linux-next: build failure after merge of the tip tree

Stephen Rothwell
2014-05-23T07:14:25Z

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Hi all,

After merging the tip tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

In file included from arch/arm/include/asm/outercache.h:24:0,
from arch/arm/include/asm/barrier.h:5,
from arch/arm/include/asm/bitops.h:28,
from include/linux/bitops.h:33,
from include/linux/kernel.h:10,
from include/asm-generic/bug.h:13,
from arch/arm/include/asm/bug.h:61,
from arch/arm/include/asm/div64.h:63,
from include/linux/math64.h:5,
from include/linux/jiffies.h:4,
from init/calibrate.c:7:
include/linux/bug.h:91:47: warning: 'struct bug_entry' declared inside parameter list [enabled by default]
include/linux/bug.h:91:47: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
include/linux/bug.h: In function 'is_warning_bug':
include/linux/bug.h:93:12: error: dereferencing pointer to incomplete type

... and many, many more ...

Probably caused by commit 030d0178bdbd ("arch,arm: Convert
smp_mb__*()") which added an include of asm/barrier.h to
arch/arm/include/asm/bitops.h. This has interacted with commit
59a3bc6d3343 ("ARM: outer cache: add WARN_ON() to outer_disable()")
from the arm tree, which adds an include of linux/bug.h to
arch/arm/include/asm/outercache.h.

I added the below merge fix patch. Russell, this should be applied to
your tree directly.

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 23 May 2014 17:10:12 +1000
Subject: [PATCH] ARM: outer cache: no need for bug.h in outercache.h

This fixes a cricular include dependency when combined with commits from
the tip tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
arch/arm/include/asm/outercache.h | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
index eaa8a28c6871..891a56b35bcf 100644
--- a/arch/arm/include/asm/outercache.h
+++ b/arch/arm/include/asm/outercache.h
@@ -21,7 +21,6 @@
#ifndef __ASM_OUTERCACHE_H
#define __ASM_OUTERCACHE_H

-#include <linux/bug.h>
#include <linux/types.h>

struct outer_cache_fns {
--
2.0.0.rc4

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au

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