[PATCH 4.14 100/189] hexagon: add memset_io() helper

From: Greg Kroah-Hartman
Date: Mon Jun 18 2018 - 04:58:58 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@xxxxxxxx>

[ Upstream commit a57ab96ef9dde231d4d46edba4d5f73720edc16a ]

We already have memcpy_toio(), but not memset_io(), so let's
add the obvious version to allow building an allmodconfig kernel
without errors like

drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_move_memcpy':
drivers/gpu/drm/ttm/ttm_bo_util.c:390:3: error: implicit declaration of function 'memset_io' [-Werror=implicit-function-declaration]

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Richard Kuo <rkuo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/hexagon/include/asm/io.h | 6 ++++++
1 file changed, 6 insertions(+)

--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -216,6 +216,12 @@ static inline void memcpy_toio(volatile
memcpy((void *) dst, src, count);
}

+static inline void memset_io(volatile void __iomem *addr, int value,
+ size_t size)
+{
+ memset((void __force *)addr, value, size);
+}
+
#define PCI_IO_ADDR (volatile void __iomem *)

/*