Re: [RFC PATCH 02/10] acpi: install SSDT tables from initrd

[Octavian Purdila]

On Fri, Apr 1, 2016 at 1:11 PM, Octavian Purdila
<octavian.purdila@xxxxxxxxx> wrote:
> On Fri, Apr 1, 2016 at 8:05 AM, Zheng, Lv <lv.zheng@xxxxxxxxx> wrote:
>> Hi,
>>
>> IMO, there is already a similar function upstreamed:
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c85cc81
>> Could it work for your use case?
>
> Yes, it is basically the same.
>
> The only difference is on how we handle taint. I think we should use a
> new taint for overlays and that we don't need to disable lockdep.
>
> BTW, why is lockdep disabled when we override?

The other thing I forgot to mention is that I think we should allow
installing new tables even if CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not
selected. IMO the override and overlay functionality is different,
with the latter being more then a debug option.

I will prepare a patch for the next version of the series to decouple
installing new tables from CONFIG_ACPI_INITRD_TABLE_OVERRIDE.