--- zzzz-none-000/linux-3.10.107/arch/sparc/include/asm/highmem.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/sparc/include/asm/highmem.h	2021-02-04 17:41:59.000000000 +0000
@@ -31,7 +31,7 @@
 extern pgprot_t kmap_prot;
 extern pte_t *pkmap_page_table;
 
-extern void kmap_init(void) __init;
+void kmap_init(void) __init;
 
 /*
  * Right now we initialize only a single pte table. It can be extended
@@ -49,8 +49,8 @@
 
 #define PKMAP_END (PKMAP_ADDR(LAST_PKMAP))
 
-extern void *kmap_high(struct page *page);
-extern void kunmap_high(struct page *page);
+void *kmap_high(struct page *page);
+void kunmap_high(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
@@ -68,8 +68,8 @@
 	kunmap_high(page);
 }
 
-extern void *kmap_atomic(struct page *page);
-extern void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
 
 #define flush_cache_kmaps()	flush_cache_all()