On Wed, 27 May 2026 10:18:27 +0800 Yu Peng <[email protected]> wrote:
> 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. > > Signed-off-by: Yu Peng <[email protected]> > --- > Changes in v2: > - Point hist_field->type directly to "u64" as suggested All new versions of a patch need to start a new thread. Please resend this as a new thread and not a reply. -- Steve > > kernel/trace/trace_events_hist.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/kernel/trace/trace_events_hist.c > b/kernel/trace/trace_events_hist.c > index eb2c2bc8bc3d5..b50f2bd5ff771 100644 > --- a/kernel/trace/trace_events_hist.c > +++ b/kernel/trace/trace_events_hist.c > @@ -1992,9 +1992,7 @@ 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; > } >
