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Nerves System - LinkIt Smart

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nerves_system_linkit linux-4.4 openwrt_generic 890-8250_optional_sysrq.patch
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linux-4.4/openwrt_generic/890-8250_optional_sysrq.patch 

--- a/drivers/tty/serial/8250/8250_port.c

+++ b/drivers/tty/serial/8250/8250_port.c

@@ -15,7 +15,7 @@

  *  membase is an 'ioremapped' cookie.

  */

 

-#if defined(CONFIG_SERIAL_8250_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)

+#if defined(CONFIG_SERIAL_8250_SYSRQ) && defined(CONFIG_MAGIC_SYSRQ)

 #define SUPPORT_SYSRQ

 #endif

 

--- a/drivers/tty/serial/8250/Kconfig

+++ b/drivers/tty/serial/8250/Kconfig

@@ -91,6 +91,10 @@ config SERIAL_8250_CONSOLE

 

 	  If unsure, say N.

 

+config SERIAL_8250_SYSRQ

+	bool "Magic sysrq support on 8250/16550 devices"

+	depends on SERIAL_8250_CONSOLE

+

 config SERIAL_8250_GSC

 	tristate

 	depends on SERIAL_8250 && GSC