[PATCH] x86_64: change early_ioremap to static

[Yinghai Lu]

[PATCH] x86_64: change early_ioremap to static

only dmi_scan_machine==>dmi_present==>dmi_table==>dmi_ioremap uses
early_ioremap outside of mm/init.c
dmi_scan_machine is called after init_memory_mappings, and could use
ioremap instead.

Signed-off-by: Yinghai Lu <yinghai.lu@xxxxxxx>

diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 1336da8..8e3d14c 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -174,37 +174,7 @@ __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
 
 unsigned long __meminitdata table_start, table_end;
 
-static __meminit void *alloc_low_page(unsigned long *phys)
-{ 
-	unsigned long pfn = table_end++;
-	void *adr;
-
-	if (after_bootmem) {
-		adr = (void *)get_zeroed_page(GFP_ATOMIC);
-		*phys = __pa(adr);
-		return adr;
-	}
-
-	if (pfn >= end_pfn) 
-		panic("alloc_low_page: ran out of memory"); 
-
-	adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE);
-	memset(adr, 0, PAGE_SIZE);
-	*phys  = pfn * PAGE_SIZE;
-	return adr;
-}
-
-static __meminit void unmap_low_page(void *adr)
-{ 
-
-	if (after_bootmem)
-		return;
-
-	early_iounmap(adr, PAGE_SIZE);
-} 
-
-/* Must run before zap_low_mappings */
-__meminit void *early_ioremap(unsigned long addr, unsigned long size)
+static __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 {
 	unsigned long vaddr;
 	pmd_t *pmd, *last_pmd;
@@ -233,7 +203,7 @@ __meminit void *early_ioremap(unsigned long addr, unsigned long size)
 }
 
 /* To avoid virtual aliases later */
-__meminit void early_iounmap(void *addr, unsigned long size)
+static __meminit void early_iounmap(void *addr, unsigned long size)
 {
 	unsigned long vaddr;
 	pmd_t *pmd;
@@ -247,6 +217,35 @@ __meminit void early_iounmap(void *addr, unsigned long size)
 	__flush_tlb();
 }
 
+static __meminit void *alloc_low_page(unsigned long *phys)
+{
+	unsigned long pfn = table_end++;
+	void *adr;
+
+	if (after_bootmem) {
+		adr = (void *)get_zeroed_page(GFP_ATOMIC);
+		*phys = __pa(adr);
+		return adr;
+	}
+
+	if (pfn >= end_pfn)
+		panic("alloc_low_page: ran out of memory");
+
+	adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE);
+	memset(adr, 0, PAGE_SIZE);
+	*phys  = pfn * PAGE_SIZE;
+	return adr;
+}
+
+static __meminit void unmap_low_page(void *adr)
+{
+
+	if (after_bootmem)
+		return;
+
+	early_iounmap(adr, PAGE_SIZE);
+}
+
 static void __meminit
 phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
 {
diff --git a/include/asm-x86_64/dmi.h b/include/asm-x86_64/dmi.h
index 93b2b15..fc7b576 100644
--- a/include/asm-x86_64/dmi.h
+++ b/include/asm-x86_64/dmi.h
@@ -3,15 +3,12 @@
 
 #include <asm/io.h>
 
-extern void *dmi_ioremap(unsigned long addr, unsigned long size);
-extern void dmi_iounmap(void *addr, unsigned long size);
-
 #define DMI_MAX_DATA 2048
 
 extern int dmi_alloc_index;
 extern char dmi_alloc_data[DMI_MAX_DATA];
 
-/* This is so early that there is no good way to allocate dynamic memory. 
+/* This is so early that there is no good way to allocate dynamic memory.
    Allocate data in an BSS array. */
 static inline void *dmi_alloc(unsigned len)
 {
@@ -21,7 +18,7 @@ static inline void *dmi_alloc(unsigned len)
 	return dmi_alloc_data + idx;
 }
 
-#define dmi_ioremap early_ioremap
-#define dmi_iounmap early_iounmap
+#define dmi_ioremap ioremap
+#define dmi_iounmap(x,l) iounmap(x)
 
 #endif
diff --git a/include/asm-x86_64/io.h b/include/asm-x86_64/io.h
index de2cd9a..0898bdc 100644
--- a/include/asm-x86_64/io.h
+++ b/include/asm-x86_64/io.h
@@ -134,9 +134,6 @@ static inline void __iomem * ioremap (unsigned long offset, unsigned long size)
 	return __ioremap(offset, size, 0);
 }
 
-extern void *early_ioremap(unsigned long addr, unsigned long size);
-extern void early_iounmap(void *addr, unsigned long size);
-
 /*
  * This one maps high address device memory and turns off caching for that area.
  * it's useful if some control registers are in such an area and write combining
-
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