[POWERPC] Prevent direct inclusion of <asm/rwsem.h>.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/ppc/syslib/ocp.c

@@ -44,11 +44,11 @@
 #include <linux/pm.h>
 #include <linux/bootmem.h>
 #include <linux/device.h>
+#include <linux/rwsem.h>
 
 #include <asm/io.h>
 #include <asm/ocp.h>
 #include <asm/errno.h>
-#include <asm/rwsem.h>
 #include <asm/semaphore.h>
 
 //#define DBG(x)	printk x

include/asm-powerpc/rwsem.h

 #ifndef _ASM_POWERPC_RWSEM_H
 #define _ASM_POWERPC_RWSEM_H
 
+#ifndef _LINUX_RWSEM_H
+#error "Please don't include <asm/rwsem.h> directly, use <linux/rwsem.h> instead."
+#endif
+
 #ifdef __KERNEL__
 
 /*

include/asm-ppc/ocp.h

@@ -27,10 +27,10 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/device.h>
+#include <linux/rwsem.h>
 
 #include <asm/mmu.h>
 #include <asm/ocp_ids.h>
-#include <asm/rwsem.h>
 #include <asm/semaphore.h>
 
 #ifdef CONFIG_PPC_OCP