Marcel Holtmann [Sat, 9 May 2009 01:20:43 +0000 (18:20 -0700)]
Bluetooth: Fix wrong module refcount when connection setup fails
The module refcount is increased by hci_dev_hold() call in hci_conn_add()
and decreased by hci_dev_put() call in del_conn(). In case the connection
setup fails, hci_dev_put() is never called.
Procedure to reproduce the issue:
# hciconfig hci0 up
# lsmod | grep btusb -> "used by" refcount = 1
# hcitool cc <non-exisiting bdaddr> -> will get timeout
# lsmod | grep btusb -> "used by" refcount = 2
# hciconfig hci0 down
# lsmod | grep btusb -> "used by" refcount = 1
# rmmod btusb -> ERROR: Module btusb is in use
The hci_dev_put() call got moved into del_conn() with the 2.6.25 kernel
to fix an issue with hci_dev going away before hci_conn. However that
change was wrong and introduced this problem.
When calling hci_conn_del() it has to call hci_dev_put() after freeing
the connection details. This handling should be fully symmetric. The
execution of del_conn() is done in a work queue and needs it own calls
to hci_dev_hold() and hci_dev_put() to ensure that the hci_dev stays
until the connection cleanup has been finished.
Based on a report by Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Tested-by: Bing Zhao <bzhao@marvell.com>
David S. Miller [Sat, 9 May 2009 20:20:46 +0000 (13:20 -0700)]
Merge branch 'net-fixes' of git://git./linux/kernel/git/chris/linux-2.6
Florian Westphal [Fri, 8 May 2009 11:49:11 +0000 (11:49 +0000)]
bonding: fix panic if initialization fails
If module initialisation failed (e.g. because the bonding sysfs entry
cannot be created), kernel panics:
IP: [<
ffffffff8024910a>] destroy_workqueue+0x2d/0x146
Call Trace:
[<
ffffffff808268c4>] bond_destructor+0x28/0x78
[<
ffffffff80b64471>] netdev_run_todo+0x231/0x25a
[<
ffffffff80b6dbcd>] rtnl_unlock+0x9/0xb
[<
ffffffff81567907>] bonding_init+0x83e/0x84a
Remove the calls to bond_work_cancel_all() and destroy_workqueue();
both are also called/scheduled via bond_free_all().
bond_destroy_sysfs is unecessary because the sysfs entry has
not been created in the error case.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Krzysztof Hałasa [Mon, 4 May 2009 19:31:52 +0000 (21:31 +0200)]
IXP4xx: complete Ethernet netdev setup before calling register_netdev().
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Krzysztof Hałasa [Tue, 28 Apr 2009 12:54:07 +0000 (14:54 +0200)]
IXP4xx: use "ENODEV" instead of "ENOSYS" in module initialization.
ENOSYS makes modutils complain about missing kernel module support.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Simon Horman [Wed, 6 May 2009 15:02:29 +0000 (15:02 +0000)]
ipvs: Fix IPv4 FWMARK virtual services
This fixes the use of fwmarks to denote IPv4 virtual services
which was unfortunately broken as a result of the integration
of IPv6 support into IPVS, which was included in 2.6.28.
The problem arises because fwmarks are stored in the 4th octet
of a union nf_inet_addr .all, however in the case of IPv4 only
the first octet, corresponding to .ip, is assigned and compared.
In other words, using .all = { 0, 0, 0, htonl(svc->fwmark) always
results in a value of 0 (32bits) being stored for IPv4. This means
that one fwmark can be used, as it ends up being mapped to 0, but things
break down when multiple fwmarks are used, as they all end up being mapped
to 0.
As fwmarks are 32bits a reasonable fix seems to be to just store the fwmark
in .ip, and comparing and storing .ip when fwmarks are used.
This patch makes the assumption that in calls to ip_vs_ct_in_get()
and ip_vs_sched_persist() if the proto parameter is IPPROTO_IP then
we are dealing with an fwmark. I believe this is valid as ip_vs_in()
does fairly strict filtering on the protocol and IPPROTO_IP should
not be used in these calls unless explicitly passed when making
these calls for fwmarks in ip_vs_sched_persist().
Tested-by: Fabien Duchêne <fabien.duchene@student.uclouvain.be>
Cc: Joseph Mack NA3T <jmack@wm7d.net>
Cc: Julius Volz <julius.volz@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 May 2009 19:45:26 +0000 (12:45 -0700)]
ipv4: Make INET_LRO a bool instead of tristate.
This code is used as a library by several device drivers,
which select INET_LRO.
If some are modules and some are statically built into the
kernel, we get build failures if INET_LRO is modular.
Signed-off-by: David S. Miller <davem@davemloft.net>
Ashish Karkare [Thu, 7 May 2009 23:31:01 +0000 (16:31 -0700)]
net: remove stale reference to fastroute from Kconfig help text
Signed-off-by: Ashish Karkare <akarkare@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lennert Buytenhek [Wed, 6 May 2009 23:49:18 +0000 (16:49 -0700)]
net: update skb_recycle_check() for hardware timestamping changes
Commit
ac45f602ee3d1b6f326f68bc0c2591ceebf05ba4 ("net: infrastructure
for hardware time stamping") added two skb initialization actions to
__alloc_skb(), which need to be added to skb_recycle_check() as well.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Wed, 6 May 2009 23:46:47 +0000 (16:46 -0700)]
bnx2: Fix panic in bnx2_poll_work().
Add barrier() to bnx2_get_hw_{tx|rx}_cons() to fix this issue:
http://bugzilla.kernel.org/show_bug.cgi?id=12698
This issue was reported by multiple i386 users. Without barrier(),
the compiled code looks like the following where %eax contains the
address of the tx_cons or rx_cons in the DMA status block. The
status block contents can change between the cmpb and the movzwl
instruction. The driver would crash if the value was not 0xff during
the cmpb instruction, but changed to 0xff during the movzwl
instruction.
6828: 80 38 ff cmpb $0xff,(%eax)
682b: 0f b7 10 movzwl (%eax),%edx
With the added barrier(), the compiled code now looks correct:
683d: 0f b7 10 movzwl (%eax),%edx
6840: 0f b6 c2 movzbl %dl,%eax
6843: 3d ff 00 00 00 cmp $0xff,%eax
Thanks to Pascal de Bruijn <pmjdebruijn@pcode.nl> for reporting the
problem and Holger Noefer <hnoefer@pironet-ndh.com> for patiently
testing test patches for us.
Also updated version to 2.0.1.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 6 May 2009 23:45:07 +0000 (16:45 -0700)]
net-sched: fix bfifo default limit
When no limit is given, the bfifo uses a default of tx_queue_len * mtu.
Packets handled by qdiscs include the link layer header, so this should
be taken into account, similar to what other qdiscs do.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Wed, 6 May 2009 23:43:48 +0000 (16:43 -0700)]
igb: resolve panic on shutdown when SR-IOV is enabled
The setup_rctl call was making a call into the ring structure after it had
been freed. This was causing a panic on shutdown. This call wasn't
necessary since it is possible to get the needed index from
adapter->vfs_allocated_count.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 6 May 2009 23:42:19 +0000 (16:42 -0700)]
Merge branch 'linux-2.6.30.y' of git://git./linux/kernel/git/inaky/wimax
Inaky Perez-Gonzalez [Sat, 2 May 2009 09:30:28 +0000 (02:30 -0700)]
wimax: oops: wimax_dev_add() is the only one that can initialize the state
When a new wimax_dev is created, it's state has to be __WIMAX_ST_NULL
until wimax_dev_add() is succesfully called. This allows calls into
the stack that happen before said time to be rejected.
Until now, the state was being set (by mistake) to UNINITIALIZED,
which was allowing calls such as wimax_report_rfkill_hw() to go
through even when a call to wimax_dev_add() had failed; that was
causing an oops when touching uninitialized data.
