[PATCH 14/46] perf annotate: Replace symbol__alloc_hists() with symbol__hists()

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <a...@redhat.com>

Its a bit shorter, so ditch the old symbol__alloc_hists() function.

Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Wang Nan <wangn...@huawei.com>
Link: https://lkml.kernel.org/n/tip-m7tienxk7dijh5ln62yln...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/builtin-top.c          |  8 +-------
 tools/perf/ui/browsers/annotate.c |  2 +-
 tools/perf/util/annotate.c        | 21 ++-------------------
 tools/perf/util/annotate.h        |  2 +-
 4 files changed, 5 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index bc71e899096d..04fe04885e99 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -123,14 +123,9 @@ static int perf_top__parse_source(struct perf_top *top, 
struct hist_entry *he)
        }
 
        notes = symbol__annotation(sym);
-       if (notes->src != NULL) {
-               pthread_mutex_lock(&notes->lock);
-               goto out_assign;
-       }
-
        pthread_mutex_lock(&notes->lock);
 
-       if (symbol__alloc_hist(sym) < 0) {
+       if (!symbol__hists(sym, top->evlist->nr_entries)) {
                pthread_mutex_unlock(&notes->lock);
                pr_err("Not enough memory for annotating '%s' symbol!\n",
                       sym->name);
@@ -140,7 +135,6 @@ static int perf_top__parse_source(struct perf_top *top, 
struct hist_entry *he)
 
        err = symbol__annotate(sym, map, evsel, 0, NULL);
        if (err == 0) {
-out_assign:
                top->sym_filter_entry = he;
        } else {
                char msg[BUFSIZ];
diff --git a/tools/perf/ui/browsers/annotate.c 
b/tools/perf/ui/browsers/annotate.c
index 8be40fa903aa..3bfe17e176fe 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -410,7 +410,7 @@ static bool annotate_browser__callq(struct annotate_browser 
*browser,
        notes = symbol__annotation(dl->ops.target.sym);
        pthread_mutex_lock(&notes->lock);
 
-       if (notes->src == NULL && symbol__alloc_hist(dl->ops.target.sym) < 0) {
+       if (!symbol__hists(dl->ops.target.sym, evsel->evlist->nr_entries)) {
                pthread_mutex_unlock(&notes->lock);
                ui__warning("Not enough memory for annotating '%s' symbol!\n",
                            dl->ops.target.sym->name);
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7c194b04a2da..bcd5d3e17b85 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -689,7 +689,7 @@ static struct annotated_source *annotated_source__new(void)
        return src;
 }
 
-static void annotated_source__delete(struct annotated_source *src)
+static __maybe_unused void annotated_source__delete(struct annotated_source 
*src)
 {
        if (src == NULL)
                return;
@@ -729,23 +729,6 @@ static int annotated_source__alloc_histograms(struct 
annotated_source *src,
        return src->histograms ? 0 : -1;
 }
 
-int symbol__alloc_hist(struct symbol *sym)
-{
-       size_t size = symbol__size(sym);
-       struct annotation *notes = symbol__annotation(sym);
-
-       notes->src = annotated_source__new();
-       if (notes->src == NULL)
-               return -1;
-
-       if (annotated_source__alloc_histograms(notes->src, size, 
symbol_conf.nr_events) < 0) {
-               annotated_source__delete(notes->src);
-               notes->src = NULL;
-               return -1;
-       }
-       return 0;
-}
-
 /* The cycles histogram is lazily allocated. */
 static int symbol__alloc_hist_cycles(struct symbol *sym)
 {
@@ -868,7 +851,7 @@ static struct cyc_hist *symbol__cycles_hist(struct symbol 
*sym)
        return notes->src->cycles_hist;
 }
 
-static struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
+struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
 {
        struct annotation *notes = symbol__annotation(sym);
 
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 2a73f9084930..7ad503fbff74 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -292,7 +292,7 @@ int addr_map_symbol__account_cycles(struct addr_map_symbol 
*ams,
 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample 
*sample,
                                 struct perf_evsel *evsel, u64 addr);
 
-int symbol__alloc_hist(struct symbol *sym);
+struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists);
 void symbol__annotate_zero_histograms(struct symbol *sym);
 
 int symbol__annotate(struct symbol *sym, struct map *map,
-- 
2.14.3