[PATCH v1 2/2] perf stat: Fix opt->value type for parse_cache_level

From: Ian Rogers

Date: Thu Mar 19 2026 - 18:12:26 EST


Commit f5803651b4a4 ("perf stat: Choose the most disaggregate command
line option") changed aggregation option handling for `perf stat` but
not `perf stat report` leading to parse_cache_level being passed a
struct in the `perf stat` case but erroneously an aggr_mode enum value
for `perf stat report`. Change the `perf stat report` aggregation
handling to use the same opt_aggr_mode as `perf stat`. Also, just pass
the boolean for consistency with other boolean argument handling.

Fixes: f5803651b4a4 ("perf stat: Choose the most disaggregate command line option")
Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/builtin-stat.c | 41 ++++++++++++++++++++-------------------
1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 73c2ba7e3076..a00af7cfd50e 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -164,7 +164,7 @@ struct opt_aggr_mode {
};

/* Turn command line option into most generic aggregation mode setting. */
-static enum aggr_mode opt_aggr_mode_to_aggr_mode(struct opt_aggr_mode *opt_mode)
+static enum aggr_mode opt_aggr_mode_to_aggr_mode(const struct opt_aggr_mode *opt_mode)
{
enum aggr_mode mode = AGGR_GLOBAL;

@@ -1219,8 +1219,8 @@ static int parse_cache_level(const struct option *opt,
int unset __maybe_unused)
{
int level;
- struct opt_aggr_mode *opt_aggr_mode = (struct opt_aggr_mode *)opt->value;
- u32 *aggr_level = (u32 *)opt->data;
+ bool *per_cache = opt->value;
+ u32 *aggr_level = opt->data;

/*
* If no string is specified, aggregate based on the topology of
@@ -1258,7 +1258,7 @@ static int parse_cache_level(const struct option *opt,
return -EINVAL;
}
out:
- opt_aggr_mode->cache = true;
+ *per_cache = true;
*aggr_level = level;
return 0;
}
@@ -2305,24 +2305,23 @@ static struct perf_stat perf_stat = {
static int __cmd_report(int argc, const char **argv)
{
struct perf_session *session;
+ struct opt_aggr_mode opt_mode = {};
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file", "input file name"),
- OPT_SET_UINT(0, "per-socket", &perf_stat.aggr_mode,
- "aggregate counts per processor socket", AGGR_SOCKET),
- OPT_SET_UINT(0, "per-die", &perf_stat.aggr_mode,
- "aggregate counts per processor die", AGGR_DIE),
- OPT_SET_UINT(0, "per-cluster", &perf_stat.aggr_mode,
- "aggregate counts perf processor cluster", AGGR_CLUSTER),
- OPT_CALLBACK_OPTARG(0, "per-cache", &perf_stat.aggr_mode, &perf_stat.aggr_level,
- "cache level",
- "aggregate count at this cache level (Default: LLC)",
+ OPT_BOOLEAN(0, "per-thread", &opt_mode.thread, "aggregate counts per thread"),
+ OPT_BOOLEAN(0, "per-socket", &opt_mode.socket,
+ "aggregate counts per processor socket"),
+ OPT_BOOLEAN(0, "per-die", &opt_mode.die, "aggregate counts per processor die"),
+ OPT_BOOLEAN(0, "per-cluster", &opt_mode.cluster,
+ "aggregate counts per processor cluster"),
+ OPT_CALLBACK_OPTARG(0, "per-cache", &opt_mode.cache, &stat_config.aggr_level,
+ "cache level", "aggregate count at this cache level (Default: LLC)",
parse_cache_level),
- OPT_SET_UINT(0, "per-core", &perf_stat.aggr_mode,
- "aggregate counts per physical processor core", AGGR_CORE),
- OPT_SET_UINT(0, "per-node", &perf_stat.aggr_mode,
- "aggregate counts per numa node", AGGR_NODE),
- OPT_SET_UINT('A', "no-aggr", &perf_stat.aggr_mode,
- "disable CPU count aggregation", AGGR_NONE),
+ OPT_BOOLEAN(0, "per-core", &opt_mode.core,
+ "aggregate counts per physical processor core"),
+ OPT_BOOLEAN(0, "per-node", &opt_mode.node, "aggregate counts per numa node"),
+ OPT_BOOLEAN('A', "no-aggr", &opt_mode.no_aggr,
+ "disable aggregation across CPUs or PMUs"),
OPT_END()
};
struct stat st;
@@ -2330,6 +2329,8 @@ static int __cmd_report(int argc, const char **argv)

argc = parse_options(argc, argv, options, stat_report_usage, 0);

+ perf_stat.aggr_mode = opt_aggr_mode_to_aggr_mode(&opt_mode);
+
if (!input_name || !strlen(input_name)) {
if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
input_name = "-";
@@ -2506,7 +2507,7 @@ int cmd_stat(int argc, const char **argv)
OPT_BOOLEAN(0, "per-die", &opt_mode.die, "aggregate counts per processor die"),
OPT_BOOLEAN(0, "per-cluster", &opt_mode.cluster,
"aggregate counts per processor cluster"),
- OPT_CALLBACK_OPTARG(0, "per-cache", &opt_mode, &stat_config.aggr_level,
+ OPT_CALLBACK_OPTARG(0, "per-cache", &opt_mode.cache, &stat_config.aggr_level,
"cache level", "aggregate count at this cache level (Default: LLC)",
parse_cache_level),
OPT_BOOLEAN(0, "per-core", &opt_mode.core,
--
2.53.0.959.g497ff81fa9-goog