Re: [PATCH v8 09/14] lockdep: Apply crossrelease to completions

kbuild test robot
2017-08-07T10:21:41Z

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Hi Byungchul,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.13-rc4 next-20170804]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Byungchul-Park/lockdep-Implement-crossrelease-feature/20170807-172617
config: alpha-allmodconfig (attached as .config)
compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=alpha

All errors (new ones prefixed by >>):

warning: (LOCKDEP_COMPLETE) selects LOCKDEP_CROSSRELEASE which has unmet direct dependencies (PROVE_LOCKING)
warning: (LOCKDEP_COMPLETE) selects LOCKDEP_CROSSRELEASE which has unmet direct dependencies (PROVE_LOCKING)
In file included from include/linux/srcutree.h:28:0,
from include/linux/srcu.h:62,
from include/linux/notifier.h:15,
from include/linux/memory_hotplug.h:6,
from include/linux/mmzone.h:771,
from include/linux/gfp.h:5,
from include/linux/mm.h:9,
from include/linux/pid_namespace.h:6,
from include/linux/ptrace.h:9,
from arch/alpha/kernel/asm-offsets.c:10:
>> include/linux/completion.h:32:27: error: field 'map' has incomplete type
struct lockdep_map_cross map;
^~~
make[2]: *** [arch/alpha/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [sub-make] Error 2

vim +/map +32 include/linux/completion.h

15
16 /*
17 * struct completion - structure used to maintain state for a "completion"
18 *
19 * This is the opaque structure used to maintain the state for a "completion".
20 * Completions currently use a FIFO to queue threads that have to wait for
21 * the "completion" event.
22 *
23 * See also: complete(), wait_for_completion() (and friends _timeout,
24 * _interruptible, _interruptible_timeout, and _killable), init_completion(),
25 * reinit_completion(), and macros DECLARE_COMPLETION(),
26 * DECLARE_COMPLETION_ONSTACK().
27 */
28 struct completion {
29 unsigned int done;
30 wait_queue_head_t wait;
31 #ifdef CONFIG_LOCKDEP_COMPLETE
> 32 struct lockdep_map_cross map;
33 #endif
34 };
35

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