From: Greg Kroah-Hartman <gregkh@linuxfoundation•org>
To: Andrey Konovalov <andreyknvl@google•com>
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 <dvyukov@google•com>,
Alan Stern <stern@rowland•harvard.edu>,
"Michael S . Tsirkin" <mst@redhat•com>,
Jason Wang <jasowang@redhat•com>,
Andrew Morton <akpm@linux-foundation•org>,
Arnd Bergmann <arnd@arndb•de>,
Steven Rostedt <rostedt@goodmis•org>,
David Windsor <dwindsor@gmail•com>,
Elena Reshetova <elena.reshetova@intel•com>,
Anders Roxell <anders.roxell@linaro•org>,
Alexander Potapenko <glider@google•com>,
Marco Elver <elver@google•com>
Subject: Re: [PATCH v3 2/3] usb, kcov: collect coverage from hub_event
Date: Thu, 7 Nov 2019 11:19:07 +0100 [thread overview]
Message-ID: <20191107101907.GA1365996@kroah.com> (raw)
In-Reply-To: <de4fe1c219db2d002d905dc1736e2a3bfa1db997.1572366574.git.andreyknvl@google.com>
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 <andreyknvl@google•com>
> ---
> drivers/usb/core/hub.c | 5 +++++
> 1 file changed, 5 insertions(+)
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation•org>
next prev parent reply other threads:[~2019-11-07 10:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 16:32 [PATCH v3 0/3] kcov: collect coverage from usb and vhost Andrey Konovalov
2019-10-29 16:32 ` [PATCH v3 1/3] kcov: remote coverage support Andrey Konovalov
2019-10-29 16:32 ` [PATCH v3 2/3] usb, kcov: collect coverage from hub_event Andrey Konovalov
2019-11-07 10:19 ` Greg Kroah-Hartman [this message]
2019-10-29 16:32 ` [PATCH v3 3/3] vhost, kcov: collect coverage from vhost_worker Andrey Konovalov
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