From 3f602b08dec32c418fc391fc838db357aab84f8a Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Mon, 25 Apr 2011 19:39:24 +0000 Subject: xfrm: Fix replay window size calculation on initialization On replay initialization, we compute the size of the replay buffer to see if the replay window fits into the buffer. This computation lacks a mutliplication by 8 because we need the size in bit, not in byte. So we might return an error even though the replay window would fit into the buffer. This patch fixes this issue. Signed-off-by: Steffen Klassert Acked-by: Herbert Xu Signed-off-by: David S. Miller --- net/xfrm/xfrm_replay.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c index f218385950ca..e8a781422feb 100644 --- a/net/xfrm/xfrm_replay.c +++ b/net/xfrm/xfrm_replay.c @@ -532,7 +532,7 @@ int xfrm_init_replay(struct xfrm_state *x) if (replay_esn) { if (replay_esn->replay_window > - replay_esn->bmp_len * sizeof(__u32)) + replay_esn->bmp_len * sizeof(__u32) * 8) return -EINVAL; if ((x->props.flags & XFRM_STATE_ESN) && x->replay_esn) -- cgit v1.2.3 From c0a56e64aec331f33ead29ba493ee184d9bdc840 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Mon, 25 Apr 2011 19:40:23 +0000 Subject: esp6: Fix scatterlist initialization When we use IPsec extended sequence numbers, we may overwrite the last scatterlist of the associated data by the scatterlist for the skb. This patch fixes this by placing the scatterlist for the skb right behind the last scatterlist of the associated data. esp4 does it already like that. Signed-off-by: Steffen Klassert Acked-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv6/esp6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c index 5aa8ec88f194..59dccfbb5b11 100644 --- a/net/ipv6/esp6.c +++ b/net/ipv6/esp6.c @@ -371,7 +371,7 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb) iv = esp_tmp_iv(aead, tmp, seqhilen); req = esp_tmp_req(aead, iv); asg = esp_req_sg(aead, req); - sg = asg + 1; + sg = asg + sglists; skb->ip_summed = CHECKSUM_NONE; -- cgit v1.2.3 From 7833aa05b8db63484b43b4b4c389cd4533140afb Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Mon, 25 Apr 2011 19:41:21 +0000 Subject: xfrm: Check for the new replay implementation if an esn state is inserted IPsec extended sequence numbers can be used only with the new anti-replay window implementation. So check if the new implementation is used if an esn state is inserted and return an error if it is not. Signed-off-by: Steffen Klassert Acked-by: Herbert Xu Signed-off-by: David S. Miller --- net/xfrm/xfrm_user.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 5d1d60d3ca83..c658cb3bc7c3 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -124,6 +124,9 @@ static inline int verify_replay(struct xfrm_usersa_info *p, { struct nlattr *rt = attrs[XFRMA_REPLAY_ESN_VAL]; + if ((p->flags & XFRM_STATE_ESN) && !rt) + return -EINVAL; + if (!rt) return 0; -- cgit v1.2.3 From f61583941667c96d61fc6991b9f23307f9bfa87e Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Tue, 19 Apr 2011 22:49:29 +0200 Subject: b43: trivial: update module info about ucode16_mimo firmware MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/net/wireless/b43/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 57eb5b649730..7841b95f3935 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -72,6 +72,7 @@ MODULE_FIRMWARE("b43/ucode11.fw"); MODULE_FIRMWARE("b43/ucode13.fw"); MODULE_FIRMWARE("b43/ucode14.fw"); MODULE_FIRMWARE("b43/ucode15.fw"); +MODULE_FIRMWARE("b43/ucode16_mimo.fw"); MODULE_FIRMWARE("b43/ucode5.fw"); MODULE_FIRMWARE("b43/ucode9.fw"); -- cgit v1.2.3 From 1501b6764f0c363a9f1d72f9d422841f81f1bd8c Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Mon, 25 Apr 2011 11:12:57 -0700 Subject: iwlegacy: led stay solid on when no traffic commit 5ed540aecc2aae92d5c97b9a9306a5bf88ad5574 change the led behavior for iwlwifi driver; the side effect cause led blink all the time. Modify the led blink table to fix this problem Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlegacy/iwl-led.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlegacy/iwl-led.c b/drivers/net/wireless/iwlegacy/iwl-led.c index 15eb8b707157..bda0d61b2c0d 100644 --- a/drivers/net/wireless/iwlegacy/iwl-led.c +++ b/drivers/net/wireless/iwlegacy/iwl-led.c @@ -48,8 +48,21 @@ module_param(led_mode, int, S_IRUGO); MODULE_PARM_DESC(led_mode, "0=system default, " "1=On(RF On)/Off(RF Off), 2=blinking"); +/* Throughput OFF time(ms) ON time (ms) + * >300 25 25 + * >200 to 300 40 40 + * >100 to 200 55 55 + * >70 to 100 65 65 + * >50 to 70 75 75 + * >20 to 50 85 85 + * >10 to 20 95 95 + * >5 to 10 110 110 + * >1 to 5 130 130 + * >0 to 1 167 167 + * <=0 SOLID ON + */ static const struct ieee80211_tpt_blink iwl_blink[] = { - { .throughput = 0 * 1024 - 1, .blink_time = 334 }, + { .throughput = 0, .blink_time = 334 }, { .throughput = 1 * 1024 - 1, .blink_time = 260 }, { .throughput = 5 * 1024 - 1, .blink_time = 220 }, { .throughput = 10 * 1024 - 1, .blink_time = 190 }, @@ -101,6 +114,11 @@ static int iwl_legacy_led_cmd(struct iwl_priv *priv, if (priv->blink_on == on && priv->blink_off == off) return 0; + if (off == 0) { + /* led is SOLID_ON */ + on = IWL_LED_SOLID; + } + IWL_DEBUG_LED(priv, "Led blink time compensation=%u\n", priv->cfg->base_params->led_compensation); led_cmd.on = iwl_legacy_blink_compensation(priv, on, -- cgit v1.2.3 From f325757ab2812b42da4d690cf8da73c0e678368c Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Thu, 28 Apr 2011 11:36:54 +0200 Subject: iwl4965: fix "TX Power requested while scanning" Fix the following: WARNING: at drivers/net/wireless/iwlegacy/iwl-4965.c:1128 \ iwl4965_send_tx_power+0x61/0x102 [iwl4965]() Hardware name: [...] TX Power requested while scanning! Pid: 5723, comm: kworker/u:28 Not tainted 2.6.39-0.rc4.4.fc14.x86_64 #1 Call Trace: [] warn_slowpath_common+0x85/0x9d [] ? iwl4965_show_temperature+0x49/0x49 [iwl4965] [] warn_slowpath_fmt+0x46/0x48 [] iwl4965_send_tx_power+0x61/0x102 [iwl4965] [] ? mutex_lock+0x36/0x50 [] iwl4965_bg_txpower_work+0x57/0x73 [iwl4965] [] process_one_work+0x18d/0x286 [] worker_thread+0xfd/0x181 [] ? manage_workers.clone.16+0x172/0x172 [] kthread+0x82/0x8a [] kernel_thread_helper+0x4/0x10 [] ? kthread_worker_fn+0x14b/0x14b [] ? gs_change+0x13/0x13 Reported-and-tested-by: Paul Bolle Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- drivers/net/wireless/iwlegacy/iwl4965-base.