Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "Two small fixes for perf:

   - the move to support cross arch annotation introduced per arch
     initialization requirements, fullfill them for s/390 (Christian
     Borntraeger)

   - add the missing initialization to the LBR entries to avoid exposing
     random or stale data"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Avoid exposing wrong/stale data in intel_pmu_lbr_read_32()
  perf annotate s390: Fix perf annotate error -95 (4.10 regression)

2 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 81b321ace8e0..f924629836a8 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -507,6 +507,9 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc)
                 cpuc->lbr_entries[i].to         = msr_lastbranch.to;
                 cpuc->lbr_entries[i].mispred    = 0;
                 cpuc->lbr_entries[i].predicted  = 0;
+                cpuc->lbr_entries[i].in_tx      = 0;
+                cpuc->lbr_entries[i].abort      = 0;
+                cpuc->lbr_entries[i].cycles     = 0;
                 cpuc->lbr_entries[i].reserved   = 0;
         }
         cpuc->lbr_stack.nr = i;
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 273f21fa32b5..7aa57225cbf7 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -130,6 +130,12 @@ static struct arch architectures[] = {
                 .name = "powerpc",
                 .init = powerpc__annotate_init,
         },
+        {
+                .name = "s390",
+                .objdump =  {
+                        .comment_char = '#',
+                },
+        },
 };
 
 static void ins__delete(struct ins_operands *ops)