Eric Dumazet [Mon, 30 Nov 2009 20:53:30 +0000 (12:53 -0800)]
tcp: tcp_disconnect() should clear window_clamp
NFS can reuse its TCP socket after calling tcp_disconnect().
We noticed window scaling was not negotiated in SYN packet of next
connection request.
Fix is to clear tp->window_clamp in tcp_disconnect().
Reported-by: Krzysztof Oledzki <ole@ans.pl>
Tested-by: Krzysztof Oledzki <ole@ans.pl>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 30 Nov 2009 08:13:28 +0000 (00:13 -0800)]
b44: Fix wedge when using netconsole.
Fixes kernel bugzilla #14691
Due to the way netpoll works, it is perfectly legal to see
NAPI already scheduled when new device events are pending
in b44_interrupt().
So logging a message about it is wrong and in fact harmful.
Based upon a patch by Andreas Mohr.
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Sun, 29 Nov 2009 06:02:55 +0000 (06:02 +0000)]
wan: cosa: drop chan->wsem on error path
The other paths all drop chan->wsem. This was found by a static
checker (smatch).
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Sat, 28 Nov 2009 13:57:00 +0000 (13:57 +0000)]
ep93xx-eth: check for zero MAC address on probe, not on device open
If we happen to have registered the driver without passing
a MAC address, we will print a zero MAC address and register
the interface with this invalid address, this is confusin. This
patch moves the checking of a valid ethernet address and the
generation of a random one down from the open function to
the probe function.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King - ARM Linux [Sat, 28 Nov 2009 00:13:23 +0000 (00:13 +0000)]
NET: smc91x: Fix irq flags
smc91x.h defines SMC_IRQ_FLAGS to be -1 when it wants the interrupt
flags to be taken from the resource structure. However,
d280ead
changed this to checking for non-zero resource flags.
Unfortunately, this means that on some platforms, we end up passing
'-1' to request_irq rather than the desired result. Combine the two
conditions into one so that the IRQ flags are taken from the resource
if either SMC_IRQ_FLAGS is -1 or the resource flags specify an
interrupt trigger.
This restores network on at least the Versatile platform.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Nov 2009 07:14:45 +0000 (23:14 -0800)]
smsc9420: prevent BUG() if ethtool is called with interface down
This patch fixes a null pointer dereference BUG() if ethtool is used on
an smsc9420 interface while it is down, because the phy_dev is only
allocated while the interface is up.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Vecera [Mon, 30 Nov 2009 07:12:52 +0000 (23:12 -0800)]
r8169: restore mac addr in rtl8169_remove_one and rtl_shutdown
The newer chipsets (all PCI-E) are known that they need full power cycle
(AC or battery removal) to reset MAC address to a hardwired one. Previous
patch to address this problem loads the original MAC address from EEPROM.
But it brought other problem for which it is necessary to introduce a new
module parameter.
However, it might suffice to restore the initial MAC address before
shutdown/reboot/kexec and when removing the module.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ford [Mon, 30 Nov 2009 07:02:22 +0000 (23:02 -0800)]
ipv4: additional update of dev_net(dev) to struct *net in ip_fragment.c, NULL ptr OOPS
ipv4 ip_frag_reasm(), fully replace 'dev_net(dev)' with 'net', defined
previously patched into 2.6.29.
Between 2.6.28.10 and 2.6.29, net/ipv4/ip_fragment.c was patched,
changing from dev_net(dev) to container_of(...). Unfortunately the goto
section (out_fail) on oversized packets inside ip_frag_reasm() didn't
get touched up as well. Oversized IP packets cause a NULL pointer
dereference and immediate hang.
I discovered this running openvasd and my previous email on this is
titled: NULL pointer dereference at 2.6.32-rc8:net/ipv4/ip_fragment.c:566
Signed-off-by: David Ford <david@blue-labs.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roger Oksanen [Mon, 30 Nov 2009 01:17:29 +0000 (17:17 -0800)]
e100: Use pci pool to work around GFP_ATOMIC order 5 memory allocation failure
pci_alloc_consistent uses GFP_ATOMIC allocation that may fail on some systems
with limited memory (Bug #14265). pci_pool_alloc allows waiting with
GFP_KERNEL.
Tested-by: Karol Lewandowski <karol.k.lewandowski@gmail.com>
Signed-off-by: Roger Oksanen <roger.oksanen@cs.helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrei Pelinescu-Onciul [Sun, 29 Nov 2009 08:14:02 +0000 (00:14 -0800)]
sctp: on T3_RTX retransmit all the in-flight chunks
When retransmitting due to T3 timeout, retransmit all the
in-flight chunks for the corresponding transport/path, including
chunks sent less then 1 rto ago.
This is the correct behaviour according to rfc4960 section 6.3.3
E3 and
"Note: Any DATA chunks that were sent to the address for which the
T3-rtx timer expired but did not fit in one MTU (rule E3 above)
should be marked for retransmission and sent as soon as cwnd
allows (normally, when a SACK arrives). ".
This fixes problems when more then one path is present and the T3
retransmission of the first chunk that timeouts stops the T3 timer
for the initial active path, leaving all the other in-flight
chunks waiting forever or until a new chunk is transmitted on the
same path and timeouts (and this will happen only if the cwnd
allows sending new chunks, but since cwnd was dropped to MTU by
the timeout => it will wait until the first heartbeat).
Example: 10 packets in flight, sent at 0.1 s intervals on the
primary path. The primary path is down and the first packet
timeouts. The first packet is retransmitted on another path, the
T3 timer for the primary path is stopped and cwnd is set to MTU.
All the other 9 in-flight packets will not be retransmitted
(unless more new packets are sent on the primary path which depend
on cwnd allowing it, and even in this case the 9 packets will be
retransmitted only after a new packet timeouts which even in the
best case would be more then RTO).
This commit reverts
d0ce92910bc04e107b2f3f2048f07e94f570035d and
also removes the now unused transport->last_rto, introduced in
b6157d8e03e1e780660a328f7183bcbfa4a93a19.
p.s The problem is not only when multiple paths are there. It
can happen in a single homed environment. If the application
stops sending data, it possible to have a hung association.
Signed-off-by: Andrei Pelinescu-Onciul <andrei@iptel.org>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 24 Nov 2009 22:50:53 +0000 (14:50 -0800)]
pktgen: Fix netdevice unregister
When multi queue compatable names are used by pktgen (eg eth0@0),
we currently cannot unload a NIC driver if one of its device
is currently in use.
