[PATCH 4.19 003/243] sparc64: implement ioremap_uc

[Greg Kroah-Hartman]

From: Tuowen Zhao <ztuowen@xxxxxxxxx>

commit 38e45d81d14e5f78cd67922596b1c37b4c22ec74 upstream.

On sparc64, the whole physical IO address space is accessible using
physically addressed loads and stores. *_uc does nothing like the
others.

Cc: <stable@xxxxxxxxxxxxxxx> # v4.19+
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Tuowen Zhao <ztuowen@xxxxxxxxx>
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/sparc/include/asm/io_64.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -409,6 +409,7 @@ static inline void __iomem *ioremap(unsi
 }
 
 #define ioremap_nocache(X,Y)		ioremap((X),(Y))
+#define ioremap_uc(X,Y)			ioremap((X),(Y))
 #define ioremap_wc(X,Y)			ioremap((X),(Y))
 #define ioremap_wt(X,Y)			ioremap((X),(Y))