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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-27 09:21:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-27 09:21:00 -0700
commita376bca61096c7a79393e8125b7ad4757ccff19c (patch)
tree87bb6aeff773e334a620b3a9aed6b2771cfb9bca
parent1a041a23da7c77b53c71fe11b4f940388bee37b1 (diff)
parent5447080cfa3c77154498dfbf225367ac85b4c2b5 (diff)
downloadlinux-2.6.34-ux500-a376bca61096c7a79393e8125b7ad4757ccff19c.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: s2io: fixing DBG_PRINT() macro ath9k: fix dma direction for map/unmap in ath_rx_tasklet net: dev_forward_skb should call nf_reset net sched: fix race in mirred device removal tun: avoid BUG, dump packet on GSO errors bonding: set device in RLB ARP packet handler wimax/i2400m: Add PID & VID for Intel WiMAX 6250 ipv6: Don't add routes to ipv6 disabled interfaces. net: Fix skb_copy_expand() handling of ->csum_start net: Fix corruption of skb csum field in pskb_expand_head() of net/core/skbuff.c macvtap: Limit packet queue length ixgbe/igb: catch invalid VF settings bnx2x: Advance a module version bnx2x: Protect statistics ramrod and sequence number bnx2x: Protect a SM state change wireless: use netif_rx_ni in ieee80211_send_layer2_update
-rw-r--r--drivers/net/bnx2x.h4
-rw-r--r--drivers/net/bnx2x_main.c42
-rw-r--r--drivers/net/bonding/bond_alb.c2
-rw-r--r--drivers/net/igb/igb_main.c9
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c9
-rw-r--r--drivers/net/macvlan.c10
-rw-r--r--drivers/net/macvtap.c18
-rw-r--r--drivers/net/s2io.h2
-rw-r--r--drivers/net/tun.c14
-rw-r--r--drivers/net/wimax/i2400m/i2400m-usb.h1
-rw-r--r--drivers/net/wimax/i2400m/usb.c2
-rw-r--r--drivers/net/wireless/ath/ath9k/recv.c4
-rw-r--r--include/linux/if_macvlan.h2
-rw-r--r--include/net/tc_act/tc_mirred.h1
-rw-r--r--net/core/dev.c1
-rw-r--r--net/core/skbuff.c7
-rw-r--r--net/ipv6/addrconf.c14
-rw-r--r--net/mac80211/cfg.c2
-rw-r--r--net/sched/act_mirred.c43
19 files changed, 151 insertions, 36 deletions
diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h
index 8bd23687c53..bb0872a6331 100644
--- a/drivers/net/bnx2x.h
+++ b/drivers/net/bnx2x.h
@@ -1062,6 +1062,10 @@ struct bnx2x {
/* used to synchronize stats collecting */
int stats_state;
+
+ /* used for synchronization of concurrent threads statistics handling */
+ spinlock_t stats_lock;
+
/* used by dmae command loader */
struct dmae_command stats_dmae;
int executer_idx;
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 57ff5b3bcce..46167c08172 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -57,8 +57,8 @@
#include "bnx2x_init_ops.h"
#include "bnx2x_dump.h"
-#define DRV_MODULE_VERSION "1.52.53-1"
-#define DRV_MODULE_RELDATE "2010/18/04"
+#define DRV_MODULE_VERSION "1.52.53-2"
+#define DRV_MODULE_RELDATE "2010/21/07"
#define BNX2X_BC_VER 0x040200
#include <linux/firmware.h>
@@ -3789,6 +3789,8 @@ static void bnx2x_storm_stats_post(struct bnx2x *bp)
struct eth_query_ramrod_data ramrod_data = {0};
int i, rc;
+ spin_lock_bh(&bp->stats_lock);
+
ramrod_data.drv_counter = bp->stats_counter++;
ramrod_data.collect_port = bp->port.pmf ? 1 : 0;
for_each_queue(bp, i)
@@ -3802,6 +3804,8 @@ static void bnx2x_storm_stats_post(struct bnx2x *bp)
bp->spq_left++;
bp->stats_pending = 1;
}
+
+ spin_unlock_bh(&bp->stats_lock);
}
}
@@ -4367,6 +4371,14 @@ static int bnx2x_storm_stats_update(struct bnx2x *bp)
struct host_func_stats *fstats = bnx2x_sp(bp, func_stats);
struct bnx2x_eth_stats *estats = &bp->eth_stats;
int i;
+ u16 cur_stats_counter;
+
+ /* Make sure we use the value of the counter
+ * used for sending the last stats ramrod.
