On 07/07/2017 01:02 AM, Gregory CLEMENT wrote:
> Hi Florian,
>
> I forgot to CC you on this patch.
>
> Gregory
>
> On ven., juil. 07 2017, Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx> wrote:
>
>> As we already did for Armada XP switch from virt_to_phys() to
>> __pa_symbol().
>>
>> The reason for it was well explained by Mark Rutland so let's quote him:
>>
>> "virt_to_phys() is intended to operate on the linear/direct mapping of
>> RAM.
>>
>> __pa_symbol() is intended to operate on the kernel mapping, which may
>> not be in the linear/direct mapping on all architectures. e.g. arm64 and
>> x86_64 map the kernel image and RAM separately.
>>
>> On 32-bit ARM the kernel image mapping is tied to the linear/direct
>> mapping, so that works, but as it's semantically wrong (and broken for
>> generic code), the DEBUG_VIRTUAL checks complain."
>>
>> Fixes: db88977894ab ("arm: mvebu: support for SMP on 98DX3336 SoC")
>> Cc: <stable@xxxxxxxxxxxxxxx>
>> Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Thanks!
--
Florian