diff --git a/include/asm-um/pgalloc.h b/include/asm-um/pgalloc.h
index 34ab268..1490487 100644
--- a/include/asm-um/pgalloc.h
+++ b/include/asm-um/pgalloc.h
@@ -42,7 +42,7 @@ static inline void pte_free(struct page *pte)
 
 #ifdef CONFIG_3_LEVEL_PGTABLES
 
-extern __inline__ void pmd_free(pmd_t *pmd)
+static inline void pmd_free(pmd_t *pmd)
 {
 	free_page((unsigned long)pmd);
 }
diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h
index ca0c2a9..aa82b88 100644
--- a/include/asm-um/pgtable-3level.h
+++ b/include/asm-um/pgtable-3level.h
@@ -69,7 +69,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
         return pmd;
 }
 
-extern inline void pud_clear (pud_t *pud)
+static inline void pud_clear (pud_t *pud)
 {
         set_pud(pud, __pud(0));
 }
diff --git a/include/asm-um/processor-x86_64.h b/include/asm-um/processor-x86_64.h
index 31c2d4d..d946bf2 100644
--- a/include/asm-um/processor-x86_64.h
+++ b/include/asm-um/processor-x86_64.h
@@ -18,7 +18,7 @@ struct arch_thread {
 };
 
 /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
-extern inline void rep_nop(void)
+static inline void rep_nop(void)
 {
 	__asm__ __volatile__("rep;nop": : :"memory");
 }
diff --git a/include/asm-um/smp.h b/include/asm-um/smp.h
index 84f8cf2..f27a963 100644
--- a/include/asm-um/smp.h
+++ b/include/asm-um/smp.h
@@ -18,7 +18,7 @@ extern int hard_smp_processor_id(void);
 extern int ncpus;
 
 
-extern inline void smp_cpus_done(unsigned int maxcpus)
+static inline void smp_cpus_done(unsigned int maxcpus)
 {
 }