On Mon, Aug 05, 2024 at 01:03:14PM +0300, Mike Rapoport wrote:
>On Fri, Aug 02, 2024 at 01:09:19AM +0000, Wei Yang wrote:
>> Commit 94ff46de4a73 ("memblock: Move late alloc warning down to phys
>> alloc") introduce the usage of virt_to_phys(), which is not defined in
>> memblock tests.
>>
>> Define it in mm.h to fix the build error.
>>
>> Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
>>
>> ---
>> v3: use static inline as phys_to_virt
>> v2: move definition to mm.h
>> ---
>> tools/include/linux/mm.h | 6 ++++++
>> 1 file changed, 6 insertions(+)
>>
>> diff --git a/tools/include/linux/mm.h b/tools/include/linux/mm.h
>> index cad4f2927983..c9e915914add 100644
>> --- a/tools/include/linux/mm.h
>> +++ b/tools/include/linux/mm.h
>> @@ -25,6 +25,12 @@ static inline void *phys_to_virt(unsigned long address)
>> return __va(address);
>> }
>>
>> +#define virt_to_phys virt_to_phys
>> +static inline phys_addr_t virt_to_phys(volatile void *address)
>
>Why volatilte?
>
There are two definitions of virt_to_phys:
include/asm-generic/io.h
arch/x86/include/asm/io.h
both has volatile.
I just copy from it. But I don't 100% understand it.
>> +{
>> + return (unsigned long)address;
>
>This should be phys_addr_t, look at its definition in tools/include/linux/types.h
>
You are right. Will fix it.
>> +}
>> +
>> void reserve_bootmem_region(phys_addr_t start, phys_addr_t end, int nid);
>>
>> static inline void totalram_pages_inc(void)
>> --
>> 2.34.1
>>
>
>--
>Sincerely yours,
>Mike.
--
Wei Yang
Help you, Help me
