tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next head: 771147ecd0f12220493dba0e1e7e91e2eba7841e commit: 2c161784c6969441e409a749088a2a42198760fc [40/42] srcu: Use rcu_segcblist to track SRCU callbacks config: blackfin-allmodconfig (attached as .config) compiler: bfin-uclinux-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 2c161784c6969441e409a749088a2a42198760fc # save the attached .config to linux build tree make.cross ARCH=blackfin
All warnings (new ones prefixed by >>):
include/linux/rcu_segcblist.h: In function 'rcu_segcblist_dump':
arch/blackfin/kernel/module.c:7:40: error: 'mod' undeclared (first use in
this function)
#define pr_fmt(fmt) "module %s: " fmt, mod->name
^
include/linux/printk.h:308:19: note: in expansion of macro 'pr_fmt'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~
>> include/linux/rcu_segcblist.h:672:2: note: in expansion of macro 'pr_info'
pr_info("%p->head = %p\n", rsclp, rsclp->head);
^~~~~~~
arch/blackfin/kernel/module.c:7:40: note: each undeclared identifier is
reported only once for each function it appears in
#define pr_fmt(fmt) "module %s: " fmt, mod->name
^
include/linux/printk.h:308:19: note: in expansion of macro 'pr_fmt'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~
>> include/linux/rcu_segcblist.h:672:2: note: in expansion of macro 'pr_info'
pr_info("%p->head = %p\n", rsclp, rsclp->head);
^~~~~~~
vim +/pr_info +672 include/linux/rcu_segcblist.h
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 656
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 657 /*
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 658 *
Interim function to return rcu_segcblist head pointer. Longer term, the
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 659 *
rcu_segcblist will be used more pervasively, removing the need for this
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 660 *
function.
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 661 */
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 662 static
inline struct rcu_head **rcu_segcblist_tail(struct rcu_segcblist *rsclp)
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 663 {
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 664
WARN_ON_ONCE(rcu_segcblist_empty(rsclp));
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 665 return
rsclp->tails[RCU_NEXT_TAIL];
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 666 }
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 667
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 668 static
inline void rcu_segcblist_dump(struct rcu_segcblist *rsclp)
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 669 {
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 670 int i;
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 671
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 @672
pr_info("%p->head = %p\n", rsclp, rsclp->head);
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 673 for (i
= RCU_DONE_TAIL; i < RCU_CBLIST_NSEGS; i++)
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 674
pr_info("\t->tails[%d] = %p, ->gp_seq[%d] = %ld\n",
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 675
i, rsclp->tails[i], i, rsclp->gp_seq[i]);
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 676
pr_info("->len = %ld, ->len_lazy = %ld\n", rsclp->len, rsclp->len_lazy);
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 677 }
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 678
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 679 /*
f1531c50 kernel/rcu/rcu_segcblist.h Paul E. McKenney 2017-02-08 680 * Do
consistency check on the specified rcu_segcblist structure, but
:::::: The code at line 672 was first introduced by commit
:::::: f1531c507a92aa99bd763292b31ab2f435208528 rcu: Abstract multi-tail
callback list handling
:::::: TO: Paul E. McKenney <[email protected]>
:::::: CC: Paul E. McKenney <[email protected]>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
