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Message-Id: <20180821174857.208631-1-mahesh@bandewar.net>
Date: Tue, 21 Aug 2018 10:48:57 -0700
From: Mahesh Bandewar <mahesh@...dewar.net>
To: Stephen Hemminger <stephen@...workplumber.org>
Cc: netdev <netdev@...r.kernel.org>,
Mahesh Bandewar <maheshb@...gle.com>
Subject: [PATCHv2 iproute2 3/3] iproute: make clang happy with iproute2 package
From: Mahesh Bandewar <maheshb@...gle.com>
These are primarily fixes for "string is not string literal" warnings
/ errors (with -Werror -Wformat-nonliteral). This should be a no-op
change. I had to replace couple of print helper functions with the
code they call as it was becoming harder to eliminate these warnings,
however these helpers were used only at couple of places, so no
major change as such.
Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
---
include/json_writer.h | 3 +--
ip/iplink_can.c | 19 ++++++++++++-------
lib/color.c | 1 +
lib/json_print.c | 1 +
lib/json_writer.c | 15 +--------------
misc/ss.c | 3 ++-
tc/m_ematch.c | 1 +
tc/m_ematch.h | 1 +
8 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/include/json_writer.h b/include/json_writer.h
index 9ab88e1dbdd9..0c8831c1136d 100644
--- a/include/json_writer.h
+++ b/include/json_writer.h
@@ -29,6 +29,7 @@ void jsonw_pretty(json_writer_t *self, bool on);
void jsonw_name(json_writer_t *self, const char *name);
/* Add value */
+__attribute__((format(printf, 2, 3)))
void jsonw_printf(json_writer_t *self, const char *fmt, ...);
void jsonw_string(json_writer_t *self, const char *value);
void jsonw_bool(json_writer_t *self, bool value);
@@ -59,8 +60,6 @@ void jsonw_luint_field(json_writer_t *self, const char *prop,
unsigned long int num);
void jsonw_lluint_field(json_writer_t *self, const char *prop,
unsigned long long int num);
-void jsonw_float_field_fmt(json_writer_t *self, const char *prop,
- const char *fmt, double val);
/* Collections */
void jsonw_start_object(json_writer_t *self);
diff --git a/ip/iplink_can.c b/ip/iplink_can.c
index 587413da15c4..c0deeb1f1fcf 100644
--- a/ip/iplink_can.c
+++ b/ip/iplink_can.c
@@ -316,11 +316,14 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
struct can_bittiming *bt = RTA_DATA(tb[IFLA_CAN_BITTIMING]);
if (is_json_context()) {
+ json_writer_t *jw;
+
open_json_object("bittiming");
print_int(PRINT_ANY, "bitrate", NULL, bt->bitrate);
- jsonw_float_field_fmt(get_json_writer(),
- "sample_point", "%.3f",
- (float) bt->sample_point / 1000.);
+ jw = get_json_writer();
+ jsonw_name(jw, "sample_point");
+ jsonw_printf(jw, "%.3f",
+ (float) bt->sample_point / 1000);
print_int(PRINT_ANY, "tq", NULL, bt->tq);
print_int(PRINT_ANY, "prop_seg", NULL, bt->prop_seg);
print_int(PRINT_ANY, "phase_seg1",
@@ -415,12 +418,14 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
if (is_json_context()) {
+ json_writer_t *jw;
+
open_json_object("data_bittiming");
print_int(PRINT_JSON, "bitrate", NULL, dbt->bitrate);
- jsonw_float_field_fmt(get_json_writer(),
- "sample_point",
- "%.3f",
- (float) dbt->sample_point / 1000.);
+ jw = get_json_writer();
+ jsonw_name(jw, "sample_point");
+ jsonw_printf(jw, "%.3f",
+ (float) dbt->sample_point / 1000.);
print_int(PRINT_JSON, "tq", NULL, dbt->tq);
print_int(PRINT_JSON, "prop_seg", NULL, dbt->prop_seg);
print_int(PRINT_JSON, "phase_seg1",
diff --git a/lib/color.c b/lib/color.c
index eaf69e74d673..e5406294dfc4 100644
--- a/lib/color.c
+++ b/lib/color.c
@@ -132,6 +132,7 @@ void set_color_palette(void)
is_dark_bg = 1;
}
+__attribute__((format(printf, 3, 4)))
int color_fprintf(FILE *fp, enum color_attr attr, const char *fmt, ...)
