Re: [PATCH 7/8] membarrier: Remove arm (32) support for SYNC_CORE

On Wed, Jun 16, 2021 at 6:27 PM Russell King (Oracle)
[off-list ref] wrote:

Arnd tells me that the current remaining ARM11MPCore users are:
- CNS3xxx (where there is some martinal interest in the Gateworks
  Laguna platform)
- Similar for OXNAS
- There used to be the Realview MPCore tile - I haven't turned that on
  in ages, and it may be that the 3V cell that backs up the encryption
  keys is dead so it may not even boot.

I have this machine with 4 x ARM11 MPCore, it works like a charm.
I use it to test exactly this kind of stuff, I know if a kernel works
on ARM11MPCore it works on anything because of how fragile
it is.

So it seems to come down to a question about CNS3xxx and OXNAS. If
these aren't being used, maybe we can drop ARM11MPCore support and
the associated platforms?

Linus, Krzysztof, Neil, any input?

I don't especially need to keep the ARM11MPCore machine alive,
it is just a testchip after all. The Oxnas is another story, that has wide
deployment and was contributed recently (2016) and has excellent
support in OpenWrt so I wouldn't really want
to axe that.

Yours,
Linus Walleij

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