linux-kernel - Re: [linus:master] [selftests/futex] 0ecb4232fc: kernel-selftests.futex/functional.make.fail

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Message-ID: <20250715075735.tdXLHcEA@linutronix.de>
Date: Tue, 15 Jul 2025 09:57:35 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [linus:master] [selftests/futex]  0ecb4232fc:
 kernel-selftests.futex/functional.make.fail

On 2025-07-15 15:36:13 [+0800], kernel test robot wrote:
> 
> 
> Hello,
> 
> kernel test robot noticed "kernel-selftests.futex/functional.make.fail" on:
> 
> commit: 0ecb4232fc65e659ca7020f8bb2e0fc347acfb7d ("selftests/futex: Set the home_node in futex_numa_mpol")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> 
> [test failed on linus/master      bc9ff192a6c940d9a26e21a0a82f2667067aaf5f]
> [test failed on linux-next/master b551c4e2a98a177a06148cf16505643cd2108386]
> 
> in testcase: kernel-selftests
> version: kernel-selftests-x86_64-7ff71e6d9239-1_20250215
> with following parameters:
> 
> 	group: futex
…
> make[1]: Entering directory '/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-0ecb4232fc65e659ca7020f8bb2e0fc347acfb7d/tools/testing/selftests/futex/functional'
…
> futex_numa_mpol.c: In function ‘main’:
> futex_numa_mpol.c:213:31: warning: implicit declaration of function ‘numa_set_mempolicy_home_node’; did you mean ‘SYS_set_mempolicy_home_node’? [-Wimplicit-function-declaration]
>   213 |                         ret = numa_set_mempolicy_home_node(futex_ptr, mem_size, i, 0);
>       |                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |                               SYS_set_mempolicy_home_node

I assume libnuma-dev is around because there are not any other warnings.
That is unfortunate but it seems that numa_set_mempolicy_home_node() is
only around since v2.0.18.
Is and update doable? Otherwise I would have to disable the test.

Sebastian