Allow pktgen_find_dev() to find pktgen devices by their suffix (netdev name)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Mon, 23 Nov 2009 22:18:53 +0000 (14:18 -0800)]
macvlan: fix gso_max_size setting
gso_max_size must be set based on the value of the underlying device to
support devices not using the full 64k.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 23 Nov 2009 22:01:47 +0000 (14:01 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
Johannes Berg [Mon, 23 Nov 2009 10:27:30 +0000 (11:27 +0100)]
rfkill: fix miscdev ops
The /dev/rfkill ops don't refer to the module,
so it is possible to unload the module while
file descriptors are open. Fix this oversight.
Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Mon, 23 Nov 2009 21:15:19 +0000 (16:15 -0500)]
ath9k: set ps_default as false
Copied from original one-line patch here:
http://bugzilla.kernel.org/show_bug.cgi?id=14267#c26
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Antti Kaijanmäki [Mon, 23 Nov 2009 18:54:47 +0000 (10:54 -0800)]
hso: fix soft-lockup
Fix soft-lockup in hso.c which is triggered on SMP machine when
modem is removed while file descriptor(s) under /dev are still open:
old version called kref_put() too early which resulted in destroying
hso_serial and hso_device objects which were still used later on.
Signed-off-by: Antti Kaijanmäki <antti.kaijanmaki@nomovok.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Antti Kaijanmäki [Mon, 23 Nov 2009 18:54:24 +0000 (10:54 -0800)]
hso: fix debug routines
Signed-off-by: Antti Kaijanmäki <antti.kaijanmaki@nomovok.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 23 Nov 2009 01:44:37 +0000 (01:44 +0000)]
pktgen: Fix device name compares
Commit
e6fce5b916cd7f7f7 (pktgen: multiqueue etc.) tried to relax
the pktgen restriction of one device per kernel thread, adding a '@'
tag to device names.
Problem is we dont perform check on full pktgen device name.
This allows adding many time same 'device' to pktgen thread
pgset "add_device eth0@0"
one session later :
pgset "add_device eth0@0"
(This doesnt find previous device)
This consumes ~1.5 MBytes of vmalloc memory per round and also triggers
this warning :
[ 673.186380] proc_dir_entry 'pktgen/eth0@0' already registered
[ 673.186383] Modules linked in: pktgen ixgbe ehci_hcd psmouse mdio mousedev evdev [last unloaded: pktgen]
[ 673.186406] Pid: 6219, comm: bash Tainted: G W
2.6.32-rc7-03302-g41cec6f-dirty #16
[ 673.186410] Call Trace:
[ 673.186417] [<
ffffffff8104a29b>] warn_slowpath_common+0x7b/0xc0
[ 673.186422] [<
ffffffff8104a341>] warn_slowpath_fmt+0x41/0x50
[ 673.186426] [<
ffffffff8114e789>] proc_register+0x109/0x210
[ 673.186433] [<
ffffffff8100bf2e>] ? apic_timer_interrupt+0xe/0x20
[ 673.186438] [<
ffffffff8114e905>] proc_create_data+0x75/0xd0
[ 673.186444] [<
ffffffffa006ad38>] pktgen_thread_write+0x568/0x640 [pktgen]
[ 673.186449] [<
ffffffffa006a7d0>] ? pktgen_thread_write+0x0/0x640 [pktgen]
[ 673.186453] [<
ffffffff81149144>] proc_reg_write+0x84/0xc0
[ 673.186458] [<
ffffffff810f5a58>] vfs_write+0xb8/0x180
[ 673.186463] [<
ffffffff810f5c11>] sys_write+0x51/0x90
[ 673.186468] [<
ffffffff8100b51b>] system_call_fastpath+0x16/0x1b
[ 673.186470] ---[ end trace
ccbb991b0a8d994d ]---
Solution to this problem is to use a odevname field (includes @ tag and suffix),
instead of using netdevice name.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Sun, 22 Nov 2009 22:59:56 +0000 (22:59 +0000)]
stmmac: do not fail when the timer cannot be used.
If the external timer cannot be used the driver
will continue to work without mitigation.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Sun, 22 Nov 2009 22:58:40 +0000 (22:58 +0000)]
stmmac: fixed a compilation error when use the external timer
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 23 Nov 2009 17:52:51 +0000 (09:52 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/kaber/nf-2.6
Patrick McHardy [Mon, 23 Nov 2009 12:37:23 +0000 (13:37 +0100)]
netfilter: xt_limit: fix invalid return code in limit_mt_check()
Commit
acc738fe (netfilter: xtables: avoid pointer to self) introduced
an invalid return value in limit_mt_check().
Signed-off-by: Patrick McHardy <kaber@trash.net>
Alexander Beregalov [Mon, 23 Nov 2009 04:40:52 +0000 (20:40 -0800)]
Au1x00: fix crash when trying register_netdev()
Andreas Lohre reported that the driver crashes when trying
to register_netdev(), he sugessted to move dev->netdev_ops initialization
before calling register_netdev(), it worked for him.
Reported-by: Andreas Lohre <alohre@gmail.com>
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Narender Kumar [Fri, 20 Nov 2009 22:08:57 +0000 (22:08 +0000)]
netxen : fix BOND_MODE_TLB/ALB mode.
o Along with netdev->perm_addr, mac address will be
maintained in device private structure.
o Device limitation: We need to set mac address when ever
interface comes up.
In ALB/TAL mode, bonding driver calls set_mac for all slave with bond mac address.
But bonding driver set netdev->dev_addr field to its original value,
after enslaving interfaces.
When ever active slave changes, it swap dev_addr of inactive slave with active.
Yet it doesn't notify driver about change in netdev->dev_addr.
As netxen driver need to set mac addr when ever interface comes up,
it can't rely on netdev->dev_addr field. Specially in case of bonding mode ALB/TLB.
Signed-off-by: Narender Kumar <narender.kumar@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Narender Kumar [Fri, 20 Nov 2009 15:09:33 +0000 (15:09 +0000)]
netxen: fix promisc for NX2031.
Kernel crashes, if promisc mode set without disabling rx queue.
Before changing mode in NX2031 chip, wait till rx queue drains.
