net: Make table id type u32

A number of VRF patches used 'int' for table id. It should be u32 to be
consistent with the rest of the stack.

Fixes:
4e3c8992 ("net: Introduce VRF related flags and helpers")
15be405e ("net: Add inet_addr lookup by table")
30bbaa19 ("net: Fix up inet_addr_type checks")
021dd3b8 ("net: Add routes to the table associated with the device")
dc028da5 ("inet: Move VRF table lookup to inlined function")
f6d3c192 ("net: FIB tracepoints")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/route.h

@@ -188,7 +188,7 @@ void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk);
 void ip_rt_send_redirect(struct sk_buff *skb);
 
 unsigned int inet_addr_type(struct net *net, __be32 addr);
-unsigned int inet_addr_type_table(struct net *net, __be32 addr, int tb_id);
+unsigned int inet_addr_type_table(struct net *net, __be32 addr, u32 tb_id);
 unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,
 				__be32 addr);
 unsigned int inet_addr_type_dev_table(struct net *net,

include/net/vrf.h

@@ -66,9 +66,9 @@ static inline int vrf_master_ifindex(const struct net_device *dev)
 }
 
 /* called with rcu_read_lock */
-static inline int vrf_dev_table_rcu(const struct net_device *dev)
+static inline u32 vrf_dev_table_rcu(const struct net_device *dev)
 {
-	int tb_id = 0;
+	u32 tb_id = 0;
 
 	if (dev) {
 		struct net_vrf_dev *vrf_ptr;
@@ -80,9 +80,9 @@ static inline int vrf_dev_table_rcu(const struct net_device *dev)
 	return tb_id;
 }
 
-static inline int vrf_dev_table(const struct net_device *dev)
+static inline u32 vrf_dev_table(const struct net_device *dev)
 {
-	int tb_id;
+	u32 tb_id;
 
 	rcu_read_lock();
 	tb_id = vrf_dev_table_rcu(dev);
@@ -91,10 +91,10 @@ static inline int vrf_dev_table(const struct net_device *dev)
 	return tb_id;
 }
 
-static inline int vrf_dev_table_ifindex(struct net *net, int ifindex)
+static inline u32 vrf_dev_table_ifindex(struct net *net, int ifindex)
 {
 	struct net_device *dev;
-	int tb_id = 0;
+	u32 tb_id = 0;
 
 	if (!ifindex)
 		return 0;
@@ -111,9 +111,9 @@ static inline int vrf_dev_table_ifindex(struct net *net, int ifindex)
 }
 
 /* called with rtnl */
-static inline int vrf_dev_table_rtnl(const struct net_device *dev)
+static inline u32 vrf_dev_table_rtnl(const struct net_device *dev)
 {
-	int tb_id = 0;
+	u32 tb_id = 0;
 
 	if (dev) {
 		struct net_vrf_dev *vrf_ptr;
@@ -149,22 +149,22 @@ static inline int vrf_master_ifindex(const struct net_device *dev)
 	return 0;
 }
 
-static inline int vrf_dev_table_rcu(const struct net_device *dev)
+static inline u32 vrf_dev_table_rcu(const struct net_device *dev)
 {
 	return 0;
 }
 
-static inline int vrf_dev_table(const struct net_device *dev)
+static inline u32 vrf_dev_table(const struct net_device *dev)
 {
 	return 0;
 }
 
-static inline int vrf_dev_table_ifindex(struct net *net, int ifindex)
+static inline u32 vrf_dev_table_ifindex(struct net *net, int ifindex)
 {
 	return 0;
 }
 
-static inline int vrf_dev_table_rtnl(const struct net_device *dev)
+static inline u32 vrf_dev_table_rtnl(const struct net_device *dev)
 {
 	return 0;
 }

include/trace/events/fib.h

@@ -11,12 +11,12 @@
 
 TRACE_EVENT(fib_table_lookup,
 
-	TP_PROTO(int tb_id, const struct flowi4 *flp),
+	TP_PROTO(u32 tb_id, const struct flowi4 *flp),
 
