Re: [PATCH 1/2] x86: Expose SERIALIZE for supported cpuid

From: kernel test robot
Date: Mon Jul 06 2020 - 14:07:20 EST


Hi Cathy,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on kvm/linux-next]
[also build test ERROR on tip/auto-latest linux/master linus/master v5.8-rc4 next-20200706]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Cathy-Zhang/Expose-new-features-for-intel-processor/20200706-070640
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
config: x86_64-rhel-7.6 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
# save the attached .config to linux build tree
make W=1 ARCH=x86_64

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

All errors (new ones prefixed by >>):

In file included from arch/x86/kvm/cpuid.c:21:
arch/x86/kvm/cpuid.c: In function 'kvm_set_cpu_caps':
>> arch/x86/kvm/cpuid.h:91:42: error: 'X86_FEATURE_SERIALIZE' undeclared (first use in this function); did you mean 'X86_FEATURE_RETPOLINE'?
91 | #define feature_bit(name) __feature_bit(X86_FEATURE_##name)
| ^~~~~~~~~~~~
arch/x86/kvm/cpuid.c:55:11: note: in expansion of macro 'feature_bit'
55 | #define F feature_bit
| ^~~~~~~~~~~
arch/x86/kvm/cpuid.c:345:3: note: in expansion of macro 'F'
345 | F(SERIALIZE)
| ^
arch/x86/kvm/cpuid.h:91:42: note: each undeclared identifier is reported only once for each function it appears in
91 | #define feature_bit(name) __feature_bit(X86_FEATURE_##name)
| ^~~~~~~~~~~~
arch/x86/kvm/cpuid.c:55:11: note: in expansion of macro 'feature_bit'
55 | #define F feature_bit
| ^~~~~~~~~~~
arch/x86/kvm/cpuid.c:345:3: note: in expansion of macro 'F'
345 | F(SERIALIZE)
| ^

vim +91 arch/x86/kvm/cpuid.h

a0a2260c12d8658 Sean Christopherson 2019-12-17 90
87382003e355592 Sean Christopherson 2019-12-17 @91 #define feature_bit(name) __feature_bit(X86_FEATURE_##name)
87382003e355592 Sean Christopherson 2019-12-17 92

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