Signed-off-by: Narender Kumar <narender.kumar@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amit Kumar Salecha [Fri, 20 Nov 2009 15:09:32 +0000 (15:09 +0000)]
netxen: fix memory initialization
Avoid resetting memory during initialization, skip this memory
block during driver probe.
Signed-off-by: Amit Kumar Salecha <amit@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
chaithrika@ti.com [Thu, 1 Oct 2009 10:25:19 +0000 (10:25 +0000)]
TI DaVinci EMAC: Minor macro related updates
Use BIT for macro definitions wherever possible, remove
unused and redundant macros.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David J. Choi [Thu, 19 Nov 2009 15:34:30 +0000 (15:34 +0000)]
drivers/net: ks8851_mll ethernet network driver -resubmit
Summary of Changes:
-Fix to receive multicast packets by setting the corresponding hardware
bit during initialization.
-Fix to re-enable the interface [by interface up command(ifup)] while the
interface is down.
-Fix to be able to down the interface by passing the last parameter
correctly to request_irq().
-Remove to read 4 extra bytes from the receiving queue after reading a
packet, even though it does not cause a predictable issue now.
-Remove occurrences of transmission done interrupt in order to tx
throughput enhancement.
-Enable IP checksum for packet receiving by setting the corresponding
hardware bit during initialization.
-Relocate ks_enable_int()/ks_disable_int() in order not to declare those
functions at the beginning of the file.
-Rename ks_enable()/_disable() to ks_enable_qmu()/ks_disable_qmu() in
order to give more meaningful names and relocate them not declaire
those functions at the beginning of the file.
Signed-off-by: David J. Choi <david.choi@micrel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Geert Uytterhoeven [Fri, 20 Nov 2009 09:19:10 +0000 (09:19 +0000)]
net: ETHOC should depend on HAS_DMA
When building for Sun 3:
drivers/net/ethoc.c:1091: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `ethoc_probe':
drivers/net/ethoc.c:965: undefined reference to `dma_alloc_coherent'
drivers/net/ethoc.c:1063: undefined reference to `dma_free_coherent'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 14:17:30 +0000 (14:17 +0000)]
e1000e: do not initiate autonegotiation during OEM configuration
When configuring the OEM bits in the PHY on 82577/82578, do not restart
autonegotiation if the firmware is blocking it (e.g. when an IDE-R session
is active) because the link must not go down.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 12:36:04 +0000 (12:36 +0000)]
e1000e: remove unnecessary 82577 workaround causing link issues
A workaround for pre-release versions of 82577 is causing link issues on
some switches. The workaround is no longer needed on production parts so
remove it.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 12:35:45 +0000 (12:35 +0000)]
e1000e: flow control thresholds not correct when changing mtu
When changing MTU, save it off prior to resetting otherwise the flow control
thresholds may be miscalculated.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 12:35:26 +0000 (12:35 +0000)]
e1000e: add Tx timeout factor for 100Mbps
On some devices (e.g. 82578) not having a Tx timeout factor when linked at
100Mbps can cause false reports of hardware hangs on busy hubs.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 12:35:08 +0000 (12:35 +0000)]
e1000e: set flow control thresholds properly after enabling/disabling pause
When flow control (pause) parameters were changed via ethtool (i.e. enabled
or disabled), the newly calculated thresholds were not being written to the
device for non-fiber media.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 12:34:40 +0000 (12:34 +0000)]
e1000e: read of PHY register may access wrong page on 82578
Remove unnecessary workaround that mistakenly does not perform a page
select operation for PHY registers 29 and 30 (assuming these are the PHY
debug port address and data registers) on 82578 which can cause reads
of the Transmit with No Carrier Sense statistics register on page 778 to be
read from an incorrect page. Also error out if the page select operation
fails.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bruce Allan [Thu, 19 Nov 2009 12:34:20 +0000 (12:34 +0000)]
e1000e: partial revert of
3ec2a2b8 plus FC workraround for 82577/8
Commit
3ec2a2b80f3eb53851fe4cef9e65b5d33376ef89 broke Tx/Rx when using
jumbo frames on certain parts (i.e. only PAUSE frames could be exchanged
once the high water mark was reached preventing normal packet traffic).
This patch reverts the breakage and sets appropriate high and low water
marks of the Rx FIFO for 82577/82578 which require a workaround due to a
flow control issue in hardware.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jaswinder Singh Rajput [Fri, 20 Nov 2009 04:02:27 +0000 (04:02 +0000)]
ixgbe: move tc variable to CONFIG_IXGBE_DCB
tc is required by CONFIG_IXGBE_DCB.
This also fixes compilation warning:
drivers/net/ixgbe/ixgbe_main.c: In function ‘ixgbe_tx_is_paused’:
drivers/net/ixgbe/ixgbe_main.c:245: warning: unused variable ‘tc’
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Thu, 19 Nov 2009 04:59:05 +0000 (04:59 +0000)]
netfilter: nf_log: fix sleeping function called from invalid context in seq_show()
[ 171.925285] BUG: sleeping function called from invalid context at kernel/mutex.c:280
[ 171.925296] in_atomic(): 1, irqs_disabled(): 0, pid: 671, name: grep
[ 171.925306] 2 locks held by grep/671:
[ 171.925312] #0: (&p->lock){+.+.+.}, at: [<
c10b8acd>] seq_read+0x25/0x36c
[ 171.925340] #1: (rcu_read_lock){.+.+..}, at: [<
c1391dac>] seq_start+0x0/0x44
[ 171.925372] Pid: 671, comm: grep Not tainted 2.6.31.6-4-netbook #3
[ 171.925380] Call Trace:
[ 171.925398] [<
c105104e>] ? __debug_show_held_locks+0x1e/0x20
[ 171.925414] [<
c10264ac>] __might_sleep+0xfb/0x102
[ 171.925430] [<
c1461521>] mutex_lock_nested+0x1c/0x2ad
[ 171.925444] [<
c1391c9e>] seq_show+0x74/0x127
[ 171.925456] [<
c10b8c5c>] seq_read+0x1b4/0x36c
[ 171.925469] [<
c10b8aa8>] ? seq_read+0x0/0x36c
[ 171.925483] [<
c10d5c8e>] proc_reg_read+0x60/0x74
[ 171.925496] [<
c10d5c2e>] ? proc_reg_read+0x0/0x74
[ 171.925510] [<
c10a4468>] vfs_read+0x87/0x110
[ 171.925523] [<
c10a458a>] sys_read+0x3b/0x60
[ 171.925538] [<
c1002a49>] syscall_call+0x7/0xb
Fix it by replacing RCU with nf_log_mutex.
