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Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c31
-rw-r--r--net/core/flow.c13
-rw-r--r--net/core/flow_dissector.c2
-rw-r--r--net/core/net-procfs.c3
-rw-r--r--net/core/net-sysfs.c5
-rw-r--r--net/core/net_namespace.c2
-rw-r--r--net/core/rtnetlink.c10
-rw-r--r--net/core/scm.c4
-rw-r--r--net/core/sock.c2
-rw-r--r--net/core/sock_diag.c27
10 files changed, 53 insertions, 46 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 17bc535115d3..13e6447f0398 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -658,11 +658,10 @@ __setup("netdev=", netdev_boot_setup);
struct net_device *__dev_get_by_name(struct net *net, const char *name)
{
- struct hlist_node *p;
struct net_device *dev;
struct hlist_head *head = dev_name_hash(net, name);
- hlist_for_each_entry(dev, p, head, name_hlist)
+ hlist_for_each_entry(dev, head, name_hlist)
if (!strncmp(dev->name, name, IFNAMSIZ))
return dev;
@@ -684,11 +683,10 @@ EXPORT_SYMBOL(__dev_get_by_name);
struct net_device *dev_get_by_name_rcu(struct net *net, const char *name)
{
- struct hlist_node *p;
struct net_device *dev;
struct hlist_head *head = dev_name_hash(net, name);
- hlist_for_each_entry_rcu(dev, p, head, name_hlist)
+ hlist_for_each_entry_rcu(dev, head, name_hlist)
if (!strncmp(dev->name, name, IFNAMSIZ))
return dev;
@@ -735,11 +733,10 @@ EXPORT_SYMBOL(dev_get_by_name);
struct net_device *__dev_get_by_index(struct net *net, int ifindex)
{
- struct hlist_node *p;
struct net_device *dev;
struct hlist_head *head = dev_index_hash(net, ifindex);
- hlist_for_each_entry(dev, p, head, index_hlist)
+ hlist_for_each_entry(dev, head, index_hlist)
if (dev->ifindex == ifindex)
return dev;
@@ -760,11 +757,10 @@ EXPORT_SYMBOL(__dev_get_by_index);
struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex)
{
- struct hlist_node *p;
struct net_device *dev;
struct hlist_head *head = dev_index_hash(net, ifindex);
- hlist_for_each_entry_rcu(dev, p, head, index_hlist)
+ hlist_for_each_entry_rcu(dev, head, index_hlist)
if (dev->ifindex == ifindex)
return dev;
@@ -1549,7 +1545,6 @@ void net_enable_timestamp(void)
return;
}
#endif
- WARN_ON(in_interrupt());
static_key_slow_inc(&netstamp_needed);
}
EXPORT_SYMBOL(net_enable_timestamp);
@@ -1629,7 +1624,6 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
}
skb_orphan(skb);
- nf_reset(skb);
if (unlikely(!is_skb_forwardable(dev, skb))) {
atomic_long_inc(&dev->rx_dropped);
@@ -1882,8 +1876,10 @@ int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask, u16 index)
if (!new_dev_maps)
new_dev_maps = kzalloc(maps_sz, GFP_KERNEL);
- if (!new_dev_maps)
+ if (!new_dev_maps) {
+ mutex_unlock(&xps_map_mutex);
return -ENOMEM;
+ }
map = dev_maps ? xmap_dereference(dev_maps->cpu_map[cpu]) :
NULL;
@@ -2221,9 +2217,9 @@ struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb,
struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
struct packet_offload *ptype;
__be16 type = skb->protocol;
+ int vlan_depth = ETH_HLEN;
while (type == htons(ETH_P_8021Q)) {
- int vlan_depth = ETH_HLEN;
struct vlan_hdr *vh;
if (unlikely(!pskb_may_pull(skb, vlan_depth + VLAN_HLEN)))
@@ -3317,6 +3313,7 @@ int netdev_rx_handler_register(struct net_device *dev,
if (dev->rx_handler)
return -EBUSY;
+ /* Note: rx_handler_data must be set before rx_handler */
rcu_assign_pointer(dev->rx_handler_data, rx_handler_data);
rcu_assign_pointer(dev->rx_handler, rx_handler);
@@ -3337,6 +3334,11 @@ void netdev_rx_handler_unregister(struct net_device *dev)
ASSERT_RTNL();
RCU_INIT_POINTER(dev->rx_handler, NULL);
+ /* a reader seeing a non NULL rx_handler in a rcu_read_lock()
+ * section has a guarantee to see a non NULL rx_handler_data
+ * as well.
+ */
+ synchronize_net();
RCU_INIT_POINTER(dev->rx_handler_data, NULL);
}
EXPORT_SYMBOL_GPL(netdev_rx_handler_unregister);
@@ -3446,6 +3448,7 @@ ncls:
}
switch (rx_handler(&skb)) {
case RX_HANDLER_CONSUMED:
+ ret = NET_RX_SUCCESS;
goto unlock;
case RX_HANDLER_ANOTHER:
goto another_round;
@@ -4105,7 +4108,7 @@ static void net_rx_action(struct softirq_action *h)
* Allow this to run for 2 jiffies since which will allow
* an average latency of 1.5/HZ.