This situation is normal when the device starts reporting state before
the whole initialization has been completed. It just has to be dealt
with.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Inaky Perez-Gonzalez [Tue, 31 Mar 2009 00:50:17 +0000 (17:50 -0700)]
wimax: fix oops if netlink fails to add attribute
When sending a message to user space using wimax_msg(), if nla_put()
fails, correctly interpret the return code from wimax_msg_alloc() as
an err ptr and return the error code instead of crashing (as it is
assuming than non-NULL means the pointer is ok).
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Marcel Holtmann [Tue, 5 May 2009 20:09:01 +0000 (13:09 -0700)]
Bluetooth: Move dev_set_name() to a context that can sleep
Setting the name of a sysfs device has to be done in a context that can
actually sleep. It allocates its memory with GFP_KERNEL. Previously it
was a static (size limited) string and that got changed to accommodate
longer device names. So move the dev_set_name() just before calling
device_add() which is executed in a work queue.
This fixes the following error:
[ 110.012125] BUG: sleeping function called from invalid context at mm/slub.c:1595
[ 110.012135] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper
[ 110.012141] 2 locks held by swapper/0:
[ 110.012145] #0: (hci_task_lock){++.-.+}, at: [<
ffffffffa01f822f>] hci_rx_task+0x2f/0x2d0 [bluetooth]
[ 110.012173] #1: (&hdev->lock){+.-.+.}, at: [<
ffffffffa01fb9e2>] hci_event_packet+0x72/0x25c0 [bluetooth]
[ 110.012198] Pid: 0, comm: swapper Tainted: G W
2.6.30-rc4-g953cdaa #1
[ 110.012203] Call Trace:
[ 110.012207] <IRQ> [<
ffffffff8023eabd>] __might_sleep+0x14d/0x170
[ 110.012228] [<
ffffffff802cfbe1>] __kmalloc+0x111/0x170
[ 110.012239] [<
ffffffff803c2094>] kvasprintf+0x64/0xb0
[ 110.012248] [<
ffffffff803b7a5b>] kobject_set_name_vargs+0x3b/0xa0
[ 110.012257] [<
ffffffff80465326>] dev_set_name+0x76/0xa0
[ 110.012273] [<
ffffffffa01fb9e2>] ? hci_event_packet+0x72/0x25c0 [bluetooth]
[ 110.012289] [<
ffffffffa01ffc1d>] hci_conn_add_sysfs+0x3d/0x70 [bluetooth]
[ 110.012303] [<
ffffffffa01fba2c>] hci_event_packet+0xbc/0x25c0 [bluetooth]
[ 110.012312] [<
ffffffff80516eb0>] ? sock_def_readable+0x80/0xa0
[ 110.012328] [<
ffffffffa01fee0c>] ? hci_send_to_sock+0xfc/0x1c0 [bluetooth]
[ 110.012343] [<
ffffffff80516eb0>] ? sock_def_readable+0x80/0xa0
[ 110.012347] [<
ffffffff805e88c5>] ? _read_unlock+0x75/0x80
[ 110.012354] [<
ffffffffa01fee0c>] ? hci_send_to_sock+0xfc/0x1c0 [bluetooth]
[ 110.012360] [<
ffffffffa01f8403>] hci_rx_task+0x203/0x2d0 [bluetooth]
[ 110.012365] [<
ffffffff80250ab5>] tasklet_action+0xb5/0x160
[ 110.012369] [<
ffffffff8025116c>] __do_softirq+0x9c/0x150
[ 110.012372] [<
ffffffff805e850f>] ? _spin_unlock+0x3f/0x80
[ 110.012376] [<
ffffffff8020cbbc>] call_softirq+0x1c/0x30
[ 110.012380] [<
ffffffff8020f01d>] do_softirq+0x8d/0xe0
[ 110.012383] [<
ffffffff80250df5>] irq_exit+0xc5/0xe0
[ 110.012386] [<
ffffffff8020e71d>] do_IRQ+0x9d/0x120
[ 110.012389] [<
ffffffff8020c3d3>] ret_from_intr+0x0/0xf
[ 110.012391] <EOI> [<
ffffffff80431832>] ? acpi_idle_enter_bm+0x264/0x2a6
[ 110.012399] [<
ffffffff80431828>] ? acpi_idle_enter_bm+0x25a/0x2a6
[ 110.012403] [<
ffffffff804f50d5>] ? cpuidle_idle_call+0xc5/0x130
[ 110.012407] [<
ffffffff8020a4b4>] ? cpu_idle+0xc4/0x130
[ 110.012411] [<
ffffffff805d2268>] ? rest_init+0x88/0xb0
[ 110.012416] [<
ffffffff807e2fbd>] ? start_kernel+0x3b5/0x412
[ 110.012420] [<
ffffffff807e2281>] ? x86_64_start_reservations+0x91/0xb5
[ 110.012424] [<
ffffffff807e2394>] ? x86_64_start_kernel+0xef/0x11b
Based on a report by Davide Pesavento <davidepesa@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Tested-by: Hugo Mildenberger <hugo.mildenberger@namir.de>
Tested-by: Bing Zhao <bzhao@marvell.com>
David S. Miller [Tue, 5 May 2009 19:00:53 +0000 (12:00 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/kaber/nf-2.6
David S. Miller [Tue, 5 May 2009 18:56:07 +0000 (11:56 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
Pablo Neira Ayuso [Tue, 5 May 2009 15:48:26 +0000 (17:48 +0200)]
netfilter: ctnetlink: fix wrong message type in user updates
This patch fixes the wrong message type that are triggered by
user updates, the following commands:
(term1)# conntrack -I -p tcp -s 1.1.1.1 -d 2.2.2.2 -t 10 --sport 10 --dport 20 --state LISTEN
(term1)# conntrack -U -p tcp -s 1.1.1.1 -d 2.2.2.2 -t 10 --sport 10 --dport 20 --state SYN_SENT
(term1)# conntrack -U -p tcp -s 1.1.1.1 -d 2.2.2.2 -t 10 --sport 10 --dport 20 --state SYN_RECV
only trigger event message of type NEW, when only the first is NEW
while others should be UPDATE.
(term2)# conntrack -E
[NEW] tcp 6 10 LISTEN src=1.1.1.1 dst=2.2.2.2 sport=10 dport=20 [UNREPLIED] src=2.2.2.2 dst=1.1.1.1 sport=20 dport=10 mark=0
[NEW] tcp 6 10 SYN_SENT src=1.1.1.1 dst=2.2.2.2 sport=10 dport=20 [UNREPLIED] src=2.2.2.2 dst=1.1.1.1 sport=20 dport=10 mark=0
[NEW] tcp 6 10 SYN_RECV src=1.1.1.1 dst=2.2.2.2 sport=10 dport=20 [UNREPLIED] src=2.2.2.2 dst=1.1.1.1 sport=20 dport=10 mark=0
This patch also removes IPCT_REFRESH from the bitmask since it is
not of any use.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Pablo Neira Ayuso [Tue, 5 May 2009 15:46:07 +0000 (17:46 +0200)]
netfilter: xt_cluster: fix use of cluster match with 32 nodes
This patch fixes a problem when you use 32 nodes in the cluster
match:
% iptables -I PREROUTING -t mangle -i eth0 -m cluster \
--cluster-total-nodes 32 --cluster-local-node 32 \
--cluster-hash-seed 0xdeadbeef -j MARK --set-mark 0xffff
iptables: Invalid argument. Run `dmesg' for more information.
% dmesg | tail -1
xt_cluster: this node mask cannot be higher than the total number of nodes
The problem is related to this checking:
if (info->node_mask >= (1 << info->total_nodes)) {
printk(KERN_ERR "xt_cluster: this node mask cannot be "
"higher than the total number of nodes\n");
return false;
}
(1 << 32) is 1. Thus, the checking fails.
BTW, I said this before but I insist: I have only tested the cluster
match with 2 nodes getting ~45% extra performance in an active-active setup.
