Re: [PATCH] tty: serial: Use fifo in 8250 console driver

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On Wed, Jan 26, 2022 at 9:10 AM Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
>
> On Wed, Jan 26, 2022 at 09:52:26AM +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 25, 2022 at 03:40:36PM -0300, Wander Costa wrote:
> > > On Tue, Jan 25, 2022 at 1:56 PM Andy Shevchenko
> > > <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> > > >
> > > > On Tue, Jan 25, 2022 at 06:53:48PM +0200, Andy Shevchenko wrote:
> > > > > On Tue, Jan 25, 2022 at 12:40:27PM +0000, Jon Hunter wrote:
> > > > > > On 25/01/2022 10:29, Wander Costa wrote:
> > > >
> > > > ...
> > > >
> > > > > > Andy, does this work for X86?
> > > > >
> > > > > Reported-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> > > > >
> > > > > No, it does NOT fix an issue (I see it on a handful x86) with the legacy UART
> > > > > (means the 8250_pnp is in use). And I believe the same will be the case on LPSS
> > > > > ones (8250_dw / 8250_lpss) and HSU (8250_mid), because the patch influences on
> > > > > all of them.
> > > >
> > > > Shall I send a revert and we can continue with a new approach later on?
> > > >
> > >
> > > Tomorrow (or maybe after tomorrow) I am going to post the fixes I
> > > already have, and an additional patch adding a build option
> > > (disabled to default) so people maybe if they want to use the FIFO on
> > > console write. But I understand if people decide to go
> > > ahead and revert the patch.
> >
> > Let me revert this for now.  And no new config options please, this
> > should "just work".
>
> Thanks!
>
> Wander, if you need a test for something new, I may help to perform on
> our (sub)set of x86 machines.
>

Thanks, Andy. I will let you know when I have new patches.




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