On Mon, Aug 16, 2021 at 06:22:01PM +0200, Ulrich Hecht wrote:
> This fixes two issues that cause the sysrq sequence to be inadvertently
> aborted on SCIF serial consoles:
> 
> - a NUL character remains in the RX queue after a break has been detected,
>   which is then passed on to uart_handle_sysrq_char()
> - the break interrupt is handled twice on controllers with multiplexed ERI
>   and BRI interrupts
> 
> Signed-off-by: Ulrich Hecht <uli+renesas@fpond.eu>

For the record:

Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>