perf tools: Shorten sample symbol resolving function signature

Since two of the parameters come from the same 'struct
addr_location', rename machine__resolve_bstack() to sample__resolve_bstack()
and pass the that addr_location instead.

This is also for consistency with the same change that resulted in the
sample__resolve_mem() function.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-99ecqt8jiyyksiyx3se7l5ia@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-report.c

@@ -140,8 +140,7 @@ static int report__add_branch_hist_entry(struct perf_tool *tool, struct addr_loc
 	if (err)
 		return err;
 
-	bi = machine__resolve_bstack(al->machine, al->thread,
-				     sample->branch_stack);
+	bi = sample__resolve_bstack(sample, al);
 	if (!bi)
 		return -ENOMEM;
 

tools/perf/util/hist.c

@@ -290,7 +290,7 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template)
 		if (he->branch_info) {
 			/*
 			 * This branch info is (a part of) allocated from
-			 * machine__resolve_bstack() and will be freed after
+			 * sample__resolve_bstack() and will be freed after
 			 * adding new entries.  So we need to save a copy.
 			 */
 			he->branch_info = malloc(sizeof(*he->branch_info));

tools/perf/util/machine.c

@@ -1254,20 +1254,19 @@ struct mem_info *sample__resolve_mem(struct perf_sample *sample,
 	return mi;
 }
 
-struct branch_info *machine__resolve_bstack(struct machine *machine,
-					    struct thread *thr,
-					    struct branch_stack *bs)
+struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
+					   struct addr_location *al)
 {
-	struct branch_info *bi;
 	unsigned int i;
+	const struct branch_stack *bs = sample->branch_stack;
+	struct branch_info *bi = calloc(bs->nr, sizeof(struct branch_info));
 
-	bi = calloc(bs->nr, sizeof(struct branch_info));
 	if (!bi)
 		return NULL;
 
 	for (i = 0; i < bs->nr; i++) {
-		ip__resolve_ams(machine, thr, &bi[i].to, bs->entries[i].to);
-		ip__resolve_ams(machine, thr, &bi[i].from, bs->entries[i].from);
+		ip__resolve_ams(al->machine, al->thread, &bi[i].to, bs->entries[i].to);
+		ip__resolve_ams(al->machine, al->thread, &bi[i].from, bs->entries[i].from);
 		bi[i].flags = bs->entries[i].flags;
 	}
 	return bi;

tools/perf/util/machine.h

@@ -91,9 +91,8 @@ void machine__delete_dead_threads(struct machine *machine);
 void machine__delete_threads(struct machine *machine);
 void machine__delete(struct machine *machine);
 
-struct branch_info *machine__resolve_bstack(struct machine *machine,
-					    struct thread *thread,
-					    struct branch_stack *bs);
+struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
+					   struct addr_location *al);
 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
 				     struct addr_location *al);
 int machine__resolve_callchain(struct machine *machine,