Merge tag 'v6.4-rc5' into media_stage

Linux 6.4-rc5

* tag 'v6.4-rc5': (919 commits)
  Linux 6.4-rc5
  leds: qcom-lpg: Fix PWM period limits
  selftests/ftrace: Choose target function for filter test from samples
  KVM: selftests: Add test for race in kvm_recalculate_apic_map()
  KVM: x86: Bail from kvm_recalculate_phys_map() if x2APIC ID is out-of-bounds
  KVM: x86: Account fastpath-only VM-Exits in vCPU stats
  KVM: SVM: vNMI pending bit is V_NMI_PENDING_MASK not V_NMI_BLOCKING_MASK
  KVM: x86/mmu: Grab memslot for correct address space in NX recovery worker
  tpm, tpm_tis: correct tpm_tis_flags enumeration values
  Revert "ext4: remove ac->ac_found > sbi->s_mb_min_to_scan dead check in ext4_mb_check_limits"
  media: uvcvideo: Don't expose unsupported formats to userspace
  media: v4l2-subdev: Fix missing kerneldoc for client_caps
  media: staging: media: imx: initialize hs_settle to avoid warning
  media: v4l2-mc: Drop subdev check in v4l2_create_fwnode_links_to_pad()
  riscv: Implement missing huge_ptep_get
  riscv: Fix huge_ptep_set_wrprotect when PTE is a NAPOT
  module/decompress: Fix error checking on zstd decompression
  fork, vhost: Use CLONE_THREAD to fix freezer/ps regression
  dt-bindings: serial: 8250_omap: add rs485-rts-active-high
  selinux: don't use make's grouped targets feature yet
  ...

1 files changed, 25 insertions, 13 deletions

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 356c07f03be6..c2dbb5647e75 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -282,6 +282,7 @@ void evsel__init(struct evsel *evsel,
 	evsel->bpf_fd	   = -1;
 	INIT_LIST_HEAD(&evsel->config_terms);
 	INIT_LIST_HEAD(&evsel->bpf_counter_list);
+	INIT_LIST_HEAD(&evsel->bpf_filters);
 	perf_evsel__object.init(evsel);
 	evsel->sample_size = __evsel__sample_size(attr->sample_type);
 	evsel__calc_id_pos(evsel);
@@ -290,6 +291,7 @@ void evsel__init(struct evsel *evsel,
 	evsel->per_pkg_mask  = NULL;
 	evsel->collect_stat  = false;
 	evsel->pmu_name      = NULL;
+	evsel->skippable     = false;
 }
 
 struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx)
@@ -828,26 +830,26 @@ bool evsel__name_is(struct evsel *evsel, const char *name)
 
 const char *evsel__group_pmu_name(const struct evsel *evsel)
 {
-	const struct evsel *leader;
+	struct evsel *leader = evsel__leader(evsel);
+	struct evsel *pos;
 
-	/* If the pmu_name is set use it. pmu_name isn't set for CPU and software events. */
-	if (evsel->pmu_name)
-		return evsel->pmu_name;
 	/*
 	 * Software events may be in a group with other uncore PMU events. Use
-	 * the pmu_name of the group leader to avoid breaking the software event
-	 * out of the group.
+	 * the pmu_name of the first non-software event to avoid breaking the
+	 * software event out of the group.
 	 *
 	 * Aux event leaders, like intel_pt, expect a group with events from
 	 * other PMUs, so substitute the AUX event's PMU in this case.
 	 */
-	leader  = evsel__leader(evsel);
-	if ((evsel->core.attr.type == PERF_TYPE_SOFTWARE || evsel__is_aux_event(leader)) &&
-	    leader->pmu_name) {
-		return leader->pmu_name;
+	if (evsel->core.attr.type == PERF_TYPE_SOFTWARE || evsel__is_aux_event(leader)) {
+		/* Starting with the leader, find the first event with a named PMU. */
+		for_each_group_evsel(pos, leader) {
+			if (pos->pmu_name)
+				return pos->pmu_name;
+		}
 	}
 
-	return "cpu";
+	return evsel->pmu_name ?: "cpu";
 }
 
 const char *evsel__metric_id(const struct evsel *evsel)
@@ -1725,9 +1727,13 @@ static int get_group_fd(struct evsel *evsel, int cpu_map_idx, int thread)
 		return -1;
 
 	fd = FD(leader, cpu_map_idx, thread);
-	BUG_ON(fd == -1);
+	BUG_ON(fd == -1 && !leader->skippable);
 
-	return fd;
+	/*
+	 * When the leader has been skipped, return -2 to distinguish from no
+	 * group leader case.
+	 */
+	return fd == -1 ? -2 : fd;
 }
 
 static void evsel__remove_fd(struct evsel *pos, int nr_cpus, int nr_threads, int thread_idx)
@@ -2109,6 +2115,12 @@ retry_open:
 
 			group_fd = get_group_fd(evsel, idx, thread);
 
+			if (group_fd == -2) {
+				pr_debug("broken group leader for %s\n", evsel->name);
+				err = -EINVAL;
+				goto out_close;
+			}
+
 			test_attr__ready();
 
 			/* Debug message used by test scripts */