Reported-by: "Yin, Kangkai" <kangkai.yin@intel.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Thu, 19 Nov 2009 04:59:03 +0000 (04:59 +0000)]
netfilter: xt_osf: fix xt_osf_remove_callback() return value
Return a negative error value.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 18 Nov 2009 07:09:39 +0000 (07:09 +0000)]
veth: Fix veth_get_stats()
veth_get_stats() can be called in parallel on several cpus.
It's better to not reset dev->stats as it could give wrong result on
one cpu. Use temporary variables, then store the final results.
Also, we should loop on every possible cpus, not only online cpus,
or cpu hotplug can suddenly give wrong veth stats.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 19 Nov 2009 01:28:10 +0000 (01:28 +0000)]
ieee802154: dont leak skbs in ieee802154_fake_xmit()
ieee802154_fake_xmit() should free skbs since it returns NETDEV_TX_OK
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johannes Berg [Thu, 19 Nov 2009 13:29:39 +0000 (14:29 +0100)]
mac80211: fix resume
When mac80211 resumes, it currently first sets suspended
to false so the driver can start doing things and we can
receive frames.
However, if we actually receive frames then it can end
up starting some work which adds timers and then later
runs into a BUG_ON in the timer code because it tries
add_timer() on a pending timer.
Fix this by keeping track of the resuming process by
introducing a new variable 'resuming' which gets set to
true early on instead of setting 'suspended' to false,
and allow queueing work but not receiving frames while
resuming.
Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Thu, 19 Nov 2009 02:49:49 +0000 (18:49 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix stale cpufreq_cpu_governor pointer
[CPUFREQ] Resolve time unit thinko in ondemand/conservative govs
[CPUFREQ] speedstep-ich: fix error caused by
394122ab144dae4b276d74644a2f11c44a60ac5c
[CPUFREQ] Fix use after free on governor restore
[CPUFREQ] acpi-cpufreq: blacklist Intel 0f68: Fix HT detection and put in notification message
[CPUFREQ] powernow-k8: Fix test in get_transition_latency()
[CPUFREQ] longhaul: select Longhaul version 2 for capable CPUs
Linus Torvalds [Wed, 18 Nov 2009 21:31:52 +0000 (22:31 +0100)]
strcmp: fix overflow and possibly signedness error
Doing the strcmp return value as
signed char __res = *cs - *ct;
is wrong for two reasons. The subtraction can overflow because __res
doesn't use a type big enough. Moreover the compared bytes should be
interpreted as unsigned char as specified by POSIX.
The same problem is fixed in strncmp.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 19 Nov 2009 01:08:16 +0000 (17:08 -0800)]
Merge branch 'agp-fixes' of git://git./linux/kernel/git/airlied/agp-2.6
* 'agp-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
agp/intel-agp: Set dma_mask for capable chipsets before agp_add_bridge()
Linus Torvalds [Thu, 19 Nov 2009 00:58:34 +0000 (16:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
ima: replace GFP_KERNEL with GFP_NOFS
David Woodhouse [Wed, 18 Nov 2009 10:22:46 +0000 (10:22 +0000)]
agp/intel-agp: Set dma_mask for capable chipsets before agp_add_bridge()
We should set this before calling agp_add_bridge() so that it's done
before we map the scratch page too.
This should probably fix the regression reported as k.o. bug #14627.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Wed, 18 Nov 2009 23:00:21 +0000 (15:00 -0800)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
OMAP: cs should be positive in gpmc_cs_free()
omap: fix unlikely(x) < y
omap3: clock: Fixed dpll3_m2x2 rate calculation
omap3: clock: Fix the DPLL freqsel computations
omap: Fix keymap for zoom2 according to matrix keypad framwork
Linus Torvalds [Wed, 18 Nov 2009 22:59:49 +0000 (14:59 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: tlv320aic23 fix rate selection
ASoC: OMAP3 Pandora: update for TWL4030 codec changes
ASoC: Modifying the license string GPLv2 for OMAP3 EVM
ALSA: hda - Fix quirk for VAIO type G
ALSA: usb - Quirk to disable master volume control in PCM2702
Linus Torvalds [Wed, 18 Nov 2009 22:54:45 +0000 (14:54 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
cxgb3: fix premature page unmap
ibm_newemac: Fix EMACx_TRTR[TRT] bit shifts
vlan: Fix register_vlan_dev() error path
gro: Fix illegal merging of trailer trash
sungem: Fix Serdes detection.
net: fix mdio section mismatch warning
ppp: fix BUG on non-linear SKB (multilink receive)
ixgbe: Fixing EEH handler to handle more than one error
net: Fix the rollback test in dev_change_name()
Revert "isdn: isdn_ppp: Use SKB list facilities instead of home-grown implementation."
TI Davinci EMAC : Fix Console Hang when bringing the interface down
smsc911x: Fix Console Hang when bringing the interface down.
mISDN: fix error return in HFCmulti_init()
forcedeth: mac address fix
r6040: fix version printing
Bluetooth: Fix regression with L2CAP configuration in Basic Mode
Bluetooth: Select Basic Mode as default for SOCK_SEQPACKET
Bluetooth: Set general bonding security for ACL by default
r8169: Fix receive buffer length when MTU is between 1515 and 1536
can: add the missing netlink get_xstats_size callback
...
Johannes Berg [Wed, 18 Nov 2009 16:15:06 +0000 (17:15 +0100)]
mac80211: fix addba timer (again...)
commit
2171abc58644e09dbba546d91366b12743115396
Author: Johannes Berg <johannes@sipsolutions.net>
Date: Thu Oct 29 08:34:00 2009 +0100
mac80211: fix addba timer
left a problem in there, even if the timer was
never started it could be deleted and then added.
Linus pointed out that del_timer_sync() isn't
actually needed if we make the timer able to
deal with no longer being needed when it gets
queued _while_ we're in the locked section that
also deletes it. For that the timer function only
needs to check the HT_ADDBA_RECEIVED_MSK bit as
well as the HT_ADDBA_REQUESTED_MSK bit, only if
the former is clear should it do anything.
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Mimi Zohar [Wed, 18 Nov 2009 21:16:06 +0000 (16:16 -0500)]
ima: replace GFP_KERNEL with GFP_NOFS
While running fsstress tests on the NFSv4 mounted ext3 and ext4
filesystem, the following call trace was generated on the nfs
server machine.
