* [tip:WIP.sched/core 162/162] arch/arm64/kernel/psci.c:48:50: error: implicit declaration of function '__pa'
@ 2017-02-06 1:56 kbuild test robot
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From: kbuild test robot @ 2017-02-06 1:56 UTC (permalink / raw)
To: Ingo Molnar; +Cc: kbuild-all, linux-kernel, tipbuild
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core
head: 38c7fc1c938c469af27c032bf4eab0c4aaf4eba1
commit: 38c7fc1c938c469af27c032bf4eab0c4aaf4eba1 [162/162] sched/headers: Reduce header dependencies
config: arm64-alldefconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
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
git checkout 38c7fc1c938c469af27c032bf4eab0c4aaf4eba1
# save the attached .config to linux build tree
make.cross ARCH=arm64
All errors (new ones prefixed by >>):
arch/arm64/kernel/psci.c: In function 'cpu_psci_cpu_boot':
>> arch/arm64/kernel/psci.c:48:50: error: implicit declaration of function '__pa' [-Werror=implicit-function-declaration]
int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_entry));
^~~~
cc1: some warnings being treated as errors
vim +/__pa +48 arch/arm64/kernel/psci.c
00ef54bb Mark Rutland 2013-10-24 32 {
00ef54bb Mark Rutland 2013-10-24 33 return 0;
00ef54bb Mark Rutland 2013-10-24 34 }
00ef54bb Mark Rutland 2013-10-24 35
cd1aebf5 Mark Rutland 2013-10-24 36 static int __init cpu_psci_cpu_prepare(unsigned int cpu)
00ef54bb Mark Rutland 2013-10-24 37 {
00ef54bb Mark Rutland 2013-10-24 38 if (!psci_ops.cpu_on) {
00ef54bb Mark Rutland 2013-10-24 39 pr_err("no cpu_on method, not booting CPU%d\n", cpu);
00ef54bb Mark Rutland 2013-10-24 40 return -ENODEV;
00ef54bb Mark Rutland 2013-10-24 41 }
00ef54bb Mark Rutland 2013-10-24 42
652af899 Mark Rutland 2013-10-24 43 return 0;
00ef54bb Mark Rutland 2013-10-24 44 }
00ef54bb Mark Rutland 2013-10-24 45
652af899 Mark Rutland 2013-10-24 46 static int cpu_psci_cpu_boot(unsigned int cpu)
652af899 Mark Rutland 2013-10-24 47 {
652af899 Mark Rutland 2013-10-24 @48 int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_entry));
652af899 Mark Rutland 2013-10-24 49 if (err)
288ac26c Vladimir Murzin 2014-02-28 50 pr_err("failed to boot CPU%d (%d)\n", cpu, err);
652af899 Mark Rutland 2013-10-24 51
652af899 Mark Rutland 2013-10-24 52 return err;
00ef54bb Mark Rutland 2013-10-24 53 }
00ef54bb Mark Rutland 2013-10-24 54
831ccf79 Mark Rutland 2013-10-24 55 #ifdef CONFIG_HOTPLUG_CPU
831ccf79 Mark Rutland 2013-10-24 56 static int cpu_psci_cpu_disable(unsigned int cpu)
:::::: The code at line 48 was first introduced by commit
:::::: 652af899799354049b273af897b798b8f03fdd88 arm64: factor out spin-table boot method
:::::: TO: Mark Rutland <mark.rutland@arm.com>
:::::: CC: Catalin Marinas <catalin.marinas@arm.com>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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