netns: make struct pernet_operations::id unsigned int
Make struct pernet_operations::id unsigned.
There are 2 reasons to do so:
1)
This field is really an index into an zero based array and
thus is unsigned entity. Using negative value is out-of-bound
access by definition.
2)
On x86_64 unsigned 32-bit data which are mixed with pointers
via array indexing or offsets added or subtracted to pointers
are preffered to signed 32-bit data.
"int" being used as an array index needs to be sign-extended
to 64-bit before being used.
void f(long *p, int i)
{
g(p[i]);
}
roughly translates to
movsx rsi, esi
mov rdi, [rsi+...]
call g
MOVSX is 3 byte instruction which isn't necessary if the variable is
unsigned because x86_64 is zero extending by default.
Now, there is net_generic() function which, you guessed it right, uses
"int" as an array index:
static inline void *net_generic(const struct net *net, int id)
{
...
ptr = ng->ptr[id - 1];
...
}
And this function is used a lot, so those sign extensions add up.
Patch snipes ~1730 bytes on allyesconfig kernel (without all junk
messing with code generation):
add/remove: 0/0 grow/shrink: 70/598 up/down: 396/-2126 (-1730)
Unfortunately some functions actually grow bigger.
This is a semmingly random artefact of code generation with register
allocator being used differently. gcc decides that some variable
needs to live in new r8+ registers and every access now requires REX
prefix. Or it is shifted into r12, so [r12+0] addressing mode has to be
used which is longer than [r8]
However, overall balance is in negative direction:
add/remove: 0/0 grow/shrink: 70/598 up/down: 396/-2126 (-1730)
function old new delta
nfsd4_lock 3886 3959 +73
tipc_link_build_proto_msg 1096 1140 +44
mac80211_hwsim_new_radio 2776 2808 +32
tipc_mon_rcv 1032 1058 +26
svcauth_gss_legacy_init 1413 1429 +16
tipc_bcbase_select_primary 379 392 +13
nfsd4_exchange_id 1247 1260 +13
nfsd4_setclientid_confirm 782 793 +11
...
put_client_renew_locked 494 480 -14
ip_set_sockfn_get 730 716 -14
geneve_sock_add 829 813 -16
nfsd4_sequence_done 721 703 -18
nlmclnt_lookup_host 708 686 -22
nfsd4_lockt 1085 1063 -22
nfs_get_client 1077 1050 -27
tcf_bpf_init 1106 1076 -30
nfsd4_encode_fattr 5997 5930 -67
Total: Before=154856051, After=154854321, chg -0.00%
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index a793655..691f0ad 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -44,7 +44,7 @@
/* Global VLAN variables */
-int vlan_net_id __read_mostly;
+unsigned int vlan_net_id __read_mostly;
const char vlan_fullname[] = "802.1Q VLAN Support";
const char vlan_version[] = DRV_VERSION;
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index cc15579..df8bd65 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -159,7 +159,7 @@ void vlan_netlink_fini(void);
extern struct rtnl_link_ops vlan_link_ops;
-extern int vlan_net_id;
+extern unsigned int vlan_net_id;
struct proc_dir_entry;
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 8155bd2..83d937f 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -46,7 +46,7 @@
#include <linux/sysctl.h>
#endif
-static int brnf_net_id __read_mostly;
+static unsigned int brnf_net_id __read_mostly;
struct brnf_net {
bool enabled;
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index d730a0f..2d38b6e 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -52,7 +52,7 @@ struct caif_net {
struct caif_device_entry_list caifdevs;
};
-static int caif_net_id;
+static unsigned int caif_net_id;
static int q_high = 50; /* Percent */
struct cfcnfg *get_cfcnfg(struct net *net)
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 1309d78..35d37b1 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -55,7 +55,7 @@ static struct net_generic *net_alloc_generic(void)
return ng;
}
-static int net_assign_generic(struct net *net, int id, void *data)
+static int net_assign_generic(struct net *net, unsigned int id, void *data)
{
struct net_generic *ng, *old_ng;
@@ -122,8 +122,7 @@ static int ops_init(const struct pernet_operations *ops, struct net *net)
static void ops_free(const struct pernet_operations *ops, struct net *net)
{
if (ops->id && ops->size) {
- int id = *ops->id;
- kfree(net_generic(net, id));
+ kfree(net_generic(net, *ops->id));
}
}
@@ -881,7 +880,7 @@ static int register_pernet_operations(struct list_head *list,
}
return error;
}
- max_gen_ptrs = max_t(unsigned int, max_gen_ptrs, *ops->id);
+ max_gen_ptrs = max(max_gen_ptrs, *ops->id);
}
error = __register_pernet_operations(list, ops);