+ */
+ spin_lock_bh(&bp->stats_lock);
+ cur_stats_counter = bp->stats_counter - 1;
+ spin_unlock_bh(&bp->stats_lock);
memcpy(&(fstats->total_bytes_received_hi),
&(bnx2x_sp(bp, func_stats_base)->total_bytes_received_hi),
@@ -4394,25 +4406,22 @@ static int bnx2x_storm_stats_update(struct bnx2x *bp)
u32 diff;
/* are storm stats valid? */
- if ((u16)(le16_to_cpu(xclient->stats_counter) + 1) !=
- bp->stats_counter) {
+ if (le16_to_cpu(xclient->stats_counter) != cur_stats_counter) {
DP(BNX2X_MSG_STATS, "[%d] stats not updated by xstorm"
" xstorm counter (0x%x) != stats_counter (0x%x)\n",
- i, xclient->stats_counter, bp->stats_counter);
+ i, xclient->stats_counter, cur_stats_counter + 1);
return -1;
}
- if ((u16)(le16_to_cpu(tclient->stats_counter) + 1) !=
- bp->stats_counter) {
+ if (le16_to_cpu(tclient->stats_counter) != cur_stats_counter) {
DP(BNX2X_MSG_STATS, "[%d] stats not updated by tstorm"
" tstorm counter (0x%x) != stats_counter (0x%x)\n",
- i, tclient->stats_counter, bp->stats_counter);
+ i, tclient->stats_counter, cur_stats_counter + 1);
return -2;
}
- if ((u16)(le16_to_cpu(uclient->stats_counter) + 1) !=
- bp->stats_counter) {
+ if (le16_to_cpu(uclient->stats_counter) != cur_stats_counter) {
DP(BNX2X_MSG_STATS, "[%d] stats not updated by ustorm"
" ustorm counter (0x%x) != stats_counter (0x%x)\n",
- i, uclient->stats_counter, bp->stats_counter);
+ i, uclient->stats_counter, cur_stats_counter + 1);
return -4;
}
@@ -4849,16 +4858,18 @@ static const struct {
static void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
{
- enum bnx2x_stats_state state = bp->stats_state;
+ enum bnx2x_stats_state state;
if (unlikely(bp->panic))
return;
- bnx2x_stats_stm[state][event].action(bp);
+ /* Protect a state change flow */
+ spin_lock_bh(&bp->stats_lock);
+ state = bp->stats_state;
bp->stats_state = bnx2x_stats_stm[state][event].next_state;
+ spin_unlock_bh(&bp->stats_lock);
- /* Make sure the state has been "changed" */
- smp_wmb();
+ bnx2x_stats_stm[state][event].action(bp);
if ((event != STATS_EVENT_UPDATE) || netif_msg_timer(bp))
DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
@@ -9908,6 +9919,7 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
mutex_init(&bp->port.phy_mutex);
mutex_init(&bp->fw_mb_mutex);
+ spin_lock_init(&bp->stats_lock);
#ifdef BCM_CNIC
mutex_init(&bp->cnic_mutex);
#endif
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index df483076eda..8d7dfd2f1e9 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -822,7 +822,7 @@ static int rlb_initialize(struct bonding *bond)
/*initialize packet type*/
pk_type->type = cpu_to_be16(ETH_P_ARP);
- pk_type->dev = NULL;
+ pk_type->dev = bond->dev;
pk_type->func = rlb_arp_recv;
/* register to receive ARPs */
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3881918f538..cea37e0837f 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1722,6 +1722,15 @@ static int __devinit igb_probe(struct pci_dev *pdev,
u16 eeprom_apme_mask = IGB_EEPROM_APME;
u32 part_num;
+ /* Catch broken hardware that put the wrong VF device ID in
+ * the PCIe SR-IOV capability.
+ */
+ if (pdev->is_virtfn) {
+ WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n",
+ pci_name(pdev), pdev->vendor, pdev->device);
+ return -EINVAL;
+ }
+
err = pci_enable_device_mem(pdev);
if (err)
return err;
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 7b5d9764f31..74d9b6df302 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -6492,6 +6492,15 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
#endif
u32 part_num, eec;
+ /* Catch broken hardware that put the wrong VF device ID in
+ * the PCIe SR-IOV capability.