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlegacy/iwl4965-base.c b/drivers/net/wireless/iwlegacy/iwl4965-base.c index d484c3678163..a62fe24ee594 100644 --- a/drivers/net/wireless/iwlegacy/iwl4965-base.c +++ b/drivers/net/wireless/iwlegacy/iwl4965-base.c @@ -2984,15 +2984,15 @@ static void iwl4965_bg_txpower_work(struct work_struct *work) struct iwl_priv *priv = container_of(work, struct iwl_priv, txpower_work); + mutex_lock(&priv->mutex); + /* If a scan happened to start before we got here * then just return; the statistics notification will * kick off another scheduled work to compensate for * any temperature delta we missed here. */ if (test_bit(STATUS_EXIT_PENDING, &priv->status) || test_bit(STATUS_SCANNING, &priv->status)) - return; - - mutex_lock(&priv->mutex); + goto out; /* Regardless of if we are associated, we must reconfigure the * TX power since frames can be sent on non-radar channels while @@ -3002,7 +3002,7 @@ static void iwl4965_bg_txpower_work(struct work_struct *work) /* Update last_temperature to keep is_calib_needed from running * when it isn't needed... */ priv->last_temperature = priv->temperature; - +out: mutex_unlock(&priv->mutex); } -- cgit v1.2.3 From 68972efa657040f891c7eda07c7da8c8dd576788 Mon Sep 17 00:00:00 2001 From: Paul Stewart Date: Thu, 28 Apr 2011 05:43:37 +0000 Subject: usbnet: Resubmit interrupt URB if device is open Resubmit interrupt URB if device is open. Use a flag set in usbnet_open() to determine this state. Also kill and free interrupt URB in usbnet_disconnect(). [Rebased off git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git] Signed-off-by: Paul Stewart Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 8 ++++++++ include/linux/usb/usbnet.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 069c1cf0fdf7..009bba3d753e 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -736,6 +736,7 @@ int usbnet_open (struct net_device *net) } } + set_bit(EVENT_DEV_OPEN, &dev->flags); netif_start_queue (net); netif_info(dev, ifup, dev->net, "open: enable queueing (rx %d, tx %d) mtu %d %s framing\n", @@ -1259,6 +1260,9 @@ void usbnet_disconnect (struct usb_interface *intf) if (dev->driver_info->unbind) dev->driver_info->unbind (dev, intf); + usb_kill_urb(dev->interrupt); + usb_free_urb(dev->interrupt); + free_netdev(net); usb_put_dev (xdev); } @@ -1498,6 +1502,10 @@ int usbnet_resume (struct usb_interface *intf) int retval; if (!--dev->suspend_count) { + /* resume interrupt URBs */ + if (dev->interrupt && test_bit(EVENT_DEV_OPEN, &dev->flags)) + usb_submit_urb(dev->interrupt, GFP_NOIO); + spin_lock_irq(&dev->txq.lock); while ((res = usb_get_from_anchor(&dev->deferred))) { diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 0e1855079fbb..605b0aa8d852 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -68,6 +68,7 @@ struct usbnet { # define EVENT_RX_PAUSED 5 # define EVENT_DEV_WAKING 6 # define EVENT_DEV_ASLEEP 7 +# define EVENT_DEV_OPEN 8 }; static inline struct usb_driver *driver_of(struct usb_interface *intf) -- cgit v1.2.3 From b3b270054b80e6195b1d2b2ce082239911261839 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Tue, 26 Apr 2011 01:45:41 +0000 Subject: dsa/mv88e6131: fix unknown multicast/broadcast forwarding on mv88e6085 The 88e6085 has a few differences from the other devices in the port control registers, causing unknown multicast/broadcast packets to get dropped when using the standard port setup. At the same time update kconfig to clarify that the mv88e6085 is now supported. Signed-off-by: Peter Korsgaard Acked-by: Lennert Buytenhek Signed-off-by: David S. Miller --- net/dsa/Kconfig | 4 ++-- net/dsa/mv88e6131.c | 26 +++++++++++++++++++++----- 2 files changed, 23 insertions(+), 7 deletions(-) diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig index 87bb5f4de0e8..c53ded2a98df 100644 --- a/net/dsa/Kconfig +++ b/net/dsa/Kconfig @@ -41,12 +41,12 @@ config NET_DSA_MV88E6XXX_NEED_PPU default n config NET_DSA_MV88E6131 - bool "Marvell 88E6095/6095F/6131 ethernet switch chip support" + bool "Marvell 88E6085/6095/6095F/6131 ethernet switch chip support" select NET_DSA_MV88E6XXX select NET_DSA_MV88E6XXX_NEED_PPU select NET_DSA_TAG_DSA ---help--- - This enables support for the Marvell 88E6095/6095F/6131 + This enables support for the Marvell 88E6085/6095/6095F/6131 ethernet switch chips. config NET_DSA_MV88E6123_61_65 diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c index 3da418894efc..45f7411e90ba 100644 --- a/net/dsa/mv88e6131.c +++ b/net/dsa/mv88e6131.c @@ -207,8 +207,15 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p) * mode, but do not enable forwarding of unknown unicasts. */ val = 0x0433; - if (p == dsa_upstream_port(ds)) + if (p == dsa_upstream_port(ds)) { val |= 0x0104; + /* + * On 6085, unknown multicast forward is controlled + * here rather than in Port Control 2 register. + */ + if (ps->id == ID_6085) + val |= 0x0008; + } if (ds->dsa_port_mask & (1 << p)) val |= 0x0100; REG_WRITE(addr, 0x04, val); @@ -251,10 +258,19 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p) * If this is the upstream port for this switch, enable * forwarding of unknown multicast addresses. */ - val = 0x0080 | dsa_upstream_port(ds); - if (p == dsa_upstream_port(ds)) - val |= 0x0040; - REG_WRITE(addr, 0x08, val); + if (ps->id == ID_6085) + /* + * on 6085, bits 3:0 are reserved, bit 6 control ARP + * mirroring, and multicast forward is handled in + * Port Control register. + */ + REG_WRITE(addr, 0x08, 0x0080); + else { + val = 0x0080 | dsa_upstream_port(ds); + if (p == dsa_upstream_port(ds)) + val |= 0x0040; + REG_WRITE(addr, 0x08, val); + } /* * Rate Control: disable ingress rate limiting. -- cgit v1.2.3 From bfd36103ec26599557c2bd3225a1f1c9267f8fcb Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Fri, 29 Apr 2011 17:51:06 +0200 Subject: iwlagn: fix "Received BA when not expected" Need to use broadcast sta_id for management frames, otherwise we broke BA session in the firmware and get messages like that: "Received BA when not expected" or (on older kernels): "BA scd_flow 0 does not match txq_id 10" This fix regression introduced in 2.6.35 during station management code rewrite by: commit 2a87c26bbe9587baeb9e56d3ce0b4971bd777643 Author: Johannes Berg Date: Fri Apr 30 11:30:45 2010 -0700 iwlwifi: use iwl_find_station less Patch partially resolve: https://bugzilla.kernel.org/show_bug.cgi?id=16691 However, there are still 11n performance problems on 4965 and 5xxx devices that need to be investigated. Cc: stable@kernel.org # 2.6.35+ Signed-off-by: Stanislaw Gruszka Acked-by: Johannes Berg Acked-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 2dd7d54a796f..0712b67283a4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -568,12 +568,17 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) hdr_len = ieee80211_hdrlen(fc); - /* Find index into station table for destination station */ - sta_id = iwl_sta_id_or_broadcast(priv, ctx, info->control.sta); - if (sta_id == IWL_INVALID_STATION) { - IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", - hdr->addr1); - goto drop_unlock; + /* For management frames use broadcast id to do not break aggregation */ + if (!ieee80211_is_data(fc)) + sta_id = ctx->bcast_sta_id; + else { + /* Find index into station table for destination station */ + sta_id = iwl_sta_id_or_broadcast(priv, ctx, info->control.sta); + if (sta_id == IWL_INVALID_STATION) { + IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", + hdr->addr1); + goto drop_unlock; + } } IWL_DEBUG_TX(priv, "station Id %d\n", sta_id); -- cgit v1.2.3 From 16b345d89686ca0482a9ca741a1167def1abdd7f Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Fri, 29 Apr 2011 17:51:56 +0200 Subject: iwl4965: fix "Received BA when not expected" Need to use broadcast sta_id for management frames, otherwise we broke BA session in the firmware and get messages like that: "Received BA when not expected" or (on older kernels): "BA scd_flow 0 does not match txq_id 10" This fix regression introduced in 2.6.35 during station management code rewrite by: commit 2a87c26bbe9587baeb9e56d3ce0b4971bd777643 Author: Johannes Berg Date: Fri Apr 30 11:30:45 2010 -0700 iwlwifi: use iwl_find_station less Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- drivers/net/wireless/iwlegacy/iwl-4965-tx.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c index fbec88d48f1b..79ac081832fb 100644 --- a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c +++ b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c @@ -316,12 +316,18 @@ int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) hdr_len = ieee80211_hdrlen(fc); - /* Find index into station table for destination station */ - sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, info->control.sta); - if (sta_id == IWL_INVALID_STATION) { - IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", - hdr->addr1); - goto drop_unlock; + /* For management frames use broadcast id to do not break aggregation */ + if (!ieee80211_is_data(fc)) + sta_id = ctx->bcast_sta_id; + else { + /* Find index into station table for destination station */ + sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, info->control.sta); + + if (sta_id == IWL_INVALID_STATION) { + IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", + hdr->addr1); + goto drop_unlock; + } } IWL_DEBUG_TX(priv, "station Id %d\n", sta_id); -- cgit v1.2.3 From 8333a46ad3877485e4d67ef499c6dda36bfd1f9a Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Tue, 26 Apr 2011 10:30:11 +0000 Subject: bnx2: cancel timer on device removal This oops was recently reported to me: invalid opcode: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:01.0/0000:01:0d.0/0000:02:05.0/device CPU 1 Modules linked in: bnx2(+) sunrpc ipv6 dm_mirror dm_region_hash dm_log sg microcode serio_raw amd64_edac_mod edac_core edac_mce_amd k8temp i2c_piix4 shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas radeon ttm drm_kms_helper drm hwmon i2c_algo_bit i2c_core dm_mod [last unloaded: bnx2] Modules linked in: bnx2(+) sunrpc ipv6 dm_mirror dm_region_hash dm_log sg microcode serio_raw amd64_edac_mod edac_core edac_mce_amd k8temp i2c_piix4 shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas radeon ttm drm_kms_helper drm hwmon i2c_algo_bit i2c_core dm_mod [last unloaded: bnx2] Pid: 23900, comm: pidof Not tainted 2.6.32-130.el6.x86_64 #1 BladeCenter LS21 -[797251Z]- RIP: 0010:[] [] 0xffffffffa058b270 RSP: 0018:ffff880002083e48 EFLAGS: 00010246 RAX: ffff880002083e90 RBX: ffff88007ccd4000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: dead000000200200 RDI: ffff8800007b8700 RBP: ffff880002083ed0 R08: ffff88000208db40 R09: 0000022d191d27c8 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800007b9bc8 R13: ffff880002083e90 R14: ffff8800007b8700 R15: ffffffffa058b270 FS: 00007fbb3bcf7700(0000) GS:ffff880002080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001664a98 CR3: 0000000060395000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process pidof (pid: 23900, threadinfo ffff8800007e8000, task ffff8800091c0040) Stack: ffffffff81079f77 ffffffff8109e010 ffff88007ccd5c20 ffff88007ccd5820 <0> ffff88007ccd5420 ffff8800007e9fd8 ffff8800007e9fd8 0000010000000000 <0> ffff88007ccd5020 ffff880002083e90 ffff880002083e90 ffffffff8102a00d Call Trace: [] ? run_timer_softirq+0x197/0x340 [] ? tick_sched_timer+0x0/0xc0 [] ? lapic_next_event+0x1d/0x30 [] __do_softirq+0xb7/0x1e0 [] ? hrtimer_interrupt+0x140/0x250 [] ? filldir+0x0/0xe0 [] call_softirq+0x1c/0x30 [] do_softirq+0x65/0xa0 [] irq_exit+0x85/0x90 [] smp_apic_timer_interrupt+0x70/0x9b [] apic_timer_interrupt+0x13/0x20 [] ? selinux_file_permission+0x45/0x150 [] ? _atomic_dec_and_lock+0x55/0x80 [] security_file_permission+0x16/0x20 [] vfs_readdir+0x71/0xe0 [] sys_getdents+0x89/0xf0 [] system_call_fastpath+0x16/0x1b It occured during some stress testing, in which the reporter was repeatedly removing and modprobing the bnx2 module while doing various other random operations on the bnx2 registered net device. Noting that this error occured on a serdes based device, we noted that there were a few ethtool operations (most notably self_test and set_phys_id) that have execution paths that lead into bnx2_setup_serdes_phy. This function is notable because it executes a mod_timer call, which starts the bp->timer running. Currently bnx2 is setup to assume that this timer only nees to be stopped when bnx2_close or bnx2_suspend is called. Since the above ethtool operations are not gated on the net device having been opened however, that assumption is incorrect, and can lead to the timer still running after the module has been removed, leading to the oops above (as well as other simmilar oopses). Fix the problem by ensuring that the timer is stopped when pci_device_unregister is called. Signed-off-by: Neil Horman Reported-by: Hushan Jia CC: Michael Chan CC: "David S. Miller" Acked-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 8e6d618b5305..d8383a9af9ad 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -8413,6 +8413,8 @@ bnx2_remove_one(struct pci_dev *pdev) unregister_netdev(dev); + del_timer_sync(&bp->timer); + if (bp->mips_firmware) release_firmware(bp->mips_firmware); if (bp->rv2p_firmware) -- cgit v1.2.3 From b3c914aa84f4e4bbb3efc8f41c359d96e5e932d2 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 27 Apr 2011 09:54:28 +0000 Subject: usbnet: add support for some Huawei modems with cdc-ether ports Some newer Huawei devices (T-Mobile Rocket, others) have cdc-ether compatible ports, so recognize and expose them. Signed-off-by: Dan Williams Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ether.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 341f7056a800..a301479ecc60 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -460,7 +460,7 @@ static const struct driver_info cdc_info = { .manage_power = cdc_manage_power, }; -static const struct driver_info mbm_info = { +static const struct driver_info wwan_info = { .description = "Mobile Broadband Network Device", .flags = FLAG_WWAN, .bind = usbnet_cdc_bind, @@ -471,6 +471,7 @@ static const struct driver_info mbm_info = { /*-------------------------------------------------------------------------*/ +#define HUAWEI_VENDOR_ID 0x12D1 static const struct usb_device_id products [] = { /* @@ -587,8 +588,17 @@ static const struct usb_device_id products [] = { }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), - .driver_info = (unsigned long)&mbm_info, + .driver_info = (unsigned long)&wwan_info, +}, { + /* Various Huawei modems with a network port like the UMG1831 */ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = HUAWEI_VENDOR_ID, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, + .bInterfaceProtocol = 255, + .driver_info = (unsigned long)&wwan_info, }, { }, // END }; -- cgit v1.2.3 From 686f13bb17784fbf8595a59ff4e4bd707d5ae66f Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Fri, 29 Apr 2011 14:15:53 +0200 Subject: usbnet: Transfer of maintainership Somebody has to do it, however unfortunate be the cause. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index c85368d44094..eb4f996d39b7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6551,7 +6551,7 @@ S: Maintained F: drivers/usb/host/uhci* USB "USBNET" DRIVER FRAMEWORK -M: David Brownell +M: Oliver Neukum L: netdev@vger.kernel.org W: http://www.linux-usb.org/usbnet S: Maintained -- cgit v1.2.3 From eee9700c5dd8fbac517c8c1e85c60b688bc311a9 Mon Sep 17 00:00:00 2001 From: Adam Jaremko Date: Thu, 28 Apr 2011 07:41:18 +0000 Subject: net: ftmac100: fix scheduling while atomic during PHY link status change Signed-off-by: Adam Jaremko Acked-by: Po-Yu Chuang Signed-off-by: David S. Miller --- drivers/net/ftmac100.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c index a31661948c42..9bd7746cbfcf 100644 --- a/drivers/net/ftmac100.c +++ b/drivers/net/ftmac100.c @@ -139,11 +139,11 @@ static int ftmac100_reset(struct ftmac100 *priv) * that hardware reset completed (what the f*ck). * We still need to wait for a while. */ - usleep_range(500, 1000); + udelay(500); return 0; } - usleep_range(1000, 10000); + udelay(1000); } netdev_err(netdev, "software reset failed\n"); @@ -772,7 +772,7 @@ static int ftmac100_mdio_read(struct net_device *netdev, int phy_id, int reg) if ((phycr & FTMAC100_PHYCR_MIIRD) == 0) return phycr & FTMAC100_PHYCR_MIIRDATA; - usleep_range(100, 1000); + udelay(100); } netdev_err(netdev, "mdio read timed out\n"); @@ -801,7 +801,7 @@ static void ftmac100_mdio_write(struct net_device *netdev, int phy_id, int reg, if ((phycr & FTMAC100_PHYCR_MIIWR) == 0) return; - usleep_range(100, 1000); + udelay(100); } netdev_err(netdev, "mdio write timed out\n"); -- cgit v1.2.3 From 2b5a4ace664cfe05c17bee60c4da66263a05fccf Mon Sep 17 00:00:00 2001 From: artpol Date: Wed, 27 Apr 2011 17:49:14 +0000 Subject: mii: add support of pause frames in mii_get_an Add support of pause frames advertise in mii_get_an. This provides all drivers that use mii_ethtool_gset to represent their own and Link partner flow control abilities in ethtool. Signed-off-by: Artem Polyakov Signed-off-by: David S. Miller --- drivers/net/mii.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/mii.c b/drivers/net/mii.c index 0a6c6a2e7550..d4fc00b1ff93 100644 --- a/drivers/net/mii.c +++ b/drivers/net/mii.c @@ -49,6 +49,10 @@ static u32 mii_get_an(struct mii_if_info *mii, u16 addr) result |= ADVERTISED_100baseT_Half; if (advert & ADVERTISE_100FULL) result |= ADVERTISED_100baseT_Full; + if (advert & ADVERTISE_PAUSE_CAP) + result |= ADVERTISED_Pause; + if (advert & ADVERTISE_PAUSE_ASYM) + result |= ADVERTISED_Asym_Pause; return result; } -- cgit v1.2.3 From a05d2ad1c1f391c7f514a1d1e09b5417968a7d07 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 24 Apr 2011 01:54:57 +0000 Subject: af_unix: Only allow recv on connected seqpacket sockets. