If receive buffer mapping failed, then it was possible to get
stuck with unmapped receive buffer in DMA ring.
This would be an extremely rare condition because the driver had just
released the map for the last receive so it should be able to get
another map again (in soft-irq).
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Dobriyan [Mon, 1 Feb 2010 09:44:19 +0000 (09:44 +0000)]
net: CONFIG_COMPAT redux
Ifdef out
struct proto_ops::compat_ioctl
struct proto_ops::compat_setsockopt
struct proto_ops::compat_getsockopt
to make structures smaller on COMPAT=n kernels.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
can: mcp251x: Move to threaded interrupts instead of workqueues.
This patch addresses concerns about efficiency of handling incoming
packets. Handling of interrupts is done in a threaded interrupt handler
which has a smaller latency than workqueues. This change needed a rework
of the locking scheme that was much simplified. Some other (more or less
longstanding) bugs are fixed: utilization of just half of the RX
buffers, useless wait for interrupt on open, more reliable reset
sequence. The MERR interrupt is not used anymore: it overloads the CPU
in error-passive state without any additional information. One shot mode
is disabled because it's not clear if it can be handled efficiently on
this CAN controller.
Signed-off-by: Christian Pellegrin <chripell@fsfe.org> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ajit Khaparde [Mon, 1 Feb 2010 14:06:52 +0000 (14:06 +0000)]
bonding: Remove net_device_stats from bonding struct
There is no need to maintain stats in the bonding structure.
Use the instance of net_device_stats in netdevice.
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Sat, 30 Jan 2010 12:24:26 +0000 (12:24 +0000)]
net: macvtap driver
In order to use macvlan with qemu and other tools that require
a tap file descriptor, the macvtap driver adds a small backend
with a character device with the same interface as the tun
driver, with a minimum set of features.
Macvtap interfaces are created in the same way as macvlan
interfaces using ip link, but the netif is just used as a
handle for configuration and accounting, while the data
goes through the chardev. Each macvtap interface has its
own character device, simplifying permission management
significantly over the generic tun/tap driver.
Cc: Patrick McHardy <kaber@trash.net> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: David S. Miller" <davem@davemloft.net> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Or Gerlitz <ogerlitz@voltaire.com> Cc: netdev@vger.kernel.org Cc: bridge@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Sat, 30 Jan 2010 12:23:40 +0000 (12:23 +0000)]
macvlan: allow multiple driver backends
This makes it possible to hook into the macvlan driver
from another kernel module. In particular, the goal is
to extend it with the macvtap backend that provides
a tun/tap compatible interface directly on the macvlan
device.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Sat, 30 Jan 2010 12:23:03 +0000 (12:23 +0000)]
net: maintain namespace isolation between vlan and real device
In the vlan and macvlan drivers, the start_xmit function forwards
data to the dev_queue_xmit function for another device, which may
potentially belong to a different namespace.
To make sure that classification stays within a single namespace,
this resets the potentially critical fields.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Tue, 2 Feb 2010 12:43:59 +0000 (12:43 +0000)]
net/rds: remove uses of NIPQUAD, use %pI4
Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Grover <andy.grover@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Roel Kluin [Tue, 2 Feb 2010 12:43:47 +0000 (12:43 +0000)]
mISDN: positive error return should be negative in mode_hfcmulti()
The error return should be negative. Its only caller that acts upon its
return, handle_bmsg(), transmits the positive error but can also return
negative errors.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Slaby [Tue, 2 Feb 2010 12:43:46 +0000 (12:43 +0000)]
isdn: mISDN, don't compile unused stuff
Remove these compiler warnings:
drivers/isdn/hardware/mISDN/w6692.c:534: warning: `setvolume' defined but not used
drivers/isdn/hardware/mISDN/w6692.c:561: warning: `enable_pots' defined but not used
by moving the functions inside #if 0 ... #endif. And an alternative is
to remove them completely if nobody has plans to use them.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Darren Jenkins [Tue, 2 Feb 2010 12:43:45 +0000 (12:43 +0000)]
hardware/mISDN/mISDNinfineon.c: bail out of loop on error
If setup_instance() fails we kfree() the card, and then use it in the next
loop iteration. So lets bail out of the loop instead.