+ */
+ if (pdev->is_virtfn) {
+ WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n",
+ pci_name(pdev), pdev->vendor, pdev->device);
+ return -EINVAL;
+ }
+
err = pci_enable_device_mem(pdev);
if (err)
return err;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 87e8d4cb405..f15fe2cf72a 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -499,7 +499,7 @@ static const struct net_device_ops macvlan_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
};
-static void macvlan_setup(struct net_device *dev)
+void macvlan_common_setup(struct net_device *dev)
{
ether_setup(dev);
@@ -508,6 +508,12 @@ static void macvlan_setup(struct net_device *dev)
dev->destructor = free_netdev;
dev->header_ops = &macvlan_hard_header_ops,
dev->ethtool_ops = &macvlan_ethtool_ops;
+}
+EXPORT_SYMBOL_GPL(macvlan_common_setup);
+
+static void macvlan_setup(struct net_device *dev)
+{
+ macvlan_common_setup(dev);
dev->tx_queue_len = 0;
}
@@ -705,7 +711,6 @@ int macvlan_link_register(struct rtnl_link_ops *ops)
/* common fields */
ops->priv_size = sizeof(struct macvlan_dev);
ops->get_tx_queues = macvlan_get_tx_queues;
- ops->setup = macvlan_setup;
ops->validate = macvlan_validate;
ops->maxtype = IFLA_MACVLAN_MAX;
ops->policy = macvlan_policy;
@@ -719,6 +724,7 @@ EXPORT_SYMBOL_GPL(macvlan_link_register);
static struct rtnl_link_ops macvlan_link_ops = {
.kind = "macvlan",
+ .setup = macvlan_setup,
.newlink = macvlan_newlink,
.dellink = macvlan_dellink,
};
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index a8a94e2f6dd..ff02b836c3c 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -180,11 +180,18 @@ static int macvtap_forward(struct net_device *dev, struct sk_buff *skb)
{
struct macvtap_queue *q = macvtap_get_queue(dev, skb);
if (!q)
- return -ENOLINK;
+ goto drop;
+
+ if (skb_queue_len(&q->sk.sk_receive_queue) >= dev->tx_queue_len)
+ goto drop;
skb_queue_tail(&q->sk.sk_receive_queue, skb);
wake_up_interruptible_poll(sk_sleep(&q->sk), POLLIN | POLLRDNORM | POLLRDBAND);
- return 0;
+ return NET_RX_SUCCESS;
+
+drop:
+ kfree_skb(skb);
+ return NET_RX_DROP;
}
/*
@@ -235,8 +242,15 @@ static void macvtap_dellink(struct net_device *dev,
macvlan_dellink(dev, head);
}
+static void macvtap_setup(struct net_device *dev)
+{
+ macvlan_common_setup(dev);
+ dev->tx_queue_len = TUN_READQ_SIZE;
+}
+
static struct rtnl_link_ops macvtap_link_ops __read_mostly = {
.kind = "macvtap",
+ .setup = macvtap_setup,
.newlink = macvtap_newlink,
.dellink = macvtap_dellink,
};
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index 5e52c75892d..7f3a53dcc6e 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -65,7 +65,7 @@ static int debug_level = ERR_DBG;
/* DEBUG message print. */
#define DBG_PRINT(dbg_level, fmt, args...) do { \
- if (dbg_level >= debug_level) \
+ if (dbg_level <= debug_level) \
pr_info(fmt, ##args); \
} while (0)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 6ad6fe70631..63042596f0c 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -736,8 +736,18 @@ static __inline__ ssize_t tun_put_user(struct tun_struct *tun,
gso.gso_type = VIRTIO_NET_HDR_GSO_TCPV6;
else if (sinfo->gso_type & SKB_GSO_UDP)
gso.gso_type = VIRTIO_NET_HDR_GSO_UDP;
- else
- BUG();
+ else {
+ printk(KERN_ERR "tun: unexpected GSO type: "
+ "0x%x, gso_size %d, hdr_len %d\n",
+ sinfo->gso_type, gso.gso_size,
+ gso.hdr_len);
+ print_hex_dump(KERN_ERR, "tun: ",
+ DUMP_PREFIX_NONE,
+ 16, 1, skb->head,
+ min((int)gso.hdr_len, 64), true);
+ WARN_ON_ONCE(1);
+ return -EINVAL;
+ }
if (sinfo->gso_type & SKB_GSO_TCP_ECN)
gso.gso_type |= VIRTIO_NET_HDR_GSO_ECN;
} else
diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h
