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serial: mux: Align SUPPORT_SYSRQ behaviour with other drivers.

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The mux driver is anomalous among all the serial drivers that can
define SUPPORT_SYSRQ because it can, with some configs, set
SUPPORT_SYSRQ when SERIAL_CORE_CONSOLE is not set.

Not only does this impose a pointless (but tiny) runtime overhead for
such configs but, more significantly, it adds needless complexity when
doing a code review to check for unexpected side effects of any
changes to the serial core.

This is (cross-)compile tested only because I do not have any PA-RISC
hardware.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Thompson 2014-03-28 11:41:38 +00:00 committed by Greg Kroah-Hartman
parent fcbee4d49f
commit 22766ed8a2
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/mux.c
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@ -29,7 +29,7 @@
#include <asm/irq.h>
#include <asm/parisc-device.h>
#ifdef CONFIG_MAGIC_SYSRQ
#if defined(CONFIG_SERIAL_MUX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
#include <linux/sysrq.h>
#define SUPPORT_SYSRQ
#endif