Coverity CID: 13357
Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com> Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Roel Kluin [Tue, 2 Feb 2010 12:43:44 +0000 (12:43 +0000)]
hisax: timeout off by one in waitrecmsg()
With `while (timeout++ < maxdelay)' timeout reaches maxdelay + 1 after the
loop This is probably unlikely a problem in practice.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Ron Mercer [Wed, 3 Feb 2010 07:24:12 +0000 (07:24 +0000)]
qlge: Add check for eeh failure when closing device.
Fix crash where resources are freed twice on an eeh recovery failure.
If eeh recovery fails we set a flag to indicate to close() that
resources have been freed.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ron Mercer [Wed, 3 Feb 2010 07:24:11 +0000 (07:24 +0000)]
qlge: Move reset from eeh io_resume to slot_reset.
Issue asic reset and verify functionality before continuing to the
resume call. This allows proper error code to be returned in the case
the asic does not recover.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
PJ Waskiewicz [Wed, 3 Feb 2010 14:19:12 +0000 (14:19 +0000)]
ixgbe: Make descriptor ring allocations NUMA-aware
This patch allocates the ring structures themselves on each
NUMA node along with the buffer_info structures. This way we
don't allocate the entire ring memory on a single node in one
big block, thus reducing NUMA node memory crosstalk.
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>
The default policy for the current driver is to do all its memory
allocation on whatever processor is running insmod/modprobe. This
is less than optimal.
This driver's default mode of operation will be to use each node for each
subsequent transmit/receive queue. The most efficient allocation will be
to then have the interrupts bound in such a way as to match up the
interrupt of the queue to the cpu where its memory was allocated.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> 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>
Nick Nunley [Wed, 3 Feb 2010 14:49:48 +0000 (14:49 +0000)]
e1000: call pci_save_state after pci_restore_state
This patch adds a call to pci_save_state() immediately after
the call to pci_restore_state(). Due to a change in the behavior
of pci_restore_state() it is necessary to call pci_save_state()
to keep the state_saved flag. This patch is based on a similar
patch for ixgbe.
Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Nick Nunley [Wed, 3 Feb 2010 14:49:28 +0000 (14:49 +0000)]
e1000: Report link status in ethtool when interface is down
With this change ethtool will correctly report link status when
the interface is down. Currently ethtool reports the link as not
detected when the interface is down.
Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Wed, 3 Feb 2010 14:23:32 +0000 (14:23 +0000)]
ixgbe: only process one ixgbe_watchdog_task at a time.
Processing multiple ixgbe_watchdog_task calls may cause
the link_up variable and IXGBE_FLAG_NEED_LINK_UPDATE flag
to be set incorrectly. In the worse case this is causing
the netif_carrier_off to be called inappropriately which
results in an interface that can't be brought up.
Although schedule_work() will only schedule the task if
it is not already on the work queue the WORK_STRUCT_PENDING
bits are cleared just before calling the work function.
This allows WORK_STRUCT_PENDING to be cleared, the work
function to start and meanwhile schedule another task.
This patch adds a mutex to the watchdog task. This bug is
actualized by changing DCB settings or doing extended
cable pull or reset tests.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
As there was no follow up on that bug, I am submitting this
patch assuming that the other return points will not return
invalid txq's, and also that this fixes the bug (not tested).
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-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>
Anton Blanchard [Wed, 3 Feb 2010 13:12:51 +0000 (13:12 +0000)]
ixgbe: Fix ixgbe_tx_map error path
Commit e5a43549f7a58509a91b299a51337d386697b92c (ixgbe: remove
skb_dma_map/unmap calls from driver) looks to have introduced a bug in
ixgbe_tx_map. If we get an error from a PCI DMA call, we loop backwards
through count until it becomes -1 and return that.
The caller of ixgbe_tx_map expects 0 on error, so return that instead.
