net: change netdev->features to u32

Quoting Ben Hutchings: we presumably won't be defining features that
can only be enabled on 64-bit architectures.

Occurences found by `grep -r` on net/, drivers/net, include/

[ Move features and vlan_features next to each other in
  struct netdev, as per Eric Dumazet's suggestion -DaveM ]

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bnx2.c

@@ -8312,7 +8312,7 @@ static const struct net_device_ops bnx2_netdev_ops = {
 #endif
 };
 
-static void inline vlan_features_add(struct net_device *dev, unsigned long flags)
+static void inline vlan_features_add(struct net_device *dev, u32 flags)
 {
 	dev->vlan_features |= flags;
 }

drivers/net/bonding/bond_main.c

@@ -1372,8 +1372,8 @@ static int bond_compute_features(struct bonding *bond)
 {
 	struct slave *slave;
 	struct net_device *bond_dev = bond->dev;
-	unsigned long features = bond_dev->features;
-	unsigned long vlan_features = 0;
+	u32 features = bond_dev->features;
+	u32 vlan_features = 0;
 	unsigned short max_hard_header_len = max((u16)ETH_HLEN,
 						bond_dev->hard_header_len);
 	int i;

drivers/net/myri10ge/myri10ge.c

@@ -253,7 +253,7 @@ struct myri10ge_priv {
 	unsigned long serial_number;
 	int vendor_specific_offset;
 	int fw_multicast_support;
-	unsigned long features;
+	u32 features;
 	u32 max_tso6;
 	u32 read_dma;
 	u32 write_dma;
@@ -1776,7 +1776,7 @@ static int myri10ge_set_rx_csum(struct net_device *netdev, u32 csum_enabled)
 static int myri10ge_set_tso(struct net_device *netdev, u32 tso_enabled)
 {
 	struct myri10ge_priv *mgp = netdev_priv(netdev);
-	unsigned long flags = mgp->features & (NETIF_F_TSO6 | NETIF_F_TSO);
+	u32 flags = mgp->features & (NETIF_F_TSO6 | NETIF_F_TSO);
 
 	if (tso_enabled)
 		netdev->features |= flags;

drivers/net/sfc/ethtool.c

@@ -502,7 +502,7 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
 static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
 {
 	struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
-	unsigned long features;
+	u32 features;
 
 	features = NETIF_F_TSO;
 	if (efx->type->offload_features & NETIF_F_V6_CSUM)
@@ -519,7 +519,7 @@ static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
 static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
-	unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
+	u32 features = efx->type->offload_features & NETIF_F_ALL_CSUM;
 
 	if (enable)
 		net_dev->features |= features;

drivers/net/sfc/net_driver.h

@@ -906,7 +906,7 @@ struct efx_nic_type {
 	unsigned int phys_addr_channels;
 	unsigned int tx_dc_base;
 	unsigned int rx_dc_base;
-	unsigned long offload_features;
+	u32 offload_features;
 	u32 reset_world_flags;
 };
 

drivers/net/tun.c

@@ -1142,7 +1142,7 @@ static int tun_get_iff(struct net *net, struct tun_struct *tun,
  * privs required. */
 static int set_offload(struct net_device *dev, unsigned long arg)
 {
-	unsigned int old_features, features;
+	u32 old_features, features;
 
 	old_features = dev->features;
 	/* Unset features, set them as we chew on the arg. */

include/linux/netdevice.h

@@ -914,7 +914,11 @@ struct net_device {
 	struct list_head	unreg_list;
 
 	/* Net device features */
-	unsigned long		features;
+	u32			features;
+
+	/* VLAN feature mask */
+	u32			vlan_features;
+
 #define NETIF_F_SG		1	/* Scatter/gather IO. */
 #define NETIF_F_IP_CSUM		2	/* Can checksum TCP/UDP over IPv4. */
 #define NETIF_F_NO_CSUM		4	/* Does not require checksum. F.e. loopack. */
@@ -1176,9 +1180,6 @@ struct net_device {
 	/* rtnetlink link ops */
 	const struct rtnl_link_ops *rtnl_link_ops;
 
-	/* VLAN feature mask */
-	unsigned long vlan_features;
-
 	/* for setting kernel sock attribute on TCP connection setup */
 #define GSO_MAX_SIZE		65536
 	unsigned int		gso_max_size;
@@ -1401,7 +1402,7 @@ struct packet_type {
 					 struct packet_type *,
 					 struct net_device *);
 	struct sk_buff		*(*gso_segment)(struct sk_buff *skb,
-						int features);
+						u32 features);
 	int			(*gso_send_check)(struct sk_buff *skb);
 	struct sk_buff		**(*gro_receive)(struct sk_buff **head,
 					       struct sk_buff *skb);
@@ -2370,7 +2371,7 @@ extern int		netdev_tstamp_prequeue;
 extern int		weight_p;
 extern int		netdev_set_master(struct net_device *dev, struct net_device *master);
 extern int skb_checksum_help(struct sk_buff *skb);
-extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features);
+extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features);
 #ifdef CONFIG_BUG
 extern void netdev_rx_csum_fault(struct net_device *dev);
 #else
@@ -2397,22 +2398,21 @@ extern char *netdev_drivername(const struct net_device *dev, char *buffer, int l
 
 extern void linkwatch_run_queue(void);
 
