[frederic-dynticks:isolation/split-v2 4/8] kernel/rcu/tree_plugin.h:1217:50: error: 'HK_FLAG_RCU' undeclared
From: kernel test robot
Date: Fri Feb 04 2022 - 14:00:46 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git isolation/split-v2
head: 31b398242699300304defda3f388cc15b314c1b0
commit: 6c70f095e7a266b13de678c358d3852b92c95799 [4/8] sched/isolation: Use single feature type while referring to housekeeping cpumask
config: arc-randconfig-r043-20220131 (https://download.01.org/0day-ci/archive/20220205/202202050256.iEjqVGhm-lkp@xxxxxxxxx/config)
compiler: arc-elf-gcc (GCC) 11.2.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git/commit/?id=6c70f095e7a266b13de678c358d3852b92c95799
git remote add frederic-dynticks https://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
git fetch --no-tags frederic-dynticks isolation/split-v2
git checkout 6c70f095e7a266b13de678c358d3852b92c95799
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
In file included from kernel/rcu/tree.c:4783:
kernel/rcu/tree_plugin.h: In function 'rcu_boost_kthread_setaffinity':
>> kernel/rcu/tree_plugin.h:1217:50: error: 'HK_FLAG_RCU' undeclared (first use in this function)
1217 | cpumask_and(cm, cm, housekeeping_cpumask(HK_FLAG_RCU));
| ^~~~~~~~~~~
kernel/rcu/tree_plugin.h:1217:50: note: each undeclared identifier is reported only once for each function it appears in
vim +/HK_FLAG_RCU +1217 kernel/rcu/tree_plugin.h
27f4d28057adf9 kernel/rcutree_plugin.h Paul E. McKenney 2011-02-07 1192
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1193 /*
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1194 * Set the per-rcu_node kthread's affinity to cover all CPUs that are
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1195 * served by the rcu_node in question. The CPU hotplug lock is still
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1196 * held, so the value of rnp->qsmaskinit will be stable.
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1197 *
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1198 * We don't include outgoingcpu in the affinity set, use -1 if there is
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1199 * no outgoing CPU. If there are no CPUs left in the affinity set,
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1200 * this function allows the kthread to execute on any CPU.
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1201 */
5d01bbd111d6ff kernel/rcutree_plugin.h Thomas Gleixner 2012-07-16 1202 static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1203 {
5d01bbd111d6ff kernel/rcutree_plugin.h Thomas Gleixner 2012-07-16 1204 struct task_struct *t = rnp->boost_kthread_task;
0aa04b055e71bd kernel/rcu/tree_plugin.h Paul E. McKenney 2015-01-23 1205 unsigned long mask = rcu_rnp_online_cpus(rnp);
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1206 cpumask_var_t cm;
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1207 int cpu;
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1208
5d01bbd111d6ff kernel/rcutree_plugin.h Thomas Gleixner 2012-07-16 1209 if (!t)
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1210 return;
5d01bbd111d6ff kernel/rcutree_plugin.h Thomas Gleixner 2012-07-16 1211 if (!zalloc_cpumask_var(&cm, GFP_KERNEL))
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1212 return;
bc75e99983df1e kernel/rcu/tree_plugin.h Mark Rutland 2016-06-03 1213 for_each_leaf_node_possible_cpu(rnp, cpu)
bc75e99983df1e kernel/rcu/tree_plugin.h Mark Rutland 2016-06-03 1214 if ((mask & leaf_node_cpu_bit(rnp, cpu)) &&
bc75e99983df1e kernel/rcu/tree_plugin.h Mark Rutland 2016-06-03 1215 cpu != outgoingcpu)
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1216 cpumask_set_cpu(cpu, cm);
c2cf0767e98eb4 kernel/rcu/tree_plugin.h Zqiang 2021-11-15 @1217 cpumask_and(cm, cm, housekeeping_cpumask(HK_FLAG_RCU));
5d0b0249730275 kernel/rcu/tree_plugin.h Paul E. McKenney 2014-11-10 1218 if (cpumask_weight(cm) == 0)
c2cf0767e98eb4 kernel/rcu/tree_plugin.h Zqiang 2021-11-15 1219 cpumask_copy(cm, housekeeping_cpumask(HK_FLAG_RCU));
5d01bbd111d6ff kernel/rcutree_plugin.h Thomas Gleixner 2012-07-16 1220 set_cpus_allowed_ptr(t, cm);
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1221 free_cpumask_var(cm);
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1222 }
f8b7fc6b514f34 kernel/rcutree_plugin.h Paul E. McKenney 2011-06-16 1223
:::::: The code at line 1217 was first introduced by commit
:::::: c2cf0767e98eb4487444e5c7ebba491a866811ce rcu: Avoid running boost kthreads on isolated CPUs
:::::: TO: Zqiang <qiang.zhang1211@xxxxxxxxx>
:::::: CC: Paul E. McKenney <paulmck@xxxxxxxxxx>
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0-DAY CI Kernel Test Service, Intel Corporation
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