Ivo van Doorn [Wed, 25 Jun 2008 19:27:00 +0000 (21:27 +0200)]
rt2x00: Fix lock dependency errror
This fixes a circular locking dependency in the workqueue handling.
The interface work task uses the mac80211 function
ieee80211_iterate_active_interfaces() which grabs the RTNL lock.
However when the interface is brough down, this happens under the RTNL
lock as well, this causes problems because mac80211 will flush the workqueue
during the ifdown event. This causes mac80211 to wait until the driver has
completed all work which can't finish because it is waiting on the RTNL lock.
This is fixed by moving rt2x00 workqueue tasks on a different workqueue,
this workqueue can be flushed when the ieee80211_hw structure is removed
by the driver (when the driver is unloaded) which does not happen under the
RTNL lock.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
David S. Miller [Fri, 27 Jun 2008 11:26:58 +0000 (04:26 -0700)]
Merge branch 'master' of /linux/kernel/git/linville/wireless-2.6
Ben Hutchings [Tue, 6 May 2008 18:41:48 +0000 (19:41 +0100)]
Hold RTNL while calling dev_close()
dev_close() must be called holding the RTNL. Compile-tested only.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Ben Hutchings [Tue, 6 May 2008 18:36:26 +0000 (19:36 +0100)]
qla3xxx: Hold RTNL while calling dev_close()
dev_close() must be called holding the RTNL. Compile-tested only.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Andi Kleen [Wed, 18 Jun 2008 11:58:36 +0000 (13:58 +0200)]
[netdrvr] Fix IOMMU overflow checking in s2io.c
s2io has IOMMU overflow checking, but unfortunately it is wrong.
It didn't use the standard macros, which meant that it only worked
on POWER and SPARC because only those define DMA_ERROR_CODE. Convert it to
use the standard macros instead.
I also commented two more bugs in the IOMMU handling. It assumes
that 0 DMA addresses cannot happen, but that's not true in all IOMMU setups.
The information if a buffer has been already mapped needs to be stored
elsewhere.
Didn't fix those because it needs careful checking of the buffer handling
by the maintainers.
Cc: ram.vepa@neterion.com
Cc: santosh.rastapur@neterion.com
Cc: sivakumar.subramani@neterion.com
Cc: sreenivasa.honnur@neterion.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Andy Gospodarek [Thu, 19 Jun 2008 21:19:02 +0000 (17:19 -0400)]
e1000: only enable TSO6 via ethtool when using correct hardware
When enabling TSO via ethool on e1000, it is possible to set
NETIF_F_TSO6 on hardware that does not support it. Setting TSO via
ethtool now matches the settings used when the hardware is probed.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Kevin Hao [Sat, 21 Jun 2008 10:20:35 +0000 (18:20 +0800)]
e100: Do pci_dma_sync after skb_alloc for proper operation on ixp4xx
The E100 device can't work on current kernel (2.6.26-rc6) and will cause
kernel corruption on intel ixdp4xx.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Al Viro [Mon, 23 Jun 2008 01:04:50 +0000 (02:04 +0100)]
[netdrvr] netxen: fix netxen_pci_tbl[] breakage
PCI_DEVICE_CLASS sets .device and .vendor to PCI_ANY_DEV,
which overrides the effect of preceding PCI_DEVICE() and makes
all elements of netxen_pci_tbl[] identical. Introduced in the
commit
dcd56fdbaeae1008044687b973c4a3e852e8a726.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Ingo Molnar [Mon, 23 Jun 2008 08:41:23 +0000 (10:41 +0200)]
[netdrvr] 3c59x: remove irqs_disabled warning from local_bh_enable
Original Author: Michael Buesch <mb@bu3sch.de>
net, vortex: fix lockup
Ingo Molnar reported:
-tip testing found that Johannes Berg's "softirq: remove irqs_disabled
warning from local_bh_enable" enhancement to lockdep triggers a new
warning on an old testbox that uses 3c59x vortex and netlogging:
----->
calling vortex_init+0x0/0xb0
PCI: Found IRQ 10 for device 0000:00:0b.0
PCI: Sharing IRQ 10 with 0000:00:0a.0
PCI: Sharing IRQ 10 with 0000:00:0b.1
3c59x: Donald Becker and others.
