[PATCH] Removed: block comments trailing without separate line, missing blanks after decarations, comparasion to NULL, assignment in if condition, not necessary spaces after casts, multiple assignments, line over 80 characters, alignment not matched to open parenthesis, kmalloc with multiplying instead kmalloc_array.

[Janusz Wolak]

Signed-off-by: Janusz Wolak <januszvdm@xxxxxxxxxxxxxxx>
---
 net/openvswitch/datapath.c | 72 +++++++++++++++++++++++++---------------------
 1 file changed, 40 insertions(+), 32 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 91a8b00..fb9cb80 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -79,8 +79,8 @@ static const struct genl_multicast_group ovs_dp_vport_multicast_group = {
 	.name = OVS_VPORT_MCGROUP,
 };
 
-/* Check if need to build a reply message.
- * OVS userspace sets the NLM_F_ECHO flag if it needs the reply. */
+/* Check if need to build a reply message.*/
+/* OVS userspace sets the NLM_F_ECHO flag if it needs the reply. */
 static bool ovs_must_notify(struct genl_family *family, struct genl_info *info,
 			    unsigned int group)
 {
@@ -149,6 +149,7 @@ static struct datapath *get_dp_rcu(struct net *net, int dp_ifindex)
 
 	if (dev) {
 		struct vport *vport = ovs_internal_dev_get_vport(dev);
+
 		if (vport)
 			return vport->dp;
 	}
@@ -175,6 +176,7 @@ static inline struct datapath *get_dp(struct net *net, int dp_ifindex)
 const char *ovs_dp_name(const struct datapath *dp)
 {
 	struct vport *vport = ovs_vport_ovsl_rcu(dp, OVSP_LOCAL);
+
 	return ovs_vport_name(vport);
 }
 
@@ -344,7 +346,7 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
 	*OVS_CB(skb) = ovs_cb;
 	if (IS_ERR(segs))
 		return PTR_ERR(segs);
-	if (segs == NULL)
+	if (!segs)
 		return -EINVAL;
 
 	if (gso_type & SKB_GSO_UDP) {
@@ -455,8 +457,8 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 	}
 
 	/* Complete checksum if needed */
-	if (skb->ip_summed == CHECKSUM_PARTIAL &&
-	    (err = skb_checksum_help(skb)))
+	err = skb_checksum_help(skb);
+	if (skb->ip_summed == CHECKSUM_PARTIAL && err)
 		goto out;
 
 	/* Older versions of OVS user space enforce alignment of the last
@@ -516,9 +518,10 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 		pad_packet(dp, user_skb);
 	}
 
-	/* Only reserve room for attribute header, packet data is added
-	 * in skb_zerocopy() */
-	if (!(nla = nla_reserve(user_skb, OVS_PACKET_ATTR_PACKET, 0))) {
+	/* Only reserve room for attribute header, packet data is addedi */
+	/* in skb_zerocopy() */
+	nla = nla_reserve(user_skb, OVS_PACKET_ATTR_PACKET, 0);
+	if (!nla) {
 		err = -ENOBUFS;
 		goto out;
 	}
@@ -531,7 +534,7 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 	/* Pad OVS_PACKET_ATTR_PACKET if linear copy was performed */
 	pad_packet(dp, user_skb);
 
-	((struct nlmsghdr *) user_skb->data)->nlmsg_len = user_skb->len;
+	((struct nlmsghdr *)user_skb->data)->nlmsg_len = user_skb->len;
 
 	err = genlmsg_unicast(ovs_dp_get_net(dp), user_skb, upcall_info->portid);
 	user_skb = NULL;
@@ -577,9 +580,9 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 	skb_reset_mac_header(packet);
 	eth = eth_hdr(packet);
 
-	/* Normally, setting the skb 'protocol' field would be handled by a
-	 * call to eth_type_trans(), but it assumes there's a sending
-	 * device, which we may not have. */
+	/* Normally, setting the skb 'protocol' field would be handled by a */
+	/* call to eth_type_trans(), but it assumes there's a sending */
+	/* device, which we may not have. */
 	if (eth_proto_is_802_3(eth->h_proto))
 		packet->protocol = eth->h_proto;
 	else
@@ -685,7 +688,9 @@ static void get_dp_stats(const struct datapath *dp, struct ovs_dp_stats *stats,
 	stats->n_flows = ovs_flow_tbl_count(&dp->table);
 	mega_stats->n_masks = ovs_flow_tbl_num_masks(&dp->table);
 
-	stats->n_hit = stats->n_missed = stats->n_lost = 0;
+	stats->n_hit = 0;
+	stats->n_missed = 0;
+	stats->n_lost = 0;
 
 	for_each_possible_cpu(i) {
 		const struct dp_stats_percpu *percpu_stats;
@@ -765,11 +770,12 @@ static int ovs_flow_cmd_fill_stats(const struct sw_flow *flow,
 		return -EMSGSIZE;
 
 	if (stats.n_packets &&
-	    nla_put(skb, OVS_FLOW_ATTR_STATS, sizeof(struct ovs_flow_stats), &stats))
+	    nla_put(skb, OVS_FLOW_ATTR_STATS, sizeof(struct ovs_flow_stats),
+		    &stats))
 		return -EMSGSIZE;
 
 	if ((u8)ntohs(tcp_flags) &&
-	     nla_put_u8(skb, OVS_FLOW_ATTR_TCP_FLAGS, (u8)ntohs(tcp_flags)))
+	    nla_put_u8(skb, OVS_FLOW_ATTR_TCP_FLAGS, (u8)ntohs(tcp_flags)))
 		return -EMSGSIZE;
 
 	return 0;
@@ -800,9 +806,9 @@ static int ovs_flow_cmd_fill_actions(const struct sw_flow *flow,
 		err = ovs_nla_put_actions(sf_acts->actions,
 					  sf_acts->actions_len, skb);
 
