- 09 Jun, 2010 2 commits
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Richard Cochran authored
This patch implements a work around for Erratum 5, "3.3 V Fiber Speed Selection." If the hardware wiring does not respect this erratum, then fiber optic mode will not work properly. Signed-off-by:
Richard Cochran <richard.cochran@omicron.at> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 08 Jun, 2010 2 commits
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Johannes Berg authored
When we receive a deauthentication frame before having successfully associated, we neither print a message nor abort assocation. The former makes it hard to debug, while the latter later causes a warning in cfg80211 when, as will typically be the case, association timed out. This warning was reported by many, e.g. in https://bugzilla.kernel.org/show_bug.cgi?id=15981, but I couldn't initially pinpoint it. I verified the fix by hacking hostapd to send a deauth frame instead of an association response. Cc: stable@kernel.org Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Tested-by:
Miles Lane <miles.lane@gmail.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Johannes Berg authored
Using ieee80211_find_sta() needs to be under RCU read lock, which iwlwifi currently misses, so fix it. Cc: stable@kernel.org Reported-by:
Reinette Chatre <reinette.chatre@intel.com> Tested-by:
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- 07 Jun, 2010 8 commits
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Holger Schurig authored
This makes "iw wlan0 dump survey" work again with mac80211-based drivers that support it, e.g. ath5k. Signed-off-by:
Holger Schurig <holgerschurig@gmail.com> Signed-off-by:
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Zhu Yi authored
Remove my name from the MAINTAINERS file. Signed-off-by:
Zhu Yi <yi.zhu@intel.com> Signed-off-by:
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Bruno Randolf authored
If the channel is not set yet and we configure the antennas just store the setting. It will be activated during the next reset, when the channel is set. Signed-off-by:
Bruno Randolf <br1@einfach.org> Signed-off-by:
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Jason Dravet authored
Add Dell WLA3310 USB wireless card, which has a Z-Com XG-705A chipset, to the USB Ids in p54usb. Signed-off-by:
Jason Dravet <dravet@hotmail.com> Tested-by:
Richard Gregory Tillmore <rtillmore@gmail.com> Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Acked-by:
Christian Lamparter <chunkeey@googlemail.com> Cc: <stable@kernel.org> Signed-off-by:
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Grazvydas Ignotas authored
wl1251_sdio_probe() error path is missing wl1251_free_hw, add it. Signed-off-by:
Grazvydas Ignotas <notasas@gmail.com> Acked-by:
Kalle Valo <kvalo@adurom.com> Cc: stable@kernel.org Signed-off-by:
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Eric Dumazet authored
ipmr_rules_exit() and ip6mr_rules_exit() free a list of items, but forget to properly remove these items from list. List head is not changed and still points to freed memory. This can trigger a fault later when icmpv6_sk_exit() is called. Fix is to either reinit list, or use list_del() to properly remove items from list before freeing them. bugzilla report : https://bugzilla.kernel.org/show_bug.cgi?id=16120 Introduced by commit d1db275d (ipv6: ip6mr: support multiple tables) and commit f0ad0860 (ipv4: ipmr: support multiple tables) Reported-by:
Alex Zhavnerchik <alex.vizor@gmail.com> Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> CC: Patrick McHardy <kaber@trash.net> Signed-off-by:
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Denis Kirjanov authored
Fix rtl_chip_info buffer overrun when we can't identify the chip. (i = ARRAY_SIZE (rtl_chip_info) in this case) Signed-off-by:
Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by:
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Jussi Kivilinna authored
Driver checks received packet is too large in asix_rx_fixup() and fails if it is. Problem is that MTU might be set larger than 1500 and asix fails to work correctly with VLAN tagged packets. The check should be 'dev->net->mtu + ETH_HLEN' instead. Tested with AX88772. Signed-off-by:
Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by:
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- 06 Jun, 2010 6 commits
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Timo Teräs authored