if (error) {
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 306b8f0..8e69ce4 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -413,7 +413,7 @@ struct pktgen_hdr {
};
-static int pg_net_id __read_mostly;
+static unsigned int pg_net_id __read_mostly;
struct pktgen_net {
struct net *net;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 576f705..78fd620 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -113,8 +113,8 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
static struct rtnl_link_ops ipgre_link_ops __read_mostly;
static int ipgre_tunnel_init(struct net_device *dev);
-static int ipgre_net_id __read_mostly;
-static int gre_tap_net_id __read_mostly;
+static unsigned int ipgre_net_id __read_mostly;
+static unsigned int gre_tap_net_id __read_mostly;
static void ipgre_err(struct sk_buff *skb, u32 info,
const struct tnl_ptk_info *tpi)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 12a92e3..823abae 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -994,7 +994,7 @@ int ip_tunnel_get_iflink(const struct net_device *dev)
}
EXPORT_SYMBOL(ip_tunnel_get_iflink);
-int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
+int ip_tunnel_init_net(struct net *net, unsigned int ip_tnl_net_id,
struct rtnl_link_ops *ops, char *devname)
{
struct ip_tunnel_net *itn = net_generic(net, ip_tnl_net_id);
@@ -1196,7 +1196,7 @@ void ip_tunnel_uninit(struct net_device *dev)
EXPORT_SYMBOL_GPL(ip_tunnel_uninit);
/* Do least required initialization, rest of init is done in tunnel_init call */
-void ip_tunnel_setup(struct net_device *dev, int net_id)
+void ip_tunnel_setup(struct net_device *dev, unsigned int net_id)
{
struct ip_tunnel *tunnel = netdev_priv(dev);
tunnel->ip_tnl_net_id = net_id;
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 5d7944f..8b14f14 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -46,7 +46,7 @@
static struct rtnl_link_ops vti_link_ops __read_mostly;
-static int vti_net_id __read_mostly;
+static unsigned int vti_net_id __read_mostly;
static int vti_tunnel_init(struct net_device *dev);
static int vti_input(struct sk_buff *skb, int nexthdr, __be32 spi,
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index c939258..79489f0 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -121,7 +121,7 @@ static bool log_ecn_error = true;
module_param(log_ecn_error, bool, 0644);
MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
-static int ipip_net_id __read_mostly;
+static unsigned int ipip_net_id __read_mostly;
static int ipip_tunnel_init(struct net_device *dev);
static struct rtnl_link_ops ipip_link_ops __read_mostly;
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 4a9e6db..e6e206f 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -62,7 +62,7 @@ struct clusterip_config {
static const struct file_operations clusterip_proc_fops;
#endif
-static int clusterip_net_id __read_mostly;
+static unsigned int clusterip_net_id __read_mostly;
struct clusterip_net {
struct list_head configs;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 710bc79..75b6108 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -64,7 +64,7 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
#define IP6_GRE_HASH_SIZE_SHIFT 5
#define IP6_GRE_HASH_SIZE (1 << IP6_GRE_HASH_SIZE_SHIFT)
-static int ip6gre_net_id __read_mostly;
+static unsigned int ip6gre_net_id __read_mostly;
struct ip6gre_net {
struct ip6_tnl __rcu *tunnels[4][IP6_GRE_HASH_SIZE];
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 259e850..d3c619ed 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -83,7 +83,7 @@ static int ip6_tnl_dev_init(struct net_device *dev);
static void ip6_tnl_dev_setup(struct net_device *dev);
static struct rtnl_link_ops ip6_link_ops __read_mostly;
-static int ip6_tnl_net_id __read_mostly;
+static unsigned int ip6_tnl_net_id __read_mostly;
struct ip6_tnl_net {
/* the IPv6 tunnel fallback device */
struct net_device *fb_tnl_dev;
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index af3f0e0..c476bb8 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -64,7 +64,7 @@ static int vti6_dev_init(struct net_device *dev);
static void vti6_dev_setup(struct net_device *dev);
static struct rtnl_link_ops vti6_link_ops __read_mostly;
-static int vti6_net_id __read_mostly;
+static unsigned int vti6_net_id __read_mostly;
struct vti6_net {
/* the vti6 tunnel fallback device */
