Re: [PATCH] kselftest: alloc_tag: use the ll64 types on powerpc64

[Suren Baghdasaryan]

On Tue, Nov 3, 2026 at 5:09 PM Hao Ge <hao.ge@xxxxxxxxx> wrote:
>
>
>
> On 2026/11/3 23:54, Sasha Levin wrote:
> > On powerpc64 __u64 is an unsigned long unless __SANE_USERSPACE_TYPES__
> > is defined, so printing and scanning the __u64 fields with %llu warns:
> >
> >   allocinfo_ioctl_test.c:93:73: warning: format '%llu' expects argument of type 'long long unsigned int', but argument 2 has type '__u64' {aka 'long unsigned int'} [-Wformat=]
> >
> > Define __SANE_USERSPACE_TYPES__, as other selftests do.
> >
> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
>
> Acked-by: Hao Ge <hao.ge@xxxxxxxxx>

Acked-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>

>
> > ---
> > KernelCI's powerpc kselftest builds show this. The define makes the same
> > change on alpha and mips64 and none on the other architectures; the
> > x86_64 and 32-bit builds don't change.
> >
> >  tools/testing/selftests/alloc_tag/allocinfo_ioctl_test.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/tools/testing/selftests/alloc_tag/allocinfo_ioctl_test.c b/tools/testing/selftests/alloc_tag/allocinfo_ioctl_test.c
> > index 74fd64b2370cc..18c761fecfde0 100644
> > --- a/tools/testing/selftests/alloc_tag/allocinfo_ioctl_test.c
> > +++ b/tools/testing/selftests/alloc_tag/allocinfo_ioctl_test.c
> > @@ -1,4 +1,5 @@
> >  // SPDX-License-Identifier: GPL-2.0-only
> > +#define __SANE_USERSPACE_TYPES__
> >
> >  /* kselftest for allocinfo ioctl
> >   * allocinfo ioctl retrieves allocinfo data through ioctl