1 files changed, 0 insertions, 21 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index 88b646ea6d30..331d2f778695 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -110,27 +110,6 @@ unsigned int kobjsize(const void *objp)
 	return page_size(page);
 }
 
-/**
- * follow_pfn - look up PFN at a user virtual address
- * @vma: memory mapping
- * @address: user virtual address
- * @pfn: location to store found PFN
- *
- * Only IO mappings and raw PFN mappings are allowed.
- *
- * Returns zero and the pfn at @pfn on success, -ve otherwise.
- */
-int follow_pfn(struct vm_area_struct *vma, unsigned long address,
-	unsigned long *pfn)
-{
-	if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))
-		return -EINVAL;
-
-	*pfn = address >> PAGE_SHIFT;
-	return 0;
-}
-EXPORT_SYMBOL(follow_pfn);
-
 void vfree(const void *addr)
 {
 	kfree(addr);