diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8eb969e..fb8e814 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -165,12 +165,12 @@
  */
 static inline int is_linear_pfn_mapping(struct vm_area_struct *vma)
 {
-	return (vma->vm_flags & VM_PFN_AT_MMAP);
+	return !!(vma->vm_flags & VM_PFN_AT_MMAP);
 }
 
 static inline int is_pfn_mapping(struct vm_area_struct *vma)
 {
-	return (vma->vm_flags & VM_PFNMAP);
+	return !!(vma->vm_flags & VM_PFNMAP);
 }
 
 /*
@@ -1432,7 +1432,7 @@
 	unsigned long flag, unsigned long pgoff);
 extern unsigned long mmap_region(struct file *file, unsigned long addr,
 	unsigned long len, unsigned long flags,
-	unsigned int vm_flags, unsigned long pgoff);
+	vm_flags_t vm_flags, unsigned long pgoff);
 
 static inline unsigned long do_mmap(struct file *file, unsigned long addr,
 	unsigned long len, unsigned long prot,