On Mon, Aug 05, 2024 at 03:37:20PM +0000, Wei Yang wrote:
> 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.
Let's keep it inline with the kernel definitions
> >> +{
> >> + 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
--
Sincerely yours,
Mike.
