Re: [PATCH AUTOSEL 4.19 09/13] selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT

[Sasha Levin]

On Thu, Feb 24, 2022 at 11:46:22PM +0100, Pavel Machek wrote:
> On Tue 2022-02-22 21:31:48, Sasha Levin wrote:
> > From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
> >
> > [ Upstream commit 6fec1ab67f8d60704cc7de64abcfd389ab131542 ]
> >
> > The PREEMPT_RT patchset does not use do_softirq() function thus trying
> > to filter for do_softirq fails for such kernel:
> >
> >   echo do_softirq
> >   ftracetest: 81: echo: echo: I/O error
> >
> > Choose some other visible function for the test.  The function does not
> > have to be actually executed during the test, because it is only testing
> > filter API interface.
>
> This needs -rt patch even on mainline, right?
>
> It is certainly not needed in -stable branches.

I'll drop it, thanks.

--
Thanks,
Sasha