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
o context resources can be in used, while resource cleanup is in progress,
during fw recover.
o Null pointer execption can occur in send_cmd_desc, if fw recovery
module frees tx ring without rtnl lock.
o Same applies to ethtool register dump.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
For NX2031, first try to scrub interrupt before requesting firmware
reset. Return statement was missing after scrubbbing interrupt.
Signed-off-by: Vernon Mauery <vernux@us.ibm.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Wed, 3 Feb 2010 09:31:57 +0000 (09:31 +0000)]
sfc: Fix some incorrect or redundant comments
In particular, the comment about EVQ_RPTR_REG is based on inconsistent
preliminary hardware documentation, though the following code was
fixed long before release.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Wed, 3 Feb 2010 09:30:50 +0000 (09:30 +0000)]
sfc: Replace PHY MDIO test with an 'alive' test
SFC9000-family boards do not all use MDIO PHYs, so we need a different
test for PHY aliveness.
Introduce a PHY operation test_alive(). For PHYs attached to Falcon,
use a common implementation based on the existing PHY MDIO test.
For PHYs managed through MCDI, use the appropriate MCDI request.
Change test name in ethtool from 'core mdio' to 'phy alive'.
Rename test_results::mdio to phy_alive and test_results::phy to phy_ext.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
It fixes the construction of the first argument of try_then_request_module(),
where only valid return codes from the first argument should be returned.
What we do now is assign the result of register_jprobe() to ret, without
the side effect of the comparison.
Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Gerrit Renker [Mon, 1 Feb 2010 02:12:19 +0000 (02:12 +0000)]
dccp: fix bug in cache allocation
This fixes a bug introduced in commit de4ef86cfce60d2250111f34f8a084e769f23b16
("dccp: fix dccp rmmod when kernel configured to use slub", 17 Jan): the
vsnprintf used sizeof(slab_name_fmt), which became truncated to 4 bytes, since
slab_name_fmt is now a 4-byte pointer and no longer a 32-character array.
This lead to error messages such as
FATAL: Error inserting dccp: No buffer space available
>> kernel: [ 1456.341501] kmem_cache_create: duplicate cache cci
generated due to the truncation after the 3rd character.
Fixed for the moment by introducing a symbolic constant. Tested to fix the bug.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Cheblakov [Mon, 1 Feb 2010 09:42:44 +0000 (09:42 +0000)]
can: add support for CAN interface cards based on the PLX90xx PCI bridge
This driver is for CAN interface cards based on the PLX90xx PCI bridge.
Driver supports now:
- Adlink PCI-7841/cPCI-7841 card (http://www.adlinktech.com/)
- Adlink PCI-7841/cPCI-7841 SE card
- Marathon CAN-bus-PCI card (http://www.marathon.ru/)
- TEWS TECHNOLOGIES TPMC810 card (http://www.tews.com/)
Changes since v1:
- Added some defines for static inline int plx_pci_check_sja1000(...)
- static struct pci_device_id plx_pci_tbl[] replaced by
static DEFINE_PCI_DEVICE_TABLE(plx_pci_tbl)
- Typo fixed
Signed-off-by: Pavel Cheblakov <P.B.Cheblakov@inp.nsk.su> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The book keeping structure for transmit always had the flags value
cleared so transmit DMA maps were never released correctly.
Based on patch by Jarek Poplawski, problem observed by Michael Breuer.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Mohr [Sun, 31 Jan 2010 02:58:42 +0000 (02:58 +0000)]
MCS7830 USB-Ether: resume _with_ working link, via .reset_resume support
ChangeLog:
Implement .reset_resume support to retain a live network connection
during suspend despite USB power loss.
- rework operation to reference cached data in mcs7830_data and
netdev->dev_addr
- update netdev->dev_addr only in case new MAC was set successfully
. Tests done:
. ethtool -d pre-/post-suspend: register values match
. running ssh session suspend, resume: works
. ifdown device, suspend, resume: works
. ifup, suspend, unplug, resume: WORKS (eth1 is removed, re-ifup of eth1
after card replug works)
. verified identical MAC in ifconfig post-resume
(ok, should be verified on network side to be fully certain...)
