--- /dev/null
+From 65ba872a6971c11ceb342c3330f059289c0e6bdb Mon Sep 17 00:00:00 2001
+From: Namhyung Kim <namhyung@kernel.org>
+Date: Thu, 18 Aug 2022 17:36:41 -0700
+Subject: tools headers UAPI: Sync linux/perf_event.h with the kernel sources
+
+From: Namhyung Kim <namhyung@kernel.org>
+
+commit 65ba872a6971c11ceb342c3330f059289c0e6bdb upstream.
+
+To pick the trivial change in:
+
+ 119a784c81270eb8 ("perf/core: Add a new read format to get a number of lost samples")
+
+Signed-off-by: Namhyung Kim <namhyung@kernel.org>
+Acked-by: Jiri Olsa <jolsa@kernel.org>
+Cc: Ian Rogers <irogers@google.com>
+Cc: Ingo Molnar <mingo@kernel.org>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Link: https://lore.kernel.org/r/20220819003644.508916-2-namhyung@kernel.org
+Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/include/uapi/linux/perf_event.h | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+--- a/tools/include/uapi/linux/perf_event.h
++++ b/tools/include/uapi/linux/perf_event.h
+@@ -273,6 +273,7 @@ enum {
+ * { u64 time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
+ * { u64 time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
+ * { u64 id; } && PERF_FORMAT_ID
++ * { u64 lost; } && PERF_FORMAT_LOST
+ * } && !PERF_FORMAT_GROUP
+ *
+ * { u64 nr;
+@@ -280,6 +281,7 @@ enum {
+ * { u64 time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
+ * { u64 value;
+ * { u64 id; } && PERF_FORMAT_ID
++ * { u64 lost; } && PERF_FORMAT_LOST
+ * } cntr[nr];
+ * } && PERF_FORMAT_GROUP
+ * };
+@@ -289,8 +291,9 @@ enum perf_event_read_format {
+ PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1,
+ PERF_FORMAT_ID = 1U << 2,
+ PERF_FORMAT_GROUP = 1U << 3,
++ PERF_FORMAT_LOST = 1U << 4,
+
+- PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
++ PERF_FORMAT_MAX = 1U << 5, /* non-ABI */
+ };
+
+ #define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */