[PATCH] perf powerpc-vpadtl: Fix raw_size of DTL samples

[Wang Yan]

In powerpc_vpadtl_sample(), raw_data of the synthetic sample points to a
struct powerpc_vpadtl_entry (48 bytes), but raw_size is set to
sizeof(record).  record is a struct powerpc_vpadtl_entry pointer, so
sizeof(record) is the size of the pointer (8 bytes on 64-bit) rather
than the size of the record itself.

As a result, consumers that bound their access to raw_data by raw_size
only see or copy the first 8 bytes of each DTL entry instead of the full
record.

Use sizeof(*record) so that raw_size reflects the actual length of the
raw data.

Fixes: 8644834a482a ("perf powerpc: Process the DTL entries in queue and deliver samples")
Signed-off-by: Wang Yan <wangyan01@xxxxxxxxxx>
---
 tools/perf/util/powerpc-vpadtl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/powerpc-vpadtl.c b/tools/perf/util/powerpc-vpadtl.c
index 710f3093f3f9..af6783cfdb53 100644
--- a/tools/perf/util/powerpc-vpadtl.c
+++ b/tools/perf/util/powerpc-vpadtl.c
@@ -196,7 +196,7 @@ static int powerpc_vpadtl_sample(struct powerpc_vpadtl_entry *record,
 	sample.cpumode = PERF_RECORD_MISC_KERNEL;
 	sample.time = save;
 	sample.raw_data = record;
-	sample.raw_size = sizeof(record);
+	sample.raw_size = sizeof(*record);
 	event.sample.header.type = PERF_RECORD_SAMPLE;
 	event.sample.header.misc = sample.cpumode;
 	event.sample.header.size = sizeof(struct perf_event_header);
-- 
2.25.1