From 0624517d809b1cf53c977335c9bda4c216cbddee Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jirislaby@gmail.com>
Date: Thu, 18 Oct 2007 23:40:26 -0700
Subject: forbid asm/bitops.h direct inclusion

forbid asm/bitops.h direct inclusion

Because of compile errors that may occur after bit changes if asm/bitops.h is
included directly without e.g.  linux/kernel.h which includes linux/bitops.h,
forbid direct inclusion of asm/bitops.h.  Thanks to Adrian Bunk.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/asm-generic/bitops.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include/asm-generic/bitops.h')

diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h
index e022a0f59e6..15e6f253dda 100644
--- a/include/asm-generic/bitops.h
+++ b/include/asm-generic/bitops.h
@@ -19,6 +19,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
-- 
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