-unsigned long netdev_increment_features(unsigned long all, unsigned long one,
-					unsigned long mask);
-unsigned long netdev_fix_features(unsigned long features, const char *name);
+u32 netdev_increment_features(u32 all, u32 one, u32 mask);
+u32 netdev_fix_features(u32 features, const char *name);
 
 void netif_stacked_transfer_operstate(const struct net_device *rootdev,
 					struct net_device *dev);
 
-int netif_skb_features(struct sk_buff *skb);
+u32 netif_skb_features(struct sk_buff *skb);
 
-static inline int net_gso_ok(int features, int gso_type)
+static inline int net_gso_ok(u32 features, int gso_type)
 {
 	int feature = gso_type << NETIF_F_GSO_SHIFT;
 	return (features & feature) == feature;
 }
 
-static inline int skb_gso_ok(struct sk_buff *skb, int features)
+static inline int skb_gso_ok(struct sk_buff *skb, u32 features)
 {
 	return net_gso_ok(features, skb_shinfo(skb)->gso_type) &&
 	       (!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST));

include/linux/skbuff.h

@@ -1877,7 +1877,7 @@ extern void	       skb_split(struct sk_buff *skb,
 extern int	       skb_shift(struct sk_buff *tgt, struct sk_buff *skb,
 				 int shiftlen);
 
-extern struct sk_buff *skb_segment(struct sk_buff *skb, int features);
+extern struct sk_buff *skb_segment(struct sk_buff *skb, u32 features);
 
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
 				       int len, void *buffer)

include/net/protocol.h

@@ -38,7 +38,7 @@ struct net_protocol {
 	void			(*err_handler)(struct sk_buff *skb, u32 info);
 	int			(*gso_send_check)(struct sk_buff *skb);
 	struct sk_buff	       *(*gso_segment)(struct sk_buff *skb,
-					       int features);
+					       u32 features);
 	struct sk_buff	      **(*gro_receive)(struct sk_buff **head,
 					       struct sk_buff *skb);
 	int			(*gro_complete)(struct sk_buff *skb);
@@ -57,7 +57,7 @@ struct inet6_protocol {
 
 	int	(*gso_send_check)(struct sk_buff *skb);
 	struct sk_buff *(*gso_segment)(struct sk_buff *skb,
-				       int features);
+				       u32 features);
 	struct sk_buff **(*gro_receive)(struct sk_buff **head,
 					struct sk_buff *skb);
 	int	(*gro_complete)(struct sk_buff *skb);

include/net/tcp.h

@@ -1404,7 +1404,7 @@ extern struct request_sock_ops tcp6_request_sock_ops;
 extern void tcp_v4_destroy_sock(struct sock *sk);
 
 extern int tcp_v4_gso_send_check(struct sk_buff *skb);
-extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features);
+extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb, u32 features);
 extern struct sk_buff **tcp_gro_receive(struct sk_buff **head,
 					struct sk_buff *skb);
 extern struct sk_buff **tcp4_gro_receive(struct sk_buff **head,

include/net/udp.h

@@ -245,5 +245,5 @@ extern void udp4_proc_exit(void);
 extern void udp_init(void);
 
 extern int udp4_ufo_send_check(struct sk_buff *skb);
-extern struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, int features);
+extern struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, u32 features);
 #endif	/* _UDP_H */

net/8021q/vlan.c

@@ -327,7 +327,7 @@ static void vlan_sync_address(struct net_device *dev,
 static void vlan_transfer_features(struct net_device *dev,
 				   struct net_device *vlandev)
 {
-	unsigned long old_features = vlandev->features;
+	u32 old_features = vlandev->features;
 
 	vlandev->features &= ~dev->vlan_features;
 	vlandev->features |= dev->features & dev->vlan_features;

net/bridge/br_if.c

@@ -365,7 +365,7 @@ int br_min_mtu(const struct net_bridge *br)
 void br_features_recompute(struct net_bridge *br)
 {
 	struct net_bridge_port *p;
-	unsigned long features, mask;
+	u32 features, mask;
 
 	features = mask = br->feature_mask;
 	if (list_empty(&br->port_list))

net/bridge/br_private.h

@@ -182,7 +182,7 @@ struct net_bridge
 	struct br_cpu_netstats __percpu *stats;
 	spinlock_t			hash_lock;
 	struct hlist_head		hash[BR_HASH_SIZE];
-	unsigned long			feature_mask;
+	u32				feature_mask;
 #ifdef CONFIG_BRIDGE_NETFILTER
 	struct rtable 			fake_rtable;
 	bool				nf_call_iptables;

net/core/dev.c

@@ -1858,7 +1858,7 @@ EXPORT_SYMBOL(skb_checksum_help);
  *	It may return NULL if the skb requires no segmentation.  This is
  *	only possible when GSO is used for verifying header integrity.
  */
-struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
+struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
 	struct packet_type *ptype;
@@ -2046,7 +2046,7 @@ static bool can_checksum_protocol(unsigned long features, __be16 protocol)
 		 protocol == htons(ETH_P_FCOE)));
 }
 
