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Date: Wed, 20 Apr 2022 16:34:16 +0800
From: kernel test robot <lkp@...el.com>
To: Ingo Molnar <mingo@...nel.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mingo-tip:sched/headers 2149/2579] kernel/up.c:15:5: warning: no
previous prototype for 'smp_call_function_single'
tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head: 49e1ec6c70a6eb4b7de9250a455b8b63eb42afbe
commit: fd8fff89ec8a3b5eb545b66dff7a4875b5b5c9ab [2149/2579] headers/deps: genirq: Optimize <linux/interrupt.h> dependencies, remove <linux/hardirq.h>
config: mips-randconfig-r032-20220419 (https://download.01.org/0day-ci/archive/20220420/202204201625.mqL2ajMD-lkp@intel.com/config)
compiler: mipsel-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=fd8fff89ec8a3b5eb545b66dff7a4875b5b5c9ab
git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
git fetch --no-tags mingo-tip sched/headers
git checkout fd8fff89ec8a3b5eb545b66dff7a4875b5b5c9ab
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/interrupt.h:23,
from kernel/up.c:9:
arch/mips/include/asm/irq.h:23:20: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'init_IRQ'
23 | extern void __init init_IRQ(void);
| ^~~~~~~~
>> kernel/up.c:15:5: warning: no previous prototype for 'smp_call_function_single' [-Wmissing-prototypes]
15 | int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
| ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/up.c:31:5: warning: no previous prototype for 'smp_call_function_single_async' [-Wmissing-prototypes]
31 | int smp_call_function_single_async(int cpu, struct __call_single_data *csd)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/up.c:46:6: warning: no previous prototype for 'on_each_cpu_cond_mask' [-Wmissing-prototypes]
46 | void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
| ^~~~~~~~~~~~~~~~~~~~~
>> kernel/up.c:61:5: warning: no previous prototype for 'smp_call_on_cpu' [-Wmissing-prototypes]
61 | int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys)
| ^~~~~~~~~~~~~~~
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for SSB_EMBEDDED
Depends on SSB && SSB_DRIVER_MIPS && SSB_PCICORE_HOSTMODE
Selected by
- BCM47XX_SSB && BCM47XX
vim +/smp_call_function_single +15 kernel/up.c
53ce3d95649087 Andrew Morton 2009-01-09 14
53ce3d95649087 Andrew Morton 2009-01-09 @15 int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
53ce3d95649087 Andrew Morton 2009-01-09 16 int wait)
53ce3d95649087 Andrew Morton 2009-01-09 17 {
081192b25c2d46 David Daney 2013-09-11 18 unsigned long flags;
081192b25c2d46 David Daney 2013-09-11 19
1e474b28e78897 Paul E. McKenney 2020-02-05 20 if (cpu != 0)
1e474b28e78897 Paul E. McKenney 2020-02-05 21 return -ENXIO;
93423b8665f43a Ingo Molnar 2009-01-11 22
081192b25c2d46 David Daney 2013-09-11 23 local_irq_save(flags);
081192b25c2d46 David Daney 2013-09-11 24 func(info);
081192b25c2d46 David Daney 2013-09-11 25 local_irq_restore(flags);
93423b8665f43a Ingo Molnar 2009-01-11 26
53ce3d95649087 Andrew Morton 2009-01-09 27 return 0;
53ce3d95649087 Andrew Morton 2009-01-09 28 }
53ce3d95649087 Andrew Morton 2009-01-09 29 EXPORT_SYMBOL(smp_call_function_single);
fa688207c9db48 David Daney 2013-09-11 30
1139aeb1c521eb Arnd Bergmann 2021-05-05 @31 int smp_call_function_single_async(int cpu, struct __call_single_data *csd)
40c01e8bd5575e Christoph Hellwig 2013-11-14 32 {
40c01e8bd5575e Christoph Hellwig 2013-11-14 33 unsigned long flags;
40c01e8bd5575e Christoph Hellwig 2013-11-14 34
40c01e8bd5575e Christoph Hellwig 2013-11-14 35 local_irq_save(flags);
40c01e8bd5575e Christoph Hellwig 2013-11-14 36 csd->func(csd->info);
40c01e8bd5575e Christoph Hellwig 2013-11-14 37 local_irq_restore(flags);
08eed44c7249d3 Jan Kara 2014-02-24 38 return 0;
40c01e8bd5575e Christoph Hellwig 2013-11-14 39 }
c46fff2a3b2979 Frederic Weisbecker 2014-02-24 40 EXPORT_SYMBOL(smp_call_function_single_async);
40c01e8bd5575e Christoph Hellwig 2013-11-14 41
fa688207c9db48 David Daney 2013-09-11 42 /*
fa688207c9db48 David Daney 2013-09-11 43 * Preemption is disabled here to make sure the cond_func is called under the
f0fffaff0b8960 Bhaskar Chowdhury 2021-05-06 44 * same conditions in UP and SMP.
fa688207c9db48 David Daney 2013-09-11 45 */
5671d814dbd204 Sebastian Andrzej Siewior 2020-01-17 @46 void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
cb923159bbb8cc Sebastian Andrzej Siewior 2020-01-17 47 void *info, bool wait, const struct cpumask *mask)
fa688207c9db48 David Daney 2013-09-11 48 {
fa688207c9db48 David Daney 2013-09-11 49 unsigned long flags;
fa688207c9db48 David Daney 2013-09-11 50
fa688207c9db48 David Daney 2013-09-11 51 preempt_disable();
a5aa5ce3005972 Nadav Amit 2021-02-20 52 if ((!cond_func || cond_func(0, info)) && cpumask_test_cpu(0, mask)) {
fa688207c9db48 David Daney 2013-09-11 53 local_irq_save(flags);
fa688207c9db48 David Daney 2013-09-11 54 func(info);
fa688207c9db48 David Daney 2013-09-11 55 local_irq_restore(flags);
fa688207c9db48 David Daney 2013-09-11 56 }
fa688207c9db48 David Daney 2013-09-11 57 preempt_enable();
fa688207c9db48 David Daney 2013-09-11 58 }
7d49b28a80b830 Rik van Riel 2018-09-25 59 EXPORT_SYMBOL(on_each_cpu_cond_mask);
7d49b28a80b830 Rik van Riel 2018-09-25 60
df8ce9d78a4e7f Juergen Gross 2016-08-29 @61 int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys)
:::::: The code at line 15 was first introduced by commit
:::::: 53ce3d9564908794ae7dd32969089b57df5fc098 smp_call_function_single(): be slightly less stupid
:::::: TO: Andrew Morton <akpm@...ux-foundation.org>
:::::: CC: Ingo Molnar <mingo@...e.hu>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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