Some configurations need delay between the "write completed" indication and new write to work reliably. Realtek driver seems to use longer delay when polling the "write complete" bit, so it waits long enough between writes with high probability (but could probably break too). This patch adds a new udelay to make sure we wait unconditionally some time after the write complete indication. This caused a regression with XID 18000000 boards when the board specific phy configuration writing many mdio registers was added in commit 2e955856 (r8169: phy init for the 8169scd). Some of the configration mdio writes would almost always fail, and depending on failure might leave the PHY in non-working state. Signed-off-by:
Timo Teräs <timo.teras@iki.fi> Acked-off-by:
Francois Romieu <romieu@fr.zoreil.com> Signed-off-by:
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Eric Dumazet authored
Signed-off-by:
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Emmanuel Grumbach authored
Move the sysfs_create_group to iwl_ucode_callback after we have safely got the firmware. The motivation to do this comes from a warning from lockdep which detected that we request priv->mutex while holding s_active during a sysfs request (show_statistics in the example copy pasted). The reverse order exists upon request_firmware: request_firmware which is a sysfs operation that requires s_active is run under priv->mutex. This ensures that we don't get sysfs request before we finish to request the firmware, avoiding this deadlock. ======================================================= [ INFO: possible circular locking dependency detected ] ------------------------------------------------------- cat/2595 is trying to acquire lock: (&priv->mutex){+.+.+.}, at: [<facfa598>] show_statistics+0x48/0x100 [iwlagn] but task is already holding lock: (s_active){++++.+}, at: [<c0580ebd>] sysfs_get_active_two+0x1d/0x50 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (s_active){++++.+}: [<c0489b74>] __lock_acquire+0xc44/0x1230 [<c048a1ed>] lock_acquire+0x8d/0x110 [<c0581499>] sysfs_addrm_finish+0xe9/0x180 [<c057f64a>] sysfs_hash_and_remove+0x4a/0x80 [<c05829d4>] sysfs_remove_group+0x44/0xd0 [<c0714b75>] dpm_sysfs_remove+0x15/0x20 [<c070dac8>] device_del+0x38/0x170 [<c070dc1e>] device_unregister+0x1e/0x60 [<c071838d>] _request_firmware+0x29d/0x550 [<c07186c7>] request_firmware+0x17/0x20 [<fad01bf1>] iwl_mac_start+0xb1/0x1230 [iwlagn] [<fa46ba06>] ieee80211_open+0x436/0x6f0 [mac80211] [<c0808cd2>] dev_open+0x92/0xf0 [<c0808b2b>] dev_change_flags+0x7b/0x190 [<c08148e8>] do_setlink+0x178/0x3b0 [<c0815169>] rtnl_setlink+0xf9/0x130 [<c081453b>] rtnetlink_rcv_msg+0x1bb/0x1f0 [<c0827ce6>] netlink_rcv_skb+0x86/0xa0 [<c081436c>] rtnetlink_rcv+0x1c/0x30 [<c08279c3>] netlink_unicast+0x263/0x290 [<c0828768>] netlink_sendmsg+0x1c8/0x2a0 [<c07f85fd>] sock_sendmsg+0xcd/0x100 [<c07f964d>] sys_sendmsg+0x15d/0x290 [<c07f9e6b>] sys_socketcall+0xeb/0x2a0 [<c040ad9f>] sysenter_do_call+0x12/0x38 -> #0 (&priv->mutex){+.+.+.}: [<c0489f84>] __lock_acquire+0x1054/0x1230 [<c048a1ed>] lock_acquire+0x8d/0x110 [<c08bb358>] __mutex_lock_common+0x58/0x470 [<c08bb84a>] mutex_lock_nested+0x3a/0x50 [<facfa598>] show_statistics+0x48/0x100 [iwlagn] [<c070d219>] dev_attr_show+0x29/0x50 [<c057fecd>] sysfs_read_file+0xdd/0x190 [<c052880f>] vfs_read+0x9f/0x190 [<c0528d22>] sys_read+0x42/0x70 [<c040ad9f>] sysenter_do_call+0x12/0x38 other info that might help us debug this: 3 locks held by cat/2595: #0: (&buffer->mutex){+.+.+.}, at: [<c057fe25>] sysfs_read_file+0x35/0x190 #1: (s_active){++++.+}, at: [<c0580ecd>] sysfs_get_active_two+0x2d/0x50 #2: (s_active){++++.+}, at: [<c0580ebd>] sysfs_get_active_two+0x1d/0x50 stack backtrace: Pid: 2595, comm: cat Not tainted 2.6.33-tp-rc4 #2 Call Trace: [<c08b99ab>] ? printk+0x1d/0x22 [<c0487752>] print_circular_bug+0xc2/0xd0 [<c0489f84>] __lock_acquire+0x1054/0x1230 [<c0478d81>] ? sched_clock_cpu+0x121/0x180 [<c048a1ed>] lock_acquire+0x8d/0x110 [<facfa598>] ? show_statistics+0x48/0x100 [iwlagn] [<c08bb358>] __mutex_lock_common+0x58/0x470 [<facfa598>] ? show_statistics+0x48/0x100 [iwlagn] [<c08bb84a>] mutex_lock_nested+0x3a/0x50 [<facfa598>] ? show_statistics+0x48/0x100 [iwlagn] [<facfa598>] show_statistics+0x48/0x100 [iwlagn] [<c0580cf9>] ? sysfs_get_active+0x69/0xb0 [<facfa550>] ? show_statistics+0x0/0x100 [iwlagn] [<c070d219>] dev_attr_show+0x29/0x50 [<c057fecd>] sysfs_read_file+0xdd/0x190 [<c05ff314>] ? security_file_permission+0x14/0x20 [<c0528242>] ? rw_verify_area+0x62/0xd0 [<c052880f>] vfs_read+0x9f/0x190 [<c047745b>] ? up_read+0x1b/0x30 [<c057fdf0>] ? sysfs_read_file+0x0/0x190 [<c04af3b4>] ? audit_syscall_entry+0x1f4/0x220 [<c0528d22>] sys_read+0x42/0x70 [<c040ad9f>] sysenter_do_call+0x12/0x38 Signed-off-by:Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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Wey-Yi Guy authored
Add "Wey-Yi Guy" to maintainers list for iwlwifi. Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