*/
- if (unlikely(budget <= 0 || time_after(jiffies, time_limit)))
+ if (unlikely(budget <= 0 || time_after_eq(jiffies, time_limit)))
goto softnet_break;
local_irq_enable();
@@ -4782,7 +4785,7 @@ EXPORT_SYMBOL(dev_set_mac_address);
/**
* dev_change_carrier - Change device carrier
* @dev: device
- * @new_carries: new value
+ * @new_carrier: new value
*
* Change device carrier
*/
diff --git a/net/core/flow.c b/net/core/flow.c
index 43f7495df27a..2bfd081c59f7 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -132,14 +132,14 @@ static void __flow_cache_shrink(struct flow_cache *fc,
int shrink_to)
{
struct flow_cache_entry *fle;
- struct hlist_node *entry, *tmp;
+ struct hlist_node *tmp;
LIST_HEAD(gc_list);
int i, deleted = 0;
for (i = 0; i < flow_cache_hash_size(fc); i++) {
int saved = 0;
- hlist_for_each_entry_safe(fle, entry, tmp,
+ hlist_for_each_entry_safe(fle, tmp,
&fcp->hash_table[i], u.hlist) {
if (saved < shrink_to &&
flow_entry_valid(fle)) {
@@ -211,7 +211,6 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
struct flow_cache *fc = &flow_cache_global;
struct flow_cache_percpu *fcp;
struct flow_cache_entry *fle, *tfle;
- struct hlist_node *entry;
struct flow_cache_object *flo;
size_t keysize;
unsigned int hash;
@@ -235,7 +234,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
flow_new_hash_rnd(fc, fcp);
hash = flow_hash_code(fc, fcp, key, keysize);
- hlist_for_each_entry(tfle, entry, &fcp->hash_table[hash], u.hlist) {
+ hlist_for_each_entry(tfle, &fcp->hash_table[hash], u.hlist) {
if (tfle->net == net &&
tfle->family == family &&
tfle->dir == dir &&
@@ -301,13 +300,13 @@ static void flow_cache_flush_tasklet(unsigned long data)
struct flow_cache *fc = info->cache;
struct flow_cache_percpu *fcp;
struct flow_cache_entry *fle;
- struct hlist_node *entry, *tmp;
+ struct hlist_node *tmp;
LIST_HEAD(gc_list);
int i, deleted = 0;
fcp = this_cpu_ptr(fc->percpu);
for (i = 0; i < flow_cache_hash_size(fc); i++) {
- hlist_for_each_entry_safe(fle, entry, tmp,
+ hlist_for_each_entry_safe(fle, tmp,
&fcp->hash_table[i], u.hlist) {
if (flow_entry_valid(fle))
continue;
@@ -329,7 +328,7 @@ static void flow_cache_flush_per_cpu(void *data)
struct flow_flush_info *info = data;
struct tasklet_struct *tasklet;
- tasklet = this_cpu_ptr(&info->cache->percpu->flush_tasklet);
+ tasklet = &this_cpu_ptr(info->cache->percpu)->flush_tasklet;
tasklet->data = (unsigned long)info;
tasklet_schedule(tasklet);
}
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 9d4c7201400d..e187bf06d673 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -140,6 +140,8 @@ ipv6:
flow->ports = *ports;
}
+ flow->thoff = (u16) nhoff;
+
return true;
}
EXPORT_SYMBOL(skb_flow_dissect);
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 0f6bb6f8d391..3174f1998ee6 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -16,12 +16,11 @@ static inline struct net_device *dev_from_same_bucket(struct seq_file *seq, loff
{
struct net *net = seq_file_net(seq);
struct net_device *dev;
- struct hlist_node *p;
struct hlist_head *h;
unsigned int count = 0, offset = get_offset(*pos);
h = &net->dev_name_head[get_bucket(*pos)];
- hlist_for_each_entry_rcu(dev, p, h, name_hlist) {
+ hlist_for_each_entry_rcu(dev, h, name_hlist) {
if (++count == offset)
return dev;
}
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index a5b89a6fec6d..7427ab5e27d8 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -21,6 +21,7 @@
#include <linux/vmalloc.h>
#include <linux/export.h>
#include <linux/jiffies.h>
+#include <linux/pm_runtime.h>
#include "net-sysfs.h"
@@ -1257,6 +1258,8 @@ void netdev_unregister_kobject(struct net_device * net)
remove_queue_kobjects(net);
+ pm_runtime_set_memalloc_noio(dev, false);
+
device_del(dev);
}
@@ -1301,6 +1304,8 @@ int netdev_register_kobject(struct net_device *net)
return error;
}
+ pm_runtime_set_memalloc_noio(dev, true);
+
return error;
}
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 8acce01b6dab..80e271d9e64b 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -344,7 +344,7 @@ struct net *get_net_ns_by_fd(int fd)
if (IS_ERR(file))
return ERR_CAST(file);
- ei = PROC_I(file->f_dentry->d_inode);
+ ei = PROC_I(file_inode(file));
if (ei->ns_ops == &netns_operations)
net = get_net(ei->ns);
else
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index d8aa20f6a46e..b65441da74ab 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -496,8 +496,10 @@ static int rtnl_link_fill(struct sk_buff *skb, const struct net_device *dev)
}
if (ops->fill_info) {
data = nla_nest_start(skb, IFLA_INFO_DATA);
- if (data == NULL)
+ if (data == NULL) {
+ err = -EMSGSIZE;
goto err_cancel_link;
+ }
err = ops->fill_info(skb, dev);
if (err < 0)
goto err_cancel_data;
@@ -979,6 +981,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
* report anything.
