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
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