-		if (!err)
+		if (!err) {
 			nla_nest_end(skb, start);
-		else {
+		} else {
 			if (skb_orig_len)
 				return err;
 
@@ -1310,7 +1316,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	ovs_flow_tbl_remove(&dp->table, flow);
 	ovs_unlock();
 
-	reply = ovs_flow_cmd_alloc_info((const struct sw_flow_actions __force *) flow->sf_acts,
+	reply = ovs_flow_cmd_alloc_info((const struct sw_flow_actions __force *)flow->sf_acts,
 					&flow->id, info, false, ufid_flags);
 	if (likely(reply)) {
 		if (likely(!IS_ERR(reply))) {
@@ -1325,7 +1331,8 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 
 			ovs_notify(&dp_flow_genl_family, reply, info);
 		} else {
-			netlink_set_err(sock_net(skb->sk)->genl_sock, 0, 0, PTR_ERR(reply));
+			netlink_set_err(sock_net(skb->sk)->genl_sock, 0, 0,
+					PTR_ERR(reply));
 		}
 	}
 
@@ -1452,7 +1459,7 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
 	int err;
 
 	ovs_header = genlmsg_put(skb, portid, seq, &dp_datapath_genl_family,
-				   flags, cmd);
+				 flags, cmd);
 	if (!ovs_header)
 		goto error;
 
@@ -1464,11 +1471,11 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
 
 	get_dp_stats(dp, &dp_stats, &dp_megaflow_stats);
 	if (nla_put(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats),
-			&dp_stats))
+		    &dp_stats))
 		goto nla_put_failure;
 
 	if (nla_put(skb, OVS_DP_ATTR_MEGAFLOW_STATS,
-			sizeof(struct ovs_dp_megaflow_stats),
+		    sizeof(struct ovs_dp_megaflow_stats),
 			&dp_megaflow_stats))
 		goto nla_put_failure;
 
@@ -1496,9 +1503,9 @@ static struct datapath *lookup_datapath(struct net *net,
 {
 	struct datapath *dp;
 
-	if (!a[OVS_DP_ATTR_NAME])
+	if (!a[OVS_DP_ATTR_NAME]) {
 		dp = get_dp(net, ovs_header->dp_ifindex);
-	else {
+	} else {
 		struct vport *vport;
 
 		vport = ovs_vport_locate(net, nla_data(a[OVS_DP_ATTR_NAME]));
@@ -1507,7 +1514,8 @@ static struct datapath *lookup_datapath(struct net *net,
 	return dp ? dp : ERR_PTR(-ENODEV);
 }
 
-static void ovs_dp_reset_user_features(struct sk_buff *skb, struct genl_info *info)
+static void ovs_dp_reset_user_features(struct sk_buff *skb,
+				       struct genl_info *info)
 {
 	struct datapath *dp;
 
@@ -1545,7 +1553,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 
 	err = -ENOMEM;
 	dp = kzalloc(sizeof(*dp), GFP_KERNEL);
-	if (dp == NULL)
+	if (!dp)
 		goto err_free_reply;
 
 	ovs_dp_set_net(dp, sock_net(skb->sk));
@@ -1561,8 +1569,8 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 		goto err_destroy_table;
 	}
 
-	dp->ports = kmalloc(DP_VPORT_HASH_BUCKETS * sizeof(struct hlist_head),
-			    GFP_KERNEL);
+	dp->ports = kmalloc_array(DP_VPORT_HASH_BUCKETS,
+				  sizeof(struct hlist_head), GFP_KERNEL)
 	if (!dp->ports) {
 		err = -ENOMEM;
 		goto err_destroy_percpu;
@@ -1897,7 +1905,8 @@ static struct vport *lookup_vport(struct net *net,
 		    ovs_header->dp_ifindex != get_dpifindex(vport->dp))
 			return ERR_PTR(-ENODEV);
 		return vport;
-	} else if (a[OVS_VPORT_ATTR_PORT_NO]) {
+	} else {
+		if (a[OVS_VPORT_ATTR_PORT_NO]) {
 		u32 port_no = nla_get_u32(a[OVS_VPORT_ATTR_PORT_NO]);
 
 		if (port_no >= DP_MAX_PORTS)
@@ -1911,8 +1920,9 @@ static struct vport *lookup_vport(struct net *net,
 		if (!vport)
 			return ERR_PTR(-ENODEV);
 		return vport;
-	} else
+	} else {
 		return ERR_PTR(-EINVAL);
+	}
 }
 
 static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
@@ -2021,7 +2031,6 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 			goto exit_unlock_free;
 	}
 
-
 	if (a[OVS_VPORT_ATTR_UPCALL_PID]) {
 		struct nlattr *ids = a[OVS_VPORT_ATTR_UPCALL_PID];
 
@@ -2218,7 +2227,6 @@ static int dp_register_genl(void)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(dp_genl_families); i++) {
-
 		err = genl_register_family(dp_genl_families[i]);
 		if (err)
 			goto error;
-- 
2.5.0