The maximum limit of 32 nodes is still completely arbitrary. I'd really
appreciate if people that have more nodes in their setups let me know.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Christoph Paasch [Tue, 5 May 2009 13:32:16 +0000 (15:32 +0200)]
netfilter: ip6t_ipv6header: fix match on packets ending with NEXTHDR_NONE
As packets ending with NEXTHDR_NONE don't have a last extension header,
the check for the length needs to be after the check for NEXTHDR_NONE.
Signed-off-by: Christoph Paasch <christoph.paasch@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Patrick McHardy [Tue, 5 May 2009 12:31:12 +0000 (14:31 +0200)]
netfilter: add missing linux/types.h include to xt_LED.h
Pointed out by Dave Miller:
CHECK include/linux/netfilter (57 files)
/home/davem/src/GIT/net-2.6/usr/include/linux/netfilter/xt_LED.h:6: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Patrick McHardy <kaber@trash.net>
David S. Miller [Tue, 5 May 2009 04:31:29 +0000 (21:31 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/holtmann/bluetooth-2.6
Jesse Brandeburg [Mon, 4 May 2009 11:19:42 +0000 (11:19 +0000)]
e1000: fix virtualization bug
a recent fix to e1000 (commit
15b2bee2) caused KVM/QEMU/VMware based
virtualized e1000 interfaces to begin failing when resetting.
This is because the driver in a virtual environment doesn't
get to run instructions *AT ALL* when an interrupt is asserted.
The interrupt code runs immediately and this recent bug fix
allows an interrupt to be possible when the interrupt handler
will reject it (due to the new code), when being called from
any path in the driver that holds the E1000_RESETTING flag.
the driver should use the __E1000_DOWN flag instead of the
__E1000_RESETTING flag to prevent interrupt execution
while reconfiguring the hardware.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jay Vosburgh [Mon, 4 May 2009 09:03:37 +0000 (09:03 +0000)]
bonding: fix alb mode locking regression
Fix locking issue in alb MAC address management; removed
incorrect locking and replaced with correct locking. This bug was
introduced in commit
059fe7a578fba5bbb0fdc0365bfcf6218fa25eb0
("bonding: Convert locks to _bh, rework alb locking for new locking")
Bug reported by Paul Smith <paul@mad-scientist.net>, who also
tested the fix.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marcel Holtmann [Sun, 3 May 2009 01:24:06 +0000 (18:24 -0700)]
Bluetooth: Fix issue with sysfs handling for connections
Due to a semantic changes in flush_workqueue() the current approach of
synchronizing the sysfs handling for connections doesn't work anymore. The
whole approach is actually fully broken and based on assumptions that are
no longer valid.
With the introduction of Simple Pairing support, the creation of low-level
ACL links got changed. This change invalidates the reason why in the past
two independent work queues have been used for adding/removing sysfs
devices. The adding of the actual sysfs device is now postponed until the
host controller successfully assigns an unique handle to that link. So
the real synchronization happens inside the controller and not the host.
The only left-over problem is that some internals of the sysfs device
handling are not initialized ahead of time. This leaves potential access
to invalid data and can cause various NULL pointer dereferences. To fix
this a new function makes sure that all sysfs details are initialized
when an connection attempt is made. The actual sysfs device is only
registered when the connection has been successfully established. To
avoid a race condition with the registration, the check if a device is
registered has been moved into the removal work.
As an extra protection two flush_work() calls are left in place to
make sure a previous add/del work has been completed first.
Based on a report by Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
Tested-by: Roger Quadros <ext-roger.quadros@nokia.com>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Jiri Slaby [Mon, 4 May 2009 16:10:28 +0000 (18:10 +0200)]
mac80211: pid, fix memory corruption
pid doesn't count with some band having more bitrates than the one
associated the first time.
Fix that by counting the maximal available bitrate count and allocate
big enough space.
Secondly, fix touching uninitialized memory which causes panics.
Index sucked from this random memory points to the hell.
The fix is to sort the rates on each band change.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Jiri Slaby [Mon, 4 May 2009 16:04:55 +0000 (18:04 +0200)]
mac80211: minstrel, fix memory corruption
minstrel doesn't count max rate count in fact, since it doesn't use
a loop variable `i' and hence allocs space only for bitrates found in
the first band.
Fix it by involving the `i' as an index so that it traverses all the
bands now and finds the real max bitrate count.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Sat, 2 May 2009 05:17:27 +0000 (01:17 -0400)]
cfg80211: fix comment on regulatory hint processing
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Sat, 2 May 2009 04:34:15 +0000 (00:34 -0400)]
cfg80211: fix bug while trying to process beacon hints on init
During initialization we would not have received any beacons
so skip processing reg beacon hints, also adds a check to
reg_is_world_roaming() for last_request before accessing its
fields.
This should fix this:
BUG: unable to handle kernel NULL pointer dereference at
IP: [<
e0171332>] wiphy_update_regulatory+0x20f/0x295
*pdpt =
0000000008bf1001 *pde =
0000000000000000
Oops: 0000 [#1]
last sysfs file: /sys/class/backlight/eeepc/brightness
Modules linked in: ath5k(+) mac80211 led_class cfg80211
go_bit cfbcopyarea cfbimgblt cfbfillrect ipv6
ydev usual_tables(P) snd_hda_codec_realtek snd_hda_intel
nd_hwdep uhci_hcd snd_pcm_oss snd_mixer_oss i2c_i801
e serio_raw i2c_core pcspkr atl2 snd_pcm intel_agp
re agpgart eeepc_laptop snd_page_alloc ac video backlight
rfkill button processor evdev thermal fan ata_generic
Pid: 2909, comm: modprobe Tainted: Pc #112) 701
EIP: 0060:[<
e0171332>] EFLAGS:
00010246 CPU: 0
EIP is at wiphy_update_regulatory+0x20f/0x295 [cfg80211]
EAX:
00000000 EBX:
c5da0000 ECX:
00000000 EDX:
c5da0060
ESI:
0000001a EDI:
c5da0060 EBP:
df3bdd70 ESP:
df3bdd40
DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Process modprobe (pid: 2909, ti=
df3bc000 task=
c5d030000)
Stack:
df3bdd90 c5da0060 c04277e0 00000001 00000044 c04277e402
00000002 c5da0000 0000001a c5da0060 df3bdda8 e01706a2 02
00000282 000080d0 00000068 c5d53500 00000080 0000028240
Call Trace:
[<
e01706a2>] ? wiphy_register+0x122/0x1b7 [cfg80211]
[<
e0328e02>] ? ieee80211_register_hw+0xd8/0x346
[<
e06a7c9f>] ? ath5k_hw_set_bssid_mask+0x71/0x78 [ath5k]
[<
e06b0c52>] ? ath5k_pci_probe+0xa5c/0xd0a [ath5k]
[<
c01a6037>] ? sysfs_find_dirent+0x16/0x27
[<
c01fec95>] ? local_pci_probe+0xe/0x10
[<
c01ff526>] ? pci_device_probe+0x48/0x66
[<
c024c9fd>] ? driver_probe_device+0x7f/0xf2
[<
c024cab3>] ? __driver_attach+0x43/0x5f
[<
c024c0af>] ? bus_for_each_dev+0x39/0x5a
[<
c024c8d0>] ? driver_attach+0x14/0x16
[<
c024ca70>] ? __driver_attach+0x0/0x5f
[<
c024c5b3>] ? bus_add_driver+0xd7/0x1e7
[<
c024ccb9>] ? driver_register+0x7b/0xd7
[<
c01ff827>] ? __pci_register_driver+0x32/0x85
[<
e00a8018>] ? init_ath5k_pci+0x18/0x30 [ath5k]
[<
c0101131>] ? _stext+0x49/0x10b
[<
e00a8000>] ? init_ath5k_pci+0x0/0x30 [ath5k]
[<
c012f452>] ? __blocking_notifier_call_chain+0x40/0x4c
[<
c013a714>] ? sys_init_module+0x87/0x18b
[<
c0102804>] ? sysenter_do_call+0x12/0x22
Code: b8 da 17 e0 83 c0 04 e8 92 f9 ff ff 84 c0 75 2a 8b
85 c0 74 0c 83 c0 04 e8 7c f9 ff ff 84 c0 75 14 a1 bc da
4 03 74 66 8b 4d d4 80 79 08 00 74 5d a1 e0 d2 17 e0 48
EIP: [<
e0171332>] wiphy_update_regulatory+0x20f/0x295
SP 0068:
df3bdd40
CR2:
0000000000000004
---[ end trace
830f2dd2a95fd1a8 ]---
This issue is hard to reproduce, but it was noticed and discussed on
this thread:
http://marc.info/?t=
123938022700005&r=1&w=2
Cc: stable@kernel.org
Reported-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Fri, 1 May 2009 22:44:50 +0000 (18:44 -0400)]
cfg80211: fix race condition with wiphy_apply_custom_regulatory()
We forgot to lock using the cfg80211_mutex in
wiphy_apply_custom_regulatory(). Without the lock
there is possible race between processing a reply from CRDA
and a driver calling wiphy_apply_custom_regulatory(). During
the processing of the reply from CRDA we free last_request and
wiphy_apply_custom_regulatory() eventually accesses an
element from last_request in the through freq_reg_info_regd().
