Re: [PATCH 0/2] serial: sh-sci: Fix .flush_buffer() issues

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Geert,

On Fri, Jun 28, 2019 at 01:51:25PM +0200, Geert Uytterhoeven wrote:

[..]

> If a serial port is used as a console, the port is used for both DMA
> (normal use) and PIO (serial console output).  The latter can have a
> negative impact on the former, aggravating existing bugs, or triggering
> more races, even in the hardware.  So I think it's better to be more
> cautious and keep DMA disabled for the console.

Thanks for the extensive and comprehensible replies.
No more questions from my end.
Looking forward to picking the patches from vanilla/stable trees.

-- 
Best Regards,
Eugeniu.



[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux