Messages in this thread Patch in this message | | | From | Vaibhav Jain <> | Subject | [PATCH] powerpc/xmon: Dont register sysrq key when kernel param xmon=off | Date | Mon, 12 Feb 2018 14:29:56 +0530 |
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Presently sysrq key for xmon('x') is registered during kernel init irrespective of the value of kernel param 'xmon'. Thus xmon is enabled even if 'xmon=off' is passed on the kernel command line.
This minor patch updates setup_xmon_sysrq() to register 'sysrq_xmon_op' only when variable 'xmon_on' is set.
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> --- arch/powerpc/xmon/xmon.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 82e1a3ee6e0f..3b995474b102 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -3642,8 +3642,7 @@ static struct sysrq_key_op sysrq_xmon_op = { static int __init setup_xmon_sysrq(void) { - register_sysrq_key('x', &sysrq_xmon_op); - return 0; + return xmon_on ? register_sysrq_key('x', &sysrq_xmon_op) : 0; } device_initcall(setup_xmon_sysrq); #endif /* CONFIG_MAGIC_SYSRQ */ -- 2.14.3
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