Keywords: suspend resume network connection dead interface down
Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Dobriyan [Sat, 30 Jan 2010 10:05:05 +0000 (10:05 +0000)]
netlink: fix for too early rmmod
Netlink code does module autoload if protocol userspace is asking for is
not ready. However, module can dissapear right after it was autoloaded.
Example: modprobe/rmmod stress-testing and xfrm_user.ko providing NETLINK_XFRM.
netlink_create() in such situation _will_ create userspace socket and
_will_not_ pin module. Now if module was removed and we're going to call
->netlink_rcv into nothing:
BUG: unable to handle kernel paging request at ffffffffa02f842a
^^^^^^^^^^^^^^^^
modules are loaded near these addresses here
Alexey Dobriyan [Sat, 30 Jan 2010 02:53:27 +0000 (02:53 +0000)]
af_key: fix netns ops ordering on module load/unload
1. After sock_register() returns, it's possible to create sockets,
even if module still not initialized fully (blame generic module code
for that!)
2. Consequently, pfkey_create() can be called with pfkey_net_id still not
initialized which will BUG_ON in net_generic():
kernel BUG at include/net/netns/generic.h:43!
3. During netns shutdown, netns ops should be unregistered after
key manager unregistered because key manager calls can be triggered
from xfrm_user module:
general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
pfkey_broadcast+0x111/0x210 [af_key]
pfkey_send_notify+0x16a/0x300 [af_key]
km_state_notify+0x41/0x70
xfrm_flush_sa+0x75/0x90 [xfrm_user]
4. Unregister netns ops after socket ops just in case and for symmetry.
Reported by Luca Tettamanti.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Tested-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
On Tue, Feb 02, 2010 at 02:57:14PM -0800, Greg KH (gregkh@suse.de) wrote:
> > There are at least two ways to fix it: using a big cannon and a small
> > one. The former way is to disable notification registration, since it is
> > not used by anyone at all. Second way is to check whether calling
> > process is root and its destination group is -1 (kind of priveledged
> > one) before command is dispatched to workqueue.
>
> Well if no one is using it, removing it makes the most sense, right?
>
> No objection from me, care to make up a patch either way for this?
Getting it is not used, let's drop support for notifications about
(un)registered events from connector.
Another option was to check credentials on receiving, but we can always
restore it without bugs if needed, but genetlink has a wider code base
and none complained, that userspace can not get notification when some
other clients were (un)registered.
Kudos for Sebastian Krahmer <krahmer@suse.de>, who found a bug in the
code.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Loopback test (offline) added in ethtool self test.
o Set device in loopback mode
o Send packets
o Process receive packets in qlcnic_process_rcv_ring_diag()
o Compare packets
o Reset device in normal mode.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Interrupt test (offline) added in ethtool self test.
Register a temporary interrupt handler and then send command to fw
to raise an interrupt.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
qlcnic: support LED blink for device identification
Added support of device identification by blinking LED for specified time.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
o context resources can be in used, while resoruce cleanup is in progress,
during fw recover.
o Null pointer execption can occur in send_cmd_desc, if fw recovery
module frees tx ring without rtnl lock.
o Same applies to ethtool register dump and FW health registers should be dump
in any case.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Added missing identifier that distinguishes between
FCOE/ISCSI/ETHERNET functions.
Signed-off-by: Rajesh K Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Shirley Ma [Fri, 29 Jan 2010 03:20:04 +0000 (03:20 +0000)]
virtio_net: Defer skb allocation in receive path Date: Wed, 13 Jan 2010 12:53:38 -0800
virtio_net receives packets from its pre-allocated vring buffers, then it
delivers these packets to upper layer protocols as skb buffs. So it's not
necessary to pre-allocate skb for each mergable buffer, then frees extra
skbs when buffers are merged into a large packet. This patch has deferred
skb allocation in receiving packets for both big packets and mergeable buffers
to reduce skb pre-allocations and skb frees. It frees unused buffers by calling
detach_unused_buf in vring, so recv skb queue is not needed.