Replace GFP_KERNEL with GFP_NOFS in ima_iint_insert() to avoid a
potential deadlock.
=================================
[ INFO: inconsistent lock state ]
2.6.31-31.el6.x86_64 #1
---------------------------------
inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.
kswapd2/75 [HC0[0]:SC0[0]:HE1:SE1] takes:
(jbd2_handle){+.+.?.}, at: [<
ffffffff811edd5e>] jbd2_journal_start+0xfe/0x13f
{RECLAIM_FS-ON-W} state was registered at:
[<
ffffffff81091e40>] mark_held_locks+0x65/0x99
[<
ffffffff81091f31>] lockdep_trace_alloc+0xbd/0xf5
[<
ffffffff81126fdd>] kmem_cache_alloc+0x40/0x185
[<
ffffffff812344d7>] ima_iint_insert+0x3d/0xf1
[<
ffffffff812345b0>] ima_inode_alloc+0x25/0x44
[<
ffffffff811484ac>] inode_init_always+0xec/0x271
[<
ffffffff81148682>] alloc_inode+0x51/0xa1
[<
ffffffff81148700>] new_inode+0x2e/0x94
[<
ffffffff811b2f08>] ext4_new_inode+0xb8/0xdc9
[<
ffffffff811be611>] ext4_create+0xcf/0x175
[<
ffffffff8113e2cd>] vfs_create+0x82/0xb8
[<
ffffffff8113f337>] do_filp_open+0x32c/0x9ee
[<
ffffffff811309b9>] do_sys_open+0x6c/0x12c
[<
ffffffff81130adc>] sys_open+0x2e/0x44
[<
ffffffff81011e42>] system_call_fastpath+0x16/0x1b
[<
ffffffffffffffff>] 0xffffffffffffffff
irq event stamp: 90371
hardirqs last enabled at (90371): [<
ffffffff8112708d>]
kmem_cache_alloc+0xf0/0x185
hardirqs last disabled at (90370): [<
ffffffff81127026>]
kmem_cache_alloc+0x89/0x185
softirqs last enabled at (89492): [<
ffffffff81068ecf>]
__do_softirq+0x1bf/0x1eb
softirqs last disabled at (89477): [<
ffffffff8101312c>] call_softirq+0x1c/0x30
other info that might help us debug this:
2 locks held by kswapd2/75:
#0: (shrinker_rwsem){++++..}, at: [<
ffffffff810f98ba>] shrink_slab+0x44/0x177
#1: (&type->s_umount_key#25){++++..}, at: [<
ffffffff811450ba>]
Reported-by: Muni P. Beerakam <mbeeraka@in.ibm.com>
Reported-by: Amit K. Arora <amitarora@in.ibm.com>
Cc: stable@kernel.org
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Roel Kluin [Tue, 17 Nov 2009 22:39:06 +0000 (14:39 -0800)]
OMAP: cs should be positive in gpmc_cs_free()
The index `cs' is signed, test whether it is negative before we release
gpmc_cs_mem[cs].
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Roel Kluin [Tue, 17 Nov 2009 22:39:03 +0000 (14:39 -0800)]
omap: fix unlikely(x) < y
The closing parenthesis was not in the right location.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Takashi Iwai [Wed, 18 Nov 2009 15:38:58 +0000 (16:38 +0100)]
Merge branch 'fix/asoc' into for-linus
Takashi Iwai [Wed, 18 Nov 2009 15:38:49 +0000 (16:38 +0100)]
Merge branch 'fix/hda' into for-linus
Linus Torvalds [Wed, 18 Nov 2009 15:38:19 +0000 (07:38 -0800)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fixup last users of irq_chip->typename
uio: pm_runtime_disable is needed if failed
Linus Torvalds [Wed, 18 Nov 2009 15:37:51 +0000 (07:37 -0800)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: option.c: add support for D-Link DWM-162-U5
USB: usbmon: fix bug in mon_buff_area_shrink
USB: xhci: Fix scratchpad deallocation.
USB: xhci: Fix TRB physical to virtual address translation.
USB: xhci: Fix bug memory free after failed initialization.
USB: cdc_acm: Fix memory leak after hangup
USB: cdc_acm: Fix race condition when opening tty
USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer
Linus Torvalds [Wed, 18 Nov 2009 15:37:38 +0000 (07:37 -0800)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
tty: cp210x: Fix carrier handling
tty_port: If we are opened non blocking we still need to raise the carrier
Troy Kisky [Tue, 17 Nov 2009 20:51:01 +0000 (13:51 -0700)]
ASoC: tlv320aic23 fix rate selection
Fix the ordering of sr_valid_mask array.
The lower bit of the index represents USB
not bosr.
Reported-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Grazvydas Ignotas [Sat, 7 Nov 2009 21:16:12 +0000 (23:16 +0200)]
ASoC: OMAP3 Pandora: update for TWL4030 codec changes
A while ago TWL4030 had it's playback stream name changed, but
pandora needs it for it's playback path. Update to correct stream
name so that playback works again.
Also mark VIBRA output as not connected.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Anuj Aggarwal [Tue, 17 Nov 2009 16:13:42 +0000 (21:43 +0530)]
ASoC: Modifying the license string GPLv2 for OMAP3 EVM
Correcting the license string from GPLv2 -> GPL v2.
Found the problem while building OMAP3 ASoC driver as
module.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Divy Le Ray [Tue, 17 Nov 2009 16:38:28 +0000 (16:38 +0000)]
cxgb3: fix premature page unmap
unmap Rx page only when guaranteed that this page won't be
used anymore to allocate rx page chunks.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Mitchell [Tue, 17 Nov 2009 14:56:55 +0000 (14:56 +0000)]
ibm_newemac: Fix EMACx_TRTR[TRT] bit shifts
The TRT bit shifts were reversed for EMAC4 and non-EMAC4 during the
port from ibm_emac to ibm_newemac. This patch corrects that error.
Signed-off-by: Dave Mitchell <dmitchell@appliedmicro.com>
Acked-by: Feng Kan <fkan@appliedmicro.com>
Acked-by: Prodyut Hazarika <phazarika@appliedmicro.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prarit Bhargava [Thu, 12 Nov 2009 14:18:46 +0000 (09:18 -0500)]
[CPUFREQ] Fix stale cpufreq_cpu_governor pointer
Dave,
Attached is an update of my patch against the cpufreq fixes branch.
