perf config: Do not die when parsing u64 or int config values

Just warn the user and ignore those values.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-tbf60nj3ierm6hrkhpothymx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 27 insertions, 19 deletions

diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 586afeab2352..31a7dea248d0 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -335,32 +335,42 @@ static int perf_parse_long(const char *value, long *ret)
 	return 0;
 }
 
-static void die_bad_config(const char *name)
+static void bad_config(const char *name)
 {
 	if (config_file_name)
-		die("bad config value for '%s' in %s", name, config_file_name);
-	die("bad config value for '%s'", name);
+		pr_warning("bad config value for '%s' in %s, ignoring...\n", name, config_file_name);
+	else
+		pr_warning("bad config value for '%s', ignoring...\n", name);
 }
 
-u64 perf_config_u64(const char *name, const char *value)
+int perf_config_u64(u64 *dest, const char *name, const char *value)
 {
 	long long ret = 0;
 
-	if (!perf_parse_llong(value, &ret))
-		die_bad_config(name);
-	return (u64) ret;
+	if (!perf_parse_llong(value, &ret)) {
+		bad_config(name);
+		return -1;
+	}
+
+	*dest = ret;
+	return 0;
 }
 
-int perf_config_int(const char *name, const char *value)
+int perf_config_int(int *dest, const char *name, const char *value)
 {
 	long ret = 0;
-	if (!perf_parse_long(value, &ret))
-		die_bad_config(name);
-	return ret;
+	if (!perf_parse_long(value, &ret)) {
+		bad_config(name);
+		return -1;
+	}
+	*dest = ret;
+	return 0;
 }
 
 static int perf_config_bool_or_int(const char *name, const char *value, int *is_bool)
 {
+	int ret;
+
 	*is_bool = 1;
 	if (!value)
 		return 1;
@@ -371,7 +381,7 @@ static int perf_config_bool_or_int(const char *name, const char *value, int *is_
 	if (!strcasecmp(value, "false") || !strcasecmp(value, "no") || !strcasecmp(value, "off"))
 		return 0;
 	*is_bool = 0;
-	return perf_config_int(name, value);
+	return perf_config_int(&ret, name, value) < 0 ? -1 : ret;
 }
 
 int perf_config_bool(const char *name, const char *value)
diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index 1a59a6b43f8b..b6bb11f3f165 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -27,8 +27,8 @@ extern const char *config_exclusive_filename;
 typedef int (*config_fn_t)(const char *, const char *, void *);
 int perf_default_config(const char *, const char *, void *);
 int perf_config(config_fn_t fn, void *);
-int perf_config_int(const char *, const char *);
-u64 perf_config_u64(const char *, const char *);
+int perf_config_int(int *dest, const char *, const char *);
+int perf_config_u64(u64 *dest, const char *, const char *);
 int perf_config_bool(const char *, const char *);
 int config_error_nonbool(const char *);
 const char *perf_etc_perfconfig(void);
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 89d50318833d..3149b70799fd 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -1444,10 +1444,8 @@ static int convert__config(const char *var, const char *value, void *cb)
 {
 	struct convert *c = cb;
 
-	if (!strcmp(var, "convert.queue-size")) {
-		c->queue_size = perf_config_u64(var, value);
-		return 0;
-	}
+	if (!strcmp(var, "convert.queue-size"))
+		return perf_config_u64(&c->queue_size, var, value);
 
 	return 0;
 }
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c
index 1c88ad6425b8..15b95300d7f3 100644
--- a/tools/perf/util/help-unknown-cmd.c
+++ b/tools/perf/util/help-unknown-cmd.c
@@ -12,7 +12,7 @@ static int perf_unknown_cmd_config(const char *var, const char *value,
 				   void *cb __maybe_unused)
 {
 	if (!strcmp(var, "help.autocorrect"))
-		autocorrect = perf_config_int(var,value);
+		return perf_config_int(&autocorrect, var,value);
 
 	return 0;
 }