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Message-Id: <20230728001212.457900-4-irogers@google.com>
Date: Thu, 27 Jul 2023 17:12:12 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Eduard Zingerman <eddyz87@...il.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Rob Herring <robh@...nel.org>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
bpf@...r.kernel.org, Wang Nan <wangnan0@...wei.com>,
Wang ShaoBo <bobo.shaobowang@...wei.com>,
YueHaibing <yuehaibing@...wei.com>, He Kuang <hekuang@...wei.com>
Cc: Ian Rogers <irogers@...gle.com>
Subject: [PATCH v1 3/3] perf parse-events: Remove array remnants
parse_events_array was set up by event term parsing, which no longer
exists. Remove this struct and references to it.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/util/bpf-loader.c | 101 ---------------------------------
tools/perf/util/parse-events.c | 8 ---
tools/perf/util/parse-events.h | 10 ----
3 files changed, 119 deletions(-)
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 44cde27d6389..108eca9ddad4 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1091,16 +1091,12 @@ enum bpf_map_op_type {
enum bpf_map_key_type {
BPF_MAP_KEY_ALL,
- BPF_MAP_KEY_RANGES,
};
struct bpf_map_op {
struct list_head list;
enum bpf_map_op_type op_type;
enum bpf_map_key_type key_type;
- union {
- struct parse_events_array array;
- } k;
union {
u64 value;
struct evsel *evsel;
@@ -1116,8 +1112,6 @@ bpf_map_op__delete(struct bpf_map_op *op)
{
if (!list_empty(&op->list))
list_del_init(&op->list);
- if (op->key_type == BPF_MAP_KEY_RANGES)
- parse_events__clear_array(&op->k.array);
free(op);
}
@@ -1196,18 +1190,6 @@ bpf_map_op_setkey(struct bpf_map_op *op, struct parse_events_term *term)
if (!term)
return 0;
- if (term->array.nr_ranges) {
- size_t memsz = term->array.nr_ranges *
- sizeof(op->k.array.ranges[0]);
-
- op->k.array.ranges = memdup(term->array.ranges, memsz);
- if (!op->k.array.ranges) {
- pr_debug("Not enough memory to alloc indices for map\n");
- return -ENOMEM;
- }
- op->key_type = BPF_MAP_KEY_RANGES;
- op->k.array.nr_ranges = term->array.nr_ranges;
- }
return 0;
}
@@ -1244,18 +1226,6 @@ bpf_map_op__clone(struct bpf_map_op *op)
}
INIT_LIST_HEAD(&newop->list);
- if (op->key_type == BPF_MAP_KEY_RANGES) {
- size_t memsz = op->k.array.nr_ranges *
- sizeof(op->k.array.ranges[0]);
-
- newop->k.array.ranges = memdup(op->k.array.ranges, memsz);
- if (!newop->k.array.ranges) {
- pr_debug("Failed to alloc indices for map\n");
- free(newop);
- return NULL;
- }
- }
-
return newop;
}
@@ -1456,40 +1426,6 @@ struct bpf_obj_config__map_func bpf_obj_config__map_funcs[] = {
{"event", bpf_map__config_event},
};
-static int
-config_map_indices_range_check(struct parse_events_term *term,
- struct bpf_map *map,
- const char *map_name)
-{
- struct parse_events_array *array = &term->array;
- unsigned int i;
-
- if (!array->nr_ranges)
- return 0;
- if (!array->ranges) {
- pr_debug("ERROR: map %s: array->nr_ranges is %d but range array is NULL\n",
- map_name, (int)array->nr_ranges);
- return -BPF_LOADER_ERRNO__INTERNAL;
- }
-
- if (!map) {
- pr_debug("Map '%s' is invalid\n", map_name);
- return -BPF_LOADER_ERRNO__INTERNAL;
- }
-
- for (i = 0; i < array->nr_ranges; i++) {
- unsigned int start = array->ranges[i].start;
- size_t length = array->ranges[i].length;
- unsigned int idx = start + length - 1;
-
- if (idx >= bpf_map__max_entries(map)) {
- pr_debug("ERROR: index %d too large\n", idx);
- return -BPF_LOADER_ERRNO__OBJCONF_MAP_IDX2BIG;
- }
- }
