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Re: [PATCH v3 16/16] perf: Drop guest callback (un)register stubs
- To: Sean Christopherson <seanjc@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Marc Zyngier <maz@xxxxxxxxxx>, Guo Ren <guoren@xxxxxxxxxx>, Nick Hu <nickhu@xxxxxxxxxxxxx>, Greentime Hu <green.hu@xxxxxxxxx>, Vincent Chen <deanbo422@xxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>
- From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
- Date: Wed, 22 Sep 2021 08:29:17 +0200
- Authentication-results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@xxxxxxxxxx
- Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Namhyung Kim <namhyung@xxxxxxxxxx>, James Morse <james.morse@xxxxxxx>, Alexandru Elisei <alexandru.elisei@xxxxxxx>, Suzuki K Poulose <suzuki.poulose@xxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Wanpeng Li <wanpengli@xxxxxxxxxxx>, Jim Mattson <jmattson@xxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-perf-users@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kvmarm@xxxxxxxxxxxxxxxxxxxxx, linux-csky@xxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Artem Kashkanov <artem.kashkanov@xxxxxxxxx>, Like Xu <like.xu.linux@xxxxxxxxx>, Zhu Lingshan <lingshan.zhu@xxxxxxxxx>
- Delivery-date: Wed, 22 Sep 2021 06:29:26 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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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