struct net_device *fb_tnl_dev;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index dc7a344..0355231 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -76,7 +76,7 @@ static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
__be32 *v4dst);
static struct rtnl_link_ops sit_link_ops __read_mostly;
-static int sit_net_id __read_mostly;
+static unsigned int sit_net_id __read_mostly;
struct sit_net {
struct ip_tunnel __rcu *tunnels_r_l[IP6_SIT_HASH_SIZE];
struct ip_tunnel __rcu *tunnels_r[IP6_SIT_HASH_SIZE];
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index e1c0bbe..d7b731a 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -44,7 +44,7 @@ struct xfrm6_tunnel_net {
u32 spi;
};
-static int xfrm6_tunnel_net_id __read_mostly;
+static unsigned int xfrm6_tunnel_net_id __read_mostly;
static inline struct xfrm6_tunnel_net *xfrm6_tunnel_pernet(struct net *net)
{
return net_generic(net, xfrm6_tunnel_net_id);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index f9c9ecb..c6252ed 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -36,7 +36,7 @@
#define _X2KEY(x) ((x) == XFRM_INF ? 0 : (x))
#define _KEY2X(x) ((x) == 0 ? XFRM_INF : (x))
-static int pfkey_net_id __read_mostly;
+static unsigned int pfkey_net_id __read_mostly;
struct netns_pfkey {
/* List of all pfkey sockets. */
struct hlist_head table;
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 23345d2..c296f9b 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -36,7 +36,7 @@ struct ip_set_net {
bool is_destroyed; /* all sets are destroyed */
};
-static int ip_set_net_id __read_mostly;
+static unsigned int ip_set_net_id __read_mostly;
static inline struct ip_set_net *ip_set_pernet(struct net *net)
{
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 2c1b498..db40050 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -70,7 +70,7 @@ EXPORT_SYMBOL(ip_vs_get_debug_level);
#endif
EXPORT_SYMBOL(ip_vs_new_conn_out);
-static int ip_vs_net_id __read_mostly;
+static unsigned int ip_vs_net_id __read_mostly;
/* netns cnt used for uniqueness */
static atomic_t ipvs_netns_cnt = ATOMIC_INIT(0);
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index ac89769..073b047 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -385,7 +385,7 @@ dccp_state_table[CT_DCCP_ROLE_MAX + 1][DCCP_PKT_SYNCACK + 1][CT_DCCP_MAX + 1] =
};
/* this module per-net specifics */
-static int dccp_net_id __read_mostly;
+static unsigned int dccp_net_id __read_mostly;
struct dccp_net {
struct nf_proto_net pn;
int dccp_loose;
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index ff405c9..87bb40a 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -53,7 +53,7 @@ static unsigned int gre_timeouts[GRE_CT_MAX] = {
[GRE_CT_REPLIED] = 180*HZ,
};
-static int proto_gre_net_id __read_mostly;
+static unsigned int proto_gre_net_id __read_mostly;
struct netns_proto_gre {
struct nf_proto_net nf;
rwlock_t keymap_lock;
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 17c0ade..d096c2d 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -144,7 +144,7 @@ static const u8 sctp_conntracks[2][11][SCTP_CONNTRACK_MAX] = {
}
};
-static int sctp_net_id __read_mostly;
+static unsigned int sctp_net_id __read_mostly;
struct sctp_net {
struct nf_proto_net pn;
unsigned int timeouts[SCTP_CONNTRACK_MAX];
diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c
index 8cdb4b1..7808604 100644
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -35,7 +35,7 @@ static unsigned int udplite_timeouts[UDPLITE_CT_MAX] = {
[UDPLITE_CT_REPLIED] = 180*HZ,
};
-static int udplite_net_id __read_mostly;
+static unsigned int udplite_net_id __read_mostly;
struct udplite_net {
struct nf_proto_net pn;
unsigned int timeouts[UDPLITE_CT_MAX];
diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c
index c8a4a48..7c6d1fb 100644
--- a/net/netfilter/nf_synproxy_core.c
+++ b/net/netfilter/nf_synproxy_core.c
@@ -24,7 +24,7 @@
#include <net/netfilter/nf_conntrack_synproxy.h>
#include <net/netfilter/nf_conntrack_zones.h>
-int synproxy_net_id;
+unsigned int synproxy_net_id;
EXPORT_SYMBOL_GPL(synproxy_net_id);
bool
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 7435505..763cb4d 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -80,7 +80,7 @@ struct nfulnl_instance {
#define INSTANCE_BUCKETS 16
-static int nfnl_log_net_id __read_mostly;
+static unsigned int nfnl_log_net_id __read_mostly;
struct nfnl_log_net {
spinlock_t instances_lock;
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 1e33115b..be7627b 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -77,7 +77,7 @@ struct nfqnl_instance {
