On Sun, Apr 12, 2015 at 11:26:43AM +0200, Peter Senna Tschudin wrote:
> Sparse compalins about casting void * to u64 on i386.
> Change the cast to resource_size_t.
>
> Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx>
> ---
>
> Tested by compilation only. Tested 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);
write64 is a misleading name because it only writes 32 bits on 32 bit
systems.
Are you sure it's a resource_size_t? If that's really true then this
code needs a lot more work. The ifdef in gf_write64() should be
CONFIG_PHYS_ADDR_T_64BIT and ops->datbuf needs to updated. It would be
a lot of changes...
I *think* but I'm not positive that gf_write64 should just take a void
pointer like this:
diff --git a/drivers/staging/goldfish/goldfish_nand.c b/drivers/staging/goldfish/goldfish_nand.c
index 213877a..92d6479 100644
--- a/drivers/staging/goldfish/goldfish_nand.c
+++ b/drivers/staging/goldfish/goldfish_nand.c
@@ -87,7 +87,7 @@ 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(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..4cdb913 100644
--- a/include/linux/goldfish.h
+++ b/include/linux/goldfish.h
@@ -3,12 +3,12 @@
/* Helpers for Goldfish virtual platform */
-static inline void gf_write64(unsigned long data,
+static inline void gf_write64(void *data,
void __iomem *portl, void __iomem *porth)
{
- writel((u32)data, portl);
+ writel((u32)(unsigned long)data, portl);
#ifdef CONFIG_64BIT
- writel(data>>32, porth);
+ writel((unsigned long)data >> 32, porth);
#endif
}
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