[PATCH 05/10] tracing/probes: Cleanup pointer arithmetic in store_trace_entry_data()
From: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Date: 2026-07-20 10:44:23
Also in:
lkml
Subsystem:
the rest, tracing · Maintainers:
Linus Torvalds, Steven Rostedt, Masami Hiramatsu
From: Masami Hiramatsu (Google) <mhiramat@kernel.org> In store_trace_entry_data(), edata is cast to unsigned long for pointer offset arithmetic before being cast back to unsigned long *. Cast edata to u8 * instead. Assisted-by: Antigravity:gemini-3.5-flash Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> --- kernel/trace/trace_probe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index eb7be3725e85..4899aa5f9230 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c@@ -1246,7 +1246,7 @@ void store_trace_entry_data(void *edata, struct trace_probe *tp, struct pt_regs val = regs_get_kernel_argument(regs, code->param); break; case FETCH_OP_ST_EDATA: - *(unsigned long *)((unsigned long)edata + code->offset) = val; + *(unsigned long *)((u8 *)edata + code->offset) = val; break; case FETCH_OP_END: goto end;