linux-kernel - Re: [PATCH v8 0/5] usb: early: add support for early printk through USB3 debug port

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Date:   Wed, 22 Mar 2017 10:23:31 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>,
        tglx@...utronix.de, peterz@...radead.org,
        linux-usb@...r.kernel.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, Johan Hovold <johan@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH v8 0/5] usb: early: add support for early printk through
 USB3 debug port

Hi,

On 03/21/2017 07:33 PM, Ingo Molnar wrote:
>> Lu Baolu (5):
>> >   x86: add simple udelay calibration
>> >   usb: early: add driver for xhci debug capability
>> >   x86: add support for earlyprintk via USB3 debug port
>> >   usb: serial: add dbc debug device support to usb_debug
>> >   usb: doc: add document for USB3 debug port usage
>> > 
>> >  Documentation/admin-guide/kernel-parameters.txt |    1 +
>> >  Documentation/usb/usb3-debug-port.rst           |  100 +++
>> >  arch/x86/Kconfig.debug                          |   23 +
>> >  arch/x86/kernel/early_printk.c                  |    5 +
>> >  arch/x86/kernel/setup.c                         |   26 +
>> >  drivers/usb/Makefile                            |    2 +-
>> >  drivers/usb/early/Makefile                      |    1 +
>> >  drivers/usb/early/xhci-dbc.c                    | 1014 +++++++++++++++++++++++
>> >  drivers/usb/early/xhci-dbc.h                    |  211 +++++
>> >  drivers/usb/serial/usb_debug.c                  |   28 +-
>> >  include/linux/usb/xhci-dbgp.h                   |   29 +
>> >  11 files changed, 1436 insertions(+), 4 deletions(-)
>> >  create mode 100644 Documentation/usb/usb3-debug-port.rst
>> >  create mode 100644 drivers/usb/early/xhci-dbc.c
>> >  create mode 100644 drivers/usb/early/xhci-dbc.h
>> >  create mode 100644 include/linux/usb/xhci-dbgp.h
> Ok, this has now become a high quality series with picture-perfect patches AFAICS. 
>
> Thomas also gave his Acked-by to all the patches.
>
> I've applied them locally to -tip (it appears the USB maintainers are still fine 
> with this being carried in tip:x86/debug for a v4.12 merge, right?), and will push 
> them out and will propagate them to linux-next as well if they pass testing.
>
> Thanks for the great work!

Thank you!

Best regards,
Lu Baolu