perf top: Remove superfluous name_len field

From the sym_entry struct, struct symbol already has this field.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-top.c

@@ -787,9 +787,6 @@ static int symbol_filter(struct map *map, struct symbol *sym)
 		}
 	}
 
-	if (!syme->skip)
-		syme->name_len = strlen(sym->name);
-
 	return 0;
 }
 

tools/perf/util/top.c

@@ -200,6 +200,7 @@ void perf_top__find_widths(struct perf_top *top, struct rb_root *root,
 
 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 		struct sym_entry *syme = rb_entry(nd, struct sym_entry, rb_node);
+		struct symbol *sym = sym_entry__symbol(syme);
 
 		if (++printed > top->print_entries ||
 		    (int)syme->snap_count < top->count_filter)
@@ -211,7 +212,7 @@ void perf_top__find_widths(struct perf_top *top, struct rb_root *root,
 		if (syme->map->dso->short_name_len > *dso_short_width)
 			*dso_short_width = syme->map->dso->short_name_len;
 
-		if (syme->name_len > *sym_width)
-			*sym_width = syme->name_len;
+		if (sym->namelen > *sym_width)
+			*sym_width = sym->namelen;
 	}
 }

tools/perf/util/top.h

@@ -31,7 +31,6 @@ struct sym_entry {
 	unsigned long		snap_count;
 	double			weight;
 	int			skip;
-	u16			name_len;
 	u8			origin;
 	struct map		*map;
 	struct sym_entry_source	*src;