[for-next][PATCH 1/3] function_graph: Remove the unused variable func
From: Steven Rostedt
Date: Mon Mar 24 2025 - 17:23:20 EST
From: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
Variable func is not effectively used, so delete it.
kernel/trace/trace_functions_graph.c:925:16: warning: variable ‘func’ set but not used.
This happened because the variable "func" which came from "call->func" was
replaced by "ret_func" coming from "graph_ret->func" but "func" wasn't
removed after the replacement.
Link: https://lore.kernel.org/20250307021412.119107-1-jiapeng.chong@xxxxxxxxxxxxxxxxx
Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=19250
Fixes: ff5c9c576e754 ("ftrace: Add support for function argument to graph tracer")
Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
kernel/trace/trace_functions_graph.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 71b2fb068b6b..ed61ff719aa4 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -922,7 +922,6 @@ print_graph_entry_leaf(struct trace_iterator *iter,
struct ftrace_graph_ent *call;
unsigned long long duration;
unsigned long ret_func;
- unsigned long func;
int args_size;
int cpu = iter->cpu;
int i;
@@ -933,8 +932,6 @@ print_graph_entry_leaf(struct trace_iterator *iter,
call = &entry->graph_ent;
duration = ret_entry->rettime - ret_entry->calltime;
- func = call->func + iter->tr->text_delta;
-
if (data) {
struct fgraph_cpu_data *cpu_data;
--
2.47.2