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes the following oops discovered by Dan Aloni: > Anyway, the following is the output of the Oops that I got on the > Ubuntu kernel on which I first detected the problem > (2.6.37-12-generic). The Oops that followed will be more useful, I > guess. >[ 5594.669852] BUG: unable to handle kernel NULL pointer dereference > at           (null) > [ 5594.681606] IP: [] unix_dgram_recvmsg+0x1fb/0x420 > [ 5594.687576] PGD 2a05d067 PUD 2b951067 PMD 0 > [ 5594.693720] Oops: 0002 [#1] SMP > [ 5594.699888] last sysfs file: The bug was that unix domain sockets use a pseduo packet for connecting and accept uses that psudo packet to get the socket. In the buggy seqpacket case we were allowing unconnected sockets to call recvmsg and try to receive the pseudo packet. That is always wrong and as of commit 7361c36c5 the pseudo packet had become enough different from a normal packet that the kernel started oopsing. Do for seqpacket_recv what was done for seqpacket_send in 2.5 and only allow it on connected seqpacket sockets. Cc: stable@kernel.org Tested-by: Dan Aloni Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller --- net/unix/af_unix.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 3a43a8304768..b1d75beb7e20 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -524,6 +524,8 @@ static int unix_dgram_connect(struct socket *, struct sockaddr *, int, int); static int unix_seqpacket_sendmsg(struct kiocb *, struct socket *, struct msghdr *, size_t); +static int unix_seqpacket_recvmsg(struct kiocb *, struct socket *, + struct msghdr *, size_t, int); static const struct proto_ops unix_stream_ops = { .family = PF_UNIX, @@ -583,7 +585,7 @@ static const struct proto_ops unix_seqpacket_ops = { .setsockopt = sock_no_setsockopt, .getsockopt = sock_no_getsockopt, .sendmsg = unix_seqpacket_sendmsg, - .recvmsg = unix_dgram_recvmsg, + .recvmsg = unix_seqpacket_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, }; @@ -1699,6 +1701,18 @@ static int unix_seqpacket_sendmsg(struct kiocb *kiocb, struct socket *sock, return unix_dgram_sendmsg(kiocb, sock, msg, len); } +static int unix_seqpacket_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t size, + int flags) +{ + struct sock *sk = sock->sk; + + if (sk->sk_state != TCP_ESTABLISHED) + return -ENOTCONN; + + return unix_dgram_recvmsg(iocb, sock, msg, size, flags); +} + static void unix_copy_addr(struct msghdr *msg, struct sock *sk) { struct unix_sock *u = unix_sk(sk); -- cgit v1.2.3 From 7cfd260910b881250cde76ba92ebe3cbf8493a8f Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sun, 1 May 2011 02:04:11 +0000 Subject: ipv4: don't spam dmesg with "Using LC-trie" messages fib_trie_table() is called during netns creation and Chromium uses clone(CLONE_NEWNET) to sandbox renderer process. Don't print anything. Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/ipv4/fib_trie.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index e9013d6c1f51..5fe9b8b41df3 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1978,9 +1978,6 @@ struct fib_table *fib_trie_table(u32 id) t = (struct trie *) tb->tb_data; memset(t, 0, sizeof(*t)); - if (id == RT_TABLE_LOCAL) - pr_info("IPv4 FIB: Using LC-trie version %s\n", VERSION); - return tb; } -- cgit v1.2.3 From 983960b159a75621855283030d92a80bea92e071 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 2 May 2011 09:59:29 +0000 Subject: amd8111e: trivial typo spelling: Negotitate -> Negotiate Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- drivers/net/amd8111e.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/amd8111e.c b/drivers/net/amd8111e.c index 88495c48a81d..241b185e6569 100644 --- a/drivers/net/amd8111e.c +++ b/drivers/net/amd8111e.c @@ -106,7 +106,7 @@ MODULE_DESCRIPTION ("AMD8111 based 10/100 Ethernet Controller. Driver Version "M MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, amd8111e_pci_tbl); module_param_array(speed_duplex, int, NULL, 0); -MODULE_PARM_DESC(speed_duplex, "Set device speed and duplex modes, 0: Auto Negotitate, 1: 10Mbps Half Duplex, 2: 10Mbps Full Duplex, 3: 100Mbps Half Duplex, 4: 100Mbps Full Duplex"); +MODULE_PARM_DESC(speed_duplex, "Set device speed and duplex modes, 0: Auto Negotiate, 1: 10Mbps Half Duplex, 2: 10Mbps Full Duplex, 3: 100Mbps Half Duplex, 4: 100Mbps Full Duplex"); module_param_array(coalesce, bool, NULL, 0); MODULE_PARM_DESC(coalesce, "Enable or Disable interrupt coalescing, 1: Enable, 0: Disable"); module_param_array(dynamic_ipg, bool, NULL, 0); -- cgit v1.2.3 From 41c31f318a5209922d051e293c61e4724daad11c Mon Sep 17 00:00:00 2001 From: Lifeng Sun Date: Wed, 27 Apr 2011 22:04:51 +0000 Subject: networking: inappropriate ioctl operation should return ENOTTY ioctl() calls against a socket with an inappropriate ioctl operation are incorrectly returning EINVAL rather than ENOTTY: [ENOTTY] Inappropriate I/O control operation. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=33992 Signed-off-by: Lifeng Sun Signed-off-by: David S. Miller --- net/core/dev.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index c2ac599fa0f6..856b6ee9a1d5 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4773,7 +4773,7 @@ static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cm * is never reached */ WARN_ON(1); - err = -EINVAL; + err = -ENOTTY; break; } @@ -5041,7 +5041,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg) /* Set the per device memory buffer space. * Not applicable in our case */ case SIOCSIFLINK: - return -EINVAL; + return -ENOTTY; /* * Unknown or private ioctl. @@ -5062,7 +5062,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg) /* Take care of Wireless Extensions */ if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) return wext_handle_ioctl(net, &ifr, cmd, arg); - return -EINVAL; + return -ENOTTY; } } -- cgit v1.2.3 From 6fdbab9d93e04bfe71f2b3fde485d092e2ffe3ec Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 28 Apr 2011 11:02:15 +0000 Subject: tg3: Fix failure to enable WoL by default when possible tg3 is supposed to enable WoL by default on adapters which support that, but it fails to do so unless the adapter's /sys/devices/.../power/wakeup file contains 'enabled' during the initialization of the adapter. Fix that by making tg3 use device_set_wakeup_enable() to enable wakeup automatically whenever WoL should be enabled by default. Signed-off-by: Rafael J. Wysocki Signed-off-by: David S. Miller --- drivers/net/tg3.