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-rw-r--r--tools/include/uapi/linux/perf_event.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 4cd39aaccbe7..82858b697c05 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -465,6 +465,8 @@ struct perf_event_attr {
/*
* User provided data if sigtrap=1, passed back to user via
* siginfo_t::si_perf_data, e.g. to permit user to identify the event.
+ * Note, siginfo_t::si_perf_data is long-sized, and sig_data will be
+ * truncated accordingly on 32 bit architectures.
*/
__u64 sig_data;
};
@@ -1332,9 +1334,9 @@ union perf_mem_data_src {
/* hop level */
#define PERF_MEM_HOPS_0 0x01 /* remote core, same node */
-#define PERF_MEM_HOPS_1 0x02 /* remote node, same socket */
-#define PERF_MEM_HOPS_2 0x03 /* remote socket, same board */
-#define PERF_MEM_HOPS_3 0x04 /* remote board */
+#define PERF_MEM_HOPS_1 0x02 /* remote node, same socket */
+#define PERF_MEM_HOPS_2 0x03 /* remote socket, same board */
+#define PERF_MEM_HOPS_3 0x04 /* remote board */
/* 5-7 available */
#define PERF_MEM_HOPS_SHIFT 43