Messages in this thread | | | Date | Wed, 21 Jun 2017 12:16:38 +0800 | From | kbuild test robot <> | Subject | [rcu:rcu/next 116/116] kernel/cpu.c:1833: warning: unused variable 'cpu' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next head: faeb334286b762ba6b829ad62e3d39a97674bb56 commit: faeb334286b762ba6b829ad62e3d39a97674bb56 [116/116] rcu: Migrate callbacks earlier in the CPU-offline timeline config: x86_64-randconfig-b0-06210849 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: git checkout faeb334286b762ba6b829ad62e3d39a97674bb56 # save the attached .config to linux build tree make ARCH=x86_64
All warnings (new ones prefixed by >>):
kernel/cpu.c: In function 'boot_cpu_state_init': >> kernel/cpu.c:1833: warning: unused variable 'cpu'
vim +/cpu +1833 kernel/cpu.c
1817 /* Mark the boot cpu "present", "online" etc for SMP and UP case */ 1818 set_cpu_online(cpu, true); 1819 set_cpu_active(cpu, true); 1820 set_cpu_present(cpu, true); 1821 set_cpu_possible(cpu, true); 1822 1823 #ifdef CONFIG_SMP 1824 __boot_cpu_id = cpu; 1825 #endif 1826 } 1827 1828 /* 1829 * Must be called _AFTER_ setting up the per_cpu areas 1830 */ 1831 void __init boot_cpu_state_init(void) 1832 { > 1833 int cpu; 1834 1835 per_cpu_ptr(&cpuhp_state, smp_processor_id())->state = CPUHP_ONLINE; 1836 #ifdef CONFIG_SMP 1837 for_each_possible_cpu(cpu) 1838 per_cpu_ptr(&cpuhp_state, cpu)->cpu = cpu; 1839 #endif 1840 }
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