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    SubjectRe: [PATCH 16/25] ia64/salinfo: Convert to hotplug state machine
    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@sgi.com>
    :::::: CC: Tony Luck <tony.luck@intel.com>

    ---
    0-DAY kernel test infrastructure Open Source Technology Center
    https://lists.01.org/pipermail/kbuild-all Intel Corporation
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