index 2d7c96d7e86..eb80243e22d 100644
--- a/drivers/net/wimax/i2400m/i2400m-usb.h
+++ b/drivers/net/wimax/i2400m/i2400m-usb.h
@@ -152,6 +152,7 @@ enum {
/* Device IDs */
USB_DEVICE_ID_I6050 = 0x0186,
USB_DEVICE_ID_I6050_2 = 0x0188,
+ USB_DEVICE_ID_I6250 = 0x0187,
};
diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c
index 0d5081d77dc..d3365ac85dd 100644
--- a/drivers/net/wimax/i2400m/usb.c
+++ b/drivers/net/wimax/i2400m/usb.c
@@ -491,6 +491,7 @@ int i2400mu_probe(struct usb_interface *iface,
switch (id->idProduct) {
case USB_DEVICE_ID_I6050:
case USB_DEVICE_ID_I6050_2:
+ case USB_DEVICE_ID_I6250:
i2400mu->i6050 = 1;
break;
default:
@@ -739,6 +740,7 @@ static
struct usb_device_id i2400mu_id_table[] = {
{ USB_DEVICE(0x8086, USB_DEVICE_ID_I6050) },
{ USB_DEVICE(0x8086, USB_DEVICE_ID_I6050_2) },
+ { USB_DEVICE(0x8086, USB_DEVICE_ID_I6250) },
{ USB_DEVICE(0x8086, 0x0181) },
{ USB_DEVICE(0x8086, 0x1403) },
{ USB_DEVICE(0x8086, 0x1405) },
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index ca6065b71b4..e3e52913d83 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -844,9 +844,9 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
int dma_type;
if (edma)
- dma_type = DMA_FROM_DEVICE;
- else
dma_type = DMA_BIDIRECTIONAL;
+ else
+ dma_type = DMA_FROM_DEVICE;
qtype = hp ? ATH9K_RX_QUEUE_HP : ATH9K_RX_QUEUE_LP;
spin_lock_bh(&sc->rx.rxbuflock);
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index 9ea047aca79..1ffaeffeff7 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -67,6 +67,8 @@ static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
}
}
+extern void macvlan_common_setup(struct net_device *dev);
+
extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[],
int (*receive)(struct sk_buff *skb),
diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h
index ceac661cdfd..cfe2943690f 100644
--- a/include/net/tc_act/tc_mirred.h
+++ b/include/net/tc_act/tc_mirred.h
@@ -9,6 +9,7 @@ struct tcf_mirred {
int tcfm_ifindex;
int tcfm_ok_push;
struct net_device *tcfm_dev;
+ struct list_head tcfm_list;
};
#define to_mirred(pc) \
container_of(pc, struct tcf_mirred, common)
diff --git a/net/core/dev.c b/net/core/dev.c
index 0ea10f849be..1f466e82ac3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1488,6 +1488,7 @@ static inline void net_timestamp_check(struct sk_buff *skb)
int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
{
skb_orphan(skb);
+ nf_reset(skb);
if (!(dev->flags & IFF_UP) ||
(skb->len > (dev->mtu + dev->hard_header_len))) {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 34432b4e96b..ce88293a34e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -843,7 +843,9 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
skb->network_header += off;
if (skb_mac_header_was_set(skb))
skb->mac_header += off;
- skb->csum_start += nhead;
+ /* Only adjust this if it actually is csum_start rather than csum */
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ skb->csum_start += nhead;
skb->cloned = 0;
skb->hdr_len = 0;
skb->nohdr = 0;
@@ -930,7 +932,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
copy_skb_header(n, skb);
off = newheadroom - oldheadroom;
- n->csum_start += off;
+ if (n->ip_summed == CHECKSUM_PARTIAL)
+ n->csum_start += off;
#ifdef NET_SKBUFF_DATA_USES_OFFSET
n->transport_header += off;
n->network_header += off;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e1a698df570..784f34d11fd 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1760,7 +1760,10 @@ static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
idev = ipv6_find_idev(dev);
if (!idev)
- return NULL;
+ return ERR_PTR(-ENOBUFS);
+
+ if (idev->cnf.disable_ipv6)
+ return ERR_PTR(-EACCES);
/* Add default multicast route */
addrconf_add_mroute(dev);
@@ -2129,8 +2132,9 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
if (!dev)
return -ENODEV;
- if ((idev = addrconf_add_dev(dev)) == NULL)
- return -ENOBUFS;
+ idev = addrconf_add_dev(dev);
+ if (IS_ERR(idev))
+ return PTR_ERR(idev);
scope = ipv6_addr_scope(pfx);
@@ -2377,7 +2381,7 @@ static void addrconf_dev_config(struct net_device *dev)
}
idev = addrconf_add_dev(dev);
- if (idev == NULL)
+ if (IS_ERR(idev))
return;
memset(&addr, 0, sizeof(struct in6_addr));
@@ -2468,7 +2472,7 @@ static void addrconf_ip6_tnl_config(struct net_device *dev)
ASSERT_RTNL();
idev = addrconf_add_dev(dev);
- if (!idev) {
+ if (IS_ERR(idev)) {
printk(KERN_DEBUG "init ip6-ip6: add_dev failed\n");
return;
}
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c7000a6ca37..67ee34f57df 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -632,7 +632,7 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
skb->dev = sta->sdata->dev;
skb->protocol = eth_type_trans(skb, sta->sdata->dev);
memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
+ netif_rx_ni(skb);
}
static void sta_apply_parameters(struct ieee80211_local *local,
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index c0b6863e3b8..1980b71c283 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -33,6 +33,7 @@
static struct tcf_common *tcf_mirred_ht[MIRRED_TAB_MASK + 1];
static u32 mirred_idx_gen;
static DEFINE_RWLOCK(mirred_lock);
+static LIST_HEAD(mirred_list);
static struct tcf_hashinfo mirred_hash_info = {
.htab = tcf_mirred_ht,
@@ -47,7 +48,9 @@ static inline int tcf_mirred_release(struct tcf_mirred *m, int bind)
m->tcf_bindcnt--;
m->tcf_refcnt--;
if(!m->tcf_bindcnt && m->tcf_refcnt <= 0) {
- dev_put(m->tcfm_dev);
+ list_del(&m->tcfm_list);
+ if (m->tcfm_dev)
+ dev_put(m->tcfm_dev);
tcf_hash_destroy(&m->common, &mirred_hash_info);
return 1;
}
@@ -134,8 +137,10 @@ static int tcf_mirred_init(struct nlattr *nla, struct nlattr *est,
m->tcfm_ok_push = ok_push;
}
spin_unlock_bh(&m->tcf_lock);
- if (ret == ACT_P_CREATED)
+ if (ret == ACT_P_CREATED) {
+ list_add(&m->tcfm_list, &mirred_list);
tcf_hash_insert(pc, &mirred_hash_info);
+ }
return ret;
}
@@ -162,9 +167,14 @@ static int tcf_mirred(struct sk_buff *skb, struct tc_action *a,
m->tcf_tm.lastuse = jiffies;
dev = m->tcfm_dev;
+ if (!dev) {
+ printk_once(KERN_NOTICE "tc mirred: target device is gone\n");
+ goto out;
+ }
+
if (!(dev->flags & IFF_UP)) {
if (net_ratelimit())
- pr_notice("tc mirred to Houston: device %s is gone!\n",
+ pr_notice("tc mirred to Houston: device %s is down\n",
dev->name);
goto out;
}
@@ -232,6 +242,28 @@ nla_put_failure:
return -1;
}
+static int mirred_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = ptr;
+ struct tcf_mirred *m;
+
+ if (event == NETDEV_UNREGISTER)
+ list_for_each_entry(m, &mirred_list, tcfm_list) {
+ if (m->tcfm_dev == dev) {
+ dev_put(dev);
+ m->tcfm_dev = NULL;
+ }
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block mirred_device_notifier = {
+ .notifier_call = mirred_device_event,
+};
+
+
static struct tc_action_ops act_mirred_ops = {
.kind = "mirred",
.hinfo = &mirred_hash_info,
@@ -252,12 +284,17 @@ MODULE_LICENSE("GPL");
static int __init mirred_init_module(void)
{
+ int err = register_netdevice_notifier(&mirred_device_notifier);
+ if (err)
+ return err;
+
pr_info("Mirror/redirect action on\n");
return tcf_register_action(&act_mirred_ops);
}
static void __exit mirred_cleanup_module(void)
{
+ unregister_netdevice_notifier(&mirred_device_notifier);
tcf_unregister_action(&act_mirred_ops);
}