Before applying the patch I compiled and booted the tree to see if the panic
was still there -- to my surprise it was not. This is because of the conversion
of cpufreq_cpu_governor to a char[].
While the panic is kaput, the problem of stale data continues and my patch is
still valid. It is possible to end up with the wrong governor after hotplug
events because CPUFREQ_DEFAULT_GOVERNOR is statically linked to a default,
while the cpu siblings may have had a different governor assigned by a user.
ie) the patch is still needed in order to keep the governors assigned
properly when hotplugging devices
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Pallipadi, Venkatesh [Thu, 12 Nov 2009 00:50:29 +0000 (16:50 -0800)]
[CPUFREQ] Resolve time unit thinko in ondemand/conservative govs
ondemand and conservative governors are messing up time units in the
code path where NO_HZ is not enabled and ignore_nice is set. The walltime
idletime stored is in jiffies and nice time calculation is happening in
microseconds.
The problem was reported and diagnosed by Alexander here.
http://marc.info/?l=linux-kernel&m=
125752550404513&w=2
The patch below fixes this thinko.
Reported-by: Alexander Miller <Miller@fmi.uni-stuttgart.de>
Tested-by: Alexander Miller <Miller@fmi.uni-stuttgart.de>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Rusty Russell [Tue, 3 Nov 2009 07:35:30 +0000 (23:35 -0800)]
[CPUFREQ] speedstep-ich: fix error caused by
394122ab144dae4b276d74644a2f11c44a60ac5c
"[CPUFREQ] cpumask: avoid playing with cpus_allowed in speedstep-ich.c"
changed the code to mistakenly pass the current cpu as the "processor"
argument of speedstep_get_frequency(), whereas it should be the type of
the processor.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14340
Based on a patch by Dave Mueller.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Dominik Brodowski <linux@brodo.de>
Reported-by: Dave Mueller <dave.mueller@gmx.ch>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
Dmitry Monakhov [Sun, 4 Oct 2009 20:38:55 +0000 (00:38 +0400)]
[CPUFREQ] Fix use after free on governor restore
Currently on governer backup/restore path we storing governor's pointer.
This is wrong because one may unload governor's module after cpu goes
offline. As result use-after-free will take place on restored cpu.
It is not easy to exploit this bug, but still we have to close this
issue ASAP. Issue was introduced by following commit
084f34939424161669467c19280dbcf637730314
##TESTCASE##
#!/bin/sh -x
modprobe acpi_cpufreq
# Any non default governor, in may case it is "ondemand"
modprobe cpufreq_ondemand
echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
rmmod acpi_cpufreq
rmmod cpufreq_ondemand
modprobe acpi_cpufreq # << use-after-free here.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Dave Jones <davej@redhat.com>
John Villalovos [Fri, 25 Sep 2009 17:30:08 +0000 (13:30 -0400)]
[CPUFREQ] acpi-cpufreq: blacklist Intel 0f68: Fix HT detection and put in notification message
Removing the SMT/HT check, since the Errata doesn't mention
Hyper-Threading.
Adding in a printk, so that the user knows why acpi-cpufreq refuses to
load. Also, once system is blacklisted, don't repeat checks to see if
blacklisted. This also causes the message to only be printed once,
rather than for each CPU.
Signed-off-by: John L. Villalovos <john.l.villalovos@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Roel Kluin [Tue, 6 Oct 2009 15:36:53 +0000 (17:36 +0200)]
[CPUFREQ] powernow-k8: Fix test in get_transition_latency()
Not makes it a bool before the comparison.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Krzysztof Helt [Sat, 24 Oct 2009 15:25:38 +0000 (17:25 +0200)]
[CPUFREQ] longhaul: select Longhaul version 2 for capable CPUs
There is a typo in the longhaul detection code so only Longhaul v1 or Longhaul v3
is selected. The Longhaul v2 is not selected even for CPUs which are capable of.
Tested on PCChips Giga Pro board. Frequency changes work and the Longhaul v2
detects that the board is not capable of changing CPU voltage.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
Thomas Gleixner [Tue, 17 Nov 2009 22:50:45 +0000 (22:50 +0000)]
sh: Fixup last users of irq_chip->typename
The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Peter Zijlstra [Tue, 17 Nov 2009 22:06:24 +0000 (14:06 -0800)]
fcntl: rename F_OWNER_GID to F_OWNER_PGRP
This is for consistency with various ioctl() operations that include the
suffix "PGRP" in their names, and also for consistency with PRIO_PGRP,
used with setpriority() and getpriority(). Also, using PGRP instead of
GID avoids confusion with the common abbreviation of "group ID".
I'm fine with anything that makes it more consistent, and if PGRP is what
is the predominant abbreviation then I see no need to further confuse
matters by adding a third one.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stefani Seibold [Tue, 17 Nov 2009 22:06:23 +0000 (14:06 -0800)]
procfs: fix /proc/<pid>/stat stack pointer for kernel threads
Fix a small issue for the stack pointer in /proc/<pid>/stat. In case of a
kernel thread the value of the printed stack pointer should be 0.
Signed-off-by: Stefani Seibold <stefani@seibold.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Tue, 17 Nov 2009 22:06:22 +0000 (14:06 -0800)]
mm: allow memory hotplug and hibernation in the same kernel
Allow memory hotplug and hibernation in the same kernel
Memory hotplug and hibernation were exclusive in Kconfig. This is
obviously a problem for distribution kernels who want to support both in
the same image.
After some discussions with Rafael and others the only problem is with
parallel memory hotadd or removal while a hibernation operation is in
process. It was also working for s390 before.
This patch removes the Kconfig level exclusion, and simply makes the
memory add / remove functions grab the pm_mutex to exclude against
hibernation.
Fixes a regression - old kernels didn't exclude memory hotadd and
hibernation.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Tue, 17 Nov 2009 22:06:20 +0000 (14:06 -0800)]
workqueue: fix race condition in schedule_on_each_cpu()
Commit
65a64464349883891e21e74af16c05d6e1eeb4e9 ("HWPOISON: Allow
schedule_on_each_cpu() from keventd") which allows schedule_on_each_cpu()
to be called from keventd added a race condition. schedule_on_each_cpu()
may race with cpu hotplug and end up executing the function twice on a
cpu.
