From eab6a08c082b82dff884eb49a2229b0474d0b7e5 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 21 Feb 2013 17:37:06 +0530
Subject: ARC: make a copy of flat DT
The flat DT (currently embedded in vmlinux) is in .init section.
The unflattened/binary tree doesn't copy strings through and references
them from orig flat DT - which could cause catestrohpy if of_* APIs are
called post init, say from a driver which is a loadable module.
Reported-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/arc/include/asm/mach_desc.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'arch/arc/include/asm')
diff --git a/arch/arc/include/asm/mach_desc.h b/arch/arc/include/asm/mach_desc.h
index eaebaf835f85..9998dc846ebb 100644
--- a/arch/arc/include/asm/mach_desc.h
+++ b/arch/arc/include/asm/mach_desc.h
@@ -82,4 +82,6 @@ __attribute__((__section__(".arch.info.init"))) = { \
};
extern struct machine_desc *setup_machine_fdt(void *dt);
+extern void __init copy_devtree(void);
+
#endif
--
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