Thomas Gleixner writes:
> On Fri, 12 Jul 2019, Thiago Jung Bauermann wrote:
>> diff --git a/include/linux/mem_encrypt.h b/include/linux/mem_encrypt.h
>> index b310a9c18113..f2e399fb626b 100644
>> --- a/include/linux/mem_encrypt.h
>> +++ b/include/linux/mem_encrypt.h
>> @@ -21,23 +21,11 @@
>>
Honestly I think this code should go away without any replacement.
There is no reason why we should have a special debug printk just
for one specific reason why there is a requirement for a large DMA
mask.
Secure Memory Encryption is an x86-specific feature, so it shouldn't appear
in generic kernel code.
Introduce ARCH_HAS_DMA_CHECK_MASK so that x86 can define its own
dma_check_mask() for the SME check.
In SWIOTLB code, there's no need to mention which memory encryption
feature is active. Also,
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