{
int ret = 0;
diff --git a/lib/json_print.c b/lib/json_print.c
index 5dc41bfabfd4..77902824a738 100644
--- a/lib/json_print.c
+++ b/lib/json_print.c
@@ -100,6 +100,7 @@ void close_json_array(enum output_type type, const char *str)
* functions handling different types
*/
#define _PRINT_FUNC(type_name, type) \
+ __attribute__((format(printf, 4, 0))) \
void print_color_##type_name(enum output_type t, \
enum color_attr color, \
const char *key, \
diff --git a/lib/json_writer.c b/lib/json_writer.c
index aa9ce1c65e51..68890b34ee92 100644
--- a/lib/json_writer.c
+++ b/lib/json_writer.c
@@ -152,6 +152,7 @@ void jsonw_name(json_writer_t *self, const char *name)
putc(' ', self->out);
}
+__attribute__((format(printf, 2, 3)))
void jsonw_printf(json_writer_t *self, const char *fmt, ...)
{
va_list ap;
@@ -205,11 +206,6 @@ void jsonw_null(json_writer_t *self)
jsonw_printf(self, "null");
}
-void jsonw_float_fmt(json_writer_t *self, const char *fmt, double num)
-{
- jsonw_printf(self, fmt, num);
-}
-
void jsonw_float(json_writer_t *self, double num)
{
jsonw_printf(self, "%g", num);
@@ -274,15 +270,6 @@ void jsonw_float_field(json_writer_t *self, const char *prop, double val)
jsonw_float(self, val);
}
-void jsonw_float_field_fmt(json_writer_t *self,
- const char *prop,
- const char *fmt,
- double val)
-{
- jsonw_name(self, prop);
- jsonw_float_fmt(self, fmt, val);
-}
-
void jsonw_uint_field(json_writer_t *self, const char *prop, unsigned int num)
{
jsonw_name(self, prop);
diff --git a/misc/ss.c b/misc/ss.c
index 41e7762bb61f..93b1baf5dc40 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -976,6 +976,7 @@ static int buf_update(int len)
}
/* Append content to buffer as part of the current field */
+__attribute__((format(printf, 1, 2)))
static void out(const char *fmt, ...)
{
struct column *f = current_field;
@@ -1093,7 +1094,7 @@ static void print_header(void)
{
while (!field_is_last(current_field)) {
if (!current_field->disabled)
- out(current_field->header);
+ out("%s", current_field->header);
field_next();
}
}
diff --git a/tc/m_ematch.c b/tc/m_ematch.c
index ace4b3dd738b..a524b520b276 100644
--- a/tc/m_ematch.c
+++ b/tc/m_ematch.c
@@ -277,6 +277,7 @@ static int flatten_tree(struct ematch *head, struct ematch *tree)
return count;
}
+__attribute__((format(printf, 5, 6)))
int em_parse_error(int err, struct bstr *args, struct bstr *carg,
struct ematch_util *e, char *fmt, ...)
{
diff --git a/tc/m_ematch.h b/tc/m_ematch.h
index 80b02cfad6cc..95515a074624 100644
--- a/tc/m_ematch.h
+++ b/tc/m_ematch.h
@@ -107,6 +107,7 @@ static inline int parse_layer(struct bstr *b)
return INT_MAX;
}
+__attribute__((format(printf, 5, 6)))
int em_parse_error(int err, struct bstr *args, struct bstr *carg,
struct ematch_util *, char *fmt, ...);
int print_ematch(FILE *, const struct rtattr *);
--
2.18.0.865.gffc8e1a3cd6-goog
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