Re: [PATCH v4 11/17] x86/clearcpuid: Clear CPUID bit in CPUID faulting

kbuild test robot
2019-03-04T22:04:34Z

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Hi Peter,

I love your patch! Perhaps something to improve:

[auto build test WARNING on kvm/linux-next]
[also build test WARNING on v5.0 next-20190304]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Fenghua-Yu/x86-split_lock-Enable-AC-exception-for-split-locked-accesses/20190305-044643
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
config: x86_64-randconfig-x017-201909 (attached as .config)
compiler: gcc-8 (Debian 8.2.0-21) 8.2.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All warnings (new ones prefixed by >>):

In file included from arch/x86/kernel/cpu/intel.c:22:
>> arch/x86/include/asm/insn-eval.h:18:39: warning: 'struct insn' declared inside parameter list will not be visible outside of this definition or declaration
void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs);
^~~~
arch/x86/include/asm/insn-eval.h:19:34: warning: 'struct insn' declared inside parameter list will not be visible outside of this definition or declaration
int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs);
^~~~

vim +18 arch/x86/include/asm/insn-eval.h

4efea85f Ricardo Neri 2017-10-27 17
32542ee2 Ricardo Neri 2017-10-27 @18 void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs);
e5e45f11 Ricardo Neri 2017-10-27 19 int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs);
bd5a410a Ricardo Neri 2017-10-27 20 unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx);
e2a5dca7 Borislav Petkov 2017-11-23 21 int insn_get_code_seg_params(struct pt_regs *regs);
32542ee2 Ricardo Neri 2017-10-27 22

:::::: The code at line 18 was first introduced by commit
:::::: 32542ee295bec38e5e1608f8c9d6d28e5a7e6112 x86/mpx, x86/insn: Relocate insn util functions to a new insn-eval file

:::::: TO: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>

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