On Mon, Sep 11, 2023, Jinrong Liang wrote: > +static void test_fixed_counters(void) > +{ > + uint8_t nr_fixed_counters = kvm_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS); > + uint32_t ecx; > + uint8_t edx; > + > + for (edx = 0; edx <= nr_fixed_counters; edx++) > + /* KVM doesn't emulate more fixed counters than it can support. */ > + for (ecx = 0; ecx <= (BIT_ULL(nr_fixed_counters) - 1); ecx++) > + __test_fixed_counters(ecx, edx); Outer for-loop needs curly braces.