linux-kernel - Re: [tip:locking/core 27/43] ld.lld: error: undefined symbol: _raw_write

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Message-ID: <CANpmjNNsYagL4eoZFFrcFzgXgVy6TXAJ2FNQP5JW6_vLL5rXUg@mail.gmail.com>
Date: Tue, 3 Feb 2026 23:59:00 +0100
From: Marco Elver <elver@...gle.com>
To: kernel test robot <lkp@...el.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	x86@...nel.org, Peter Zijlstra <peterz@...radead.org>
Subject: Re: [tip:locking/core 27/43] ld.lld: error: undefined symbol: _raw_write_trylock

On Tue, 3 Feb 2026 at 14:27, kernel test robot <lkp@...el.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core
> head:   451c3a0356099483218535aed17fcf94ab5764a3
> commit: e4588c25c9d122b5847b88e18b184404b6959160 [27/43] compiler-context-analysis: Remove __cond_lock() function-like helper
> config: s390-randconfig-r051-20260203 (https://download.01.org/0day-ci/archive/20260203/202602032101.dbxRfsWO-lkp@intel.com/config)
> compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260203/202602032101.dbxRfsWO-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202602032101.dbxRfsWO-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
> >> ld.lld: error: undefined symbol: _raw_write_trylock
>    >>> referenced by rwlock_api_smp.h:48 (include/linux/rwlock_api_smp.h:48)
>    >>>               lib/test_context-analysis.o:(test_write_trylock_extra) in archive vmlinux.a
>    >>> referenced by rwlock_api_smp.h:48 (include/linux/rwlock_api_smp.h:48)
>    >>>               lib/test_context-analysis.o:(test_write_trylock_extra) in archive vmlinux.a

I think this should fix it (and hopefully not break anything else):
https://lore.kernel.org/all/20260203225114.3493538-1-elver@google.com/