This is very difficult to reproduce (I haven't), it takes us
3 hours and you need to be banging hard, but the race is obvious
by looking at the code.
This should only affect those who use this caller, which currently
is ath5k, ath9k, and ar9170.
EIP: 0060:[<
f8ebec50>] EFLAGS:
00210282 CPU: 1
EIP is at freq_reg_info_regd+0x24/0x121 [cfg80211]
EAX:
00000000 EBX:
f7ca0060 ECX:
f5183d94 EDX:
0024cde0
ESI:
f8f56edc EDI:
00000000 EBP:
00000000 ESP:
f5183d44
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process modprobe (pid: 14617, ti=
f5182000 task=
f3934d10 task.ti=
f5182000)
Stack:
c0505300 f7ca0ab4 f5183d94 0024cde0 f8f403a6 f8f63160 f7ca0060 00000000
00000000 f8ebedf8 f5183d90 f8f56edc 00000000 00000004 00000f40 f8f56edc
f7ca0060 f7ca1234 00000000 00000000 00000000 f7ca14f0 f7ca0ab4 f7ca1289
Call Trace:
[<
f8ebedf8>] wiphy_apply_custom_regulatory+0x8f/0x122 [cfg80211]
[<
f8f3f798>] ath_attach+0x707/0x9e6 [ath9k]
[<
f8f45e46>] ath_pci_probe+0x18d/0x29a [ath9k]
[<
c023c7ba>] pci_device_probe+0xa3/0xe4
[<
c02a860b>] really_probe+0xd7/0x1de
[<
c02a87e7>] __driver_attach+0x37/0x55
[<
c02a7eed>] bus_for_each_dev+0x31/0x57
[<
c02a83bd>] driver_attach+0x16/0x18
[<
c02a78e6>] bus_add_driver+0xec/0x21b
[<
c02a8959>] driver_register+0x85/0xe2
[<
c023c9bb>] __pci_register_driver+0x3c/0x69
[<
f8e93043>] ath9k_init+0x43/0x68 [ath9k]
[<
c010112b>] _stext+0x3b/0x116
[<
c014a872>] sys_init_module+0x8a/0x19e
[<
c01049ad>] sysenter_do_call+0x12/0x21
[<
ffffe430>] 0xffffe430
=======================
Code: 0f 94 c0 c3 31 c0 c3 55 57 56 53 89 c3 83 ec 14 8b 74 24 2c 89 54 24 0c 89 4c 24 08 85 f6 75
06 8b 35 c8 bb ec f8 a1 cc bb ec f8 <8b> 40 04 83 f8 03 74 3a 48 74 37 8b 43 28 85 c0 74 30 89 c6
8b
EIP: [<
f8ebec50>] freq_reg_info_regd+0x24/0x121 [cfg80211] SS:ESP 0068:
f5183d44
Cc: stable@kernel.org
Reported-by: Nataraj Sadasivam <Nataraj.Sadasivam@Atheros.com>
Reported-by: Vivek Natarajan <Vivek.Natarajan@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reinette Chatre [Thu, 30 Apr 2009 20:56:31 +0000 (13:56 -0700)]
iwlwifi: update key flags at time key is set
We need to be symmetrical in what is done when key is set and cleared.
This is important wrt the key flags as they are used during key
clearing and if they are not set when the key is set the key cannot be
cleared completely.
This addresses the many occurences of the WARN found in
iwl_set_tkip_dynamic_key_info() and tracked in
http://www.kerneloops.org/searchweek.php?search=iwl_set_dynamic_key
If calling iwl_set_tkip_dynamic_key_info()/iwl_remove_dynamic_key()
pair a few times in a row will cause that we run out of key space.
This is because the index stored in the key flags is used by
iwl_remove_dynamic_key() to decide if it should remove the key.
Unfortunately the key flags, and hence the key index is currently only
set at the time the key is written to the device (in
iwl_update_tkip_key()) and _not_ in iwl_set_tkip_dynamic_key_info().
Fix this by setting flags in iwl_set_tkip_dynamic_key_info().
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 30 Apr 2009 18:09:56 +0000 (20:09 +0200)]
cfg80211: fix truncated IEs
Another bug in the "cfg80211: do not replace BSS structs" patch,
a forgotten length update leads to bogus data being stored and
passed to userspace, often truncated.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 29 Apr 2009 21:35:56 +0000 (23:35 +0200)]
mac80211: correct fragmentation threshold check
The fragmentation threshold is defined to be including the
FCS, and the code that sets the TX_FRAGMENTED flag correctly
accounts for those four bytes. The code that verifies this
doesn't though, which could lead to spurious warnings and
frames being dropped although everything is ok. Correct the
code by accounting for the FCS.
(JWL -- The problem is described here:
http://article.gmane.org/gmane.linux.kernel.wireless.general/32205 )
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Andreas Schwab [Thu, 30 Apr 2009 07:58:50 +0000 (09:58 +0200)]
iwlwifi: remove EXPORT_SYMBOL for static symbol
It does not make sense to apply EXPORT_SYMBOL to a static symbol. Fixes
this build error:
drivers/net/wireless/iwlwifi/iwl3945-base.c:1697: error: __ksymtab_iwl3945_rx_queue_reset causes a section type conflict
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Omar Laazimani [Mon, 4 May 2009 19:01:43 +0000 (12:01 -0700)]
usbnet: CDC EEM support (v5)
This introduces a CDC Ethernet Emulation Model (EEM) host side
driver to support USB EEM devices.
EEM is different from the Ethernet Control Model (ECM) currently
supported by the "CDC Ethernet" driver. One key difference is
that it doesn't require of USB interface alternate settings to
manage interface state; some maldesigned hardware can't handle
that part of USB. It also avoids a separate USB interface for
control and status updates.
[ dbrownell@users.sourceforge.net: fix skb leaks, add rx packet
checks, improve fault handling, EEM conformance updates, cleanup ]
Signed-off-by: Omar Laazimani <omar.oberthur@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Satoru SATOH [Mon, 4 May 2009 18:11:01 +0000 (11:11 -0700)]
tcp: Fix tcp_prequeue() to get correct rto_min value
tcp_prequeue() refers to the constant value (TCP_RTO_MIN) regardless of
the actual value might be tuned. The following patches fix this and make
tcp_prequeue get the actual value returns from tcp_rto_min().
Signed-off-by: Satoru SATOH <satoru.satoh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hannes Hering [Mon, 4 May 2009 18:06:37 +0000 (11:06 -0700)]
ehea: fix invalid pointer access
This patch fixes an invalid pointer access in case the receive queue
holds no pointer to the next skb when the queue is empty.
