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SubjectRe: [RFC PATCH v2 1/3] Add KUnit Struct to Current Task
On Tue, Mar 24, 2020 at 9:40 AM Alan Maguire <alan.maguire@oracle.com> wrote:
>
>
> On Thu, 19 Mar 2020, Patricia Alfonso wrote:
>
> > In order to integrate debugging tools like KASAN into the KUnit
> > framework, add KUnit struct to the current task to keep track of the
> > current KUnit test.
> >
> > Signed-off-by: Patricia Alfonso <trishalfonso@google.com>
> > ---
> > include/linux/sched.h | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/include/linux/sched.h b/include/linux/sched.h
> > index 04278493bf15..1fbfa0634776 100644
> > --- a/include/linux/sched.h
> > +++ b/include/linux/sched.h
> > @@ -1180,6 +1180,10 @@ struct task_struct {
> > unsigned int kasan_depth;
> > #endif
> >
> > +#if IS_BUILTIN(CONFIG_KUNIT)
>
> This patch set looks great! You might have noticed I
> refreshed the kunit resources stuff to incorporate
> feedback from Brendan, but I don't think any API changes
> were made that should have consequences for your code
> (I'm building with your patches on top to make sure).
> I'd suggest promoting from RFC to v3 on the next round
> unless anyone objects.
>
> As Dmitry suggested, the above could likely be changed to be
> "#ifdef CONFIG_KUNIT" as kunit can be built as a
> module also. More on this in patch 2..
>
I suppose this could be changed so that this can be used in possible
future scenarios, but for now, since built-in things can't rely on
modules, the KASAN integration relies on KUnit being built-in.

> > + struct kunit *kunit_test;
> > +#endif /* IS_BUILTIN(CONFIG_KUNIT) */
> > +
> > #ifdef CONFIG_FUNCTION_GRAPH_TRACER
> > /* Index of current stored address in ret_stack: */
> > int curr_ret_stack;
> > --
> > 2.25.1.696.g5e7596f4ac-goog
> >
> >

--
Best,
Patricia

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