diff options
| author | Dmitry Safonov <dima@arista.com> | 2019-12-13 00:06:35 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-18 15:04:59 +0100 |
| commit | 386ae3b753ad3be39a3b2dd33a0aaed799f01ad0 (patch) | |
| tree | 33456dcaba952f95b04db3c89578db96ccaf59c7 /drivers/tty | |
| parent | 8f122698a64b877d7cf6918210598c02d4ec1a63 (diff) | |
tty/serial: Migrate sa1100 to use has_sysrq
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@arista.com>
Link: https://lore.kernel.org/r/20191213000657.931618-37-dima@arista.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/sa1100.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c index 8e618129e65c..75c2a22895f9 100644 --- a/drivers/tty/serial/sa1100.c +++ b/drivers/tty/serial/sa1100.c @@ -7,10 +7,6 @@ * Copyright (C) 2000 Deep Blue Solutions Ltd. */ -#if defined(CONFIG_SERIAL_SA1100_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - #include <linux/module.h> #include <linux/ioport.h> #include <linux/init.h> @@ -214,9 +210,7 @@ sa1100_rx_chars(struct sa1100_port *sport) else if (status & UTSR1_TO_SM(UTSR1_FRE)) flg = TTY_FRAME; -#ifdef SUPPORT_SYSRQ sport->port.sysrq = 0; -#endif } if (uart_handle_sysrq_char(&sport->port, ch)) @@ -860,6 +854,7 @@ static int sa1100_serial_resume(struct platform_device *dev) static int sa1100_serial_add_one_port(struct sa1100_port *sport, struct platform_device *dev) { sport->port.dev = &dev->dev; + sport->port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_SA1100_CONSOLE); // mctrl_gpio_init() requires that the GPIO driver supports interrupts, // but we need to support GPIO drivers for hardware that has no such |