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| author | Johan Hovold <johan@kernel.org> | 2021-04-16 17:05:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-22 13:04:26 +0300 |
| commit | cea37afd28f1bb7ca09a0c27e75f89cf2df9147d (patch) | |
| tree | 839af875427d4d30a151c33020ca4362dd41c83e /drivers/tty/serial/omap-serial.c | |
| parent | e359b4411c2836cf87c8776682d1b594635570de (diff) | |
| download | linux-cea37afd28f1bb7ca09a0c27e75f89cf2df9147d.tar.xz | |
serial: stm32: defer sysrq processing
Use the uart_unlock_and_check_sysrq() helper to defer sysrq processing
until receive processing is done and the port lock has been released.
This allows cleaning up the console_write() implementation by not having
to work around the recursive sysrq case (by dropping locking completely)
and also makes the console code work with PREEMPT_RT by no longer
relying on local_irq_save().
Reviewed-by: Valentin Caron<valentin.caron@foss.st.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210416140557.25177-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/omap-serial.c')
0 files changed, 0 insertions, 0 deletions