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    Subject[PATCH v4 17/17] perf: Drop guest callback (un)register stubs
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    Drop perf's stubs for (un)registering guest callbacks now that KVM
    registration of callbacks is hidden behind GUEST_PERF_EVENTS=y. The only
    other user is x86 XEN_PV, and x86 unconditionally selects PERF_EVENTS.

    No functional change intended.

    Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
    Signed-off-by: Sean Christopherson <seanjc@google.com>
    ---
    include/linux/perf_event.h | 5 -----
    1 file changed, 5 deletions(-)

    diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
    index 0ac7d867ca0c..7b7525e9155f 100644
    --- a/include/linux/perf_event.h
    +++ b/include/linux/perf_event.h
    @@ -1511,11 +1511,6 @@ perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) { }
    static inline void
    perf_bp_event(struct perf_event *event, void *data) { }

    -static inline void perf_register_guest_info_callbacks
    -(struct perf_guest_info_callbacks *cbs) { }
    -static inline void perf_unregister_guest_info_callbacks
    -(struct perf_guest_info_callbacks *cbs) { }
    -
    static inline void perf_event_mmap(struct vm_area_struct *vma) { }

    typedef int (perf_ksymbol_get_name_f)(char *name, int name_len, void *data);
    --
    2.34.0.rc0.344.g81b53c2807-goog
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