ARM: dma-mapping: move consistent_init into CONFIG_MMU section

No point wrapping the contents of this function with #ifdef CONFIG_MMU
when we can place it and the core_initcall() entirely within the
existing conditional block.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Ungerer <gerg@uclinux.org>

1 files changed, 38 insertions, 40 deletions

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 6b24e5ed85c2..19357f76ce89 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -144,6 +144,44 @@ static struct arm_vmregion_head consistent_head = {
 #error ARM Coherent DMA allocator does not (yet) support huge TLB
 #endif
 
+/*
+ * Initialise the consistent memory allocation.
+ */
+static int __init consistent_init(void)
+{
+        int ret = 0;
+        pgd_t *pgd;
+        pmd_t *pmd;
+        pte_t *pte;
+        int i = 0;
+        u32 base = CONSISTENT_BASE;
+
+        do {
+                pgd = pgd_offset(&init_mm, base);
+                pmd = pmd_alloc(&init_mm, pgd, base);
+                if (!pmd) {
+                        printk(KERN_ERR "%s: no pmd tables\n", __func__);
+                        ret = -ENOMEM;
+                        break;
+                }
+                WARN_ON(!pmd_none(*pmd));
+
+                pte = pte_alloc_kernel(pmd, base);
+                if (!pte) {
+                        printk(KERN_ERR "%s: no pte tables\n", __func__);
+                        ret = -ENOMEM;
+                        break;
+                }
+
+                consistent_pte[i++] = pte;
+                base += (1 << PGDIR_SHIFT);
+        } while (base < CONSISTENT_END);
+
+        return ret;
+}
+
+core_initcall(consistent_init);
+
 static void *
 __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
             pgprot_t prot)
@@ -400,46 +438,6 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr
 EXPORT_SYMBOL(dma_free_coherent);
 
 /*
- * Initialise the consistent memory allocation.
- */
-static int __init consistent_init(void)
-{
-        int ret = 0;
-#ifdef CONFIG_MMU
-        pgd_t *pgd;
-        pmd_t *pmd;
-        pte_t *pte;
-        int i = 0;
-        u32 base = CONSISTENT_BASE;
-
-        do {
-                pgd = pgd_offset(&init_mm, base);
-                pmd = pmd_alloc(&init_mm, pgd, base);
-                if (!pmd) {
-                        printk(KERN_ERR "%s: no pmd tables\n", __func__);
-                        ret = -ENOMEM;
-                        break;
-                }
-                WARN_ON(!pmd_none(*pmd));
-
-                pte = pte_alloc_kernel(pmd, base);
-                if (!pte) {
-                        printk(KERN_ERR "%s: no pte tables\n", __func__);
-                        ret = -ENOMEM;
-                        break;
-                }
-
-                consistent_pte[i++] = pte;
-                base += (1 << PGDIR_SHIFT);
-        } while (base < CONSISTENT_END);
-#endif  /* !CONFIG_MMU */
-
-        return ret;
-}
-
-core_initcall(consistent_init);
-
-/*
  * Make an area consistent for devices.
  * Note: Drivers should NOT use this function directly, as it will break
  * platforms with CONFIG_DMABOUNCE.