Subject: [PATCH] serial: mvebu-uart: fix tx lost characters

From: [email-masked] (gregkh at linuxfoundation.org)
Date: Tue, 20 Mar 2018 10:32:08 +0100

On Fri, Mar 16, 2018 at 01:45:32PM +0000, Gabriel Matni wrote:
> From: Gabriel Matni <[email-masked]>
> 
> Fixes missing characters on kernel console at low baud rates (i.e.9600).
> The driver should poll TX_RDY or TX_FIFO_EMP instead of TX_EMP to ensure
> that the transmitter holding register (THR) is ready to receive a new byte.
> 
> TX_EMP tells us when it is possible to send a break sequence via
> SND_BRK_SEQ. While this also indicates that both the THR and the TSR are
> empty, it does not guarantee that a new byte can be written just yet.
> 
> Fixes: 30530791a7a0 ("serial: mvebu-uart: initial support for Armada-3700
>       serial port")

Can all be on one line.

And should this go to the stable trees?

> Reviewed-by: Miquel Raynal <[email-masked]> 
> Acked-by: Gregory CLEMENT <[email-masked]>  
> Signed-off-by: Gabriel Matni <[email-masked]> 

Trailing whitespace?

> 
> ---
>  drivers/tty/serial/mvebu-uart.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

What version of this patch is this?  How do I know which to accept?

Please properly version your patch, and include the changes below the
--- line like the documentation says to do.

thanks,

greg k-h