Re: [PATCH 16/25] ia64/salinfo: Convert to hotplug state machine

From: kbuild test robot
Date: Thu Nov 03 2016 - 11:45:50 EST


Hi Sebastian,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.9-rc3]
[cannot apply to next-20161028]
[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/Sebastian-Andrzej-Siewior/fs-buffer-Convert-to-hotplug-state-machine/20161103-230222
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=ia64

All error/warnings (new ones prefixed by >>):

In file included from include/linux/kernel.h:12:0,
from include/linux/list.h:8,
from include/linux/kobject.h:20,
from include/linux/device.h:17,
from include/linux/node.h:17,
from include/linux/cpu.h:16,
from arch/ia64/kernel/salinfo.c:40:
arch/ia64/kernel/salinfo.c: In function 'salinfo_cpu_pre_down':
>> arch/ia64/kernel/salinfo.c:572:38: error: 'flags' undeclared (first use in this function)
spin_lock_irqsave(&data_saved_lock, flags);
^
include/linux/typecheck.h:10:9: note: in definition of macro 'typecheck'
typeof(x) __dummy2; \
^
include/linux/spinlock.h:337:2: note: in expansion of macro 'raw_spin_lock_irqsave'
raw_spin_lock_irqsave(spinlock_check(lock), flags); \
^~~~~~~~~~~~~~~~~~~~~
>> arch/ia64/kernel/salinfo.c:572:2: note: in expansion of macro 'spin_lock_irqsave'
spin_lock_irqsave(&data_saved_lock, flags);
^~~~~~~~~~~~~~~~~
arch/ia64/kernel/salinfo.c:572:38: note: each undeclared identifier is reported only once for each function it appears in
spin_lock_irqsave(&data_saved_lock, flags);
^
include/linux/typecheck.h:10:9: note: in definition of macro 'typecheck'
typeof(x) __dummy2; \
^
include/linux/spinlock.h:337:2: note: in expansion of macro 'raw_spin_lock_irqsave'
raw_spin_lock_irqsave(spinlock_check(lock), flags); \
^~~~~~~~~~~~~~~~~~~~~
>> arch/ia64/kernel/salinfo.c:572:2: note: in expansion of macro 'spin_lock_irqsave'
spin_lock_irqsave(&data_saved_lock, flags);
^~~~~~~~~~~~~~~~~
>> include/linux/typecheck.h:11:18: warning: comparison of distinct pointer types lacks a cast
(void)(&__dummy == &__dummy2); \
^
>> include/linux/spinlock.h:207:3: note: in expansion of macro 'typecheck'
typecheck(unsigned long, flags); \
^~~~~~~~~
include/linux/spinlock.h:337:2: note: in expansion of macro 'raw_spin_lock_irqsave'
raw_spin_lock_irqsave(spinlock_check(lock), flags); \
^~~~~~~~~~~~~~~~~~~~~
>> arch/ia64/kernel/salinfo.c:572:2: note: in expansion of macro 'spin_lock_irqsave'
spin_lock_irqsave(&data_saved_lock, flags);
^~~~~~~~~~~~~~~~~

vim +/flags +572 arch/ia64/kernel/salinfo.c

f0c5b094 Sebastian Andrzej Siewior 2016-11-03 566
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 567 static int salinfo_cpu_pre_down(unsigned int cpu)
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 568 {
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 569 unsigned int i, end = ARRAY_SIZE(salinfo_data);
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 570 struct salinfo_data *data;
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 571
e026cca0 Keith Owens 2006-01-06 @572 spin_lock_irqsave(&data_saved_lock, flags);
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 573 for (i = 0, data = salinfo_data; i < end; ++i, ++data) {
e026cca0 Keith Owens 2006-01-06 574 struct salinfo_data_saved *data_saved;
f0c5b094 Sebastian Andrzej Siewior 2016-11-03 575 int j = ARRAY_SIZE(data->data_saved) - 1;

:::::: The code at line 572 was first introduced by commit
:::::: e026cca0f2c09c4c28c902db6384fd8a412671d6 [IA64] Add hotplug cpu to salinfo.c, replace semaphore with mutex

:::::: TO: Keith Owens <kaos@xxxxxxx>
:::::: CC: Tony Luck <tony.luck@xxxxxxxxx>

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