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serial: core: Use uart_console() helper in SysRq code

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Use uart_console() helper in SysRq code instead of open coded variant.
This eliminates the conditional entirely for SERIAL_CORE_CONSOLE=n case.
While here, refactor the conditional to be more compact.

Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200310174337.74109-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2020-03-10 19:43:36 +02:00 committed by Greg Kroah-Hartman
parent b18896ff3a
commit e140ef3692
1 changed files with 5 additions and 7 deletions
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4
drivers/tty/serial/serial_core.c
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@ -3216,15 +3216,13 @@ int uart_handle_break(struct uart_port *port)
if (port->handle_break)
port->handle_break(port);
if (port->has_sysrq) {
if (port->cons && port->cons->index == port->line) {
if (port->has_sysrq && uart_console(port)) {
if (!port->sysrq) {
port->sysrq = jiffies + SYSRQ_TIMEOUT;
return 1;
}
port->sysrq = 0;
}
}
if (port->flags & UPF_SAK)
do_SAK(state->port.tty);