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Input: sysrq - ensure sysrq_enabled and __sysrq_enabled are consistent

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Currently sysrq_enabled and __sysrq_enabled are initialised separately
and inconsistently, leading to sysrq being actually enabled by reported
as not enabled in sysfs.  The first change to the sysfs configurable
synchronises these two:

    static int __read_mostly sysrq_enabled = 1;
    static int __sysrq_enabled;

Add a common define to carry the default for these preventing them becoming
out of sync again.  Default this to 1 to mirror previous behaviour.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Andy Whitcroft
2011-01-24 09:31:38 -08:00
committed by Dmitry Torokhov
parent cb1b145929
commit 8c6a98b22b
3 changed files with 6 additions and 2 deletions
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3
include/linux/sysrq.h
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@@ -17,6 +17,9 @@
#include <linux/errno.h>
#include <linux/types.h>
/* Enable/disable SYSRQ support by default (0==no, 1==yes). */
#define SYSRQ_DEFAULT_ENABLE 1
/* Possible values of bitmask for enabling sysrq functions */
/* 0x0001 is reserved for enable everything */
#define SYSRQ_ENABLE_LOG 0x0002