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Message-ID: <201706110907.ew5y65HT%fengguang.wu@intel.com>
Date: Sun, 11 Jun 2017 09:16:32 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: [rcu:rcu/next 66/109] kernel/rcu/srcu.c:516:15: error: redefinition
of 'srcu_batches_completed'
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@...ux.vnet.ibm.com>
:::::: CC: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
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