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Subject[PATCH 09/30] perf config: Do not die when parsing u64 or int config values
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

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>
---
tools/perf/builtin-diff.c | 5 ++++-
tools/perf/builtin-report.c | 7 +++----
tools/perf/util/config.c | 34 ++++++++++++++++++++++------------
tools/perf/util/config.h | 4 ++--
tools/perf/util/data-convert-bt.c | 6 ++----
tools/perf/util/help-unknown-cmd.c | 2 +-
6 files changed, 34 insertions(+), 24 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index eec5df80f5a3..0cd4cf6a344b 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1302,7 +1302,10 @@ static int diff__config(const char *var, const char *value,
void *cb __maybe_unused)
{
if (!strcmp(var, "diff.order")) {
- sort_compute = perf_config_int(var, value);
+ int ret;
+ if (perf_config_int(&ret, var, value) < 0)
+ return -1;
+ sort_compute = ret;
return 0;
}
if (!strcmp(var, "diff.compute")) {
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 22478ff2b706..1174a426d090 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -94,10 +94,9 @@ static int report__config(const char *var, const char *value, void *cb)
symbol_conf.cumulate_callchain = perf_config_bool(var, value);
return 0;
}
- if (!strcmp(var, "report.queue-size")) {
- rep->queue_size = perf_config_u64(var, value);
- return 0;
- }
+ if (!strcmp(var, "report.queue-size"))
+ return perf_config_u64(&rep->queue_size, var, value);
+
if (!strcmp(var, "report.sort_order")) {
default_sort_order = strdup(value);
return 0;
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;
}
--
2.9.4
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