Change the type of physical address from unsigned long to phys_addr_t,
make valid_phys_addr_range more readable.
Signed-off-by: Min-Hua Chen <orca.c...@gmail.com>
---
arch/arm64/include/asm/io.h | 2 +-
arch/arm64/mm/mmap.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index e0ecdcf..f771e8b 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -243,7 +243,7 @@ extern void __iomem *ioremap_cache(phys_addr_t
phys_addr, size_t size);
* (PHYS_OFFSET and PHYS_MASK taken into account).
*/
#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
-extern int valid_phys_addr_range(unsigned long addr, size_t size);
+extern int valid_phys_addr_range(phys_addr_t addr, size_t size);
extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
extern int devmem_is_allowed(unsigned long pfn);
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 8ed6cb1..1d73662 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -102,7 +102,7 @@ EXPORT_SYMBOL_GPL(arch_pick_mmap_layout);
* You really shouldn't be using read() or write() on /dev/mem. This might go
* away in the future.
*/
-int valid_phys_addr_range(unsigned long addr, size_t size)
+int valid_phys_addr_range(phys_addr_t addr, size_t size)
{
if (addr < PHYS_OFFSET)
return 0;
--
1.7.10.4
On Thu, Oct 2, 2014 at 5:27 PM, Will Deacon <will.dea...@arm.com> wrote:
> On Wed, Oct 01, 2014 at 03:26:55PM +0100, Min-Hua Chen wrote:
>> I found that valid_phys_addr_range does not use
>> phys_addr_t to describe physical address.
>> Is it better to change the type from unsigned long to phys_addr_t?
>
> Yes, that looks like a sensible change. Both types are 64-bit on arm64, so
> it shouldn't affect functionality. Can you resend as a proper patch (with
> commit message) please?
>
> Will
>
>> Signed-off-by: Min-Hua Chen<orca.c...@gmail.com>
>> diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
>> index e0ecdcf..f771e8b 100644
>> --- a/arch/arm64/include/asm/io.h
>> +++ b/arch/arm64/include/asm/io.h
>> @@ -243,7 +243,7 @@ extern void __iomem *ioremap_cache(phys_addr_t
>> phys_addr, size_t size);
>> * (PHYS_OFFSET and PHYS_MASK taken into account).
>> */
>> #define ARCH_HAS_VALID_PHYS_ADDR_RANGE
>> -extern int valid_phys_addr_range(unsigned long addr, size_t size);
>> +extern int valid_phys_addr_range(phys_addr_t addr, size_t size);
>> extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
>>
>> extern int devmem_is_allowed(unsigned long pfn);
>> diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
>> index 8ed6cb1..1d73662 100644
>> --- a/arch/arm64/mm/mmap.c
>> +++ b/arch/arm64/mm/mmap.c
>> @@ -102,7 +102,7 @@ EXPORT_SYMBOL_GPL(arch_pick_mmap_layout);
>> * You really shouldn't be using read() or write() on /dev/mem. This might
>> go
>> * away in the future.
>> */
>> -int valid_phys_addr_range(unsigned long addr, size_t size)
>> +int valid_phys_addr_range(phys_addr_t addr, size_t size)
>> {
>> if (addr < PHYS_OFFSET)
>> return 0;
>> --
>> 1.7.10.4
>>
--
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