netdev - [PATCH iproute2-next v2 4/8] dcb: app: modify dcb_app_parse_mapping

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Date: Thu, 25 May 2023 20:10:24 +0200
From: Daniel Machon <daniel.machon@...rochip.com>
To: <netdev@...r.kernel.org>
CC: <dsahern@...nel.org>, <stephen@...workplumber.org>, <petrm@...dia.com>,
	<UNGLinuxDriver@...rochip.com>, <daniel.machon@...rochip.com>
Subject: [PATCH iproute2-next v2 4/8] dcb: app: modify
 dcb_app_parse_mapping_cb for dcb-rewr reuse

When parsing APP table entries, priority and protocol is assigned from
value and key, respectively. Rewrite requires it opposite.

Adapt the existing dcb_app_parse_mapping_cb for this, by using callbacks
for pushing app or rewr entries to the table.

Signed-off-by: Daniel Machon <daniel.machon@...rochip.com>
---
 dcb/dcb.h     | 12 ++++++++++++
 dcb/dcb_app.c | 23 ++++++++++++-----------
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/dcb/dcb.h b/dcb/dcb.h
index 84ce95d5c1b2..b3bc30cd02c5 100644
--- a/dcb/dcb.h
+++ b/dcb/dcb.h
@@ -62,7 +62,16 @@ struct dcb_app_table {
 	int attr;
 };
 
+struct dcb_app_parse_mapping {
+	__u8 selector;
+	struct dcb_app_table *tab;
+	int (*push)(struct dcb_app_table *tab,
+		    __u8 selector, __u32 key, __u64 value);
+	int err;
+};
+
 int dcb_cmd_app(struct dcb *dcb, int argc, char **argv);
+
 enum ieee_attrs_app dcb_app_attr_type_get(__u8 selector);
 bool dcb_app_attr_type_validate(enum ieee_attrs_app type);
 bool dcb_app_selector_validate(enum ieee_attrs_app type, __u8 selector);
@@ -70,11 +79,14 @@ bool dcb_app_selector_validate(enum ieee_attrs_app type, __u8 selector);
 bool dcb_app_pid_eq(const struct dcb_app *aa, const struct dcb_app *ab);
 bool dcb_app_prio_eq(const struct dcb_app *aa, const struct dcb_app *ab);
 
+int dcb_app_table_push(struct dcb_app_table *tab, struct dcb_app *app);
 void dcb_app_table_remove_replaced(struct dcb_app_table *a,
 				   const struct dcb_app_table *b,
 				   bool (*key_eq)(const struct dcb_app *aa,
 						  const struct dcb_app *ab));
 
+void dcb_app_parse_mapping_cb(__u32 key, __u64 value, void *data);
+
 /* dcb_apptrust.c */
 
 int dcb_cmd_apptrust(struct dcb *dcb, int argc, char **argv);
diff --git a/dcb/dcb_app.c b/dcb/dcb_app.c
index 4cd175a0623b..97cba658aa6b 100644
--- a/dcb/dcb_app.c
+++ b/dcb/dcb_app.c
@@ -105,7 +105,7 @@ static void dcb_app_table_fini(struct dcb_app_table *tab)
 	free(tab->apps);
 }
 
-static int dcb_app_table_push(struct dcb_app_table *tab, struct dcb_app *app)
+int dcb_app_table_push(struct dcb_app_table *tab, struct dcb_app *app)
 {
 	struct dcb_app *apps = realloc(tab->apps, (tab->n_apps + 1) * sizeof(*tab->apps));
 
@@ -231,25 +231,25 @@ static void dcb_app_table_sort(struct dcb_app_table *tab)
 	qsort(tab->apps, tab->n_apps, sizeof(*tab->apps), dcb_app_cmp_cb);
 }
 
-struct dcb_app_parse_mapping {
-	__u8 selector;
-	struct dcb_app_table *tab;
-	int err;
-};
-
-static void dcb_app_parse_mapping_cb(__u32 key, __u64 value, void *data)
+static int dcb_app_push(struct dcb_app_table *tab,
+			__u8 selector, __u32 key, __u64 value)
 {
-	struct dcb_app_parse_mapping *pm = data;
 	struct dcb_app app = {
-		.selector = pm->selector,
+		.selector = selector,
 		.priority = value,
 		.protocol = key,
 	};
+	return dcb_app_table_push(tab, &app);
+}
+
+void dcb_app_parse_mapping_cb(__u32 key, __u64 value, void *data)
+{
+	struct dcb_app_parse_mapping *pm = data;
 
 	if (pm->err)
 		return;
 
-	pm->err = dcb_app_table_push(pm->tab, &app);
+	pm->err = pm->push(pm->tab, pm->selector, key, value);
 }
 
 static int dcb_app_parse_mapping_ethtype_prio(__u32 key, char *value, void *data)
@@ -663,6 +663,7 @@ static int dcb_cmd_app_parse_add_del(struct dcb *dcb, const char *dev,
 {
 	struct dcb_app_parse_mapping pm = {
 		.tab = tab,
+		.push = dcb_app_push,
 	};
 	int ret;
 

-- 
2.34.1