diff options
| author | Donglin Peng <pengdonglin@xiaomi.com> | 2026-01-12 10:16:01 +0800 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2026-01-23 13:34:38 -0500 |
| commit | c9703d17d2c86eda38fe4917ca70c27ec9dbe162 (patch) | |
| tree | 2e8c5330314772fe39bd6c403999575a6073aa9e /kernel | |
| parent | 00f13e28a9c3acd40f0551cde7e9d2d1a41585bf (diff) | |
function_graph: Fix args pointer mismatch in print_graph_retval()
When funcgraph-args and funcgraph-retaddr are both enabled, many kernel
functions display invalid parameters in trace logs.
The issue occurs because print_graph_retval() passes a mismatched args
pointer to print_function_args(). Fix this by retrieving the correct
args pointer using the FGRAPH_ENTRY_ARGS() macro.
Link: https://patch.msgid.link/20260112021601.1300479-1-dolinux.peng@gmail.com
Fixes: f83ac7544fbf ("function_graph: Enable funcgraph-args and funcgraph-retaddr to work simultaneously")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Donglin Peng <pengdonglin@xiaomi.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_functions_graph.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c index b1e9c9913309..1de6f1573621 100644 --- a/kernel/trace/trace_functions_graph.c +++ b/kernel/trace/trace_functions_graph.c @@ -901,7 +901,7 @@ static void print_graph_retval(struct trace_seq *s, struct ftrace_graph_ent_entr trace_seq_printf(s, "%ps", func); if (args_size >= FTRACE_REGS_MAX_ARGS * sizeof(long)) { - print_function_args(s, entry->args, (unsigned long)func); + print_function_args(s, FGRAPH_ENTRY_ARGS(entry), (unsigned long)func); trace_seq_putc(s, ';'); } else trace_seq_puts(s, "();"); |