* Matthew Wilcox <willy@xxxxxxxxxxxxx> [210512 17:48]:
> On Wed, May 12, 2021 at 06:48:52PM +0000, Liam Howlett wrote:
> > Copy __must_be_array() define from include/linux/compiler.h for use in
> > the radix tree test suite userspace compiles.
>
> We needed this earlier, but see commit
> 7487de534dcbe143e6f41da751dd3ffcf93b00ee
>
> I bet if you revert this commit, it'll still build fine.
>
> Also, I bet patch 1/4 is the same -- I see a definition of
> fallthrough in tools/include/linux/compiler-gcc.h
You are correct. Please disregard patch 1 and 2.
Thanks,
Liam
>
> > Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
> > ---
> > tools/testing/radix-tree/linux/kernel.h | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h
> > index c400a27e544a..2c3771fff2c0 100644
> > --- a/tools/testing/radix-tree/linux/kernel.h
> > +++ b/tools/testing/radix-tree/linux/kernel.h
> > @@ -30,4 +30,6 @@
> > # define fallthrough do {} while (0) /* fallthrough */
> > #endif /* __has_attribute */
> >
> > +#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
> > +
> > #endif /* _KERNEL_H */
> > --
> > 2.30.2
