Cc: linux-usb@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Vyukov , Alan Stern , "Michael S . Tsirkin" , Jason Wang , Andrew Morton , Arnd Bergmann , Steven Rostedt , David Windsor , Elena Reshetova , Anders Roxell , Alexander Potapenko , Marco Elver Subject: Re: [PATCH v3 2/3] usb, kcov: collect coverage from hub_event Message-ID: <20191107101907.GA1365996@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.2 (2019-09-21) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Tue, Oct 29, 2019 at 05:32:28PM +0100, Andrey Konovalov wrote: > This patch adds kcov_remote_start()/kcov_remote_stop() annotations to the > hub_event() function, which is responsible for processing events on USB > buses, in particular events that happen during USB device enumeration. > Since hub_event() is run in a global background kernel thread (see > Documentation/dev-tools/kcov.rst for details), each USB bus gets a unique > global handle from the USB subsystem kcov handle range. As the result kcov > can now be used to collect coverage from events that happen on a > particular USB bus. > > Signed-off-by: Andrey Konovalov > --- > drivers/usb/core/hub.c | 5 +++++ > 1 file changed, 5 insertions(+) Reviewed-by: Greg Kroah-Hartman