[PATCH 0/4] serial: core: fix up sysrq regressions

From: Johan Hovold
Date: Tue Jun 02 2020 - 10:01:30 EST

This series fixes a few regressions introduced by the recent sysrq
rework that went into 5.6.

The port unlock fix is tagged for stable, and the fix for the
unnecessary per-character overhead probably could be as well although
it is a bit more intrusive.


Johan Hovold (4):
Revert "serial: core: Refactor uart_unlock_and_check_sysrq()"
serial: core: fix broken sysrq port unlock
serial: core: fix sysrq overhead regression
serial: core: drop redundant sysrq checks

drivers/tty/serial/serial_core.c | 96 +---------------------------
include/linux/serial_core.h | 105 +++++++++++++++++++++++++++++--
2 files changed, 103 insertions(+), 98 deletions(-)