diff --git a/arch/arm/src/armv7-a/arm_addrenv.c b/arch/arm/src/armv7-a/arm_addrenv.c
index 45cf60882ea..de5df1473ab 100644
--- a/arch/arm/src/armv7-a/arm_addrenv.c
+++ b/arch/arm/src/armv7-a/arm_addrenv.c
@@ -150,13 +150,13 @@ static void set_l2_entry(FAR uint32_t *l2table, uintptr_t paddr,
  * Name: up_addrenv_create_region
  *
  * Description:
- *   Destroy one memory region.
+ *   Create one memory region.
  *
  ****************************************************************************/
 
-int up_addrenv_create_region(FAR uintptr_t **list, unsigned int listlen,
-                             uintptr_t vaddr, size_t regionsize,
-                             uint32_t mmuflags)
+static int up_addrenv_create_region(FAR uintptr_t **list,
+                                    unsigned int listlen, uintptr_t vaddr,
+                                    size_t regionsize, uint32_t mmuflags)
 {
   irqstate_t flags;
   uintptr_t paddr;
@@ -258,8 +258,8 @@ int up_addrenv_create_region(FAR uintptr_t **list, unsigned int listlen,
  *
  ****************************************************************************/
 
-void up_addrenv_destroy_region(FAR uintptr_t **list, unsigned int listlen,
-                               uintptr_t vaddr)
+static void up_addrenv_destroy_region(FAR uintptr_t **list,
+                                      unsigned int listlen, uintptr_t vaddr)
 {
   irqstate_t flags;
   uintptr_t paddr;
diff --git a/include/nuttx/arch.h b/include/nuttx/arch.h
index a3ca577c82d..bb876ed850a 100644
--- a/include/nuttx/arch.h
+++ b/include/nuttx/arch.h
@@ -676,10 +676,10 @@ void up_allocate_pgheap(FAR void **heap_start, size_t *heap_size);
  *
  * Description:
  *   If there is a page allocator in the configuration and if and MMU is
- *   available to map physcal addresses to virtual address, then function
+ *   available to map physical addresses to virtual address, then function
  *   must be provided by the platform-specific code.  This is part of the
  *   implementation of sbrk().  This function will allocate the requested
- *   number of pages using the page allocator and map them into consecuive
+ *   number of pages using the page allocator and map them into consecutive
  *   virtual addresses beginning with 'brkaddr'
  *
  *   NOTE:  This function does not use the up_ naming standard because it