bridge: Deduplicate print_range()

The two implementations are now identical so keep only one instance and
move it to json_print.c where there are already a few other specialized
printing functions.

The string that's formatted in the "end" buffer is only needed when
outputting a range so move the snprintf() call within the condition.

The second argument's purpose is better conveyed by calling it "end" rather
than "id" so rename it.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Tested-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

4 files changed, 17 insertions, 28 deletions

diff --git a/bridge/vlan.c b/bridge/vlan.c
index 7a175b047..05e6a6206 100644
--- a/bridge/vlan.c
+++ b/bridge/vlan.c
@@ -590,20 +590,6 @@ static void close_vlan_port(void)
 	close_json_object();
 }
 
-static unsigned int print_range(const char *name, __u32 start, __u32 id)
-{
-	char end[64];
-	int width;
-
-	snprintf(end, sizeof(end), "%sEnd", name);
-
-	width = print_uint(PRINT_ANY, name, "%u", start);
-	if (start != id)
-		width += print_uint(PRINT_ANY, end, "-%u", id);
-
-	return width;
-}
-
 static void print_vlan_tunnel_info(struct rtattr *tb, int ifindex)
 {
 	struct rtattr *i, *list = tb;
diff --git a/bridge/vni.c b/bridge/vni.c
index 2c6d506a7..ffc3e1887 100644
--- a/bridge/vni.c
+++ b/bridge/vni.c
@@ -163,20 +163,6 @@ static void close_vni_port(void)
 	close_json_object();
 }
 
-static unsigned int print_range(const char *name, __u32 start, __u32 id)
-{
-	char end[64];
-	int width;
-
-	snprintf(end, sizeof(end), "%sEnd", name);
-
-	width = print_uint(PRINT_ANY, name, "%u", start);
-	if (start != id)
-		width += print_uint(PRINT_ANY, end, "-%u", id);
-
-	return width;
-}
-
 static void print_vnifilter_entry_stats(struct rtattr *stats_attr)
 {
 	struct rtattr *stb[VNIFILTER_ENTRY_STATS_MAX+1];
diff --git a/include/json_print.h b/include/json_print.h
index 0b1d84f78..daebcf5d2 100644
--- a/include/json_print.h
+++ b/include/json_print.h
@@ -97,6 +97,8 @@ static inline int print_rate(bool use_iec, enum output_type t,
 	return print_color_rate(use_iec, t, COLOR_NONE, key, fmt, rate);
 }
 
+unsigned int print_range(const char *name, __u32 start, __u32 end);
+
 int print_color_bool_opt(enum output_type type, enum color_attr color,
 			 const char *key, bool value, bool show);
 
diff --git a/lib/json_print.c b/lib/json_print.c
index 602de027c..7b3b6c3fa 100644
--- a/lib/json_print.c
+++ b/lib/json_print.c
@@ -374,3 +374,18 @@ int print_color_rate(bool use_iec, enum output_type type, enum color_attr color,
 	free(buf);
 	return rc;
 }
+
+unsigned int print_range(const char *name, __u32 start, __u32 end)
+{
+	int width;
+
+	width = print_uint(PRINT_ANY, name, "%u", start);
+	if (start != end) {
+		char buf[64];
+
+		snprintf(buf, sizeof(buf), "%sEnd", name);
+		width += print_uint(PRINT_ANY, buf, "-%u", end);
+	}
+
+	return width;
+}