Messages in this thread | | | Date | Tue, 29 Oct 2019 13:42:40 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH v2] x86: Add trace points to (nearly) all vectors |
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Hi Andi,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/auto-latest] [cannot apply to v5.4-rc5 next-20191028] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Andi-Kleen/x86-Add-trace-points-to-nearly-all-vectors/20191029-062009 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git a5b576bfb3ba85d3e356f9900dce1428d4760582 config: x86_64-randconfig-a004-201943 (attached as .config) compiler: gcc-4.9 (Debian 4.9.2-10+deb8u1) 4.9.2 reproduce: # 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@intel.com>
All errors (new ones prefixed by >>):
arch/x86/kernel/kvm.c: In function 'do_async_page_fault': >> arch/x86/kernel/kvm.c:250:2: error: implicit declaration of function 'trace_async_page_fault_entry' [-Werror=implicit-function-declaration] trace_async_page_fault_entry(0); ^ >> arch/x86/kernel/kvm.c:269:2: error: implicit declaration of function 'trace_async_page_fault_exit' [-Werror=implicit-function-declaration] trace_async_page_fault_exit(0); ^ cc1: some warnings being treated as errors
vim +/trace_async_page_fault_entry +250 arch/x86/kernel/kvm.c
244 245 dotraplinkage void 246 do_async_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address) 247 { 248 enum ctx_state prev_state; 249 > 250 trace_async_page_fault_entry(0); 251 252 switch (kvm_read_and_reset_pf_reason()) { 253 default: 254 do_page_fault(regs, error_code, address); 255 break; 256 case KVM_PV_REASON_PAGE_NOT_PRESENT: 257 /* page is swapped out by the host. */ 258 prev_state = exception_enter(); 259 kvm_async_pf_task_wait((u32)address, !user_mode(regs)); 260 exception_exit(prev_state); 261 break; 262 case KVM_PV_REASON_PAGE_READY: 263 rcu_irq_enter(); 264 kvm_async_pf_task_wake((u32)address); 265 rcu_irq_exit(); 266 break; 267 } 268 > 269 trace_async_page_fault_exit(0); 270 } 271 NOKPROBE_SYMBOL(do_async_page_fault); 272
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