-static int harmonize_features(struct sk_buff *skb, __be16 protocol, int features)
+static u32 harmonize_features(struct sk_buff *skb, __be16 protocol, u32 features)
 {
 	if (!can_checksum_protocol(features, protocol)) {
 		features &= ~NETIF_F_ALL_CSUM;
@@ -2058,10 +2058,10 @@ static int harmonize_features(struct sk_buff *skb, __be16 protocol, int features
 	return features;
 }
 
-int netif_skb_features(struct sk_buff *skb)
+u32 netif_skb_features(struct sk_buff *skb)
 {
 	__be16 protocol = skb->protocol;
-	int features = skb->dev->features;
+	u32 features = skb->dev->features;
 
 	if (protocol == htons(ETH_P_8021Q)) {
 		struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
@@ -2106,7 +2106,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 	int rc = NETDEV_TX_OK;
 
 	if (likely(!skb->next)) {
-		int features;
+		u32 features;
 
 		/*
 		 * If device doesnt need skb->dst, release it right now while
@@ -5213,7 +5213,7 @@ static void rollback_registered(struct net_device *dev)
 	rollback_registered_many(&single);
 }
 
-unsigned long netdev_fix_features(unsigned long features, const char *name)
+u32 netdev_fix_features(u32 features, const char *name)
 {
 	/* Fix illegal checksum combinations */
 	if ((features & NETIF_F_HW_CSUM) &&
@@ -6143,8 +6143,7 @@ static int dev_cpu_callback(struct notifier_block *nfb,
  *	@one to the master device with current feature set @all.  Will not
  *	enable anything that is off in @mask. Returns the new feature set.
  */
-unsigned long netdev_increment_features(unsigned long all, unsigned long one,
-					unsigned long mask)
+u32 netdev_increment_features(u32 all, u32 one, u32 mask)
 {
 	/* If device needs checksumming, downgrade to it. */
 	if (all & NETIF_F_NO_CSUM && !(one & NETIF_F_NO_CSUM))

net/core/ethtool.c

@@ -1458,7 +1458,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	void __user *useraddr = ifr->ifr_data;
 	u32 ethcmd;
 	int rc;
-	unsigned long old_features;
+	u32 old_features;
 
 	if (!dev || !netif_device_present(dev))
 		return -ENODEV;

net/core/net-sysfs.c

@@ -99,7 +99,7 @@ NETDEVICE_SHOW(addr_assign_type, fmt_dec);
 NETDEVICE_SHOW(addr_len, fmt_dec);
 NETDEVICE_SHOW(iflink, fmt_dec);
 NETDEVICE_SHOW(ifindex, fmt_dec);
-NETDEVICE_SHOW(features, fmt_long_hex);
+NETDEVICE_SHOW(features, fmt_hex);
 NETDEVICE_SHOW(type, fmt_dec);
 NETDEVICE_SHOW(link_mode, fmt_dec);
 

net/core/skbuff.c

@@ -2497,7 +2497,7 @@ EXPORT_SYMBOL_GPL(skb_pull_rcsum);
  *	a pointer to the first in a list of new skbs for the segments.
  *	In case of error it returns ERR_PTR(err).
  */
-struct sk_buff *skb_segment(struct sk_buff *skb, int features)
+struct sk_buff *skb_segment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = NULL;
 	struct sk_buff *tail = NULL;
@@ -2507,7 +2507,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
 	unsigned int offset = doffset;
 	unsigned int headroom;
 	unsigned int len;
-	int sg = features & NETIF_F_SG;
+	int sg = !!(features & NETIF_F_SG);
 	int nfrags = skb_shinfo(skb)->nr_frags;
 	int err = -ENOMEM;
 	int i = 0;

net/ipv4/af_inet.c

@@ -1215,7 +1215,7 @@ out:
 	return err;
 }
 
-static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
+static struct sk_buff *inet_gso_segment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	struct iphdr *iph;

net/ipv4/tcp.c

@@ -2653,7 +2653,7 @@ int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
 EXPORT_SYMBOL(compat_tcp_getsockopt);
 #endif
 
-struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
+struct sk_buff *tcp_tso_segment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	struct tcphdr *th;

net/ipv4/udp.c

@@ -2199,7 +2199,7 @@ int udp4_ufo_send_check(struct sk_buff *skb)
 	return 0;
 }
 
-struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, int features)
+struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	unsigned int mss;

net/ipv6/af_inet6.c

@@ -772,7 +772,7 @@ out:
 	return err;
 }
 
-static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
+static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	struct ipv6hdr *ipv6h;

net/ipv6/udp.c

@@ -1299,7 +1299,7 @@ static int udp6_ufo_send_check(struct sk_buff *skb)
 	return 0;
 }
 
-static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, int features)
+static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, u32 features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	unsigned int mss;