Fix it by moving direct execution into the section protected with
get/put_online_cpus(). While at it, update code such that direct
execution is done after works have been scheduled for all other cpus and
drop unnecessary cpu != orig test from flush loop.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hidetoshi Seto [Tue, 17 Nov 2009 22:06:18 +0000 (14:06 -0800)]
mm/memory_hotplug: fix section mismatch
With CONFIG_MEMORY_HOTPLUG I got following warning:
WARNING: vmlinux.o(.text+0x1276b0): Section mismatch in reference from
the function hotadd_new_pgdat() to the function
.meminit.text:free_area_init_node()
The function hotadd_new_pgdat() references
the function __meminit free_area_init_node().
This is often because hotadd_new_pgdat lacks a __meminit
annotation or the annotation of free_area_init_node is wrong.
Use __ref to fix this.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Tue, 17 Nov 2009 22:06:15 +0000 (14:06 -0800)]
MAINTAINERS: KMEMCHECK: add file patterns, use M: for Pekka's name and address
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Vegard Nossum <vegardno@ifi.uio.no>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 17 Nov 2009 22:06:15 +0000 (14:06 -0800)]
drivers/video/da8xx-fb.c: fix error return
The return should be negative on errors
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 17 Nov 2009 22:06:14 +0000 (14:06 -0800)]
spi: error status should be negative
Return a negative error value instead of a positive
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: dmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Zhang Le [Wed, 4 Nov 2009 15:22:59 +0000 (23:22 +0800)]
USB: option.c: add support for D-Link DWM-162-U5
Add D-Link DWM-162-U5 device id 1e0e:ce16 into option driver. The device
has 4 interfaces, of which 1 is handled by storage and the other 3 by
option driver.
The device appears first as CD-only 05c6:2100 device and must be
switched to 1e0e:ce16 mode either by using "eject CD" or usb_modeswitch.
The MessageContent for usb_modeswitch.conf is:
"
55534243e0c26a85000000000000061b000000020000000000000000000000"
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 4 Nov 2009 16:35:53 +0000 (11:35 -0500)]
USB: usbmon: fix bug in mon_buff_area_shrink
This patch (as1299b) fixes a bug in an error-handling path of usbmon's
binary interface. The storage area for URB data is divided into
fixed-size blocks. If an URB's data can't be copied, the area
reserved for it should be decreased to the size of the truncated
information (rounded up to a block boundary). Rounding up the amount
to be removed and subtracting it from the reserved size is definitely
the wrong thing to do.
Also, when the data for an isochronous URB can't be copied, we can
still copy the isoc packet descriptors. In fact the current code does
copy the descriptors, but then sets the capture length to 0 so they
remain inaccessible. The capture length should be reduced to the
length of the descriptors, not set to 0.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 4 Nov 2009 19:22:19 +0000 (11:22 -0800)]
USB: xhci: Fix scratchpad deallocation.
The scratchpad_free() function uses xhci->page_size to free some memory
with pci_free_consistent(). However, the page_size is set to zero before
the call, causing kernel oopses on driver unload. Call scratchpad_free()
before setting xhci->page_size to zero.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: John Youn <John.Youn@synopsys.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 4 Nov 2009 06:02:24 +0000 (22:02 -0800)]
USB: xhci: Fix TRB physical to virtual address translation.
The trb_in_td() function in the xHCI driver is supposed to translate a
physical transfer buffer request (TRB) into a virtual pointer to the ring
segment that TRB is in.
Unfortunately, a mistake in this function may cause endless loops as the
driver searches through the linked list of ring segments over and over
again. Fix a couple bugs that may lead to loops or bad output:
1. Bail out if we get a NULL pointer when translating the segment's
private structure and the starting DMA address of the segment chunk. If
this happens, we've been handed a starting TRB pointer from a different
ring.
2. Make sure the function works when there's multiple segments in the
ring. In the while loop to search through the ring segments, use the
current segment variable (cur_seg), rather than the starting segment
variable (start_seg) that is passed in.
3. Stop searching the ring if we've run through all the segments in the
ring.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 4 Nov 2009 06:02:22 +0000 (22:02 -0800)]
USB: xhci: Fix bug memory free after failed initialization.
If the xHCI driver fails during the memory initialization, xhci->ir_set
may not be a valid pointer. Check that it points to valid DMA'able memory
before writing to that address during the memory freeing process.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Francesco Lavra [Tue, 3 Nov 2009 10:53:07 +0000 (10:53 +0000)]
USB: cdc_acm: Fix memory leak after hangup
Am Donnerstag, 10. September 2009 15:43:53 schrieb Dietmar Hilbrich:
> Hello,
>
> i have the following problem with the cdc-acm - driver:
>
> I'm using the driver with an "Ericsson F3507G" on a Thinkpad T400.
>
> If a disable the device (with the RFKill-Switch) while it is used by a
> programm like ppp, the driver doesn't seem to correctly clean up the tty,
> even after the program has been closed)
>
> The tty is still active (e.g. there still exists an entry in
> /sys/dev/char/166:0 if ttyACM0 was used) and if a reacticate the device,
> this device entry will be skipped and the Device-Nodes ttyACM1, ttyACM2
> and ttyACM3 will be used.
>
> This problem was introduced with the commit
>
10077d4a6674f535abdbe25cdecb1202af7948f1 (before 2.6.31-rc1) and still
> exists in 2.6.31.
>
> I was able the fix this problem with the following patch:
>
> diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
> index
2bfc41e..
0970d2f 100644
> --- a/drivers/usb/class/cdc-acm.c
> +++ b/drivers/usb/class/cdc-acm.c
> @@ -676,6 +676,7 @@ static void acm_tty_hangup(struct tty_struct *tty)
> struct acm *acm = tty->driver_data;
> tty_port_hangup(&acm->port);
> acm_port_down(acm, 0);
> + acm_tty_unregister(acm);
> }
I have the same problem with cdc-acm (I'm using a Samsung SGH-U900): when I
unplug it from the USB port during a PPP connection, the ppp daemon gets the
hangup correctly (and closes the device), but the struct acm corresponding to
the device disconnected is not freed. Hence reconnecting the device results in
creation of /dev/ttyACM(x+1). The same happens when the system is hibernated
during a PPP connection.
This memory leak is due to the fact that when the tty is hung up,
tty_port_close_start() returns always zero, and acm_tty_close() never reaches
the point where acm_tty_unregister() is called.
Here is a fix for this.
Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Henry Gebhardt [Wed, 4 Nov 2009 10:19:28 +0000 (11:19 +0100)]
USB: cdc_acm: Fix race condition when opening tty
If acm_rx_tasklet() gets called before tty_port_block_til_ready()
returns, then bulk IN urbs may not be sent. This fixes it.
Signed-off-by: Henry Gebhardt <gebhardt@astro.uni-tuebingen.de>
Acked-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Libin Yang [Wed, 4 Nov 2009 06:55:18 +0000 (14:55 +0800)]
USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer
The following patch in the driver is required to avoid USB 1.1 device
failures that may occur due to requests from USB OHCI controllers may
be overwritten if the latency for any pending request by the USB
controller is very long (in the range of milliseconds).
Signed-off-by: Libin Yang <libin.yang@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Wed, 28 Oct 2009 20:12:33 +0000 (21:12 +0100)]
tty: cp210x: Fix carrier handling
Original discussion:
http://thread.gmane.org/gmane.linux.usb.general/23217/focus=23248
or
http://marc.info/?l=linux-usb&m=
125553790714133&w=2
9a68e39d4a701fb3be03cae9b462408664ebd205 broke carrier handling so that a
cp210x setup which needed the carrier lines set up (non CLOCAL) which did
not make a call which set the termios bits left the lines down even if
CLOCAL was not asserted.
Fix this not by reverting but by adding the proper dtr_rts and
carrier_raised methods. This both sets the modem lines properly and also
implements the correct blocking semantics for the port as required by
POSIX.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Reported-by: Karl Hiramoto <karl@hiramoto.org>
Tested-by: Karl Hiramoto <karl@hiramoto.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Wed, 28 Oct 2009 20:12:32 +0000 (21:12 +0100)]
tty_port: If we are opened non blocking we still need to raise the carrier
Original discussion:
http://thread.gmane.org/gmane.linux.usb.general/23217/focus=23248
or
http://marc.info/?l=linux-usb&m=
125553790714133&w=2
The tty_port code inherited a bug common to various drivers it was based
upon. If the tty is opened O_NONBLOCK we do not wait for the carrier to be
raised but we must still raise our modem lines if appropriate.
(There is a second question here about whether we should do so if CLOCAL is
set but that can wait)
Signed-off-by: Alan Cox <alan@linux.intel.com>
Reported-by: Karl Hiramoto <karl@hiramoto.org>
Tested-by: Karl Hiramoto <karl@hiramoto.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tero Kristo [Mon, 16 Nov 2009 13:36:54 +0000 (13:36 +0000)]
omap3: clock: Fixed dpll3_m2x2 rate calculation
Current calculation does not take into account any changes to M2 divisor, and
thus when we change VDD2 OPP, dpll3_m2x2 rate does not change. Fixed by
re-routing dpll3_m2x2 parent to dpll3_m2.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Rajendra Nayak [Mon, 16 Nov 2009 13:36:53 +0000 (13:36 +0000)]
omap3: clock: Fix the DPLL freqsel computations
Fix the freqsel value computation. Use n instead of (n+1)
The formula in the TRM uses a zero-based N, hence the (n+1); however
at this point in the clock34xx.c code, N is one-based.
Hayati Bayrakdar <h-bayrakdar@ti.com> and Nishanth Menon <nm@ti.com> helped
track down this bug.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
[paul@pwsan.com: modified commit message]
Cc: Hayati Bayrakdar <h-bayrakdar@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Linus Torvalds [Tue, 17 Nov 2009 19:01:54 +0000 (11:01 -0800)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] bfa: declare MODULE_FIRMWARE
[SCSI] gdth: Prevent negative offsets in ioctl CVE-2009-3080
[SCSI] libsas: do not set res = 0 in sas_ex_discover_dev()
[SCSI] Fix incorrect reporting of host protection capabilities
[SCSI] pmcraid: Fix ppc64 driver build for using cpu_to_le32 on U8 data type
[SCSI] ipr: add workaround for MSI interrupts on P7
[SCSI] scsi_transport_fc: Fix WARN message for FC passthru failure paths
[SCSI] bfa: fix test in bfad_os_fc_host_init()
Linus Torvalds [Tue, 17 Nov 2009 17:42:35 +0000 (09:42 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: copy li_lsn before dropping AIL lock
XFS bug in log recover with quota (bugzilla id 855)
Linus Torvalds [Tue, 17 Nov 2009 17:20:50 +0000 (09:20 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: lifebook - fix settings for CF-72
Input: psmouse - fix breakage introduced by
b7802c5c1ea
Linus Torvalds [Tue, 17 Nov 2009 17:20:38 +0000 (09:20 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: clear server inode number flag while autodisabling
Linus Torvalds [Tue, 17 Nov 2009 17:19:54 +0000 (09:19 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] pxa: ensure mfp is in correct range in mfp_{read,write}
[ARM] pxa/hx4700: fix hx4700 touchscreen pressure values
ARM: 5787/1: U300 COH 901 331 fixes
ARM: Fix warning in sa1100-flash.c
[ARM] Kirkwood: disable propagation of mbus error to the CPU local bus
[ARM] pxa: fix incorrect mfp_to_gpio() conversion
[ARM] pxa/colibri: fix AC97 ifdefs and add missing include
[ARM] pxa: fix missing underscores in mfp-pxa910.h
[ARM] pxa: fix interrupts number calculation when CONFIG_PXA_HAVE_ISA_IRQS=y
Linus Torvalds [Tue, 17 Nov 2009 17:19:27 +0000 (09:19 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
dereferencing freed memory regulator_fixed_voltage_remove()
regulator: Fix check of unsigned return value and transmit errors in wm831x_gp_ldo_get_mode()
regulator: Handle missing constraints in _regulator_disable()
Linus Torvalds [Tue, 17 Nov 2009 17:19:13 +0000 (09:19 -0800)]
Merge branch 'for-linus' of git://github.com/at91linux/linux-2.6-at91
* 'for-linus' of git://github.com/at91linux/linux-2.6-at91:
at91: at91sam9g20ek modify dual slot evaluation kit
Linus Torvalds [Tue, 17 Nov 2009 17:17:40 +0000 (09:17 -0800)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (adt7475) Fix sysfs file names
hwmon: (adt7475) Cache limits for 60 seconds
hwmon: (adt7475) Fix temperature fault flags
hwmon: (s3c-hwmon) Ignore invalid divider settings