From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 16 May 2017 18:42:44 +0000 (+0200)
Subject: extable: Adjust system_state checks
X-Git-Tag: v4.13-rc1~205^2~41
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0594729c24d846889408a07057b5cc9e8d931419;p=karo-tx-linux.git

extable: Adjust system_state checks

To enable smp_processor_id() and might_sleep() debug checks earlier, it's
required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.

Adjust the system_state check in core_kernel_text() to handle the extra
states, i.e. to cover init text up to the point where the system switches
to state RUNNING.

Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170516184735.949992741@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/kernel/extable.c b/kernel/extable.c
index 2676d7f8baf6..0fbdd8582f08 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -75,7 +75,7 @@ int core_kernel_text(unsigned long addr)
 	    addr < (unsigned long)_etext)
 		return 1;
 
-	if (system_state == SYSTEM_BOOTING &&
+	if (system_state < SYSTEM_RUNNING &&
 	    init_kernel_text(addr))
 		return 1;
 	return 0;