- return 0;
-}
-
static int
bpf__obj_config_map(struct bpf_object *obj,
struct parse_events_term *term,
@@ -1525,12 +1461,6 @@ bpf__obj_config_map(struct bpf_object *obj,
goto out;
}
- *key_scan_pos += strlen(map_opt);
- err = config_map_indices_range_check(term, map, map_name);
- if (err)
- goto out;
- *key_scan_pos -= strlen(map_opt);
-
for (i = 0; i < ARRAY_SIZE(bpf_obj_config__map_funcs); i++) {
struct bpf_obj_config__map_func *func =
&bpf_obj_config__map_funcs[i];
@@ -1579,7 +1509,6 @@ typedef int (*map_config_func_t)(const char *name, int map_fd,
const struct bpf_map *map,
struct bpf_map_op *op,
void *pkey, void *arg);
-
static int
foreach_key_array_all(map_config_func_t func,
void *arg, const char *name,
@@ -1600,32 +1529,6 @@ foreach_key_array_all(map_config_func_t func,
return 0;
}
-static int
-foreach_key_array_ranges(map_config_func_t func, void *arg,
- const char *name, int map_fd,
- const struct bpf_map *map,
- struct bpf_map_op *op)
-{
- unsigned int i, j;
- int err;
-
- for (i = 0; i < op->k.array.nr_ranges; i++) {
- unsigned int start = op->k.array.ranges[i].start;
- size_t length = op->k.array.ranges[i].length;
-
- for (j = 0; j < length; j++) {
- unsigned int idx = start + j;
-
- err = func(name, map_fd, map, op, &idx, arg);
- if (err) {
- pr_debug("ERROR: failed to insert value to %s[%u]\n",
- name, idx);
- return err;
- }
- }
- }
- return 0;
-}
static int
bpf_map_config_foreach_key(struct bpf_map *map,
@@ -1666,10 +1569,6 @@ bpf_map_config_foreach_key(struct bpf_map *map,
err = foreach_key_array_all(func, arg, name,
map_fd, map, op);
break;
- case BPF_MAP_KEY_RANGES:
- err = foreach_key_array_ranges(func, arg, name,
- map_fd, map, op);
- break;
default:
pr_debug("ERROR: keytype for map '%s' invalid\n",
name);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 0e2004511cf5..70841b0febf3 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2717,9 +2717,6 @@ int parse_events_term__clone(struct parse_events_term **new,
void parse_events_term__delete(struct parse_events_term *term)
{
- if (term->array.nr_ranges)
- zfree(&term->array.ranges);
-
if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
zfree(&term->val.str);
@@ -2770,11 +2767,6 @@ void parse_events_terms__delete(struct list_head *terms)
free(terms);
}
-void parse_events__clear_array(struct parse_events_array *a)
-{
- zfree(&a->ranges);
-}
-
void parse_events_evlist_error(struct parse_events_state *parse_state,
int idx, const char *str)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index e59b33805886..b77ff619a623 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -81,17 +81,8 @@ enum {
__PARSE_EVENTS__TERM_TYPE_NR,
};
-struct parse_events_array {
- size_t nr_ranges;
- struct {
- unsigned int start;
- size_t length;
- } *ranges;
-};
-
struct parse_events_term {
char *config;
- struct parse_events_array array;
union {
char *str;
u64 num;
@@ -162,7 +153,6 @@ int parse_events_term__clone(struct parse_events_term **new,
void parse_events_term__delete(struct parse_events_term *term);
void parse_events_terms__delete(struct list_head *terms);
void parse_events_terms__purge(struct list_head *terms);
-void parse_events__clear_array(struct parse_events_array *a);
int parse_events__modifier_event(struct list_head *list, char *str, bool add);
int parse_events__modifier_group(struct list_head *list, char *event_mod);
int parse_events_name(struct list_head *list, const char *name);
--
2.41.0.487.g6d72f3e995-goog
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