Signed-off-by: Shirley Ma <xma@us.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Shirley Ma [Fri, 29 Jan 2010 03:19:05 +0000 (03:19 +0000)]
virtio: Add ability to detach unused buffers from vrings
There's currently no way for a virtio driver to ask for unused
buffers, so it has to keep a list itself to reclaim them at shutdown.
This is redundant, since virtio_ring stores that information. So
add a new hook to do this.
Signed-off-by: Shirley Ma <xma@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Some single chip family devices are sold in the market with
802.11n bonded out, these have no hardware capability for
802.11n but ath9k can still support them. These are called
AR2427.
Cc: stable@kernel.org Reported-by: Rolf Leggewie <bugzilla.kernel.org@rolf.leggewie.biz> Tested-by: Bernhard Reiter <ockham@raz.or.at> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Patch prevents call set_wep_key() with zero key length. That fix long
standing regression since commit c0380693520b1a1e4f756799a0edc379378b462a
"airo: clean up WEP key operations". Additionally print call trace when
someone will try to use improper parameters, and remove key.len = 0
assignment, because it is in not possible code path.
Reported-by: Chris Siebenmann <cks-rhbugzilla@cs.toronto.edu> Bisected-by: Chris Siebenmann <cks-rhbugzilla@cs.toronto.edu> Tested-by: Chris Siebenmann <cks@cs.toronto.edu> Cc: Dan Williams <dcbw@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sathya Perla [Tue, 2 Feb 2010 15:48:40 +0000 (07:48 -0800)]
be2net: use eq-id to calculate cev-isr reg offset
cev-isr reg offset for each function is better calculated using (any) eq-id
alloted to that function instead of using pci-func number(which
does not work in some configurations...)
Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Flavio Leitner [Tue, 2 Feb 2010 15:32:29 +0000 (07:32 -0800)]
igmp: fix ip_mc_sf_allow race [v5]
Almost all igmp functions accessing inet->mc_list are protected by
rtnl_lock(), but there is one exception which is ip_mc_sf_allow(),
so there is a chance of either ip_mc_drop_socket or ip_mc_leave_group
remove an entry while ip_mc_sf_allow is running causing a crash.
Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Oliver Hartkopp [Tue, 2 Feb 2010 15:21:34 +0000 (07:21 -0800)]
can: deny filterlist access on non-CAN interfaces
In commit 20dd3850bcf860561496827b711fa10fecf6e787 "can: Speed up CAN frame
receiption by using ml_priv" the formerly used hlist of receiver lists for
each CAN netdevice has been replaced.
The hlist content ensured only CAN netdevices to be accessed by the
can_rx_(un)register() functions which accidently dropped away together with
the hlist receiver implementation.
This patch re-introduces the check for CAN netdevices in can_rx_(un)register().
Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Roskin [Sun, 31 Jan 2010 02:37:24 +0000 (21:37 -0500)]
ath9k: fix access to freed data on unload
Calling ath_bus_cleanup() after ieee80211_free_hw() resulted in access
to common->bus_ops, which is already freed as part of the device data.
Remove the cleanup field in struct ath_bus_ops, as it was never used
properly. Remove ath_bus_cleanup(). Merge cleanup functions in place
of the ath_bus_cleanup() calls. Take care not to use any device data
after ieee80211_free_hw().
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 31 Jan 2010 22:25:24 +0000 (23:25 +0100)]
mac80211: fix sta lookup with AP VLAN interfaces and injected frames
When injecting frames, mac80211 currently looks for the first AP
interface that matches the source address of the injected frame.
This breaks when such a frame is directed at a STA that has been moved
to a VLAN. This patch fixes it by using sta_info_get_bss instead of
sta_info_get, which also finds stations belonging to a VLAN interface
of the same BSS as the AP interface.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
When an injected frame gets buffered for a powersave STA or filtered
and retransmitted, mac80211 attempts to parse the radiotap header
again, which doesn't work because it's gone at that point.
