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Re: [rcu:rcu/next 29/29] kernel/rcu/rcutorture.c:1369:3: error: implicit declaration of function 'srcutorture_get_gp_data'

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On Wed, Apr 19, 2017 at 09:26:55AM +0800, kbuild test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next
> head:   b4d55cac0a93834e7e79143111a0b8ecea49a630
> commit: b4d55cac0a93834e7e79143111a0b8ecea49a630 [29/29] srcu: Make rcutorture writer stalls print SRCU GP state
> config: x86_64-randconfig-x012-201716 (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         git checkout b4d55cac0a93834e7e79143111a0b8ecea49a630
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> 
> All errors (new ones prefixed by >>):
> 
>    kernel/rcu/rcutorture.c: In function 'rcu_torture_stats_print':
> >> kernel/rcu/rcutorture.c:1369:3: error: implicit declaration of function 'srcutorture_get_gp_data' [-Werror=implicit-function-declaration]
>       srcutorture_get_gp_data(cur_ops->ttype, srcu_ctlp,
>       ^~~~~~~~~~~~~~~~~~~~~~~
>    cc1: some warnings being treated as errors

Yes, I should have used "experimental" as branch name.  Apologies for
the noise!

							Thanx, Paul

> vim +/srcutorture_get_gp_data +1369 kernel/rcu/rcutorture.c
> 
>   1363			int __maybe_unused flags = 0;
>   1364			unsigned long __maybe_unused gpnum = 0;
>   1365			unsigned long __maybe_unused completed = 0;
>   1366	
>   1367			rcutorture_get_gp_data(cur_ops->ttype,
>   1368					       &flags, &gpnum, &completed);
> > 1369			srcutorture_get_gp_data(cur_ops->ttype, srcu_ctlp,
>   1370						&flags, &gpnum, &completed);
>   1371			wtp = READ_ONCE(writer_task);
>   1372			pr_alert("??? Writer stall state %s(%d) g%lu c%lu f%#x ->state %#lx\n",
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Re: [rcu:rcu/next 29/29] kernel/rcu/rcutorture.c:1369:3: error:  implicit declaration of function 'srcutorture_get_gp_data' "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 03:40 +0200

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