From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Linux USB <linux-usb@vger.kernel.org>
Subject: usb: gadget: functions: add ftrace export over USB
Date: Thu, 21 Mar 2019 10:59:49 +0100 [thread overview]
Message-ID: <20190321095949.GC2836@kroah.com> (raw)
On Thu, Mar 21, 2019 at 11:47:48AM +0200, Felipe Balbi wrote:
> Allow for ftrace data to be exported over a USB Gadget
> Controller. With this, we have a potentially very fast pipe for
> transmitting ftrace data to a Host PC for further analysis.
>
> Note that in order to decode the data, one needs access to kernel
> symbols in order to convert binary data into function names and what
> not.
>
> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
> ---
> drivers/usb/gadget/Kconfig | 15 +
> drivers/usb/gadget/function/Makefile | 2 +
> drivers/usb/gadget/function/f-trace.c | 401 ++++++++++++++++++++++++++
> 3 files changed, 418 insertions(+)
> create mode 100644 drivers/usb/gadget/function/f-trace.c
This is funny, nice work :)
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
next reply other threads:[~2019-03-21 9:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-21 9:59 Greg Kroah-Hartman [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-03-22 0:59 usb: gadget: functions: add ftrace export over USB kbuild test robot
2019-03-21 11:25 Felipe Balbi
2019-03-21 10:03 Greg Kroah-Hartman
2019-03-21 9:50 Felipe Balbi
2019-03-21 9:47 Felipe Balbi
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