linux-kernel - Re: [PATCH v2] usb: gadget: u_serial: improve performance for large data

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Message-ID: <20200617051422.GA1331778@kroah.com>
Date:   Wed, 17 Jun 2020 07:14:22 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Macpaul Lin <macpaul.lin@...iatek.com>
Cc:     Alan Stern <stern@...land.harvard.edu>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Felipe Balbi <balbi@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Sergey Organov <sorganov@...il.com>,
        Fabrice Gasnier <fabrice.gasnier@...com>,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mediatek WSD Upstream <wsd_upstream@...iatek.com>,
        Macpaul Lin <macpaul.lin@...il.com>
Subject: Re: [PATCH v2] usb: gadget: u_serial: improve performance for large
 data

On Wed, Jun 17, 2020 at 10:46:47AM +0800, Macpaul Lin wrote:
> Nowadays some embedded systems use VCOM to transfer large log and data.
> Take LTE MODEM as an example, during the long debugging stage, large
> log and data were transfer through VCOM when doing field try or in
> operator's lab. Here we suggest slightly increase the transfer buffer
> in u_serial.c for performance improving.
> 
> Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
> ---
>  drivers/usb/gadget/function/u_serial.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)

What changed from v1?  Always put that below the --- line as the
documentation asks for.

v3?