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authorDan Williams <dan.j.williams@intel.com>2025-05-12 22:12:44 -0700
committerDan Williams <dan.j.williams@intel.com>2025-05-12 22:12:44 -0700
commit15ff5d0e90bb044b94d9a4ac57276829861a954d (patch)
tree28bcf60949db629b0b772f6eebf026714dc38fe9 /kernel/trace/trace_output.c
parenta0372b3831785e15de605cd13d2ed78a79a9b435 (diff)
parent7c3f259dfe03f5dcd898126602818a8fbe94d3c5 (diff)
Merge branch 'for-6.16/tsm-mr' into tsm-next
Merge measurement-register infrastructure for v6.16. Resolve conflicts with the establishment of drivers/virt/coco/guest/ for cross-vendor common TSM functionality. Address a mis-merge with a fixup from Lukas: Link: http://lore.kernel.org/20250509134031.70559-1-lukas.bulwahn@redhat.com
Diffstat (limited to 'kernel/trace/trace_output.c')
-rw-r--r--kernel/trace/trace_output.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index fee40ffbd490..b9ab06c99543 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -1042,11 +1042,12 @@ enum print_line_t print_event_fields(struct trace_iterator *iter,
struct trace_event_call *call;
struct list_head *head;
+ lockdep_assert_held_read(&trace_event_sem);
+
/* ftrace defined events have separate call structures */
if (event->type <= __TRACE_LAST_TYPE) {
bool found = false;
- down_read(&trace_event_sem);
list_for_each_entry(call, &ftrace_events, list) {
if (call->event.type == event->type) {
found = true;
@@ -1056,7 +1057,6 @@ enum print_line_t print_event_fields(struct trace_iterator *iter,
if (call->event.type > __TRACE_LAST_TYPE)
break;
}
- up_read(&trace_event_sem);
if (!found) {
trace_seq_printf(&iter->seq, "UNKNOWN TYPE %d\n", event->type);
goto out;