linux-kernel - [PATCH v3] Fix pointer cast for 32 bits arch

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Message-Id: <1428838701-2263-1-git-send-email-peter.senna@gmail.com>
Date:	Sun, 12 Apr 2015 13:38:21 +0200
From:	Peter Senna Tschudin <peter.senna@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Loic Pefferkorn <loic@...cp.eu>, Alan <alan@...ux.intel.com>,
	Jun Tian <jun.j.tian@...el.com>,
	Octavian Purdila <octavian.purdila@...el.com>,
	Garret Kelly <garret.kelly@...il.com>,
	<kristina.martsenko@...il.com>, Nick Kralevich <nnk@...gle.com>,
	Andreas <schwab@...ux-m68k.org>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Cc:	Peter Senna Tschudin <peter.senna@...il.com>
Subject: [PATCH v3] Fix pointer cast for 32 bits arch

Sparse complains about casting void * to u64 on i386.
Change the cast to resource_size_t.

Also update the type of the first argument of gf_write64()
from unsigned long to resource_size_t.

Signed-off-by: Peter Senna Tschudin <peter.senna@...il.com>
---
Changes from V2:
 - Fixed spelling of complains
 - Updated commit message

Changes from V1:
 - Updated commit message

Tested by compilation only. Compiled for x86 and x86_64.

 drivers/staging/goldfish/goldfish_nand.c | 3 ++-
 include/linux/goldfish.h                 | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/goldfish/goldfish_nand.c b/drivers/staging/goldfish/goldfish_nand.c
index d68f216..738fdc4 100644
--- a/drivers/staging/goldfish/goldfish_nand.c
+++ b/drivers/staging/goldfish/goldfish_nand.c
@@ -87,7 +87,8 @@ static u32 goldfish_nand_cmd(struct mtd_info *mtd, enum nand_cmd cmd,
 		writel((u32)(addr >> 32), base + NAND_ADDR_HIGH);
 		writel((u32)addr, base + NAND_ADDR_LOW);
 		writel(len, base + NAND_TRANSFER_SIZE);
-		gf_write64((u64)ptr, base + NAND_DATA, base + NAND_DATA_HIGH);
+		gf_write64((resource_size_t)ptr, base + NAND_DATA,
+			   base + NAND_DATA_HIGH);
 		writel(cmd, base + NAND_COMMAND);
 		rv = readl(base + NAND_RESULT);
 	}
diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h
index 569236e..494e943 100644
--- a/include/linux/goldfish.h
+++ b/include/linux/goldfish.h
@@ -3,7 +3,7 @@
 
 /* Helpers for Goldfish virtual platform */
 
-static inline void gf_write64(unsigned long data,
+static inline void gf_write64(resource_size_t data,
 		void __iomem *portl, void __iomem *porth)
 {
 	writel((u32)data, portl);
-- 
2.1.0

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