linux-kernel - kernel/sched/core.c:9284:38: error: no member named 'scx_weight' in 'struct task

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Message-ID: <202509170230.MwZsJSWa-lkp@intel.com>
Date: Wed, 17 Sep 2025 02:12:41 +0800
From: kernel test robot <lkp@...el.com>
To: Tejun Heo <tj@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: kernel/sched/core.c:9284:38: error: no member named 'scx_weight' in
 'struct task_group'

Hi Tejun,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   46a51f4f5edade43ba66b3c151f0e25ec8b69cb6
commit: 6e6558a6bc418f1478c5dc8609d03805364e0cb9 sched_ext, sched/core: Factor out struct scx_task_group
date:   3 months ago
config: x86_64-buildonly-randconfig-004-20250917 (https://download.01.org/0day-ci/archive/20250917/202509170230.MwZsJSWa-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250917/202509170230.MwZsJSWa-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/202509170230.MwZsJSWa-lkp@intel.com/

All errors (new ones prefixed by >>):

>> kernel/sched/core.c:9284:38: error: no member named 'scx_weight' in 'struct task_group'
    9284 |         return sched_weight_from_cgroup(tg->scx_weight);
         |                                         ~~  ^
   1 error generated.


vim +9284 kernel/sched/core.c

2480c093130f64a kernel/sched/core.c Patrick Bellasi 2019-08-22  9277  
e179e80c5d4fef4 kernel/sched/core.c Tejun Heo       2024-09-04  9278  #ifdef CONFIG_GROUP_SCHED_WEIGHT
41082c1d1d2bf6c kernel/sched/core.c Tejun Heo       2024-09-04  9279  static unsigned long tg_weight(struct task_group *tg)
41082c1d1d2bf6c kernel/sched/core.c Tejun Heo       2024-09-04  9280  {
052f1dc7eb02300 kernel/sched.c      Peter Zijlstra  2008-02-13  9281  #ifdef CONFIG_FAIR_GROUP_SCHED
41082c1d1d2bf6c kernel/sched/core.c Tejun Heo       2024-09-04  9282  	return scale_load_down(tg->shares);
8195136669661fd kernel/sched/core.c Tejun Heo       2024-09-04  9283  #else
8195136669661fd kernel/sched/core.c Tejun Heo       2024-09-04 @9284  	return sched_weight_from_cgroup(tg->scx_weight);
8195136669661fd kernel/sched/core.c Tejun Heo       2024-09-04  9285  #endif
41082c1d1d2bf6c kernel/sched/core.c Tejun Heo       2024-09-04  9286  }
41082c1d1d2bf6c kernel/sched/core.c Tejun Heo       2024-09-04  9287  

:::::: The code at line 9284 was first introduced by commit
:::::: 8195136669661fdfe54e9a8923c33b31c92fc1da sched_ext: Add cgroup support

:::::: TO: Tejun Heo <tj@...nel.org>
:::::: CC: Tejun Heo <tj@...nel.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki