Re: [rcu:dev.2020.03.17a 61/80] kernel/rcu/tasks.h:1000:37: error: 'rcu_tasks_rude' undeclared; did you mean 'rcu_tasks_qs'?
From: Paul E. McKenney
Date: Thu Mar 19 2020 - 09:15:38 EST
On Thu, Mar 19, 2020 at 07:01:29PM +0800, kbuild test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.03.17a
> head: 0b42559abf67253005cca061233987ae9a2849a4
> commit: 589081348a37ec02d9b067aa08d4a771ae590e1e [61/80] rcu-tasks: Add RCU tasks to rcutorture writer stall output
> config: nds32-defconfig (attached as .config)
> compiler: nds32le-linux-gcc (GCC) 9.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git checkout 589081348a37ec02d9b067aa08d4a771ae590e1e
> # save the attached .config to linux build tree
> GCC_VERSION=9.2.0 make.cross ARCH=nds32
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
>
> Note: the rcu/dev.2020.03.17a HEAD 0b42559abf67253005cca061233987ae9a2849a4 builds fine.
> It only hurts bisectibility.
FYI, fixed by c6ef38e4d595 ("rcu-tasks: Add RCU tasks to rcutorture writer
stall output").
Thanx, Paul
> All errors (new ones prefixed by >>):
>
> In file included from kernel/rcu/update.c:562:
> kernel/rcu/tasks.h: In function 'show_rcu_tasks_gp_kthreads':
> >> kernel/rcu/tasks.h:1000:37: error: 'rcu_tasks_rude' undeclared (first use in this function); did you mean 'rcu_tasks_qs'?
> 1000 | show_rcu_tasks_generic_gp_kthread(&rcu_tasks_rude, "");
> | ^~~~~~~~~~~~~~
> | rcu_tasks_qs
> kernel/rcu/tasks.h:1000:37: note: each undeclared identifier is reported only once for each function it appears in
>
> vim +1000 kernel/rcu/tasks.h
>
> 996
> 997 void show_rcu_tasks_gp_kthreads(void)
> 998 {
> 999 show_rcu_tasks_generic_gp_kthread(&rcu_tasks, "");
> > 1000 show_rcu_tasks_generic_gp_kthread(&rcu_tasks_rude, "");
> 1001 show_rcu_tasks_trace_gp_kthread();
> 1002 }
> 1003
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
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