[ARM] 3060/1: allow constants found in asm/memory.h to be used in asm code

Patch from Nicolas Pitre

This patch allows for assorted type of cleanups by letting assembly code
use the same set of defines for constant values and avoid duplicated
definitions that might not always be in sync, or that might simply be
confusing due to the different names for the same thing.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 14 insertions, 4 deletions

diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index a8a933a775db..bee10fcf7e83 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -12,6 +12,16 @@
 #ifndef __ASM_ARM_MEMORY_H
 #define __ASM_ARM_MEMORY_H
 
+/*
+ * Allow for constants defined here to be used from assembly code
+ * by prepending the UL suffix only with actual C code compilation.
+ */
+#ifndef __ASSEMBLY__
+#define UL(x) (x##UL)
+#else
+#define UL(x) (x)
+#endif
+
 #include <linux/config.h>
 #include <linux/compiler.h>
 #include <asm/arch/memory.h>
@@ -21,20 +31,20 @@
  * TASK_SIZE - the maximum size of a user space task.
  * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
  */
-#define TASK_SIZE               (0xbf000000UL)
-#define TASK_UNMAPPED_BASE      (0x40000000UL)
+#define TASK_SIZE               UL(0xbf000000)
+#define TASK_UNMAPPED_BASE      UL(0x40000000)
 #endif
 
 /*
  * The maximum size of a 26-bit user space task.
  */
-#define TASK_SIZE_26            (0x04000000UL)
+#define TASK_SIZE_26            UL(0x04000000)
 
 /*
  * Page offset: 3GB
  */
 #ifndef PAGE_OFFSET
-#define PAGE_OFFSET             (0xc0000000UL)
+#define PAGE_OFFSET             UL(0xc0000000)
 #endif
 
 /*