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Subject[PATCH] perf tools: Fix building in 32 bit platform
On ARM32 building it report following error:

util/data-convert-bt.c: In function 'add_bpf_output_values':
util/data-convert-bt.c:440:3: error: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'unsigned int' [-Werror=format]
cc1: all warnings being treated as errors

Fix it by changing %lu to %zu.

Signed-off-by: Wang Nan <>
Cc: Arnaldo Carvalho de Melo <>
Cc: Jiri Olsa <>
tools/perf/util/data-convert-bt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 4f979bb..7123f4d 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -437,7 +437,7 @@ add_bpf_output_values(struct bt_ctf_event_class *event_class,
int ret;

if (nr_elements * sizeof(u32) != raw_size)
- pr_warning("Incorrect raw_size (%u) in bpf output event, skip %lu bytes\n",
+ pr_warning("Incorrect raw_size (%u) in bpf output event, skip %zu bytes\n",
raw_size, nr_elements * sizeof(u32) - raw_size);

len_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_len");
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