This patch adds a new flag for checking the availability of a radiotap
header, so that it only attempts to parse it once, reusing the tx info
on the next call to ieee80211_tx().
This fixes severe issues with rekeying in AP mode.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 31 Jan 2010 20:50:12 +0000 (21:50 +0100)]
mac80211: fix sta lookup for received action frames on an AP VLAN
When looking for a matching interface, __ieee80211_rx_handle_packet
loops over all active interfaces, looking for matching stations.
Because AP VLAN interfaces are not processed as part of this loop, it
needs to use sta_info_get_bss instead of sta_info_get in order to find
a STA that has been moved to a VLAN.
This fixes issues with aggregation setup/teardown.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pavel Roskin [Sun, 31 Jan 2010 00:55:09 +0000 (19:55 -0500)]
mac80211: reduce stack usage in sta_ht_capa_read()
The maximal size of the "ht_capa" file is 430 bytes. In most cases,
it's much shorter. Use a 512 byte long buffer. 1024 bytes is too much
and causes a warning with CONFIG_FRAME_WARN=1024.
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This adds a new regulatory hint to be used when we know all
devices have been disconnected and idle. This can happen
when we suspend, for instance. When we disconnect we can
no longer assume the same regulatory rules learned from
a country IE or beacon hints are applicable so restore
regulatory settings to an initial state.
Since driver hints are cached on the wiphy that called
the hint, those hints are not reproduced onto cfg80211
as the wiphy will respect its own wiphy->regd regardless.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
cfg80211: avoid flushing the global workqueue for core reg hints
When cfg80211 starts it will send a core regulatory hint. This is
sent to the global workqueue but we force processing of it by
flushing the global workqueue. The flushing was done since
cfg80211 needs last_request to always be populated.
Avoid flushing the global workqueue by processing the work
required immediately instead of putting it into a linked
list and processing it after the flush.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Joe Perches [Thu, 28 Jan 2010 20:59:29 +0000 (20:59 +0000)]
tulip/xircom_cb.c: Use dev_<level> and pr_<level>
Convert printks to dev_<level> where a dev is available
Convert printks to pr_<level> where not
Coalesce format strings
Change print formats with %d.dx to %0dx
Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
Remove DRV_NAME and xircom_cb from pr_<level>
Convert embedded function names in logging messages to %s, __func__
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Thu, 28 Jan 2010 20:59:28 +0000 (20:59 +0000)]
tulip/winbond-840.c: Use dev_<level> and pr_<level>
Convert printks to dev_<level> where a dev is available
Convert printks to pr_<level> where not
Coalesce format strings
Change print formats with %d.dx to %0dx
Convert %d.%d.%d.%d to %pI4
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Thu, 28 Jan 2010 20:59:27 +0000 (20:59 +0000)]
tulip/uli526x.c: Use dev_<level> and pr_<level>
Convert printks to dev_<level> where a dev is available
Convert printks to pr_<level> where not
Coalesce format strings
Change print formats with %d.dx to %0dx
Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
Remove DRV_NAME from logging messages
Add do {} while(0) to ULI526X_DBUG macro
Make SHOW_MEDIA_TYPE macro more readable
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Thu, 28 Jan 2010 20:59:26 +0000 (20:59 +0000)]
tulip/timer.c: Use dev_<level> and pr_<level>
Convert printks to dev_<level> where a dev is available
Convert printks to pr_<level> where not
Coalesce format strings
Change print formats with %d.dx to %0dx
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Thu, 28 Jan 2010 20:59:25 +0000 (20:59 +0000)]
tulip/pnic2.c: Use dev_<level> and pr_<level>
Convert printks to dev_<level> where a dev is available
Convert printks to pr_<level> where not
Coalesce format strings
Change print formats with %d.dx to %0dx
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Thu, 28 Jan 2010 20:59:24 +0000 (20:59 +0000)]
tulip/pnic.c: Use dev_<level> and pr_<level>
Convert printks to dev_<level> where a dev is available
Convert printks to pr_<level> where not
Coalesce format strings
Change print formats with %d.dx to %0dx
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>