[rcu:rcu/next 66/109] kernel/rcu/srcu.c:516:15: error: redefinition of 'srcu_batches_completed'

From: kbuild test robot
Date: Sat Jun 10 2017 - 21:16:51 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next
head: 0d02a83770da1e677b09192a22ae93a9788badcd
commit: 5a0465e17a18c467b712a816985b7b8dd8d10c16 [66/109] srcu: Shrink srcu.h by moving docbook and private function
config: mn10300-allmodconfig (attached as .config)
compiler: am33_2.0-linux-gcc (GCC) 6.2.0
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 5a0465e17a18c467b712a816985b7b8dd8d10c16
# save the attached .config to linux build tree
make.cross ARCH=mn10300

Note: the rcu/rcu/next HEAD 0d02a83770da1e677b09192a22ae93a9788badcd builds fine.
It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> kernel/rcu/srcu.c:516:15: error: redefinition of 'srcu_batches_completed'
unsigned long srcu_batches_completed(struct srcu_struct *sp)
^~~~~~~~~~~~~~~~~~~~~~
In file included from kernel/rcu/srcu.c:39:0:
kernel/rcu/rcu.h:495:29: note: previous definition of 'srcu_batches_completed' was here
static inline unsigned long srcu_batches_completed(struct srcu_struct *sp)
^~~~~~~~~~~~~~~~~~~~~~

vim +/srcu_batches_completed +516 kernel/rcu/srcu.c

621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 510 * srcu_batches_completed - return batches completed.
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 511 * @sp: srcu_struct on which to report batch completion.
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 512 *
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 513 * Report the number of batches, correlated with, but not necessarily
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 514 * precisely the same as, the number of grace periods that have elapsed.
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 515 */
a5c198f4 kernel/rcu/srcu.c Paul E. McKenney 2014-11-23 @516 unsigned long srcu_batches_completed(struct srcu_struct *sp)
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 517 {
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 518 return sp->completed;
621934ee kernel/srcu.c Paul E. McKenney 2006-10-04 519 }

:::::: The code at line 516 was first introduced by commit
:::::: a5c198f4f7da6cc48116ca239c59c9f44b753364 rcu: Expand SRCU ->completed to 64 bits

:::::: TO: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
:::::: CC: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

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