[PATCH 3/4] printk: Don't allow direct inclusion

[Joe Perches]

printk.h is a subfile of kernel.h, do not allow
it to be included directly.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
 include/linux/printk.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index ee048e7..3736545 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -1,3 +1,7 @@
+#ifndef _LINUX_KERNEL_H
+#error "Do not include <linux/printk.h>, use <linux/kernel.h> instead"
+#endif
+
 #ifndef __KERNEL_PRINTK__
 #define __KERNEL_PRINTK__
 
-- 
1.7.4.rc3

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