Messages in this thread | | | Date | Sat, 19 May 2018 22:15:58 +0800 | From | kbuild test robot <> | Subject | [tip:x86/hyperv 1/5] arch/x86/hyperv/hv_apic.c:68:10: error: implicit declaration of function 'native_apic_mem_read' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/hyperv head: 9a2d78e291a7dea0ae4b4a06ce6bbbe4f1ab7c13 commit: 6b48cb5f8347bc0153ff1d7b075db92e6723ffdb [1/5] X86/Hyper-V: Enlighten APIC access config: x86_64-randconfig-s1-05192043 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: git checkout 6b48cb5f8347bc0153ff1d7b075db92e6723ffdb # save the attached .config to linux build tree make ARCH=x86_64
All errors (new ones prefixed by >>):
arch/x86/hyperv/hv_apic.c: In function 'hv_apic_read': >> arch/x86/hyperv/hv_apic.c:68:10: error: implicit declaration of function 'native_apic_mem_read' [-Werror=implicit-function-declaration] return native_apic_mem_read(reg); ^~~~~~~~~~~~~~~~~~~~ arch/x86/hyperv/hv_apic.c: In function 'hv_apic_write': >> arch/x86/hyperv/hv_apic.c:82:3: error: implicit declaration of function 'native_apic_mem_write' [-Werror=implicit-function-declaration] native_apic_mem_write(reg, val); ^~~~~~~~~~~~~~~~~~~~~ arch/x86/hyperv/hv_apic.c: In function 'hv_apic_init': >> arch/x86/hyperv/hv_apic.c:95:3: error: implicit declaration of function 'apic_set_eoi_write' [-Werror=implicit-function-declaration] apic_set_eoi_write(hv_apic_eoi_write); ^~~~~~~~~~~~~~~~~~ arch/x86/hyperv/hv_apic.c:96:3: error: 'apic' undeclared (first use in this function) apic->read = hv_apic_read; ^~~~ arch/x86/hyperv/hv_apic.c:96:3: note: each undeclared identifier is reported only once for each function it appears in cc1: some warnings being treated as errors
vim +/native_apic_mem_read +68 arch/x86/hyperv/hv_apic.c
54 55 static u32 hv_apic_read(u32 reg) 56 { 57 u32 reg_val, hi; 58 59 switch (reg) { 60 case APIC_EOI: 61 rdmsr(HV_X64_MSR_EOI, reg_val, hi); 62 return reg_val; 63 case APIC_TASKPRI: 64 rdmsr(HV_X64_MSR_TPR, reg_val, hi); 65 return reg_val; 66 67 default: > 68 return native_apic_mem_read(reg); 69 } 70 } 71 72 static void hv_apic_write(u32 reg, u32 val) 73 { 74 switch (reg) { 75 case APIC_EOI: 76 wrmsr(HV_X64_MSR_EOI, val, 0); 77 break; 78 case APIC_TASKPRI: 79 wrmsr(HV_X64_MSR_TPR, val, 0); 80 break; 81 default: > 82 native_apic_mem_write(reg, val); 83 } 84 } 85 86 static void hv_apic_eoi_write(u32 reg, u32 val) 87 { 88 wrmsr(HV_X64_MSR_EOI, val, 0); 89 } 90 91 void __init hv_apic_init(void) 92 { 93 if (ms_hyperv.hints & HV_X64_APIC_ACCESS_RECOMMENDED) { 94 pr_info("Hyper-V: Using MSR based APIC access\n"); > 95 apic_set_eoi_write(hv_apic_eoi_write); 96 apic->read = hv_apic_read; 97 apic->write = hv_apic_write; 98 apic->icr_write = hv_apic_icr_write; 99 apic->icr_read = hv_apic_icr_read; 100 } 101 } 102
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