netlink: consistently use NLA_POLICY_EXACT_LEN()

Change places that open-code NLA_POLICY_EXACT_LEN() to
use the macro instead, giving us flexibility in how we
handle the details of the macro.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Acked-by: NMatthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/wireguard/netlink.c

@@ -22,8 +22,8 @@ static struct genl_family genl_family;
 static const struct nla_policy device_policy[WGDEVICE_A_MAX + 1] = {
 	[WGDEVICE_A_IFINDEX]		= { .type = NLA_U32 },
 	[WGDEVICE_A_IFNAME]		= { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
-	[WGDEVICE_A_PRIVATE_KEY]	= { .type = NLA_EXACT_LEN, .len = NOISE_PUBLIC_KEY_LEN },
-	[WGDEVICE_A_PUBLIC_KEY]		= { .type = NLA_EXACT_LEN, .len = NOISE_PUBLIC_KEY_LEN },
+	[WGDEVICE_A_PRIVATE_KEY]	= NLA_POLICY_EXACT_LEN(NOISE_PUBLIC_KEY_LEN),
+	[WGDEVICE_A_PUBLIC_KEY]		= NLA_POLICY_EXACT_LEN(NOISE_PUBLIC_KEY_LEN),
 	[WGDEVICE_A_FLAGS]		= { .type = NLA_U32 },
 	[WGDEVICE_A_LISTEN_PORT]	= { .type = NLA_U16 },
 	[WGDEVICE_A_FWMARK]		= { .type = NLA_U32 },
@@ -31,12 +31,12 @@ static const struct nla_policy device_policy[WGDEVICE_A_MAX + 1] = {
 };
 
 static const struct nla_policy peer_policy[WGPEER_A_MAX + 1] = {
-	[WGPEER_A_PUBLIC_KEY]				= { .type = NLA_EXACT_LEN, .len = NOISE_PUBLIC_KEY_LEN },
-	[WGPEER_A_PRESHARED_KEY]			= { .type = NLA_EXACT_LEN, .len = NOISE_SYMMETRIC_KEY_LEN },
+	[WGPEER_A_PUBLIC_KEY]				= NLA_POLICY_EXACT_LEN(NOISE_PUBLIC_KEY_LEN),
+	[WGPEER_A_PRESHARED_KEY]			= NLA_POLICY_EXACT_LEN(NOISE_SYMMETRIC_KEY_LEN),
 	[WGPEER_A_FLAGS]				= { .type = NLA_U32 },
 	[WGPEER_A_ENDPOINT]				= { .type = NLA_MIN_LEN, .len = sizeof(struct sockaddr) },
 	[WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL]	= { .type = NLA_U16 },
-	[WGPEER_A_LAST_HANDSHAKE_TIME]			= { .type = NLA_EXACT_LEN, .len = sizeof(struct __kernel_timespec) },
+	[WGPEER_A_LAST_HANDSHAKE_TIME]			= NLA_POLICY_EXACT_LEN(sizeof(struct __kernel_timespec)),
 	[WGPEER_A_RX_BYTES]				= { .type = NLA_U64 },
 	[WGPEER_A_TX_BYTES]				= { .type = NLA_U64 },
 	[WGPEER_A_ALLOWEDIPS]				= { .type = NLA_NESTED },

net/bridge/br_netlink.c

@@ -1095,8 +1095,8 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
 	[IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
 	[IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
 	[IFLA_BR_VLAN_STATS_PER_PORT] = { .type = NLA_U8 },
-	[IFLA_BR_MULTI_BOOLOPT] = { .type = NLA_EXACT_LEN,
-				    .len = sizeof(struct br_boolopt_multi) },
+	[IFLA_BR_MULTI_BOOLOPT] =
+		NLA_POLICY_EXACT_LEN(sizeof(struct br_boolopt_multi)),
 };
 
 static int br_changelink(struct net_device *brdev, struct nlattr *tb[],

net/bridge/br_vlan.c

@@ -1884,8 +1884,8 @@ static int br_vlan_rtm_dump(struct sk_buff *skb, struct netlink_callback *cb)
 }
 
 static const struct nla_policy br_vlan_db_policy[BRIDGE_VLANDB_ENTRY_MAX + 1] = {
-	[BRIDGE_VLANDB_ENTRY_INFO]	= { .type = NLA_EXACT_LEN,
-					    .len = sizeof(struct bridge_vlan_info) },
+	[BRIDGE_VLANDB_ENTRY_INFO]	=
+		NLA_POLICY_EXACT_LEN(sizeof(struct bridge_vlan_info)),
 	[BRIDGE_VLANDB_ENTRY_RANGE]	= { .type = NLA_U16 },
 	[BRIDGE_VLANDB_ENTRY_STATE]	= { .type = NLA_U8 },
 	[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO] = { .type = NLA_NESTED },

