diff options
| author | Dmitry Safonov <dima@arista.com> | 2019-12-13 00:06:11 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-18 15:04:46 +0100 |
| commit | 078abd98d7f81f3a2ad2a0f6884ea0ab2f556cfe (patch) | |
| tree | f4c77b326bfd284882899325966442c36008da52 /drivers/tty | |
| parent | 933505e9b41759fb7cb8a1b648553d7c00a8bf1c (diff) | |
| download | linux-078abd98d7f81f3a2ad2a0f6884ea0ab2f556cfe.tar.bz2 | |
tty/serial: Migrate atmel_serial 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.
While at it, remove forward-declaration of atmel_console - it wasn't
needed even at the moment the driver was first time introduced:
commit 1e6c9c2878c9 ("[ARM] 3242/2: AT91RM9200 support for 2.6 (Serial)")
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Richard Genoud <richard.genoud@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Dmitry Safonov <dima@arista.com>
Link: https://lore.kernel.org/r/20191213000657.931618-13-dima@arista.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index a8dc8af83f39..4020fc8ceb49 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -51,10 +51,6 @@ #define ATMEL_RTS_HIGH_OFFSET 16 #define ATMEL_RTS_LOW_OFFSET 20 -#if defined(CONFIG_SERIAL_ATMEL_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - #include <linux/serial_core.h> #include "serial_mctrl_gpio.h" @@ -196,10 +192,6 @@ struct atmel_uart_port { static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART]; static DECLARE_BITMAP(atmel_ports_in_use, ATMEL_MAX_UART); -#ifdef SUPPORT_SYSRQ -static struct console atmel_console; -#endif - #if defined(CONFIG_OF) static const struct of_device_id atmel_serial_dt_ids[] = { { .compatible = "atmel,at91rm9200-usart-serial" }, @@ -2877,6 +2869,7 @@ static int atmel_serial_probe(struct platform_device *pdev) atmel_port = &atmel_ports[ret]; atmel_port->backup_imr = 0; atmel_port->uart.line = ret; + atmel_port->uart.has_sysrq = IS_ENABLED(CONFIG_SERIAL_ATMEL_CONSOLE); atmel_serial_probe_fifos(atmel_port, pdev); atomic_set(&atmel_port->tasklet_shutdown, 0); |