linux-kernel - [PATCH 3.18 19/85] hexagon: add memset

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Message-Id: <20180701153123.117567651@linuxfoundation.org>
Date:   Sun,  1 Jul 2018 18:01:37 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Richard Kuo <rkuo@...eaurora.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 3.18 19/85] hexagon: add memset_io() helper

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

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

From: Arnd Bergmann <arnd@...db.de>

[ 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@...db.de>
Signed-off-by: Richard Kuo <rkuo@...eaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 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 *)
 
 /*