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Subject[PATCH -next] tracing: Remove set but not used variable 'ret'
Date
Fixes gcc '-Wunused-but-set-variable' warning:

kernel/trace/trace_events_hist.c: In function 'unregister_field_var_hists':
kernel/trace/trace_events_hist.c:5228:6: warning:
variable ‘ret’ set but not used [-Wunused-but-set-variable]

It never used since introduction.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
---
kernel/trace/trace_events_hist.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index c1abd63f1d6c..af4da32f7eab 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -5225,13 +5225,12 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data)
struct trace_event_file *file;
unsigned int i;
char *cmd;
- int ret;

for (i = 0; i < hist_data->n_field_var_hists; i++) {
file = hist_data->field_var_hists[i]->hist_data->event_file;
cmd = hist_data->field_var_hists[i]->cmd;
- ret = event_hist_trigger_func(&trigger_hist_cmd, file,
- "!hist", "hist", cmd);
+ event_hist_trigger_func(&trigger_hist_cmd, file,
+ "!hist", "hist", cmd);
}
}

--
2.25.4
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