0000:00:0b.0: 3Com PCI 3c556 Laptop Tornado at
e0800400.
PCI: Enabling bus mastering for device 0000:00:0b.0
initcall vortex_init+0x0/0xb0 returned 0 after 47 msecs
...
calling init_netconsole+0x0/0x1b0
netconsole: local port 4444
netconsole: local IP 10.0.1.9
netconsole: interface eth0
netconsole: remote port 4444
netconsole: remote IP 10.0.1.16
netconsole: remote ethernet address 00:19:xx:xx:xx:xx
netconsole: device eth0 not up yet, forcing it
eth0: setting half-duplex.
eth0: setting full-duplex.
------------[ cut here ]------------
WARNING: at kernel/softirq.c:137 local_bh_enable_ip+0xd1/0xe0()
Pid: 1, comm: swapper Not tainted 2.6.26-rc6-tip #2091
[<
c0125ecf>] warn_on_slowpath+0x4f/0x70
[<
c0126834>] ? release_console_sem+0x1b4/0x1d0
[<
c0126d00>] ? vprintk+0x2a0/0x450
[<
c012fde5>] ? __mod_timer+0xa5/0xc0
[<
c046f7fd>] ? mdio_sync+0x3d/0x50
[<
c0160ef6>] ? marker_probe_cb+0x46/0xa0
[<
c0126ed7>] ? printk+0x27/0x50
[<
c046f4c3>] ? vortex_set_duplex+0x43/0xc0
[<
c046f521>] ? vortex_set_duplex+0xa1/0xc0
[<
c0471b92>] ? vortex_timer+0xe2/0x3e0
[<
c012b361>] local_bh_enable_ip+0xd1/0xe0
[<
c08d9f9f>] _spin_unlock_bh+0x2f/0x40
[<
c0471b92>] vortex_timer+0xe2/0x3e0
[<
c014743b>] ? trace_hardirqs_on+0xb/0x10
[<
c0147358>] ? trace_hardirqs_on_caller+0x88/0x160
[<
c012f8b2>] run_timer_softirq+0x162/0x1c0
[<
c0471ab0>] ? vortex_timer+0x0/0x3e0
[<
c012b361>] local_bh_enable_ip+0xd1/0xe0
[<
c08d9f9f>] _spin_unlock_bh+0x2f/0x40
[<
c0471b92>] vortex_timer+0xe2/0x3e0
[<
c014743b>] ? trace_hardirqs_on+0xb/0x10
[<
c0147358>] ? trace_hardirqs_on_caller+0x88/0x160
[<
c012f8b2>] run_timer_softirq+0x162/0x1c0
[<
c0471ab0>] ? vortex_timer+0x0/0x3e0
[<
c0471ab0>] ? vortex_timer+0x0/0x3e0
[<
c012b60a>] __do_softirq+0x9a/0x160
[<
c012b570>] ? __do_softirq+0x0/0x160
[<
c0106775>] call_on_stack+0x15/0x30
[<
c012b4f5>] ? irq_exit+0x55/0x60
[<
c0106e85>] ? do_IRQ+0x85/0xd0
[<
c0147391>] ? trace_hardirqs_on_caller+0xc1/0x160
[<
c0104888>] ? common_interrupt+0x28/0x30
[<
c08d8ac8>] ? mutex_unlock+0x8/0x10
[<
c08d8180>] ? _cond_resched+0x10/0x30
[<
c07a3be7>] ? netpoll_setup+0x117/0x390
[<
c0cbfcfe>] ? init_netconsole+0x14e/0x1b0
[<
c013d539>] ? ktime_get+0x19/0x40
[<
c0c9bab2>] ? kernel_init+0x1b2/0x2c0
[<
c0cbfbb0>] ? init_netconsole+0x0/0x1b0
[<
c0396aa4>] ? trace_hardirqs_on_thunk+0xc/0x10
[<
c0103f12>] ? restore_nocheck_notrace+0x0/0xe
[<
c0c9b900>] ? kernel_init+0x0/0x2c0
[<
c0c9b900>] ? kernel_init+0x0/0x2c0
[<
c0104aa7>] ? kernel_thread_helper+0x7/0x10
=======================
---[ end trace
37f9c502aff112e0 ]---
console [netcon0] enabled
netconsole: network logging started
initcall init_netconsole+0x0/0x1b0 returned 0 after 2914 msecs
looking at the driver I think the bug is real and the fix actually
is trivial.
vp->lock is also taken in hardware IRQ context, so we _have_ to always
use irqsafe locking. As we run in a timer with IRQs disabled,
we can simply use spin_lock.
