Messages in this thread | | | Date | Thu, 23 Jun 2022 11:15:58 +0200 | Subject | Re: kernel/sched/fair.c:9246:53: error: use of undeclared identifier 'select_idle_mask' | From | Dietmar Eggemann <> |
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On 22/06/2022 06:13, kernel test robot wrote: > tree: https://github.com/intel-lab-lkp/linux/commits/Vincent-Donnefort/feec-energy-margin-removal/20220621-170631 > head: 2059fff7a5a2b6016ef5843c673845283a00a646 > commit: a4a1ec79913664ac49b72cda8c3756c4da7c16b4 sched/fair: Rename select_idle_mask to select_rq_mask > date: 19 hours ago > config: s390-randconfig-r044-20220622 (https://download.01.org/0day-ci/archive/20220622/202206221253.ZVyGQvPX-lkp@intel.com/config) > compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 8b8d126598ce7bd5243da7f94f69fa1104288bee) > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # install s390 cross compiling tool for clang build > # apt-get install binutils-s390x-linux-gnu > # https://github.com/intel-lab-lkp/linux/commit/a4a1ec79913664ac49b72cda8c3756c4da7c16b4 > git remote add linux-review https://github.com/intel-lab-lkp/linux > git fetch --no-tags linux-review Vincent-Donnefort/feec-energy-margin-removal/20220621-170631 > git checkout a4a1ec79913664ac49b72cda8c3756c4da7c16b4 > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash kernel/ >
[...]
>>> kernel/sched/fair.c:9246:53: error: use of undeclared identifier 'select_idle_mask' > struct cpumask *cpus = this_cpu_cpumask_var_ptr(select_idle_mask); > ^ >>> kernel/sched/fair.c:9246:53: error: use of undeclared identifier 'select_idle_mask' >>> kernel/sched/fair.c:9246:53: error: use of undeclared identifier 'select_idle_mask' >>> kernel/sched/fair.c:9246:21: error: initializing 'struct cpumask *' with an expression of incompatible type 'void' > struct cpumask *cpus = this_cpu_cpumask_var_ptr(select_idle_mask); > ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This is due to commit f5b2eeb499910 ("sched/fair: Consider CPU affinity when allowing NUMA imbalance in find_idlest_group()") which appeared on tip sched/core and linux-next in the meantime.
Fixed in https://lkml.kernel.org/r/250691c7-0e2b-05ab-bedf-b245c11d9400@arm.com .
Thanks!
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