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index b8c5f35577e4..7a5daefb6f33 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -12327,8 +12327,10 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) if (val & VCPU_CFGSHDW_ASPM_DBNC) tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND; if ((val & VCPU_CFGSHDW_WOL_ENABLE) && - (val & VCPU_CFGSHDW_WOL_MAGPKT)) + (val & VCPU_CFGSHDW_WOL_MAGPKT)) { tp->tg3_flags |= TG3_FLAG_WOL_ENABLE; + device_set_wakeup_enable(&tp->pdev->dev, true); + } goto done; } @@ -12461,8 +12463,10 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) tp->tg3_flags &= ~TG3_FLAG_WOL_CAP; if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) && - (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE)) + (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE)) { tp->tg3_flags |= TG3_FLAG_WOL_ENABLE; + device_set_wakeup_enable(&tp->pdev->dev, true); + } if (cfg2 & (1 << 17)) tp->phy_flags |= TG3_PHYFLG_CAPACITIVE_COUPLING; -- cgit v1.2.3 From d946092000698fd204d82a9d239103c656fb63bf Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Sat, 30 Apr 2011 08:29:27 +0000 Subject: smsc95xx: fix reset check The reset loop check should check the MII_BMCR register value for BMCR_RESET rather than for MII_BMCR (the register address, which also happens to be zero). Signed-off-by: Rabin Vincent Signed-off-by: David S. Miller --- drivers/net/usb/smsc95xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 47a6c870b51f..48d4efdb4959 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -730,7 +730,7 @@ static int smsc95xx_phy_initialize(struct usbnet *dev) msleep(10); bmcr = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR); timeout++; - } while ((bmcr & MII_BMCR) && (timeout < 100)); + } while ((bmcr & BMCR_RESET) && (timeout < 100)); if (timeout >= 100) { netdev_warn(dev->net, "timeout on PHY Reset"); -- cgit v1.2.3 From 6c8c44462ac8ac3f95929328f0c56e9e8b6dd524 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Sat, 30 Apr 2011 01:28:17 +0000 Subject: Revert: veth: remove unneeded ifname code from veth_newlink() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 84c49d8c3e4abefb0a41a77b25aa37ebe8d6b743 ("veth: remove unneeded ifname code from veth_newlink()") caused regression on veth creation. This patch reverts the original one. Reported-by: Michał Mirosław Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/veth.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 2de9b90c5f8f..3b99f64104fd 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -403,6 +403,17 @@ static int veth_newlink(struct net *src_net, struct net_device *dev, if (tb[IFLA_ADDRESS] == NULL) random_ether_addr(dev->dev_addr); + if (tb[IFLA_IFNAME]) + nla_strlcpy(dev->name, tb[IFLA_IFNAME], IFNAMSIZ); + else + snprintf(dev->name, IFNAMSIZ, DRV_NAME "%%d"); + + if (strchr(dev->name, '%')) { + err = dev_alloc_name(dev, dev->name); + if (err < 0) + goto err_alloc_name; + } + err = register_netdevice(dev); if (err < 0) goto err_register_dev; @@ -422,6 +433,7 @@ static int veth_newlink(struct net *src_net, struct net_device *dev, err_register_dev: /* nothing to do */ +err_alloc_name: err_configure_peer: unregister_netdevice(peer); return err; -- cgit v1.2.3 From ff538818f4a82c4cf02d2d6bd6ac5c7360b9d41d Mon Sep 17 00:00:00 2001 From: Lucian Adrian Grijincu Date: Sun, 1 May 2011 01:44:01 +0000 Subject: sysctl: net: call unregister_net_sysctl_table where needed ctl_table_headers registered with register_net_sysctl_table should have been unregistered with the equivalent unregister_net_sysctl_table Signed-off-by: Lucian Adrian Grijincu Signed-off-by: David S. Miller --- net/ipv4/devinet.c | 2 +- net/ipv6/addrconf.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 5345b0bee6df..cd9ca0811cfa 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1680,7 +1680,7 @@ static void __devinet_sysctl_unregister(struct ipv4_devconf *cnf) return; cnf->sysctl = NULL; - unregister_sysctl_table(t->sysctl_header); + unregister_net_sysctl_table(t->sysctl_header); kfree(t->dev_name); kfree(t); } diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 1493534116df..a7bda0757053 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4537,7 +4537,7 @@ static void __addrconf_sysctl_unregister(struct ipv6_devconf *p) t = p->sysctl; p->sysctl = NULL; - unregister_sysctl_table(t->sysctl_header); + unregister_net_sysctl_table(t->sysctl_header); kfree(t->dev_name); kfree(t); } -- cgit v1.2.3 From 64f3b9e203bd06855072e295557dca1485a2ecba Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 4 May 2011 10:02:26 +0000 Subject: net: ip_expire() must revalidate route Commit 4a94445c9a5c (net: Use ip_route_input_noref() in input path) added a bug in IP defragmentation handling, in case timeout is fired. When a frame is defragmented, we use last skb dst field when building final skb. Its dst is valid, since we are in rcu read section. But if a timeout occurs, we take first queued fragment to build one ICMP TIME EXCEEDED message. Problem is all queued skb have weak dst pointers, since we escaped RCU critical section after their queueing. icmp_send() might dereference a now freed (and possibly reused) part of memory. Calling skb_dst_drop() and ip_route_input_noref() to revalidate route is the only possible choice. Reported-by: Denys Fedoryshchenko Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/ip_fragment.