[PATCH 3/5] arm64/sme: Support disabling streaming mode via ptrace on SME only systems

[Mark Brown]

On Thu, Sep 18, 2025 at 12:48:35PM +0100, Will Deacon wrote:

> It would be good to have an Ack from the userspace side (GDB?) so that
> we know that the minimal ABI change you're proposing is sufficient.

Yes, we need confirmation from the userspace side before this is merged.
I've had some informal feedback from some of the Arm people that was
positive but they needed to do some more thorough validation, and we
need feedback from people outside Arm too.

> In the meantime, I'll pick up the first two selftests as they are
> independent of this part.

Thanks.
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