Signed-off-by: Hannes Hering <hering2@de.ibm.com>
Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lubomir Rintel [Sat, 2 May 2009 20:52:13 +0000 (13:52 -0700)]
ne2k-pci: Do not register device until initialized.
Doing it in reverse order causes uevent to be sent before
we have a MAC address, which confuses udev.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rabin Vincent [Sat, 2 May 2009 20:49:36 +0000 (13:49 -0700)]
Subject: [PATCH] br2684: restore net_dev initialization
Commit
0ba25ff4c669e5395110ba6ab4958a97a9f96922 ("br2684: convert to
net_device_ops") inadvertently deleted the initialization of the net_dev
pointer in the br2684_dev structure, leading to crashes. This patch
adds it back.
Reported-by: Mikko Vinni <mmvinni@yahoo.com>
Tested-by: Mikko Vinni <mmvinni@yahoo.com>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
Robert Love [Sat, 2 May 2009 20:48:32 +0000 (13:48 -0700)]
net: Only store high 16 bits of kernel generated filter priorities
The kernel should only be using the high 16 bits of a kernel
generated priority. Filter priorities in all other cases only
use the upper 16 bits of the u32 'prio' field of 'struct tcf_proto',
but when the kernel generates the priority of a filter is saves all
32 bits which can result in incorrect lookup failures when a filter
needs to be deleted or modified.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Williamson [Fri, 1 May 2009 17:31:10 +0000 (17:31 +0000)]
virtio_net: Fix function name typo
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Williamson [Fri, 1 May 2009 17:27:56 +0000 (17:27 +0000)]
virtio_net: Cleanup command queue scatterlist usage
We were avoiding calling sg_init* on scatterlists passed
into virtnet_send_command to prevent extraneous end markers.
This caused build warnings for uninitialized variables.
Cleanup the code to create proper scatterlists.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Fri, 1 May 2009 22:35:28 +0000 (15:35 -0700)]
bonding: correct the cleanup in bond_create()
This patch makes the cleanup in bond_create nicer :) Also now the forgotten
free_netdev is called.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Grant Likely [Fri, 1 May 2009 22:34:02 +0000 (15:34 -0700)]
virtio: add missing include to virtio_net.h
virtio_net.h uses the macro ETH_ALEN which is defined in linux/if_ether.h.
Discovered when hacking on virtio-over-pci patches.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Fri, 1 May 2009 06:07:22 +0000 (06:07 +0000)]
smsc95xx: add support for LAN9512 and LAN9514
LAN9512 and LAN9514 are USB hubs with an integrated 10/100 ethernet
controller. Logically this looks like an ethernet controller (similar
to LAN9500) permanently attached to one of the hub's downstream ports.
This patch adds the usb device id of the new ethernet controller to the
smsc95xx driver. This id is the same in both new devices.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Fri, 1 May 2009 05:46:51 +0000 (05:46 +0000)]
smsc95xx: configure LED outputs
SMSC LAN9500 has dual purpose GPIO/LED pins, and by default at power-on
these are configured as GPIOs. This means that if LEDs are fitted they
won't ever light.
This patch sets them to be LED outputs for speed, duplex and
link/activity.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruno Prémont [Wed, 29 Apr 2009 20:45:17 +0000 (20:45 +0000)]
netconsole: take care of NETDEV_UNREGISTER event
When netconsole is loaded and a network interface fades away (e.g. on
rmmod $interface_driver_module) the rmmod remains stuck and some locks
are taken that prevent any additional module loading/unloading as well
as interface up/down changes.
In addition kernel logs (and console) get flooded at 10s interval with
[ 122.464065] unregister_netdevice: waiting for eth0 to become free. Usage count = 1
[ 132.704059] unregister_netdevice: waiting for eth0 to become free. Usage count = 1
This patch lets netconsole take NETDEV_UNREGISTER event into account
and release the affected interface if it was in use.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Laszlo Attila Toth [Fri, 1 May 2009 22:23:10 +0000 (15:23 -0700)]
xt_socket: checks for the state of nf_conntrack
xt_socket can use connection tracking, and checks whether it is a module.
Signed-off-by: Laszlo Attila Toth <panther@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 23 Apr 2009 03:39:04 +0000 (03:39 +0000)]
bonding: bond_slave_info_query() fix
bond_slave_info_query() should keep a read lock while accessing slave info,
or risk accessing stale data and corruption.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sergey Senozhatsky [Fri, 1 May 2009 16:15:09 +0000 (09:15 -0700)]
cxgb3: fixing gcc 4.4 compiler warning: suggest parentheses around operand of ‘!’
Trivial: fixing gcc 4.4 compiler warning:
drivers/net/cxgb3/t3_hw.c: In function ‘t3_prep_adapter’:
drivers/net/cxgb3/t3_hw.c:3782: warning: suggest parentheses around operand of ‘!’ or change ‘|’ to ‘||’ or ‘!’ to ‘~’
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 1 May 2009 16:10:46 +0000 (09:10 -0700)]
netfilter: use likely() in xt_info_rdlock_bh()
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 1 May 2009 16:05:06 +0000 (09:05 -0700)]
net: Fix skb_tx_hash() for forwarding workloads.
When skb_rx_queue_recorded() is true, we dont want to use jash distribution
as the device driver exactly told us which queue was selected at RX time.
jhash makes a statistical shuffle, but this wont work with 8 static inputs.
Later improvements would be to compute reciprocal value of real_num_tx_queues
to avoid a divide here. But this computation should be done once,
when real_num_tx_queues is set. This needs a separate patch, and a new
field in struct net_device.
Reported-by: Andrew Dickinson <andrew@whydna.net>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarek Poplawski [Thu, 30 Apr 2009 12:41:19 +0000 (05:41 -0700)]
net: Fix oops when splicing skbs from a frag_list.
Lennert Buytenhek wrote:
> Since
4fb669948116d928ae44262ab7743732c574630d ("net: Optimize memory
> usage when splicing from sockets.") I'm seeing this oops (e.g. in
> 2.6.30-rc3) when splicing from a TCP socket to /dev/null on a driver
> (mv643xx_eth) that uses LRO in the skb mode (lro_receive_skb) rather
> than the frag mode:
My patch incorrectly assumed skb->sk was always valid, but for
"frag_listed" skbs we can only use skb->sk of their parent.
Reported-by: Lennert Buytenhek <buytenh@wantstofly.org>
Debugged-by: Lennert Buytenhek <buytenh@wantstofly.org>
Tested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lennert Buytenhek [Wed, 29 Apr 2009 11:58:18 +0000 (11:58 +0000)]
mv643xx_eth: 64bit mib counter read fix
On several mv643xx_eth hardware versions, the two 64bit mib counters
for 'good octets received' and 'good octets sent' are actually 32bit
counters, and reading from the upper half of the register has the same
effect as reading from the lower half of the register: an atomic
read-and-clear of the entire 32bit counter value. This can under heavy
traffic occasionally lead to small numbers being added to the upper
half of the 64bit mib counter even though no 32bit wrap has occured.
Since we poll the mib counters at least every 30 seconds anyway, we
might as well just skip the reads of the upper halves of the hardware
counters without breaking the stats, which this patch does.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Lennert Buytenhek [Wed, 29 Apr 2009 11:57:34 +0000 (11:57 +0000)]
mv643xx_eth: OOM handling fixes
Currently, when OOM occurs during rx ring refill, mv643xx_eth will get
into an infinite loop, due to the refill function setting the OOM bit
but not clearing the 'rx refill needed' bit for this queue, while the
calling function (the NAPI poll handler) will call the refill function
in a loop until the 'rx refill needed' bit goes off, without checking
the OOM bit.
