From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: "Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Jiri Slaby" <jirislaby@kernel.org>,
"open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Jan Kundrát" <jan.kundrat@cesnet.cz>,
"Mark Brown" <broonie@kernel.org>,
linux-spi <linux-spi@vger.kernel.org>
Subject: Re: [PATCH] serial: max310x: rework RX interrupt handling
Date: Fri, 2 Oct 2020 14:40:47 +0200 [thread overview]
Message-ID: <20201002124047.GA3348062@kroah.com> (raw)
In-Reply-To: <CAHp75VdU5N6dBKgDudod+0cHumAreHCHgi1+xGqXtvpkiLNz0Q@mail.gmail.com>
On Wed, Sep 30, 2020 at 05:54:15PM +0300, Andy Shevchenko wrote:
> On Wed, Sep 30, 2020 at 5:50 PM Thomas Petazzoni
> <thomas.petazzoni@bootlin.com> wrote:
> > On Wed, 30 Sep 2020 17:24:48 +0300
> > Andy Shevchenko <andy.shevchenko@gmail.com> wrote:
>
> > > > On a Microchip SAMA5D3 platform that is receiving 20 bytes every 16ms
> > > > over one MAX310X UART, this patch has allowed to reduce the CPU
> > > > consumption of the interrupt handler thread from ~25% to 6-7%.
> > >
> > > Was it always like this?
> >
> > As far as I can see, yes. I guess you were thinking about a Fixes: tag
> > perhaps? I don't think a Fixes: tag really applies here, as we're not
> > fixing a performance regression.
>
> Thanks for elaboration.
>
> ...
>
> > > > + /* Reset FIFOs*/
> > >
> > > Add a space before the asterisk.
> >
> > Indeed. Let me know if a v2 is needed, or if this small typo can be
> > fixed when applying.
>
> Greg usually doesn't touch commits, so v2 would be better.
Agreed, I don't like to edit things :)
prev parent reply other threads:[~2020-10-02 12:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 13:51 [PATCH] serial: max310x: rework RX interrupt handling Thomas Petazzoni
2020-09-30 14:24 ` Andy Shevchenko
2020-09-30 14:50 ` Thomas Petazzoni
2020-09-30 14:54 ` Andy Shevchenko
2020-10-02 12:40 ` Greg Kroah-Hartman [this message]
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