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index a1151b8adf3c..b1d282f11be7 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -223,31 +223,30 @@ static void ip_expire(unsigned long arg) if ((qp->q.last_in & INET_FRAG_FIRST_IN) && qp->q.fragments != NULL) { struct sk_buff *head = qp->q.fragments; + const struct iphdr *iph; + int err; rcu_read_lock(); head->dev = dev_get_by_index_rcu(net, qp->iif); if (!head->dev) goto out_rcu_unlock; + /* skb dst is stale, drop it, and perform route lookup again */ + skb_dst_drop(head); + iph = ip_hdr(head); + err = ip_route_input_noref(head, iph->daddr, iph->saddr, + iph->tos, head->dev); + if (err) + goto out_rcu_unlock; + /* - * Only search router table for the head fragment, - * when defraging timeout at PRE_ROUTING HOOK. + * Only an end host needs to send an ICMP + * "Fragment Reassembly Timeout" message, per RFC792. */ - if (qp->user == IP_DEFRAG_CONNTRACK_IN && !skb_dst(head)) { - const struct iphdr *iph = ip_hdr(head); - int err = ip_route_input(head, iph->daddr, iph->saddr, - iph->tos, head->dev); - if (unlikely(err)) - goto out_rcu_unlock; - - /* - * Only an end host needs to send an ICMP - * "Fragment Reassembly Timeout" message, per RFC792. - */ - if (skb_rtable(head)->rt_type != RTN_LOCAL) - goto out_rcu_unlock; + if (qp->user == IP_DEFRAG_CONNTRACK_IN && + skb_rtable(head)->rt_type != RTN_LOCAL) + goto out_rcu_unlock; - } /* Send an ICMP "Fragment Reassembly Timeout" message. */ icmp_send(head, ICMP_TIME_EXCEEDED, ICMP_EXC_FRAGTIME, 0); -- cgit v1.2.3 From 75bd0cbdc21d80859c80bdd5dd00125c1a3ccbca Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 28 Apr 2011 22:37:09 +0000 Subject: usbnet: runtime pm: fix out of memory This patch makes use of the EVENT_DEV_OPEN flag introduced recently to fix one out of memory issue, which can be reproduced on omap3/4 based pandaboard/beagle XM easily with steps below: - enable runtime pm echo auto > /sys/devices/platform/usbhs-omap.0/ehci-omap.0/usb1/1-1/1-1.1/power/control - ifconfig eth0 up - then out of memroy happened, see [1] for kernel message. Follows my analysis: - 'ifconfig eth0 up' brings eth0 out of suspend, and usbnet_resume is called to schedule dev->bh, then rx urbs are submited to prepare for recieving data; - some usbnet devices will produce garbage rx packets flood if info->reset is not called in usbnet_open. - so there is no enough chances for usbnet_bh to handle and release recieved skb buffers since many rx interrupts consumes cpu, so out of memory for atomic allocation in rx_submit happened. This patch fixes the issue by simply not allowing schedule of usbnet_bh until device is opened. [1], dmesg [ 234.712005] smsc95xx 1-1.1:1.0: rpm_resume flags 0x4 [ 234.712066] usb 1-1.1: rpm_resume flags 0x0 [ 234.712066] usb 1-1: rpm_resume flags 0x0 [ 234.712097] usb usb1: rpm_resume flags 0x0 [ 234.712127] usb usb1: usb auto-resume [ 234.712158] ehci-omap ehci-omap.0: resume root hub [ 234.754028] hub 1-0:1.0: hub_resume [ 234.754821] hub 1-0:1.0: port 1: status 0507 change 0000 [ 234.756011] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000 [ 234.756042] hub 1-0:1.0: rpm_resume flags 0x4 [ 234.756072] usb usb1: rpm_resume flags 0x0 [ 234.756164] usb usb1: rpm_resume returns 1 [ 234.756195] hub 1-0:1.0: rpm_resume returns 0 [ 234.756195] hub 1-0:1.0: rpm_suspend flags 0x4 [ 234.756225] hub 1-0:1.0: rpm_suspend returns 0 [ 234.756256] usb usb1: rpm_resume returns 0 [ 234.757141] usb 1-1: usb auto-resume [ 234.793151] ehci-omap ehci-omap.0: GetStatus port:1 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 234.816558] usb 1-1: finish resume [ 234.817871] hub 1-1:1.0: hub_resume [ 234.818420] hub 1-1:1.0: port 1: status 0507 change 0000 [ 234.820495] ehci-omap ehci-omap.0: reused qh eec50220 schedule [ 234.820495] usb 1-1: link qh256-0001/eec50220 start 1 [1/0 us] [ 234.820587] usb 1-1: rpm_resume returns 0 [ 234.820800] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0000 [ 234.820800] hub 1-1:1.0: rpm_resume flags 0x4 [ 234.820831] hub 1-1:1.0: rpm_resume returns 0 [ 234.820861] hub 1-1:1.0: rpm_suspend flags 0x4 [ 234.820861] hub 1-1:1.0: rpm_suspend returns 0 [ 234.821777] usb 1-1.1: usb auto-resume [ 234.868591] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0002 [ 234.868591] hub 1-1:1.0: rpm_resume flags 0x4 [ 234.868621] hub 1-1:1.0: rpm_resume returns 0 [ 234.868652] hub 1-1:1.0: rpm_suspend flags 0x4 [ 234.868652] hub 1-1:1.0: rpm_suspend returns 0 [ 234.879486] usb 1-1.1: finish resume [ 234.880279] usb 1-1.1: rpm_resume returns 0 [ 234.880310] smsc95xx 1-1.1:1.0: rpm_resume returns 0 [ 238.880187] ksoftirqd/0: page allocation failure. order:0, mode:0x20 [ 238.880218] Backtrace: [ 238.880249] [] (dump_backtrace+0x0/0xf8) from [] (dump_stack+0x18/0x1c) [ 238.880249] r6:00000000 r5:00000000 r4:00000020 r3:00000002 [ 238.880310] [] (dump_stack+0x0/0x1c) from [] (__alloc_pages_nodemask+0x620/0x724) [ 238.880340] [] (__alloc_pages_nodemask+0x0/0x724) from [] (kmem_getpages.clone.34+0x34/0xc8) [ 238.880371] [] (kmem_getpages.clone.34+0x0/0xc8) from [] (cache_grow.clone.42+0x84/0x154) [ 238.880371] r6:ef871aa4 r5:ef871a80 r4:ef81fd40 r3:00000020 [ 238.880401] [] (cache_grow.clone.42+0x0/0x154) from [] (cache_alloc_refill+0x19c/0x1f0) [ 238.880432] [] (cache_alloc_refill+0x0/0x1f0) from [] (kmem_cache_alloc+0x90/0x190) [ 238.880462] [] (kmem_cache_alloc+0x0/0x190) from [] (__alloc_skb+0x34/0xe8) [ 238.880493] [] (__alloc_skb+0x0/0xe8) from [] (rx_submit+0x2c/0x1d4 [usbnet]) [ 238.880523] [] (rx_submit+0x0/0x1d4 [usbnet]) from [] (rx_complete+0x19c/0x1b0 [usbnet]) [ 238.880737] [] (rx_complete+0x0/0x1b0 [usbnet]) from [] (usb_hcd_giveback_urb+0xa8/0xf4 [usbcore]) [ 238.880737] r8:eeeced34 r7:eeecec00 r6:eeecec00 r5:00000000 r4:eec2dd20 [ 238.880767] r3:bf050b9c [ 238.880859] [] (usb_hcd_giveback_urb+0x0/0xf4 [usbcore]) from [] (ehci_urb_done+0xb0/0xbc [ehci_hcd]) [ 238.880859] r6:00000000 r5:eec2dd20 r4:eeeced44 r3:eec2dd34 [ 238.880920] [] (ehci_urb_done+0x0/0xbc [ehci_hcd]) from [] (qh_completions+0x308/0x3bc [ehci_hcd]) [ 238.880920] r7:00000000 r6:eeda21a0 r5:ffdfe3c0 r4:eeda21ac [ 238.880981] [] (qh_completions+0x0/0x3bc [ehci_hcd]) from [] (scan_async+0xb0/0x16c [ehci_hcd]) [ 238.881011] [] (scan_async+0x0/0x16c [ehci_hcd]) from [] (ehci_work+0x38/0x90 [ehci_hcd]) [ 238.881042] [] (ehci_work+0x0/0x90 [ehci_hcd]) from [] (ehci_irq+0x300/0x34c [ehci_hcd]) [ 238.881072] r4:eeeced34 r3:00000001 [ 238.881134] [] (ehci_irq+0x0/0x34c [ehci_hcd]) from [] (usb_hcd_irq+0x40/0xac [usbcore]) [ 238.881195] [] (usb_hcd_irq+0x0/0xac [usbcore]) from [] (handle_irq_event_percpu+0xb8/0x240) [ 238.881225] r6:eec504e0 r5:0000006d r4:eec504e0 r3:bf0067e8 [ 238.881256] [] (handle_irq_event_percpu+0x0/0x240) from [] (handle_irq_event+0x44/0x64) [ 238.881256] [] (handle_irq_event+0x0/0x64) from [] (handle_level_irq+0xe0/0x114) [ 238.881286] r6:0000006d r5:c080c14c r4:c080c100 r3:00020000 [ 238.881317] [] (handle_level_irq+0x0/0x114) from [] (asm_do_IRQ+0x90/0xd0) [ 238.881317] r5:00000000 r4:0000006d [ 238.881347] [] (asm_do_IRQ+0x0/0xd0) from [] (__irq_svc+0x50/0x134) [ 238.881378] Exception stack(0xef837e20 to 0xef837e68) [ 238.881378] 7e20: 00000001 00185610 016cc000 c00490c0 eb380000 ef800540 00000020 00004ae0 [ 238.881408] 7e40: 00000020 bf0509f4 60000013 ef837e9c ef837e40 ef837e68 c0226f0c c0298ca0 [ 238.881408] 7e60: 20000013 ffffffff [ 238.881408] r5:fa240100 r4:ffffffff [ 238.881439] [] (__kmalloc_track_caller+0x0/0x1d0) from [] (__alloc_skb+0x58/0xe8) [ 238.881469] [] (__alloc_skb+0x0/0xe8) from [] (rx_submit+0x2c/0x1d4 [usbnet]) [ 238.881500] [] (rx_submit+0x0/0x1d4 [usbnet]) from [] (usbnet_bh+0x1b4/0x250 [usbnet]) [ 238.881530] [] (usbnet_bh+0x0/0x250 [usbnet]) from [] (tasklet_action+0xb0/0x1f8) [ 238.881530] r6:00000000 r5:ef9757f0 r4:ef9757ec r3:bf051224 [ 238.881561] [] (tasklet_action+0x0/0x1f8) from [] (__do_softirq+0x140/0x290) [ 238.881561] r8:00000006 r7:00000101 r6:00000000 r5:c0806098 r4:00000001 [ 238.881591] r3:c01f907c [ 238.881622] [] (__do_softirq+0x0/0x290) from [] (run_ksoftirqd+0xd0/0x1f4) [ 238.881622] [] (run_ksoftirqd+0x0/0x1f4) from [] (kthread+0x90/0x98) [ 238.881652] r7:00000013 r6:c01f98fc r5:00000000 r4:ef831efc [ 238.881683] [] (kthread+0x0/0x98) from [] (do_exit+0x0/0x374) [ 238.881713] r6:c01f62f4 r5:c0211320 r4:ef831efc [ 238.881713] Mem-info: [ 238.881744] Normal per-cpu: [ 238.881744] CPU 0: hi: 186, btch: 31 usd: 38 [ 238.881744] CPU 1: hi: 186, btch: 31 usd: 169 [ 238.881774] HighMem per-cpu: [ 238.881774] CPU 0: hi: 90, btch: 15 usd: 66 [ 238.881774] CPU 1: hi: 90, btch: 15 usd: 86 [ 238.881805] active_anon:544 inactive_anon:71 isolated_anon:0 [ 238.881805] active_file:926 inactive_file:2538 isolated_file:0 [ 238.881805] unevictable:0 dirty:10 writeback:0 unstable:0 [ 238.881805] free:57782 slab_reclaimable:864 slab_unreclaimable:186898 [ 238.881805] mapped:632 shmem:144 pagetables:50 bounce:0 [ 238.881835] Normal free:1328kB min:3532kB low:4412kB high:5296kB active_anon:0kB inactive_anon:0kB active_file:880kB inactive_file:848kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:780288kB mlocked:0kB dirty:36kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:3456kB slab_unreclaimable:747592kB kernel_stack:392kB pagetables:200kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 238.881866] lowmem_reserve[]: 0 1904 1904 [ 238.881896] HighMem free:229800kB min:236kB low:508kB high:784kB active_anon:2176kB inactive_anon:284kB active_file:2824kB inactive_file:9304kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:243712kB mlocked:0kB dirty:4kB writeback:0kB mapped:2528kB shmem:576kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 238.881927] lowmem_reserve[]: 0 0 0 [ 238.881958] Normal: 0*4kB 4*8kB 6*16kB 0*32kB 1*64kB 1*128kB 0*256kB 2*512kB 0*1024kB 0*2048kB 0*4096kB = 1344kB [ 238.882019] HighMem: 6*4kB 2*8kB 4*16kB 4*32kB 1*64kB 1*128kB 0*256kB 2*512kB 3*1024kB 0*2048kB 55*4096kB = 229800kB [ 238.882080] 3610 total pagecache pages [ 238.882080] 0 pages in swap cache [ 238.882080] Swap cache stats: add 0, delete 0, find 0/0 [ 238.882110] Free swap = 0kB [ 238.882110] Total swap = 0kB [ 238.933776] 262144 pages of RAM [ 238.933776] 58240 free pages [ 238.933776] 10503 reserved pages [ 238.933776] 187773 slab pages [ 238.933807] 2475 pages shared [ 238.933807] 0 pages swap cached Signed-off-by: Ming Lei Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 009bba3d753e..9ab439d144ed 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -645,6 +645,7 @@ int usbnet_stop (struct net_device *net) struct driver_info *info = dev->driver_info; int retval; + clear_bit(EVENT_DEV_OPEN, &dev->flags); netif_stop_queue (net); netif_info(dev, ifdown, dev->net, @@ -1524,9 +1525,12 @@ int usbnet_resume (struct usb_interface *intf) smp_mb(); clear_bit(EVENT_DEV_ASLEEP, &dev->flags); spin_unlock_irq(&dev->txq.lock); - if (!(dev->txq.qlen >= TX_QLEN(dev))) - netif_start_queue(dev->net); - tasklet_schedule (&dev->bh); + + if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { + if (!(dev->txq.qlen >= TX_QLEN(dev))) + netif_start_queue(dev->net); + tasklet_schedule (&dev->bh); + } } return 0; } -- cgit v1.2.3 From 87e9af6cc67d842cd92b52b81f3f14e665e7ab05 Mon Sep 17 00:00:00 2001 From: Kurt Van Dijck Date: Mon, 2 May 2011 04:50:48 +0000 Subject: can: fix SJA1000 dlc for RTR packets RTR frames do have a valid data length code on CAN. The driver for SJA1000 did not handle that situation properly. Signed-off-by: Kurt Van Dijck Acked-by: Marc Kleine-Budde Signed-off-by: David S. Miller --- drivers/net/can/sja1000/sja1000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index a358ea9445a2..f501bba1fc6f 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -346,10 +346,10 @@ static void sja1000_rx(struct net_device *dev) | (priv->read_reg(priv, REG_ID2) >> 5); } + cf->can_dlc = get_can_dlc(fi & 0x0F); if (fi & FI_RTR) { id |= CAN_RTR_FLAG; } else { - cf->can_dlc = get_can_dlc(fi & 0x0F); for (i = 0; i < cf->can_dlc; i++) cf->data[i] = priv->read_reg(priv, dreg++); } -- cgit v1.2.3