 	TP_ARGS(tb_id, flp),
 
 	TP_STRUCT__entry(
-		__field(	int,	tb_id		)
+		__field(	u32,	tb_id		)
 		__field(	int,	oif		)
 		__field(	int,	iif		)
 		__field(	__u8,	tos		)
@@ -43,7 +43,7 @@ TRACE_EVENT(fib_table_lookup,
 		*p32 = flp->daddr;
 	),
 
-	TP_printk("table %d oif %d iif %d src %pI4 dst %pI4 tos %d scope %d flags %x",
+	TP_printk("table %u oif %d iif %d src %pI4 dst %pI4 tos %d scope %d flags %x",
 		  __entry->tb_id, __entry->oif, __entry->iif,
 		  __entry->src, __entry->dst, __entry->tos, __entry->scope,
 		  __entry->flags)

net/ipv4/af_inet.c

@@ -428,7 +428,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	struct net *net = sock_net(sk);
 	unsigned short snum;
 	int chk_addr_ret;
-	int tb_id = RT_TABLE_LOCAL;
+	u32 tb_id = RT_TABLE_LOCAL;
 	int err;
 
 	/* If the socket has its own bind function then use it. (RAW) */

net/ipv4/fib_frontend.c

@@ -213,7 +213,7 @@ void fib_flush_external(struct net *net)
  */
 static inline unsigned int __inet_dev_addr_type(struct net *net,
 						const struct net_device *dev,
-						__be32 addr, int tb_id)
+						__be32 addr, u32 tb_id)
 {
 	struct flowi4		fl4 = { .daddr = addr };
 	struct fib_result	res;
@@ -240,7 +240,7 @@ static inline unsigned int __inet_dev_addr_type(struct net *net,
 	return ret;
 }
 
-unsigned int inet_addr_type_table(struct net *net, __be32 addr, int tb_id)
+unsigned int inet_addr_type_table(struct net *net, __be32 addr, u32 tb_id)
 {
 	return __inet_dev_addr_type(net, NULL, addr, tb_id);
 }
@@ -255,7 +255,7 @@ EXPORT_SYMBOL(inet_addr_type);
 unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,
 				__be32 addr)
 {
-	int rt_table = vrf_dev_table(dev) ? : RT_TABLE_LOCAL;
+	u32 rt_table = vrf_dev_table(dev) ? : RT_TABLE_LOCAL;
 
 	return __inet_dev_addr_type(net, dev, addr, rt_table);
 }
@@ -268,7 +268,7 @@ unsigned int inet_addr_type_dev_table(struct net *net,
 				      const struct net_device *dev,
 				      __be32 addr)
 {
-	int rt_table = vrf_dev_table(dev) ? : RT_TABLE_LOCAL;
+	u32 rt_table = vrf_dev_table(dev) ? : RT_TABLE_LOCAL;
 
 	return __inet_dev_addr_type(net, NULL, addr, rt_table);
 }
@@ -803,7 +803,7 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
 static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifaddr *ifa)
 {
 	struct net *net = dev_net(ifa->ifa_dev->dev);
-	int tb_id = vrf_dev_table_rtnl(ifa->ifa_dev->dev);
+	u32 tb_id = vrf_dev_table_rtnl(ifa->ifa_dev->dev);
 	struct fib_table *tb;
 	struct fib_config cfg = {
 		.fc_protocol = RTPROT_KERNEL,

net/ipv4/fib_semantics.c

@@ -863,7 +863,7 @@ static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc)
 {
 	if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
 	    fib_prefsrc != cfg->fc_dst) {
-		int tb_id = cfg->fc_table;
+		u32 tb_id = cfg->fc_table;
 
 		if (tb_id == RT_TABLE_MAIN)
 			tb_id = RT_TABLE_LOCAL;