On Fri, Mar 16, 2018 at 01:45:32PM +0000, Gabriel Matni wrote:

From: Gabriel Matni <redacted>

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 <miquel.raynal@bootlin.com> 
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>  
Signed-off-by: Gabriel Matni <redacted> 

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