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Re: [PATCH v3 16/16] perf: Drop guest callback (un)register stubs

On 22/09/21 02:05, Sean Christopherson wrote:
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.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
  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 d582dfeb4e20..20327d1046bb 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1505,11 +1505,6 @@ 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);

Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>



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