Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

[firefly-linux-kernel-4.4.55.git] / kernel / events / core.c

diff --git a/kernel/events/core.c b/kernel/events/core.c
index ea02109aee77e057713ff8787f5e2d6eb9f9fb23..39db20c6248e47c940bd8721c41ade530e1eb5c9 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5375,9 +5375,15 @@ void perf_output_sample(struct perf_output_handle *handle,
 
        if (sample_type & PERF_SAMPLE_RAW) {
                if (data->raw) {
-                       perf_output_put(handle, data->raw->size);
-                       __output_copy(handle, data->raw->data,
-                                          data->raw->size);
+                       u32 raw_size = data->raw->size;
+                       u32 real_size = round_up(raw_size + sizeof(u32),
+                                                sizeof(u64)) - sizeof(u32);
+                       u64 zero = 0;
+
+                       perf_output_put(handle, real_size);
+                       __output_copy(handle, data->raw->data, raw_size);
+                       if (real_size - raw_size)
+                               __output_copy(handle, &zero, real_size - raw_size);
                } else {
                        struct {
                                u32     size;
@@ -5509,8 +5515,7 @@ void perf_prepare_sample(struct perf_event_header *header,
                else
                        size += sizeof(u32);
 
-               WARN_ON_ONCE(size & (sizeof(u64)-1));
-               header->size += size;
+               header->size += round_up(size, sizeof(u64));
        }
 
        if (sample_type & PERF_SAMPLE_BRANCH_STACK) {