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tracing: Point constant hist field type to string literal

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The HIST_FIELD_FL_CONST path uses the fixed "u64" type string.

Point hist_field->type directly to the string literal, matching the
HIST_FIELD_FL_HITCOUNT path. The release path already uses kfree_const(),
so no duplication is needed.

Link: https://patch.msgid.link/20260527023450.2137639-1-pengyu@kylinos.cn
Signed-off-by: Yu Peng <pengyu@kylinos.cn>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Yu Peng
2026-05-27 10:34:50 +08:00
committed by Steven Rostedt
parent 74ae53cb7c
commit 8432a8772b
1 changed files with 1 additions and 3 deletions
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4
kernel/trace/trace_events_hist.c
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@@ -1984,9 +1984,7 @@ static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data,
if (flags & HIST_FIELD_FL_CONST) {
hist_field->fn_num = HIST_FIELD_FN_CONST;
hist_field->size = sizeof(u64);
hist_field->type = kstrdup("u64", GFP_KERNEL);
if (!hist_field->type)
goto free;
hist_field->type = "u64";
goto out;
}