This patch fixes this by checking the OOM bit in the NAPI poll handler
before attempting to do rx refill. This means that once OOM occurs,
we won't try to do any memory allocations again until the next invocation
of the poll handler.
While we're at it, change the OOM flag to be a single bit instead of
one bit per receive queue since OOM is a system state rather than a
per-queue state, and cancel the OOM timer on entry to the NAPI poll
handler if it's running to prevent it from firing when we've already
come out of OOM.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 29 Apr 2009 22:52:56 +0000 (15:52 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
Johannes Berg [Tue, 28 Apr 2009 22:28:18 +0000 (00:28 +0200)]
mac80211: default to automatic power control
In "mac80211: correct wext transmit power handler"
I fixed the wext handler, but forgot to make the default of the
user_power_level -1 (aka "auto"), so that now the transmit power
is always set to 0, causing associations to time out and similar
problems since we're transmitting with very little power. Correct
this by correcting the default user_power_level to -1.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Bisected-by: Niel Lambrechts <niel.lambrechts@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Alan Jenkins [Wed, 29 Apr 2009 10:41:24 +0000 (11:41 +0100)]
mac80211: fix modprobe deadlock by not calling wep_init under rtnl_lock
- ieee80211_wep_init(), which is called with rtnl_lock held, blocks in
request_module() [waiting for modprobe to load a crypto module].
- modprobe blocks in a call to flush_workqueue(), when it closes a TTY
[presumably when it exits].
- The workqueue item linkwatch_event() blocks on rtnl_lock.
There's no reason for wep_init() to be called with rtnl_lock held, so
just move it outside the critical section.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Thadeu Lima de Souza Cascardo [Wed, 29 Apr 2009 05:42:39 +0000 (22:42 -0700)]
e100: do not go D3 in shutdown unless system is powering off
After experimenting with kexec with the last merges after 2.6.29, I've
had some problems when probing e100. It would not read the eeprom. After
some bisects, I realized this has been like that since forever (at least
2.6.18). The problem is that shutdown is doing the same thing that
suspend does and puts the device in D3 state. I couldn't find a way to
get the device back to a sane state in the probe function. So, based on
some similar patches from Rafael J. Wysocki for e1000, e1000e, and ixgbe,
I wrote this one for e100.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 29 Apr 2009 05:40:49 +0000 (22:40 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/holtmann/bluetooth-2.6
Stephen Hemminger [Wed, 29 Apr 2009 05:36:33 +0000 (22:36 -0700)]
netfilter: revised locking for x_tables
The x_tables are organized with a table structure and a per-cpu copies
of the counters and rules. On older kernels there was a reader/writer
lock per table which was a performance bottleneck. In 2.6.30-rc, this
was converted to use RCU and the counters/rules which solved the performance
problems for do_table but made replacing rules much slower because of
the necessary RCU grace period.
This version uses a per-cpu set of spinlocks and counters to allow to
table processing to proceed without the cache thrashing of a global
reader lock and keeps the same performance for table updates.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bob Copeland [Tue, 28 Apr 2009 02:12:43 +0000 (22:12 -0400)]
ath5k: fix buffer overrun in rate debug code
char bname[5] is too small for the string "X GHz" when the null
terminator is taken into account. Thus, turning on rate debugging
can crash unless we have lucky stack alignment.
Cc: stable@kernel.org
Reported-by: Paride Legovini <legovini@spiro.fisica.unipd.it>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 23 Apr 2009 08:45:04 +0000 (10:45 +0200)]
iwlwifi: notify on scan completion even when shutting down
Under certain circumstances iwlwifi can get stuck and will no
longer accept scan requests, because the core code (cfg80211)
thinks that it's still processing one. This fixes one of the
points where it can happen, but I've still seen it (although
only with my radio-off-when-idle patch).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Jussi Kivilinna [Wed, 22 Apr 2009 07:59:37 +0000 (10:59 +0300)]
rndis_wlan: fix initialization order for workqueue&workers
rndis_wext_link_change() might be called from rndis_command() at
initialization stage and priv->workqueue/priv->work have not been
initialized yet. This causes invalid opcode at rndis_wext_bind on
some brands of bcm4320.
Fix by initializing workqueue/workers in rndis_wext_bind() before
rndis_command is used.
This bug has existed since 2.6.25, reported at:
http://bugzilla.kernel.org/show_bug.cgi?id=12794
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stephen Rothwell [Wed, 22 Apr 2009 05:11:05 +0000 (15:11 +1000)]
wireless: remove unneeded EXPORT_SYMBOL the tickles a powerpc compiler bug
drivers/net/wireless/iwlwifi/iwl3945-base.c:1415: error: __ksymtab_iwl3945_rx_queue_reset causes a section type conflict
I am pretty sure that this is a compiler bug, so not to worry. However,
as far as I can see, iwl-3945.o (the only user) and iwl3945-base.o are
always linked into the same module, so the EXPORT_SYMBOL (which causes
the problem) should not be needed. Correct?
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Marcel Holtmann [Tue, 28 Apr 2009 16:04:55 +0000 (09:04 -0700)]
Bluetooth: Fix connection establishment with low security requirement
The Bluetooth 2.1 specification introduced four different security modes
that can be mapped using Legacy Pairing and Simple Pairing. With the
usage of Simple Pairing it is required that all connections (except
the ones for SDP) are encrypted. So even the low security requirement
mandates an encrypted connection when using Simple Pairing. When using
Legacy Pairing (for Bluetooth 2.0 devices and older) this is not required
since it causes interoperability issues.
To support this properly the low security requirement translates into
different host controller transactions depending if Simple Pairing is
supported or not. However in case of Simple Pairing the command to
switch on encryption after a successful authentication is not triggered
for the low security mode. This patch fixes this and actually makes
the logic to differentiate between Simple Pairing and Legacy Pairing
a lot simpler.
Based on a report by Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Marcel Holtmann [Sun, 26 Apr 2009 18:01:22 +0000 (20:01 +0200)]
Bluetooth: Add different pairing timeout for Legacy Pairing
The Bluetooth stack uses a reference counting for all established ACL
links and if no user (L2CAP connection) is present, the link will be
terminated to save power. The problem part is the dedicated pairing
when using Legacy Pairing (Bluetooth 2.0 and before). At that point
no user is present and pairing attempts will be disconnected within
10 seconds or less. In previous kernel version this was not a problem
since the disconnect timeout wasn't triggered on incoming connections
for the first time. However this caused issues with broken host stacks
that kept the connections around after dedicated pairing. When the
support for Simple Pairing got added, the link establishment procedure
needed to be changed and now causes issues when using Legacy Pairing
When using Simple Pairing it is possible to do a proper reference
counting of ACL link users. With Legacy Pairing this is not possible
since the specification is unclear in some areas and too many broken
Bluetooth devices have already been deployed. So instead of trying to
deal with all the broken devices, a special pairing timeout will be
introduced that increases the timeout to 60 seconds when pairing is
triggered.
If a broken devices now puts the stack into an unforeseen state, the
worst that happens is the disconnect timeout triggers after 120 seconds
instead of 4 seconds. This allows successful pairings with legacy and
broken devices now.
Based on a report by Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Roger Quadros [Thu, 23 Apr 2009 11:50:54 +0000 (14:50 +0300)]
Bluetooth: Ensure that HCI sysfs add/del is preempt safe
Use a different work_struct variables for add_conn() and del_conn() and
use single work queue instead of two for adding and deleting connections.
