hexagon: remove __iounmap

No need to indirect iounmap for hexagon.
Signed-off-by: NChristoph Hellwig <hch@lst.de>

arch/hexagon/include/asm/io.h

@@ -27,7 +27,7 @@
 extern int remap_area_pages(unsigned long start, unsigned long phys_addr,
 				unsigned long end, unsigned long flags);
 
-extern void __iounmap(const volatile void __iomem *addr);
+extern void iounmap(const volatile void __iomem *addr);
 
 /* Defined in lib/io.c, needed for smc91x driver. */
 extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen);
@@ -175,11 +175,6 @@ void __iomem *ioremap(unsigned long phys_addr, unsigned long size);
 #define ioremap_nocache ioremap
 
 
-static inline void iounmap(volatile void __iomem *addr)
-{
-	__iounmap(addr);
-}
-
 #define __raw_writel writel
 
 static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,

arch/hexagon/kernel/hexagon_ksyms.c

@@ -14,7 +14,7 @@
 EXPORT_SYMBOL(__clear_user_hexagon);
 EXPORT_SYMBOL(raw_copy_from_user);
 EXPORT_SYMBOL(raw_copy_to_user);
-EXPORT_SYMBOL(__iounmap);
+EXPORT_SYMBOL(iounmap);
 EXPORT_SYMBOL(__strnlen_user);
 EXPORT_SYMBOL(__vmgetie);
 EXPORT_SYMBOL(__vmsetie);

arch/hexagon/mm/ioremap.c

@@ -38,7 +38,7 @@ void __iomem *ioremap(unsigned long phys_addr, unsigned long size)
 	return (void __iomem *) (offset + addr);
 }
 
-void __iounmap(const volatile void __iomem *addr)
+void iounmap(const volatile void __iomem *addr)
 {
 	vunmap((void *) ((unsigned long) addr & PAGE_MASK));
 }