of: remove HAVE_ARCH_DEVTREE_FIXUPS

HAVE_ARCH_DEVTREE_FIXUPS appears to always be needed except for sparc,
but it is only used for /proc/device-teee and sparc does not enable
/proc/device-tree. So this option is redundant. Remove the option and
always enable it. This has the side effect of fixing /proc/device-tree
on arches such as arm64 which failed to define this option.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>

arch/arc/include/asm/prom.h

@@ -9,6 +9,4 @@
 #ifndef _ASM_ARC_PROM_H_
 #define _ASM_ARC_PROM_H_
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif

arch/arm/include/asm/prom.h

@@ -11,8 +11,6 @@
 #ifndef __ASMARM_PROM_H
 #define __ASMARM_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #ifdef CONFIG_OF
 
 extern const struct machine_desc *setup_machine_fdt(unsigned int dt_phys);

arch/metag/include/asm/prom.h

@@ -14,7 +14,6 @@
 #ifndef __ASM_METAG_PROM_H
 #define __ASM_METAG_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
 
 extern void copy_fdt(void);
 

arch/microblaze/include/asm/prom.h

@@ -16,8 +16,6 @@
 
 #include <linux/of.h>
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 /* Other Prototypes */
 enum early_consoles {
 	UARTLITE = 1,

arch/openrisc/include/asm/prom.h

@@ -17,6 +17,4 @@
 #ifndef _ASM_OPENRISC_PROM_H
 #define _ASM_OPENRISC_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif /* _ASM_OPENRISC_PROM_H */

arch/powerpc/include/asm/prom.h

@@ -20,8 +20,6 @@
 #include <asm/irq.h>
 #include <linux/atomic.h>
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 /*
  * OF address retreival & translation
  */

arch/x86/include/asm/prom.h

@@ -39,7 +39,5 @@ static inline void x86_dtb_init(void) { }
 
 extern char cmd_line[COMMAND_LINE_SIZE];
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif /* __ASSEMBLY__ */
 #endif

arch/xtensa/include/asm/prom.h

@@ -1,6 +1,4 @@
 #ifndef _XTENSA_ASM_PROM_H
 #define _XTENSA_ASM_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif /* _XTENSA_ASM_PROM_H */

fs/proc/proc_devtree.c

@@ -14,16 +14,13 @@
 #include <linux/of.h>
 #include <linux/export.h>
 #include <linux/slab.h>
-#include <asm/prom.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
 static inline void set_node_proc_entry(struct device_node *np,
 				       struct proc_dir_entry *de)
 {
-#ifdef HAVE_ARCH_DEVTREE_FIXUPS
 	np->pde = de;
-#endif
 }
 
 static struct proc_dir_entry *proc_device_tree;