From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 29 Oct 2005 12:15:10 +0000 (+0100)
Subject: [ARM] Ensure machine information structures aren't optimised away
X-Git-Tag: firefly_0821_release~40855^2^2~14
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fb31690fbac6f4055c1765522752e4746759f5de;p=firefly-linux-kernel-4.4.55.git

[ARM] Ensure machine information structures aren't optimised away

Since the machine information structures are now static, the
compiler might optimise them away.  Mark them with
__attribute_used__ to prevent this occuring.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/include/asm-arm/mach/arch.h b/include/asm-arm/mach/arch.h
index 7273c6fd95b5..eb262e078c46 100644
--- a/include/asm-arm/mach/arch.h
+++ b/include/asm-arm/mach/arch.h
@@ -50,6 +50,7 @@ struct machine_desc {
  */
 #define MACHINE_START(_type,_name)			\
 static const struct machine_desc __mach_desc_##_type	\
+ __attribute_used__					\
  __attribute__((__section__(".arch.info.init"))) = {	\
 	.nr		= MACH_TYPE_##_type,		\
 	.name		= _name,