net/mptcp/pm_netlink.c

@@ -384,8 +384,8 @@ mptcp_pm_addr_policy[MPTCP_PM_ADDR_ATTR_MAX + 1] = {
 	[MPTCP_PM_ADDR_ATTR_FAMILY]	= { .type	= NLA_U16,	},
 	[MPTCP_PM_ADDR_ATTR_ID]		= { .type	= NLA_U8,	},
 	[MPTCP_PM_ADDR_ATTR_ADDR4]	= { .type	= NLA_U32,	},
-	[MPTCP_PM_ADDR_ATTR_ADDR6]	= { .type	= NLA_EXACT_LEN,
-					    .len   = sizeof(struct in6_addr), },
+	[MPTCP_PM_ADDR_ATTR_ADDR6]	=
+		NLA_POLICY_EXACT_LEN(sizeof(struct in6_addr)),
 	[MPTCP_PM_ADDR_ATTR_PORT]	= { .type	= NLA_U16	},
 	[MPTCP_PM_ADDR_ATTR_FLAGS]	= { .type	= NLA_U32	},
 	[MPTCP_PM_ADDR_ATTR_IF_IDX]     = { .type	= NLA_S32	},

net/sched/act_ct.c

@@ -1039,7 +1039,7 @@ static int tcf_ct_act(struct sk_buff *skb, const struct tc_action *a,
 
 static const struct nla_policy ct_policy[TCA_CT_MAX + 1] = {
 	[TCA_CT_ACTION] = { .type = NLA_U16 },
-	[TCA_CT_PARMS] = { .type = NLA_EXACT_LEN, .len = sizeof(struct tc_ct) },
+	[TCA_CT_PARMS] = NLA_POLICY_EXACT_LEN(sizeof(struct tc_ct)),
 	[TCA_CT_ZONE] = { .type = NLA_U16 },
 	[TCA_CT_MARK] = { .type = NLA_U32 },
 	[TCA_CT_MARK_MASK] = { .type = NLA_U32 },
@@ -1049,10 +1049,8 @@ static const struct nla_policy ct_policy[TCA_CT_MAX + 1] = {
 				 .len = 128 / BITS_PER_BYTE },
 	[TCA_CT_NAT_IPV4_MIN] = { .type = NLA_U32 },
 	[TCA_CT_NAT_IPV4_MAX] = { .type = NLA_U32 },
-	[TCA_CT_NAT_IPV6_MIN] = { .type = NLA_EXACT_LEN,
-				  .len = sizeof(struct in6_addr) },
-	[TCA_CT_NAT_IPV6_MAX] = { .type = NLA_EXACT_LEN,
-				   .len = sizeof(struct in6_addr) },
+	[TCA_CT_NAT_IPV6_MIN] = NLA_POLICY_EXACT_LEN(sizeof(struct in6_addr)),
+	[TCA_CT_NAT_IPV6_MAX] = NLA_POLICY_EXACT_LEN(sizeof(struct in6_addr)),
 	[TCA_CT_NAT_PORT_MIN] = { .type = NLA_U16 },
 	[TCA_CT_NAT_PORT_MAX] = { .type = NLA_U16 },
 };

net/sched/act_ctinfo.c

@@ -144,9 +144,8 @@ static int tcf_ctinfo_act(struct sk_buff *skb, const struct tc_action *a,
 }
 
 static const struct nla_policy ctinfo_policy[TCA_CTINFO_MAX + 1] = {
-	[TCA_CTINFO_ACT]		  = { .type = NLA_EXACT_LEN,
-					      .len = sizeof(struct
-							    tc_ctinfo) },
+	[TCA_CTINFO_ACT]		  =
+		NLA_POLICY_EXACT_LEN(sizeof(struct tc_ctinfo)),
 	[TCA_CTINFO_ZONE]		  = { .type = NLA_U16 },
 	[TCA_CTINFO_PARMS_DSCP_MASK]	  = { .type = NLA_U32 },
 	[TCA_CTINFO_PARMS_DSCP_STATEMASK] = { .type = NLA_U32 },

net/sched/act_gate.c

@@ -159,8 +159,8 @@ static const struct nla_policy entry_policy[TCA_GATE_ENTRY_MAX + 1] = {
 };
 
 static const struct nla_policy gate_policy[TCA_GATE_MAX + 1] = {
-	[TCA_GATE_PARMS]		= { .len = sizeof(struct tc_gate),
-					    .type = NLA_EXACT_LEN },
+	[TCA_GATE_PARMS]		=
+		NLA_POLICY_EXACT_LEN(sizeof(struct tc_gate)),
 	[TCA_GATE_PRIORITY]		= { .type = NLA_S32 },
 	[TCA_GATE_ENTRY_LIST]		= { .type = NLA_NESTED },
 	[TCA_GATE_BASE_TIME]		= { .type = NLA_U64 },

net/wireless/nl80211.c

@@ -654,10 +654,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 	[NL80211_ATTR_RECEIVE_MULTICAST] = { .type = NLA_FLAG },
 	[NL80211_ATTR_WIPHY_FREQ_OFFSET] = NLA_POLICY_RANGE(NLA_U32, 0, 999),
 	[NL80211_ATTR_SCAN_FREQ_KHZ] = { .type = NLA_NESTED },
-	[NL80211_ATTR_HE_6GHZ_CAPABILITY] = {
-		.type = NLA_EXACT_LEN,
-		.len = sizeof(struct ieee80211_he_6ghz_capa),
-	},
+	[NL80211_ATTR_HE_6GHZ_CAPABILITY] =
+		NLA_POLICY_EXACT_LEN(sizeof(struct ieee80211_he_6ghz_capa)),
 };
 
 /* policy for the key attributes */