typedef int (*nfqnl_cmpfn)(struct nf_queue_entry *, unsigned long);
-static int nfnl_queue_net_id __read_mostly;
+static unsigned int nfnl_queue_net_id __read_mostly;
#define INSTANCE_BUCKETS 16
struct nfnl_queue_net {
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index b89b688..1006340 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -49,7 +49,7 @@ struct hashlimit_net {
struct proc_dir_entry *ip6t_hashlimit;
};
-static int hashlimit_net_id;
+static unsigned int hashlimit_net_id;
static inline struct hashlimit_net *hashlimit_pernet(struct net *net)
{
return net_generic(net, hashlimit_net_id);
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index bf25000..1d89a4e 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -95,7 +95,7 @@ struct recent_net {
#endif
};
-static int recent_net_id __read_mostly;
+static unsigned int recent_net_id __read_mostly;
static inline struct recent_net *recent_pernet(struct net *net)
{
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 1402f1b..2d4c4d3 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -58,7 +58,7 @@
#include "vport-internal_dev.h"
#include "vport-netdev.h"
-int ovs_net_id __read_mostly;
+unsigned int ovs_net_id __read_mostly;
static struct genl_family dp_packet_genl_family;
static struct genl_family dp_flow_genl_family;
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index ab85c1c..1c6e937 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -144,7 +144,7 @@ struct ovs_net {
bool xt_label;
};
-extern int ovs_net_id;
+extern unsigned int ovs_net_id;
void ovs_lock(void);
void ovs_unlock(void);
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index a586800..2cb4c5d 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -44,7 +44,7 @@ struct phonet_net {
struct phonet_routes routes;
};
-static int phonet_net_id __read_mostly;
+static unsigned int phonet_net_id __read_mostly;
static struct phonet_net *phonet_pernet(struct net *net)
{
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index 3296a6a..1a0399d 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -366,7 +366,7 @@ struct rds_transport rds_tcp_transport = {
.t_mp_capable = 1,
};
-static int rds_tcp_netid;
+static unsigned int rds_tcp_netid;
/* per-network namespace private data for this module */
struct rds_tcp_net {
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index 9ff06cf..1aa4ecf 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -33,7 +33,7 @@ struct tcf_bpf_cfg {
bool is_ebpf;
};
-static int bpf_net_id;
+static unsigned int bpf_net_id;
static struct tc_action_ops act_bpf_ops;
static int tcf_bpf(struct sk_buff *skb, const struct tc_action *act,
diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index eae07a2..ab80629 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -30,7 +30,7 @@
#define CONNMARK_TAB_MASK 3
-static int connmark_net_id;
+static unsigned int connmark_net_id;
static struct tc_action_ops act_connmark_ops;
static int tcf_connmark(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index e0defce..a0edd80 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -42,7 +42,7 @@ static const struct nla_policy csum_policy[TCA_CSUM_MAX + 1] = {
[TCA_CSUM_PARMS] = { .len = sizeof(struct tc_csum), },
};
-static int csum_net_id;
+static unsigned int csum_net_id;
static struct tc_action_ops act_csum_ops;
static int tcf_csum_init(struct net *net, struct nlattr *nla,
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index e0aa30f..e6c874a 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -25,7 +25,7 @@
#define GACT_TAB_MASK 15
-static int gact_net_id;
+static unsigned int gact_net_id;
static struct tc_action_ops act_gact_ops;
#ifdef CONFIG_GACT_PROB
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c
index 95c463c..80b848d 100644
--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -35,7 +35,7 @@
#define IFE_TAB_MASK 15
-static int ife_net_id;
+static unsigned int ife_net_id;
static int max_metacnt = IFE_META_MAX + 1;
static struct tc_action_ops act_ife_ops;
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index ce7ea6c..992ef8d 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -30,10 +30,10 @@
#define IPT_TAB_MASK 15
-static int ipt_net_id;
+static unsigned int ipt_net_id;
static struct tc_action_ops act_ipt_ops;
-static int xt_net_id;
+static unsigned int xt_net_id;
static struct tc_action_ops act_xt_ops;
static int ipt_init_target(struct xt_entry_target *t, char *table,
