linux-kernel - Re: [PATCH] selftests: cachestat: Fix build warnings on ppc64

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Message-ID: <2359b378-d664-4d63-bd64-f539ec8607ac@linuxfoundation.org>
Date: Wed, 29 May 2024 16:19:48 -0600
From: Shuah Khan <skhan@...uxfoundation.org>
To: Michael Ellerman <mpe@...erman.id.au>, linux-kselftest@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
 hannes@...xchg.org, nphamcs@...il.com, Shuah Khan
 <skhan@...uxfoundation.org>, shuah <shuah@...nel.org>
Subject: Re: [PATCH] selftests: cachestat: Fix build warnings on ppc64

On 5/20/24 21:01, Michael Ellerman wrote:
> Fix warnings like:
>    test_cachestat.c: In function ‘print_cachestat’:
>    test_cachestat.c:30:38: warning: format ‘%llu’ expects argument of
>    type ‘long long unsigned int’, but argument 2 has type ‘__u64’ {aka
>    ‘long unsigned int’} [-Wformat=]
> 
> By switching to unsigned long long for u64 for ppc64 builds.
> 
> Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
> ---
>   tools/testing/selftests/cachestat/test_cachestat.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/tools/testing/selftests/cachestat/test_cachestat.c b/tools/testing/selftests/cachestat/test_cachestat.c
> index b171fd53b004..632ab44737ec 100644
> --- a/tools/testing/selftests/cachestat/test_cachestat.c
> +++ b/tools/testing/selftests/cachestat/test_cachestat.c
> @@ -1,5 +1,6 @@
>   // SPDX-License-Identifier: GPL-2.0
>   #define _GNU_SOURCE
> +#define __SANE_USERSPACE_TYPES__ // Use ll64
>   
>   #include <stdio.h>
>   #include <stdbool.h>

Applied to linux-kselftest fixes for the next rc.

Michael, If you want to take this through, let me know, I can drop this.

thanks,
-- Shuah