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Abhijeet Kolekar authored
Port of internal scan to iwl3945 missed introduction of iwl3945_get_single_channel_for_scan. Fix the following bug by introducing the iwl3945_get_single_channel_for_scan http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2208Signed-off-by:
Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by:
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Reinette Chatre authored
We learn from http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1834 and https://bugzilla.redhat.com/show_bug.cgi?id=589777 that 3945 can also suffer from a stuck command queue. Enable stuck queue detection for iwl3945 to enable recovery in this case. Signed-off-by:
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- 05 Jun, 2010 1 commit
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Eric Dumazet authored
With mtu=9000, mld_newpack() use order-2 GFP_ATOMIC allocations, that are very unreliable, on machines where PAGE_SIZE=4K Limit allocated skbs to be at most one page. (order-0 allocations) Signed-off-by:
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- 04 Jun, 2010 11 commits
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Huang Weiyi authored
Remove duplicated #include('s) in drivers/net/wan/x25_asy.c Signed-off-by:Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by:
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Eric Dumazet authored
Its better to make a route lookup in appropriate namespace. Signed-off-by:
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Eric Dumazet authored
I believe a moderate SYN flood attack can corrupt RFS flow table (rps_sock_flow_table), making RPS/RFS much less effective. Even in a normal situation, server handling short lived sessions suffer from bad steering for the first data packet of a session, if another SYN packet is received for another session. We do following action in tcp_v4_rcv() : sock_rps_save_rxhash(sk, skb->rxhash); We should _not_ do this if sk is a LISTEN socket, as about each packet received on a LISTEN socket has a different rxhash than previous one. -> RPS_NO_CPU markers are spread all over rps_sock_flow_table. Also, it makes sense to protect sk->rxhash field changes with socket lock (We currently can change it even if user thread owns the lock and might use rxhash) This patch moves sock_rps_save_rxhash() to a sock locked section, and only for non LISTEN sockets. Signed-off-by:
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Ben McKeegan authored
Fix bug in multilink fragment size calculation introduced by commit 9c705260 "ppp: ppp_mp_explode() redesign" Signed-off-by:
Ben McKeegan <ben@netservers.co.uk> Signed-off-by:
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Florian Westphal authored
syncookies default to on since e994b7c9 (tcp: Don't make syn cookies initial setting depend on CONFIG_SYSCTL). Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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John Fastabend authored
Only check pfc bits in hang logic if PFC is enabled. Previously, if DCB was enabled but PFC was disabled the incorrect pause bits would be checked. Signed-off-by:
John Fastabend <john.r.fastabend@intel.com> Acked-by:
Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Steffen Klassert authored
xfrm triggers a warning if dst_pop() drops a refcount on a noref dst. This patch changes dst_pop() to skb_dst_pop(). skb_dst_pop() drops the refcnt only on a refcounted dst. Also we don't clone the child dst_entry, so it is not refcounted and we can use skb_dst_set_noref() in xfrm_output_one(). Signed-off-by:
Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
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Bob Copeland authored
Commit 56d1de0a, "ath5k: clean up filter flags setting" introduced a regression in monitor mode such that the promisc filter flag would get lost. Although we set the promisc flag when it changed, we did not preserve it across subsequent calls to configure_filter. This patch restores the original functionality. Cc: stable@kernel.org Bisected-by: weedy2887@gmail.com Tested-by: weedy2887@gmail.com Tested-by:
Rick Farina <sidhayn@gmail.com> Signed-off-by:
Bob Copeland <me@bobcopeland.com> Signed-off-by:
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Tobias Doerffel authored
When building a kernel with CONFIG_PM=y but neither suspend nor hibernate support, the compiler complains about the static functions ath5k_pci_suspend() and ath5k_pci_resume() not being used: drivers/net/wireless/ath/ath5k/base.c:713:12: warning: ‘ath5k_pci_suspend’ defined but not used drivers/net/wireless/ath/ath5k/base.c:722:12: warning: ‘ath5k_pci_resume’ defined but not used Depending on CONFIG_PM_SLEEP rather than CONFIG_PM fixes the issue. Signed-off-by:
