5.4-stable review patch. If anyone has any objections, please let me know.
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From: Dmitry Safonov dima@arista.com
[ Upstream commit dca3ac8d3bc9436eb5fd35b80cdcad762fbfa518 ]
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.
Cc: Kevin Hilman khilman@baylibre.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Signed-off-by: Dmitry Safonov dima@arista.com Link: https://lore.kernel.org/r/20191213000657.931618-22-dima@arista.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: 2a1d728f20ed ("tty: serial: meson: fix hard LOCKUP on crtscts mode") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/meson_uart.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c index 849ce8c1ef392..4c3616cc00833 100644 --- a/drivers/tty/serial/meson_uart.c +++ b/drivers/tty/serial/meson_uart.c @@ -5,10 +5,6 @@ * Copyright (C) 2014 Carlo Caione carlo@caione.org */
-#if defined(CONFIG_SERIAL_MESON_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - #include <linux/clk.h> #include <linux/console.h> #include <linux/delay.h> @@ -716,6 +712,7 @@ static int meson_uart_probe(struct platform_device *pdev) port->mapsize = resource_size(res_mem); port->irq = res_irq->start; port->flags = UPF_BOOT_AUTOCONF | UPF_LOW_LATENCY; + port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MESON_CONSOLE); port->dev = &pdev->dev; port->line = pdev->id; port->type = PORT_MESON;