linux-kernel - [PATCH 02/12] perf top: Remove old kernel-only symbol filter

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Date:   Thu,  8 Sep 2016 17:46:11 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Wang Nan <wangnan0@...wei.com>
Subject: [PATCH 02/12] perf top: Remove old kernel-only symbol filter

From: Arnaldo Carvalho de Melo <acme@...hat.com>

Not needed, we already have code to prune aliases.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-1ysyce7qjgui93gi1efbjwhf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-top.c | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 6f48df14e277..400785702566 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -657,31 +657,6 @@ repeat:
 	return NULL;
 }
 
-static int symbol_filter(struct map *map, struct symbol *sym)
-{
-	const char *name = sym->name;
-
-	if (!__map__is_kernel(map))
-		return 0;
-	/*
-	 * ppc64 uses function descriptors and appends a '.' to the
-	 * start of every instruction address. Remove it.
-	 */
-	if (name[0] == '.')
-		name++;
-
-	if (!strcmp(name, "_text") ||
-	    !strcmp(name, "_etext") ||
-	    !strcmp(name, "_sinittext") ||
-	    !strncmp("init_module", name, 11) ||
-	    !strncmp("cleanup_module", name, 14) ||
-	    strstr(name, "_text_start") ||
-	    strstr(name, "_text_end"))
-		return 1;
-
-	return 0;
-}
-
 static int hist_iter__top_callback(struct hist_entry_iter *iter,
 				   struct addr_location *al, bool single,
 				   void *arg)
@@ -946,8 +921,6 @@ static int __cmd_top(struct perf_top *top)
 	if (top->session == NULL)
 		return -1;
 
-	machines__set_symbol_filter(&top->session->machines, symbol_filter);
-
 	if (!objdump_path) {
 		ret = perf_env__lookup_objdump(&top->session->header.env);
 		if (ret)
-- 
2.7.4