ARM: 8031/1: fixmap: remove FIX_KMAP_BEGIN and FIX_KMAP_END

It seems that these two macros are not used by non architecture
specific code. And on ARM FIX_KMAP_BEGIN equals zero.

This patch removes these two macros. Instead, using FIX_KMAP_NR_PTES to
tell the pte number belonged to fixmap mapping region. The code will
become clearer when I introduce a bugfix on fixmap mapping region.

Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/arm/include/asm/fixmap.h b/arch/arm/include/asm/fixmap.h
index bbae919bceb4..be55ebc08ed4 100644
--- a/arch/arm/include/asm/fixmap.h
+++ b/arch/arm/include/asm/fixmap.h
@@ -17,8 +17,7 @@
 #define FIXADDR_TOP             0xfffe0000UL
 #define FIXADDR_SIZE            (FIXADDR_TOP - FIXADDR_START)
 
-#define FIX_KMAP_BEGIN          0
-#define FIX_KMAP_END            (FIXADDR_SIZE >> PAGE_SHIFT)
+#define FIX_KMAP_NR_PTES        (FIXADDR_SIZE >> PAGE_SHIFT)
 
 #define __fix_to_virt(x)        (FIXADDR_START + ((x) << PAGE_SHIFT))
 #define __virt_to_fix(x)        (((x) - FIXADDR_START) >> PAGE_SHIFT)
@@ -27,7 +26,7 @@ extern void __this_fixmap_does_not_exist(void);
 
 static inline unsigned long fix_to_virt(const unsigned int idx)
 {
-        if (idx >= FIX_KMAP_END)
+        if (idx >= FIX_KMAP_NR_PTES)
                 __this_fixmap_does_not_exist();
         return __fix_to_virt(idx);
 }