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Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c53
1 files changed, 34 insertions, 19 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 367a586d0c8a..1c15b189c52b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -132,6 +132,7 @@
#include <linux/hashtable.h>
#include <linux/vmalloc.h>
#include <linux/if_macvlan.h>
+#include <linux/errqueue.h>
#include "net-sysfs.h"
@@ -1085,6 +1086,7 @@ static int dev_get_valid_name(struct net *net,
*/
int dev_change_name(struct net_device *dev, const char *newname)
{
+ unsigned char old_assign_type;
char oldname[IFNAMSIZ];
int err = 0;
int ret;
@@ -1112,10 +1114,17 @@ int dev_change_name(struct net_device *dev, const char *newname)
return err;
}
+ if (oldname[0] && !strchr(oldname, '%'))
+ netdev_info(dev, "renamed from %s\n", oldname);
+
+ old_assign_type = dev->name_assign_type;
+ dev->name_assign_type = NET_NAME_RENAMED;
+
rollback:
ret = device_rename(&dev->dev, dev->name);
if (ret) {
memcpy(dev->name, oldname, IFNAMSIZ);
+ dev->name_assign_type = old_assign_type;
write_seqcount_end(&devnet_rename_seq);
return ret;
}
@@ -1144,6 +1153,8 @@ rollback:
write_seqcount_begin(&devnet_rename_seq);
memcpy(dev->name, oldname, IFNAMSIZ);
memcpy(oldname, newname, IFNAMSIZ);
+ dev->name_assign_type = old_assign_type;
+ old_assign_type = NET_NAME_RENAMED;
goto rollback;
} else {
pr_err("%s: name change rollback failed: %d\n",
@@ -2316,7 +2327,7 @@ __be16 skb_network_protocol(struct sk_buff *skb, int *depth)
*/
if (type == htons(ETH_P_8021Q) || type == htons(ETH_P_8021AD)) {
if (vlan_depth) {
- if (unlikely(WARN_ON(vlan_depth < VLAN_HLEN)))
+ if (WARN_ON(vlan_depth < VLAN_HLEN))
return 0;
vlan_depth -= VLAN_HLEN;
} else {
@@ -2414,8 +2425,8 @@ struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
skb_warn_bad_offload(skb);
- if (skb_header_cloned(skb) &&
- (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
+ err = skb_cow_head(skb, 0);
+ if (err < 0)
return ERR_PTR(err);
}
@@ -2745,8 +2756,8 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
/*
* Heuristic to force contended enqueues to serialize on a
* separate lock before trying to get qdisc main lock.
- * This permits __QDISC_STATE_RUNNING owner to get the lock more often
- * and dequeue packets faster.
+ * This permits __QDISC___STATE_RUNNING owner to get the lock more
+ * often and dequeue packets faster.
*/
contended = qdisc_is_running(q);
if (unlikely(contended))
@@ -2866,6 +2877,9 @@ static int __dev_queue_xmit(struct sk_buff *skb, void *accel_priv)
skb_reset_mac_header(skb);
+ if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_SCHED_TSTAMP))
+ __skb_tstamp_tx(skb, NULL, skb->sk, SCM_TSTAMP_SCHED);
+
/* Disable soft irqs for various locks below. Also
* stops preemption for RCU.
*/
@@ -5440,13 +5454,9 @@ int __dev_change_flags(struct net_device *dev, unsigned int flags)
*/
ret = 0;
- if ((old_flags ^ flags) & IFF_UP) { /* Bit is different ? */
+ if ((old_flags ^ flags) & IFF_UP)
ret = ((old_flags & IFF_UP) ? __dev_close : __dev_open)(dev);
- if (!ret)
- dev_set_rx_mode(dev);
- }
-
if ((flags ^ dev->gflags) & IFF_PROMISC) {
int inc = (flags & IFF_PROMISC) ? 1 : -1;
unsigned int old_flags = dev->flags;
@@ -6446,17 +6456,19 @@ void netdev_freemem(struct net_device *dev)
/**
* alloc_netdev_mqs - allocate network device
- * @sizeof_priv: size of private data to allocate space for
- * @name: device name format string
- * @setup: callback to initialize device
- * @txqs: the number of TX subqueues to allocate
- * @rxqs: the number of RX subqueues to allocate
+ * @sizeof_priv: size of private data to allocate space for
+ * @name: device name format string
+ * @name_assign_type: origin of device name
+ * @setup: callback to initialize device
+ * @txqs: the number of TX subqueues to allocate
+ * @rxqs: the number of RX subqueues to allocate
*
* Allocates a struct net_device with private data area for driver use
* and performs basic initialization. Also allocates subqueue structs
* for each queue on the device.
*/
struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
+ unsigned char name_assign_type,
void (*setup)(struct net_device *),
unsigned int txqs, unsigned int rxqs)
{
@@ -6535,6 +6547,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
#endif
strcpy(dev->name, name);
+ dev->name_assign_type = name_assign_type;
dev->group = INIT_NETDEV_GROUP;
if (!dev->ethtool_ops)
dev->ethtool_ops = &default_ethtool_ops;
@@ -6946,12 +6959,14 @@ static int __netdev_printk(const char *level, const struct net_device *dev,
if (dev && dev->dev.parent) {
r = dev_printk_emit(level[1] - '0',
dev->dev.parent,
- "%s %s %s: %pV",
+ "%s %s %s%s: %pV",
dev_driver_string(dev->dev.parent),
dev_name(dev->dev.parent),
- netdev_name(dev), vaf);
+ netdev_name(dev), netdev_reg_state(dev),
+ vaf);
} else if (dev) {
- r = printk("%s%s: %pV", level, netdev_name(dev), vaf);
+ r = printk("%s%s%s: %pV", level, netdev_name(dev),
+ netdev_reg_state(dev), vaf);
} else {
r = printk("%s(NULL net_device): %pV", level, vaf);
}
@@ -7103,7 +7118,7 @@ static void __net_exit default_device_exit_batch(struct list_head *net_list)
rtnl_lock_unregistering(net_list);
list_for_each_entry(net, net_list, exit_list) {
for_each_netdev_reverse(net, dev) {
- if (dev->rtnl_link_ops)
+ if (dev->rtnl_link_ops && dev->rtnl_link_ops->dellink)
dev->rtnl_link_ops->dellink(dev, &dev_kill_list);
else
unregister_netdevice_queue(dev, &dev_kill_list);
generated by cgit (git 2.34.1) at 2024-05-23 01:42:40 +0000