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

[Hao Ge <hao.ge@linux.dev>]

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@kernel.org>

Acked-by: Hao Ge <hao.ge@linux.dev>

> ---
> 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