[PATCH iproute2-next v3 05/12] dcb: app: modify dcb_app_print_filtered() for dcb-rewr reuse

[Daniel Machon <daniel.machon@microchip.com>]

Where dcb-app requires protocol to be the printed key, dcb-rewr requires
it to be the priority. Adapt existing dcb-app print functions for this.

dcb_app_print_filtered() has been modified, to take two callbacks; one
for printing the entire string (pid and prio), and one for the pid type
(dec, hex, dscp, pcp). This saves us for making one dedicated function
for each pid type for both app and rewr.

Also, printing the colon is now expected to be handled by the
print_pid_prio() callback.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
---
 dcb/dcb_app.c | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/dcb/dcb_app.c b/dcb/dcb_app.c
index a8f3424db9f7..aa248cc40bdf 100644
--- a/dcb/dcb_app.c
+++ b/dcb/dcb_app.c
@@ -434,7 +434,9 @@ static int dcb_app_print_pid_pcp(__u16 protocol)
 
 static void dcb_app_print_filtered(const struct dcb_app_table *tab,
 				   bool (*filter)(const struct dcb_app *),
-				   int (*print_key)(__u16 protocol),
+				   void (*print_pid_prio)(int (*print_pid)(__u16),
+							  const struct dcb_app *),
+				   int (*print_pid)(__u16 protocol),
 				   const char *json_name,
 				   const char *fp_name)
 {
@@ -453,8 +455,8 @@ static void dcb_app_print_filtered(const struct dcb_app_table *tab,
 		}
 
 		open_json_array(PRINT_JSON, NULL);
-		print_key(app->protocol);
-		print_uint(PRINT_ANY, NULL, ":%u ", app->priority);
+		print_pid_prio(print_pid, app);
+		print_string(PRINT_ANY, NULL, "%s", " ");
 		close_json_array(PRINT_JSON, NULL);
 	}
 
@@ -464,9 +466,17 @@ static void dcb_app_print_filtered(const struct dcb_app_table *tab,
 	}
 }
 
+static void dcb_app_print_pid_prio(int (*print_pid)(__u16 protocol),
+				   const struct dcb_app *app)
+{
+	print_pid(app->protocol);
+	print_uint(PRINT_ANY, NULL, ":%u", app->priority);
+}
+
 static void dcb_app_print_ethtype_prio(const struct dcb_app_table *tab)
 {
-	dcb_app_print_filtered(tab, dcb_app_is_ethtype,  dcb_app_print_pid_hex,
+	dcb_app_print_filtered(tab, dcb_app_is_ethtype,
+			       dcb_app_print_pid_prio, dcb_app_print_pid_hex,
 			       "ethtype_prio", "ethtype-prio");
 }
 
@@ -474,8 +484,9 @@ static void dcb_app_print_pcp_prio(const struct dcb *dcb,
 				   const struct dcb_app_table *tab)
 {
 	dcb_app_print_filtered(tab, dcb_app_is_pcp,
-			       dcb->numeric ? dcb_app_print_pid_dec
-					    : dcb_app_print_pid_pcp,
+			       dcb_app_print_pid_prio,
+			       dcb->numeric ? dcb_app_print_pid_dec :
+					      dcb_app_print_pid_pcp,
 			       "pcp_prio", "pcp-prio");
 }
 
@@ -483,26 +494,30 @@ static void dcb_app_print_dscp_prio(const struct dcb *dcb,
 				    const struct dcb_app_table *tab)
 {
 	dcb_app_print_filtered(tab, dcb_app_is_dscp,
-			       dcb->numeric ? dcb_app_print_pid_dec
-					    : dcb_app_print_pid_dscp,
+			       dcb_app_print_pid_prio,
+			       dcb->numeric ? dcb_app_print_pid_dec :
+					      dcb_app_print_pid_dscp,
 			       "dscp_prio", "dscp-prio");
 }
 
 static void dcb_app_print_stream_port_prio(const struct dcb_app_table *tab)
 {
-	dcb_app_print_filtered(tab, dcb_app_is_stream_port, dcb_app_print_pid_dec,
+	dcb_app_print_filtered(tab, dcb_app_is_stream_port,
+			       dcb_app_print_pid_prio, dcb_app_print_pid_dec,
 			       "stream_port_prio", "stream-port-prio");
 }
 
 static void dcb_app_print_dgram_port_prio(const struct dcb_app_table *tab)
 {
-	dcb_app_print_filtered(tab, dcb_app_is_dgram_port, dcb_app_print_pid_dec,
+	dcb_app_print_filtered(tab, dcb_app_is_dgram_port,
+			       dcb_app_print_pid_prio, dcb_app_print_pid_dec,
 			       "dgram_port_prio", "dgram-port-prio");
 }
 
 static void dcb_app_print_port_prio(const struct dcb_app_table *tab)
 {
-	dcb_app_print_filtered(tab, dcb_app_is_port, dcb_app_print_pid_dec,
+	dcb_app_print_filtered(tab, dcb_app_is_port,
+			       dcb_app_print_pid_prio, dcb_app_print_pid_dec,
 			       "port_prio", "port-prio");
 }
 

-- 
2.34.1