Tobias Doerffel <tobias.doerffel@gmail.com> Signed-off-by:
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Johannes Berg authored
Processing an association response could take a bit of time while we set up the hardware etc. During that time, the AP might already send a blockack request. If this happens very quickly on a fairly slow machine, we can end up processing the blockack request before the association processing has finished. Since the blockack processing cannot sleep right now, we also cannot make it wait in the driver. As a result, sometimes on slow machines the iwlagn driver gets totally confused, and no traffic can pass when the aggregation setup was done before the assoc setup completed. I'm working on a proper fix for this, which involves queuing all blockack category action frames from a work struct, and also allowing the ampdu_action driver callback to sleep, which will generally clean up the code and make things easier. However, this is a very involved and complex change. To fix the problem at hand in a way that can also be backported to stable, I've come up with this patch. Here, I simply process all aggregation action frames from the managed interface skb queue, which means their processing will be serialized with processing the association response, thereby fixing the problem. Signed-off-by:
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John W. Linville authored
This reverts commit 15920d8a. This patch was discovered to cause some hostap devices to fail to initialized. https://bugzilla.kernel.org/show_bug.cgi?id=16111Signed-off-by:
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- 03 Jun, 2010 9 commits
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Jeff Kirsher authored
Based on original patch from Shirley Ma <xma@us.ibm.com> Return IXGBE_ERR_RAR_INDEX when RAR index is out of range, instead of returning IXGBE_SUCCESS. CC: Shirley Ma <xma@us.ibm.com> Signed-off-by:
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Changli Gao authored
access skb->data safely we should use skb_header_pointer() and skb_store_bits() to access skb->data to handle small or non-linear skbs. Signed-off-by:
Changli Gao <xiaosuo@gmail.com> ---- net/sched/act_pedit.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) Signed-off-by:
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Ben Hutchings authored
This exposes the port number to userland through sysfs. Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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Roland Dreier authored
Probably no one has used this driver on big-endian systems, since it was setting up descriptor swapping if CONFIG_BIG_ENDIAN is set, which it never is, since that symbol is not mentioned anywhere else in the kernel source. Switch this test to a check for __BIG_ENDIAN so it has a chance at working. Signed-off-by:
Roland Dreier <rolandd@cisco.com> Acked-by:
Jeff Garzik <jgarzik@redhat.com> Signed-off-by:
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Dan Carpenter authored
copy_to_user() returns the number of bytes remaining but we want to return a negative error code here. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Dan Carpenter authored
copy_from_user() returns the number of bytes remaining but we should return -EFAULT here. The error code gets returned to the user. Both old_capi_manufacturer() and capi20_manufacturer() had other places that already returned -EFAULT so this won't break anything. Signed-off-by:
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Dan Carpenter authored
The bitwise negate is intended here. With the logical negate the condition is always false. Signed-off-by:
Bruce Allan <bruce.w.allan@intel.com> Signed-off-by:
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Ben Hutchings authored
A single shared memory region used to communicate with firmware is mapped into both PCI PFs of the SFC9020 and SFL9021. Drivers must be able to identify which port they are addressing in order to use the correct sub-region. Currently we use the PCI function number, but the PCI address may be virtualised. Use the CS_PORT_NUM register field defined for just this purpose. Signed-off-by:
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- 02 Jun, 2010 1 commit
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Changli Gao authored
use skb_header_pointer() to dereference data safely the original skb->data dereference isn't safe, as there isn't any skb->len or skb_is_nonlinear() check. skb_header_pointer() is used instead in this patch. And when the skb isn't long enough, we terminate the function u32_classify() immediately with -1. Signed-off-by:
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