It eliminates the following error on a preemptible kernel:
[ 204.358032] Unable to handle kernel NULL pointer dereference at virtual address
0000000c
[ 204.370697] pgd =
c0004000
[ 204.373443] [
0000000c] *pgd=
00000000
[ 204.378601] Internal error: Oops: 17 [#1] PREEMPT
[ 204.383361] Modules linked in: vfat fat rfcomm sco l2cap sd_mod scsi_mod iphb pvr2d drm omaplfb ps
[ 204.438537] CPU: 0 Not tainted (2.6.28-maemo2 #1)
[ 204.443664] PC is at klist_put+0x2c/0xb4
[ 204.447601] LR is at klist_put+0x18/0xb4
[ 204.451568] pc : [<
c0270f08>] lr : [<
c0270ef4>] psr:
a0000113
[ 204.451568] sp :
cf1b3f10 ip :
cf1b3f10 fp :
cf1b3f2c
[ 204.463104] r10:
00000000 r9 :
00000000 r8 :
bf08029c
[ 204.468353] r7 :
c7869200 r6 :
cfbe2690 r5 :
c78692c8 r4 :
00000001
[ 204.474945] r3 :
00000001 r2 :
cf1b2000 r1 :
00000001 r0 :
00000000
[ 204.481506] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 204.488861] Control:
10c5387d Table:
887fc018 DAC:
00000017
[ 204.494628] Process btdelconn (pid: 515, stack limit = 0xcf1b22e0)
Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Eric Dumazet [Tue, 28 Apr 2009 09:24:21 +0000 (02:24 -0700)]
net: Avoid extra wakeups of threads blocked in wait_for_packet()
In 2.6.25 we added UDP mem accounting.
This unfortunatly added a penalty when a frame is transmitted, since
we have at TX completion time to call sock_wfree() to perform necessary
memory accounting. This calls sock_def_write_space() and utimately
scheduler if any thread is waiting on the socket.
Thread(s) waiting for an incoming frame was scheduled, then had to sleep
again as event was meaningless.
(All threads waiting on a socket are using same sk_sleep anchor)
This adds lot of extra wakeups and increases latencies, as noted
by Christoph Lameter, and slows down softirq handler.
Reference : http://marc.info/?l=linux-netdev&m=
124060437012283&w=2
Fortunatly, Davide Libenzi recently added concept of keyed wakeups
into kernel, and particularly for sockets (see commit
37e5540b3c9d838eb20f2ca8ea2eb8072271e403
epoll keyed wakeups: make sockets use keyed wakeups)
Davide goal was to optimize epoll, but this new wakeup infrastructure
can help non epoll users as well, if they care to setup an appropriate
handler.
This patch introduces new DEFINE_WAIT_FUNC() helper and uses it
in wait_for_packet(), so that only relevant event can wakeup a thread
blocked in this function.
Trace of function calls from bnx2 TX completion bnx2_poll_work() is :
__kfree_skb()
skb_release_head_state()
sock_wfree()
sock_def_write_space()
__wake_up_sync_key()
__wake_up_common()
receiver_wake_function() : Stops here since thread is waiting for an INPUT
Reported-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Rapoport [Mon, 27 Apr 2009 12:45:54 +0000 (05:45 -0700)]
net: Fix typo in net_device_ops description.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Blanchard [Mon, 27 Apr 2009 12:42:24 +0000 (05:42 -0700)]
ipv4: Limit size of route cache hash table
Right now we have no upper limit on the size of the route cache hash table.
On a 128GB POWER6 box it ends up as 32MB:
IP route cache hash table entries:
4194304 (order: 9,
33554432 bytes)
It would be nice to cap this for memory consumption reasons, but a massive
hashtable also causes a significant spike when measuring OS jitter.
With a 32MB hashtable and 4 million entries, rt_worker_func is taking
5 ms to complete. On another system with more memory it's taking 14 ms.
Even though rt_worker_func does call cond_sched() to limit its impact,
in an HPC environment we want to keep all sources of OS jitter to a minimum.
With the patch applied we limit the number of entries to 512k which
can still be overriden by using the rt_entries boot option:
IP route cache hash table entries: 524288 (order: 6,
4194304 bytes)
With this patch rt_worker_func now takes 0.460 ms on the same system.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karsten Keil [Thu, 23 Apr 2009 02:24:21 +0000 (02:24 +0000)]
Add reference to CAPI 2.0 standard
Move the entry about CAPI 2.0 to the beginning and add a URL.
Incorporate changes suggested by Randy Dunlap, thanks for proofreading.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tilman Schmidt [Thu, 23 Apr 2009 02:24:21 +0000 (02:24 +0000)]
Documentation/isdn/INTERFACE.CAPI
isdn: document Kernel CAPI driver interface
Create a file Documentation/isdn/INTERFACE.CAPI describing the
interface between the kernel CAPI subsystem and ISDN device drivers,
analogous to the existing Documentation/isdn/INTERFACE for the old
isdn4linux subsystem. Also add kerneldoc comments to the exported
functions in drivers/isdn/capi/kcapi.c.
Impact: Documentation
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tilman Schmidt [Thu, 23 Apr 2009 02:24:21 +0000 (02:24 +0000)]
update Documentation/isdn/00-INDEX
After the merging of mISDN, state which files refer only to the
old isdn4linux subsystem. Also add a few missing files.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Waskiewicz Jr, Peter P [Thu, 23 Apr 2009 11:15:18 +0000 (11:15 +0000)]
ixgbe: Fix WoL functionality for 82599 KX4 devices
The current code writes the PME enabled bit in PCI config space which is
wrong. This was needed for pre-release hardware, and was not removed from
the driver. Also, we need to clear the WUS (wake up status) after we
resume. Otherwise we can't wake for the same event again since it's still
asserted in the hardware. Plus, the multicast lists were being written
improperly, causing multicast WoL to fail.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Hemminger [Mon, 27 Apr 2009 10:04:58 +0000 (03:04 -0700)]
veth: prevent oops caused by netdev destructor
From: Stephen Hemminger <shemminger@vyatta.com>
The veth driver will oops if sysfs hooks are open while module is removed.
The net device destructor can not point to code in a module; basically
there are only two possible safe values: NULL - no destructor, or
free_netdev - free on last use
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Mon, 27 Apr 2009 09:58:59 +0000 (02:58 -0700)]
xfrm: wrong hash value for temporary SA
When kernel inserts a temporary SA for IKE, it uses the wrong hash
value for dst list. Two hash values were calcultated before: one with
source address and one with a wildcard source address.
Bug hinted by Junwei Zhang <junwei.zhang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ayaz Abdulla [Sat, 25 Apr 2009 09:17:56 +0000 (09:17 +0000)]
forcedeth: tx timeout fix
This patch fixes the tx_timeout() to properly handle the clean up of the
tx ring. It also sets the tx put pointer back to the correct position to
be in sync with HW.
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adrian Bunk [Mon, 27 Apr 2009 09:36:20 +0000 (02:36 -0700)]
net: Fix LL_MAX_HEADER for CONFIG_TR_MODULE
Unless I miss anything this should fix a bug.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yevgeny Petrilin [Sun, 26 Apr 2009 20:42:57 +0000 (20:42 +0000)]
mlx4_en: Handle page allocation failure during receive
If we failed to allocate new fragments for receive buffer,
the packet should be dropped and packets should be reused.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yevgeny Petrilin [Sun, 26 Apr 2009 20:41:34 +0000 (20:41 +0000)]
mlx4_en: Fix cleanup flow on cq activation
In case of mlx4_en_activate_cq() failure, the cleanup
code would go to rx_err and try to disable unactivated rings.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jay Vosburgh [Sun, 26 Apr 2009 01:03:35 +0000 (18:03 -0700)]
vlan: update vlan carrier state for admin up/down
Currently, the VLAN event handler does not adjust the VLAN
device's carrier state when the real device or the VLAN device is set
administratively up or down.
The following patch adds a transfer of operating state from the
real device to the VLAN device when the real device is administratively
set up or down, and sets the carrier state up or down during init, open
and close of the VLAN device.
