The SUPPORT_SYSRQ ifdeffery is not nice as: - May create misunderstanding about sizeof(struct uart_port) between different objects - Prevents moving functions from serial_core.h - Reduces readability (well, it's ifdeffery - it's hard to follow) In order to remove SUPPORT_SYSRQ, has_sysrq variable has been added. Initialise it in driver's probe and remove ifdeffery. Signed-off-by: Dmitry Safonov <dima@xxxxxxxxxx> --- drivers/tty/serial/mux.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c index 00ce31e8d19a..2a9953211a2a 100644 --- a/drivers/tty/serial/mux.c +++ b/drivers/tty/serial/mux.c @@ -25,11 +25,7 @@ #include <asm/irq.h> #include <asm/parisc-device.h> -#if defined(CONFIG_SERIAL_MUX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) #include <linux/sysrq.h> -#define SUPPORT_SYSRQ -#endif - #include <linux/serial_core.h> #define MUX_OFFSET 0x800 @@ -483,6 +479,7 @@ static int __init mux_probe(struct parisc_device *dev) port->ops = &mux_pops; port->flags = UPF_BOOT_AUTOCONF; port->line = port_cnt; + port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MUX_CONSOLE); /* The port->timeout needs to match what is present in * uart_wait_until_sent in serial_core.c. Otherwise -- 2.24.0
