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SubjectRe: [PATCH] smp_call_function: use inline helpers instead of macros
Hi Arnd,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.11 next-20170511]
[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/Arnd-Bergmann/smp_call_function-use-inline-helpers-instead-of-macros/20170512-004338
config: mips-ip32_defconfig (attached as .config)
compiler: mips64-linux-gnuabi64-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=mips

All errors (new ones prefixed by >>):

arch/mips/mm/c-r4k.c: In function 'r4k_on_each_cpu':
>> arch/mips/mm/c-r4k.c:101:27: error: 'cpu_foreign_map' undeclared (first use in this function)
smp_call_function_many(&cpu_foreign_map[smp_processor_id()],
^~~~~~~~~~~~~~~
arch/mips/mm/c-r4k.c:101:27: note: each undeclared identifier is reported only once for each function it appears in

vim +/cpu_foreign_map +101 arch/mips/mm/c-r4k.c

d374d9374 James Hogan 2016-07-13 85 }
d374d9374 James Hogan 2016-07-13 86
d374d9374 James Hogan 2016-07-13 87 /*
7f3f1d01a Ralf Baechle 2006-05-12 88 * Special Variant of smp_call_function for use by cache functions:
7f3f1d01a Ralf Baechle 2006-05-12 89 *
7f3f1d01a Ralf Baechle 2006-05-12 90 * o No return value
7f3f1d01a Ralf Baechle 2006-05-12 91 * o collapses to normal function call on UP kernels
7f3f1d01a Ralf Baechle 2006-05-12 92 * o collapses to normal function call on systems with a single shared
7f3f1d01a Ralf Baechle 2006-05-12 93 * primary cache.
c8c5f3fd9 Ralf Baechle 2010-10-29 94 * o doesn't disable interrupts on the local CPU
7f3f1d01a Ralf Baechle 2006-05-12 95 */
d374d9374 James Hogan 2016-07-13 96 static inline void r4k_on_each_cpu(unsigned int type,
d374d9374 James Hogan 2016-07-13 97 void (*func)(void *info), void *info)
7f3f1d01a Ralf Baechle 2006-05-12 98 {
7f3f1d01a Ralf Baechle 2006-05-12 99 preempt_disable();
d374d9374 James Hogan 2016-07-13 100 if (r4k_op_needs_ipi(type))
640511ae9 James Hogan 2016-07-13 @101 smp_call_function_many(&cpu_foreign_map[smp_processor_id()],
640511ae9 James Hogan 2016-07-13 102 func, info, 1);
7f3f1d01a Ralf Baechle 2006-05-12 103 func(info);
7f3f1d01a Ralf Baechle 2006-05-12 104 preempt_enable();
7f3f1d01a Ralf Baechle 2006-05-12 105 }
7f3f1d01a Ralf Baechle 2006-05-12 106
ec74e361f Ralf Baechle 2005-07-13 107 /*
ec74e361f Ralf Baechle 2005-07-13 108 * Must die.
ec74e361f Ralf Baechle 2005-07-13 109 */

:::::: The code at line 101 was first introduced by commit
:::::: 640511ae92466800c75da77a3c7f72b8488c93a1 MIPS: c-r4k: Exclude sibling CPUs in SMP calls

:::::: TO: James Hogan <james.hogan@imgtec.com>
:::::: CC: Ralf Baechle <ralf@linux-mips.org>

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