Re: [RFC PATCH v3 2/2] KVM: s390: Extend the USER_SIGP capability

[kernel test robot <lkp@intel.com>]

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Hi Eric,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on kvms390/next]
[also build test WARNING on kvm/queue mst-vhost/linux-next v5.15 next-20211111]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Eric-Farman/s390x-Improvements-to-SIGP-handling-KVM/20211111-043552
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git next
config: s390-defconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/33d624410d4c044eae0849494466c608432cd117
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Eric-Farman/s390x-Improvements-to-SIGP-handling-KVM/20211111-043552
        git checkout 33d624410d4c044eae0849494466c608432cd117
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=s390 

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

All warnings (new ones prefixed by >>):

   In file included from arch/s390/kvm/intercept.c:20:
   arch/s390/kvm/kvm-s390.h: In function 'kvm_s390_vcpu_set_sigp_busy':
>> arch/s390/kvm/kvm-s390.h:93:71: warning: '?:' using integer constants in boolean context [-Wint-in-bool-context]
      93 |         return (atomic_cmpxchg(&vcpu->arch.sigp_busy, 0, 1) == 0) ? 0 : -EBUSY;
--
   In file included from arch/s390/kvm/kvm-s390.c:49:
   arch/s390/kvm/kvm-s390.h: In function 'kvm_s390_vcpu_set_sigp_busy':
>> arch/s390/kvm/kvm-s390.h:93:71: warning: '?:' using integer constants in boolean context [-Wint-in-bool-context]
      93 |         return (atomic_cmpxchg(&vcpu->arch.sigp_busy, 0, 1) == 0) ? 0 : -EBUSY;
   In file included from arch/s390/kvm/trace.h:462,
                    from arch/s390/kvm/kvm-s390.c:53:
   include/trace/define_trace.h: At top level:
   include/trace/define_trace.h:95:42: fatal error: ./trace.h: No such file or directory
      95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
         |                                          ^
   compilation terminated.


vim +93 arch/s390/kvm/kvm-s390.h

    89	
    90	static inline bool kvm_s390_vcpu_set_sigp_busy(struct kvm_vcpu *vcpu)
    91	{
    92		/* Return zero for success, or -EBUSY if another vcpu won */
  > 93		return (atomic_cmpxchg(&vcpu->arch.sigp_busy, 0, 1) == 0) ? 0 : -EBUSY;
    94	}
    95	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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