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 6073a11..b2d417b 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -70,7 +70,7 @@ static const struct nla_policy mirred_policy[TCA_MIRRED_MAX + 1] = {
[TCA_MIRRED_PARMS] = { .len = sizeof(struct tc_mirred) },
};
-static int mirred_net_id;
+static unsigned int mirred_net_id;
static struct tc_action_ops act_mirred_ops;
static bool dev_is_mac_header_xmit(const struct net_device *dev)
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 8e8b0cc..9b6aec6 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -31,7 +31,7 @@
#define NAT_TAB_MASK 15
-static int nat_net_id;
+static unsigned int nat_net_id;
static struct tc_action_ops act_nat_ops;
static const struct nla_policy nat_policy[TCA_NAT_MAX + 1] = {
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index b54d56d..eda3220 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -25,7 +25,7 @@
#define PEDIT_TAB_MASK 15
-static int pedit_net_id;
+static unsigned int pedit_net_id;
static struct tc_action_ops act_pedit_ops;
static const struct nla_policy pedit_policy[TCA_PEDIT_MAX + 1] = {
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index d1bd248..c990b73 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -55,7 +55,7 @@ struct tc_police_compat {
/* Each policer is serialized by its individual spinlock */
-static int police_net_id;
+static unsigned int police_net_id;
static struct tc_action_ops act_police_ops;
static int tcf_act_police_walker(struct net *net, struct sk_buff *skb,
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 289af6f..823a73a 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -26,7 +26,7 @@
#define SIMP_TAB_MASK 7
-static int simp_net_id;
+static unsigned int simp_net_id;
static struct tc_action_ops act_simp_ops;
#define SIMP_MAX_DATA 32
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 024f3a3..06ccae3 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -29,7 +29,7 @@
#define SKBEDIT_TAB_MASK 15
-static int skbedit_net_id;
+static unsigned int skbedit_net_id;
static struct tc_action_ops act_skbedit_ops;
static int tcf_skbedit(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c
index e7d9638..3b7074e 100644
--- a/net/sched/act_skbmod.c
+++ b/net/sched/act_skbmod.c
@@ -22,7 +22,7 @@
#define SKBMOD_TAB_MASK 15
-static int skbmod_net_id;
+static unsigned int skbmod_net_id;
static struct tc_action_ops act_skbmod_ops;
#define MAX_EDIT_LEN ETH_HLEN
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index edc720f..7af7125 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -22,7 +22,7 @@
#define TUNNEL_KEY_TAB_MASK 15
-static int tunnel_key_net_id;
+static unsigned int tunnel_key_net_id;
static struct tc_action_ops act_tunnel_key_ops;
static int tunnel_key_act(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index b57fcbc..19e0dba 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -21,7 +21,7 @@
#define VLAN_TAB_MASK 15
-static int vlan_net_id;
+static unsigned int vlan_net_id;
static struct tc_action_ops act_vlan_ops;
static int tcf_vlan(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
index df58268..394ce52 100644
--- a/net/sunrpc/netns.h
+++ b/net/sunrpc/netns.h
@@ -34,7 +34,7 @@ struct sunrpc_net {
struct proc_dir_entry *use_gssp_proc;
};
-extern int sunrpc_net_id;
+extern unsigned int sunrpc_net_id;
int ip_map_cache_create(struct net *);
void ip_map_cache_destroy(struct net *);
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index ee5d3d2..d1c330a 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -24,7 +24,7 @@
#include "netns.h"
-int sunrpc_net_id;
+unsigned int sunrpc_net_id;
EXPORT_SYMBOL_GPL(sunrpc_net_id);
static __net_init int sunrpc_init_net(struct net *net)
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 236b043..0b982d0 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -47,7 +47,7 @@
#include <linux/module.h>
/* configurable TIPC parameters */
-int tipc_net_id __read_mostly;
+unsigned int tipc_net_id __read_mostly;
int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */
static int __net_init tipc_init_net(struct net *net)
diff --git a/net/tipc/core.h b/net/tipc/core.h
index a1845fb..5cc5398 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -74,7 +74,7 @@ struct tipc_monitor;
#define MAX_BEARERS 3
#define TIPC_DEF_MON_THRESHOLD 32
-extern int tipc_net_id __read_mostly;
+extern unsigned int tipc_net_id __read_mostly;
extern int sysctl_tipc_rmem[3] __read_mostly;
extern int sysctl_tipc_named_timeout __read_mostly;