This permits observers above the VLAN device that care about the
carrier state (bonding's link monitor, for example) to receive updates
for administrative changes by more closely mimicing the behavior of real
devices.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
David S. Miller [Sun, 26 Apr 2009 00:46:34 +0000 (17:46 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/kaber/nf-2.6
Jan Engelhardt [Fri, 24 Apr 2009 15:05:21 +0000 (17:05 +0200)]
netfilter: xt_recent: fix stack overread in compat code
Related-to: commit 325fb5b4d26038cba665dd0d8ee09555321061f0
The compat path suffers from a similar problem. It only uses a __be32
when all of the recent code uses, and expects, an nf_inet_addr
everywhere. As a result, addresses stored by xt_recents were
filled with whatever other stuff was on the stack following the be32.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
With a minor compile fix from Roman.
Reported-and-tested-by: Roman Hoog Antink <rha@open.ch>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Pablo Neira Ayuso [Fri, 24 Apr 2009 14:58:41 +0000 (16:58 +0200)]
netfilter: nf_ct_dccp: add missing role attributes for DCCP
This patch adds missing role attribute to the DCCP type, otherwise
the creation of entries is not of any use.
The attribute added is CTA_PROTOINFO_DCCP_ROLE which contains the
role of the conntrack original tuple.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Laszlo Attila Toth [Fri, 24 Apr 2009 14:55:25 +0000 (16:55 +0200)]
netfilter: Kconfig: TProxy doesn't depend on NF_CONNTRACK
Signed-off-by: Laszlo Attila Toth <panther@balabit.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Patrick McHardy [Fri, 24 Apr 2009 13:37:44 +0000 (15:37 +0200)]
netfilter: nf_ct_dccp/udplite: fix protocol registration error
Commit
d0dba725 (netfilter: ctnetlink: add callbacks to the per-proto
nlattrs) changed the protocol registration function to abort if the
to-be registered protocol doesn't provide a new callback function.
The DCCP and UDP-Lite IPv6 protocols were missed in this conversion,
add the required callback pointer.
Reported-and-tested-by: Steven Jan Springl <steven@springl.ukfsn.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Pablo Neira Ayuso [Wed, 22 Apr 2009 09:26:37 +0000 (02:26 -0700)]
netfilter: ctnetlink: fix gcc warning during compilation
This patch fixes a (bogus?) gcc warning during compilation:
net/netfilter/nf_conntrack_netlink.c:1234: warning: 'helpname' may be used uninitialized in this function
net/netfilter/nf_conntrack_netlink.c:991: warning: 'helpname' may be used uninitialized in this function
In fact, helpname is initialized by ctnetlink_parse_help() so
I cannot see a way to use it without being initialized.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jean Delvare [Wed, 22 Apr 2009 07:49:51 +0000 (00:49 -0700)]
net/netrom: Fix socket locking
Patch "af_rose/x25: Sanity check the maximum user frame size"
(commit
83e0bbcbe2145f160fbaa109b0439dae7f4a38a9) from Alan Cox got
locking wrong. If we bail out due to user frame size being too large,
we must unlock the socket beforehand.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Moore [Tue, 21 Apr 2009 10:04:22 +0000 (10:04 +0000)]
netlabel: Always remove the correct address selector
The NetLabel address selector mechanism has a problem where it can get
mistakenly remove the wrong selector when similar addresses are used. The
problem is caused when multiple addresses are configured that have different
netmasks but the same address, e.g. 127.0.0.0/8 and 127.0.0.0/24. This patch
fixes the problem.
Reported-by: Etienne Basset <etienne.basset@numericable.fr>
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
Tested-by: Etienne Basset <etienne.basset@numericable.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiko Schocher [Mon, 20 Apr 2009 22:36:43 +0000 (22:36 +0000)]
ucc_geth.c: Fix upsmr setting in RMII mode
If using the UCC on a MPC8360 in RMII mode, don;t set
UCC_GETH_UPSMR_RPM bit in the upsmr register.
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jianjun kong [Mon, 20 Apr 2009 23:48:25 +0000 (23:48 +0000)]
8139too: fix HW initial flow
While ifconfig eth0 up kernel calls open() of 8139 driver(8139too.c).
In rtl8139_hw_start() of rtl8139_open(), 8139 driver enable RX before
setting up the DMA buffer address. In this interval where RX was
enabled and DMA buffer address is not yet set up, any incoming
broadcast packet would be send to a strange physical address:
0x003e8800 which is the default value of DMA buffer address.
Unfortunately, this address is used by Linux kernel. So kernel panics.
This patch fix it by setting up DMA buffer address before RX enabled
and everything is fine even under broadcast packets attack.
Signed-off-by: Jonathan Lin <jon.lin@vatics.com>
Signed-off-by: Amos Kong <jianjun@zeuux.org>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:24 +0000 (06:04 +0000)]
af_iucv: Fix race when queuing incoming iucv messages
AF_IUCV runs into a race when queuing incoming iucv messages
and receiving the resulting backlog.
If the Linux system is under pressure (high load or steal time),
the message queue grows up, but messages are not received and queued
onto the backlog queue. In that case, applications do not
receive any data with recvmsg() even if AF_IUCV puts incoming
messages onto the message queue.
The race can be avoided if the message queue spinlock in the
message_pending callback is spreaded across the entire callback
function.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:23 +0000 (06:04 +0000)]
af_iucv: Test additional sk states in iucv_sock_shutdown
Add few more sk states in iucv_sock_shutdown().
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:22 +0000 (06:04 +0000)]
af_iucv: Reject incoming msgs if RECV_SHUTDOWN is set
Reject incoming iucv messages if the receive direction has been shut down.
It avoids that the queue of outstanding messages increases and exceeds the
message limit of the iucv communication path.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hendrik Brueckner [Tue, 21 Apr 2009 06:04:21 +0000 (06:04 +0000)]
af_iucv: fix oops in iucv_sock_recvmsg() for MSG_PEEK flag
If iucv_sock_recvmsg() is called with MSG_PEEK flag set, the skb is enqueued
twice. If the socket is then closed, the pointer to the skb is freed twice.
Remove the skb_queue_head() call for MSG_PEEK, because the skb_recv_datagram()
function already handles MSG_PEEK (does not dequeue the skb).
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Tue, 21 Apr 2009 06:04:20 +0000 (06:04 +0000)]
af_iucv: consider state IUCV_CLOSING when closing a socket
Make sure a second invocation of iucv_sock_close() guarantees proper
freeing of an iucv path.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reinette Chatre [Tue, 21 Apr 2009 17:55:48 +0000 (10:55 -0700)]
iwlwifi: DMA fixes
A few issues wrt DMA were uncovered when using the driver with swiotlb.
- driver should not use memory after it has been mapped
- iwl3945's RX queue management cannot use all of iwlagn because
the size of the RX buffer is different. Revert back to using
iwl3945 specific routines that map/unmap memory.
- no need to "dma_syn_single_range_for_cpu" followed by pci_unmap_single,
we can just call pci_unmap_single initially
- only map the memory area that will be used by device. this is especially
relevant to the mapping of iwl_cmd. we should not map the entire
structure because the meta data at the beginning of structure contains
the address to be used later for unmapping. If the address to be used for
unmapping is stored in mapped data it creates a problem.
- ensure that _if_ memory needs to be modified after it is mapped that we
call _sync_single_for_cpu first, and then release it back to device with
_sync_single_for_device
- we mapped the wrong length of data for host commands, with mapped length
differing with length provided to device, fix that.
Thanks to Jason Andryuk <jandryuk@gmail.com> for significant bisecting
help to find these issues.
This fixes http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1964
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Jason Andryuk <jandryuk@gmail.com>
Tested-by: Ben Gamari <bgamari@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reinette Chatre [Tue, 21 Apr 2009 17:55:47 +0000 (10:55 -0700)]
iwlwifi: add debugging for TX path
When debugging TX issues it is helpful to know the seq nr of the
frame being transmitted. The seq nr is printed as part of ucode's
log informing us which frame is being processed. Having this information
printed in driver log makes it easy to match activities between driver
and firmware.
Also make possible to print TX flags directly. These are already printed
as part of entire TX command, but having it printed directly in cpu format
makes it easier to look at.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>