On Wed, 2020-12-02 at 14:18 +0000, Mark Rutland wrote:

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On Mon, Nov 23, 2020 at 05:57:42PM +0000, Alex Belits wrote:

quoted

Some drivers don't call functions that call
task_isolation_kernel_enter() in interrupt handlers. Call it
directly.

I don't think putting this in drivers is the right approach. IIUC we
only need to track user<->kernel transitions, and we can do that
within
the architectural entry code before we ever reach irqchip code. I
suspect the current approacch is an artifact of that being difficult
in
the old structure of the arch code; recent rework should address
that,
and we can restruecture things further in future.

I agree completely. This patch only covers irqchip drivers with unusual
entry procedures.

-- 
Alex