[tip:WIP.x86/ipi 8/11] arch/x86/kernel/apic/ipi.c:48:6: error: redefinition of 'apic_smt_update'

From: kbuild test robot
Date: Wed Jun 19 2019 - 04:19:41 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/ipi
head: 0663387727c00bb25ce1e76f30deb6b193f591f8
commit: b3b483a0796da8f2c0d91b8594ef0ae593ec29fb [8/11] x86/apic: Add static key to Control IPI shorthands
config: x86_64-randconfig-x015-201924 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
git checkout b3b483a0796da8f2c0d91b8594ef0ae593ec29fb
# save the attached .config to linux build tree
make ARCH=x86_64

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> arch/x86/kernel/apic/ipi.c:48:6: error: redefinition of 'apic_smt_update'
void apic_smt_update(void)
In file included from arch/x86/include/asm/smp.h:13:0,
from arch/x86/kernel/apic/ipi.c:13:
arch/x86/include/asm/apic.h:72:20: note: previous definition of 'apic_smt_update' was here
static inline void apic_smt_update(void) {}

vim +/apic_smt_update +48 arch/x86/kernel/apic/ipi.c

> 48 void apic_smt_update(void)
49 {
50 if (!cpumask_equal(cpu_present_mask, &cpus_booted_once_mask))
51 static_branch_disable(&apic_use_ipi_shorthand);
52 else if (!apic_ipi_shorthand_off)
53 static_branch_enable(&apic_use_ipi_shorthand);
54 }

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

Attachment: .config.gz
Description: application/gzip