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Pekka Enberg [Mon, 23 Jun 2008 11:34:50 +0000 (14:34 +0300)]
ipg: use NULL, not zero, for pointers
Fixes a sparse warning in a code block that's hidden under JUMBO_FRAME #ifdef.
Tested-by: Andrew Savchenko <Bircoph@list.ru>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Pekka Enberg [Mon, 23 Jun 2008 11:34:29 +0000 (14:34 +0300)]
ipg: fix jumbo frame compilation
Make jumbo frame support compile again. It was broken by the cleanup series
before the merge because the code is hidden under JUMBO_FRAME #ifdef.
Tested-by: Andrew Savchenko <Bircoph@list.ru>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Julia Lawall [Mon, 23 Jun 2008 21:12:31 +0000 (23:12 +0200)]
drivers/net/r6040.c: Eliminate double sizeof
Taking sizeof the result of sizeof is quite strange and does not seem to be
what is wanted here.
This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression E;
@@
- sizeof (
sizeof (E)
- )
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Komuro [Sat, 7 Jun 2008 12:37:56 +0000 (21:37 +0900)]
pcnet_cs, axnet_cs: clear bogus interrupt before request_irq
Signed-off-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Jeff Kirsher [Wed, 25 Jun 2008 00:01:29 +0000 (17:01 -0700)]
e1000e: fix EEH recovery during reset on PPC
EEH is not recovering in a reasonable amount of time on PPC during
e1000e_down().
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Jeff Kirsher [Wed, 25 Jun 2008 00:01:15 +0000 (17:01 -0700)]
igb: fix EEH recovery during reset on PPC
EEH is not recovering in a reasonable amount of time on PPC during
igb_down().
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Paul Larson [Wed, 25 Jun 2008 00:00:56 +0000 (17:00 -0700)]
ixgbe: fix EEH recovery during reset on PPC
EEh is not recovering in a resonable amount of time on PPC during
ixgbe_down().
Signed-off-by: Paul Larson <pl@us.ibm.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Atsushi Nemoto [Thu, 26 Jun 2008 08:14:15 +0000 (17:14 +0900)]
tc35815: Fix receiver hangup on Rx FIFO overflow
On Rx FIFO overflow error, the controller consume a buffer descriptor
but currently the driver does not give it back to the controller.
This results unrecoverable 'Buffer List Exhausted' condition. This
patch fix this problem by moving a "fbl_count--" line to proper place.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Atsushi Nemoto [Wed, 25 Jun 2008 02:41:01 +0000 (11:41 +0900)]
tc35815: Mark carrier-off before starting PHY
Call netif_carrier_off() before starting PHY device. This is a
behavior before converting to generic PHY layer.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Michal Schmidt [Thu, 26 Jun 2008 14:06:19 +0000 (16:06 +0200)]
s2io: fix documentation about intr_type
The documentation for intr_type module parameter of the s2io driver is
not consistent with the code. The comments in drivers/net/s2io.c are
OK, but Documentation/networking/s2io.txt is wrong.
Pointed out by Andrew Hecox.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Ron Rindjunsky [Wed, 25 Jun 2008 08:46:31 +0000 (16:46 +0800)]
iwlwifi: improve scanning band selection management
This patch modifies the band selection management when scanning, so
bands are now scanned according to HW band support.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ivo van Doorn [Fri, 20 Jun 2008 20:11:00 +0000 (22:11 +0200)]
rt2x00: Fix unbalanced mutex locking
The usb_cache_mutex was not correctly released
under all circumstances. Both rt73usb as rt2500usb
didn't release the mutex under certain conditions
when the register access failed. Obviously such
failure would lead to deadlocks.
In addition under similar circumstances when the
bbp register couldn't be read the value must be
set to 0xff to indicate that the value is wrong.