*/
ivi.spoofchk = -1;
+ memset(ivi.mac, 0, sizeof(ivi.mac));
if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
break;
vf_mac.vf =
@@ -1060,7 +1063,6 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
int idx = 0, s_idx;
struct net_device *dev;
struct hlist_head *head;
- struct hlist_node *node;
struct nlattr *tb[IFLA_MAX+1];
u32 ext_filter_mask = 0;
@@ -1080,7 +1082,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
idx = 0;
head = &net->dev_index_head[h];
- hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
+ hlist_for_each_entry_rcu(dev, head, index_hlist) {
if (idx < s_idx)
goto cont;
if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
@@ -2621,7 +2623,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
struct rtattr *attr = (void *)nlh + NLMSG_ALIGN(min_len);
while (RTA_OK(attr, attrlen)) {
- unsigned int flavor = attr->rta_type;
+ unsigned int flavor = attr->rta_type & NLA_TYPE_MASK;
if (flavor) {
if (flavor > rta_max[sz_idx])
return -EINVAL;
diff --git a/net/core/scm.c b/net/core/scm.c
index 905dcc6ad1e3..2dc6cdaaae8a 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -24,6 +24,7 @@
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/security.h>
+#include <linux/pid_namespace.h>
#include <linux/pid.h>
#include <linux/nsproxy.h>
#include <linux/slab.h>
@@ -52,7 +53,8 @@ static __inline__ int scm_check_creds(struct ucred *creds)
if (!uid_valid(uid) || !gid_valid(gid))
return -EINVAL;
- if ((creds->pid == task_tgid_vnr(current) || nsown_capable(CAP_SYS_ADMIN)) &&
+ if ((creds->pid == task_tgid_vnr(current) ||
+ ns_capable(current->nsproxy->pid_ns->user_ns, CAP_SYS_ADMIN)) &&
((uid_eq(uid, cred->uid) || uid_eq(uid, cred->euid) ||
uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) &&
((gid_eq(gid, cred->gid) || gid_eq(gid, cred->egid) ||
diff --git a/net/core/sock.c b/net/core/sock.c
index fe96c5d34299..b261a7977746 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -186,8 +186,10 @@ void mem_cgroup_sockets_destroy(struct mem_cgroup *memcg)
static struct lock_class_key af_family_keys[AF_MAX];
static struct lock_class_key af_family_slock_keys[AF_MAX];
+#if defined(CONFIG_MEMCG_KMEM)
struct static_key memcg_socket_limit_enabled;
EXPORT_SYMBOL(memcg_socket_limit_enabled);
+#endif
/*
* Make lock validator output more readable. (we pre-construct these
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 602cd637182e..a29e90cf36b7 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -97,21 +97,6 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
}
EXPORT_SYMBOL_GPL(sock_diag_unregister);
-static const inline struct sock_diag_handler *sock_diag_lock_handler(int family)
-{
- if (sock_diag_handlers[family] == NULL)
- request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
- NETLINK_SOCK_DIAG, family);
-
- mutex_lock(&sock_diag_table_mutex);
- return sock_diag_handlers[family];
-}
-
-static inline void sock_diag_unlock_handler(const struct sock_diag_handler *h)
-{
- mutex_unlock(&sock_diag_table_mutex);
-}
-
static int __sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
int err;
@@ -121,12 +106,20 @@ static int __sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
if (nlmsg_len(nlh) < sizeof(*req))
return -EINVAL;
- hndl = sock_diag_lock_handler(req->sdiag_family);
+ if (req->sdiag_family >= AF_MAX)
+ return -EINVAL;
+
+ if (sock_diag_handlers[req->sdiag_family] == NULL)
+ request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
+ NETLINK_SOCK_DIAG, req->sdiag_family);
+
+ mutex_lock(&sock_diag_table_mutex);
+ hndl = sock_diag_handlers[req->sdiag_family];
if (hndl == NULL)
err = -ENOENT;
else
err = hndl->dump(skb, nlh);
- sock_diag_unlock_handler(hndl);
+ mutex_unlock(&sock_diag_table_mutex);
return err;
}
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