This too didn't happen under all circumstances.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Fri, 20 Jun 2008 09:40:46 +0000 (11:40 +0200)]
b43legacy: Fix possible NULL pointer dereference in DMA code
This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Sun, 15 Jun 2008 14:01:24 +0000 (16:01 +0200)]
b43: Fix possible MMIO access while device is down
This fixes a possible MMIO access while the device is still down
from a suspend cycle. MMIO accesses with the device powered down
may cause crashes on certain devices.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Sun, 15 Jun 2008 13:27:49 +0000 (15:27 +0200)]
b43legacy: Do not return TX_BUSY from op_tx
Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Sun, 15 Jun 2008 13:17:29 +0000 (15:17 +0200)]
b43: Do not return TX_BUSY from op_tx
Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.
This will fix the resume hang.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tony Vroon [Wed, 11 Jun 2008 20:23:56 +0000 (16:23 -0400)]
mac80211: implement EU regulatory domain
Implement missing EU regulatory domain for mac80211. Based on the
information in IEEE 802.11-2007 (specifically pages 1142, 1143 & 1148)
and ETSI 301 893 (V1.4.1).
With thanks to Johannes Berg.
Signed-off-by: Tony Vroon <tony@linx.net>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Patrick McHardy [Tue, 24 Jun 2008 20:30:45 +0000 (13:30 -0700)]
netfilter: ip6table_mangle: don't reroute in LOCAL_IN
Rerouting should only happen in LOCAL_OUT, in INPUT its useless
since the packet has already chosen its final destination.
Noticed by Alexey Dobriyan <adobriyan@gmail.com>.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric W. Biederman [Sat, 21 Jun 2008 05:16:51 +0000 (22:16 -0700)]
netns: Don't receive new packets in a dead network namespace.
Alexey Dobriyan <adobriyan@gmail.com> writes:
> Subject: ICMP sockets destruction vs ICMP packets oops
> After icmp_sk_exit() nuked ICMP sockets, we get an interrupt.
> icmp_reply() wants ICMP socket.
>
> Steps to reproduce:
>
> launch shell in new netns
> move real NIC to netns
> setup routing
> ping -i 0
> exit from shell
>
> BUG: unable to handle kernel NULL pointer dereference at
0000000000000000
> IP: [<
ffffffff803fce17>] icmp_sk+0x17/0x30
> PGD
17f3cd067 PUD
17f3ce067 PMD 0
> Oops: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC
> CPU 0
> Modules linked in: usblp usbcore
> Pid: 0, comm: swapper Not tainted 2.6.26-rc6-netns-ct #4
> RIP: 0010:[<
ffffffff803fce17>] [<
ffffffff803fce17>] icmp_sk+0x17/0x30
> RSP: 0018:
ffffffff8057fc30 EFLAGS:
00010286
> RAX:
0000000000000000 RBX:
0000000000000000 RCX:
ffff81017c7db900
> RDX:
0000000000000034 RSI:
ffff81017c7db900 RDI:
ffff81017dc41800
> RBP:
ffffffff8057fc40 R08:
0000000000000001 R09:
000000000000a815
> R10:
0000000000000000 R11:
0000000000000001 R12:
ffffffff8057fd28
> R13:
ffffffff8057fd00 R14:
ffff81017c7db938 R15:
ffff81017dc41800
> FS:
0000000000000000(0000) GS:
ffffffff80525000(0000) knlGS:
0000000000000000
> CS: 0010 DS: 0018 ES: 0018 CR0:
000000008005003b
> CR2:
0000000000000000 CR3:
000000017fcda000 CR4:
00000000000006e0
> DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
> DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
> Process swapper (pid: 0, threadinfo
ffffffff8053a000, task
ffffffff804fa4a0)
> Stack:
0000000000000000 ffff81017c7db900 ffffffff8057fcf0 ffffffff803fcfe4
>
ffffffff804faa38 0000000000000246 0000000000005a40 0000000000000246
>
000000000001ffff ffff81017dd68dc0 0000000000005a40 0000000055342436
> Call Trace:
> <IRQ> [<
ffffffff803fcfe4>] icmp_reply+0x44/0x1e0
> [<
ffffffff803d3a0a>] ? ip_route_input+0x23a/0x1360
> [<
ffffffff803fd645>] icmp_echo+0x65/0x70
> [<
ffffffff803fd300>] icmp_rcv+0x180/0x1b0
> [<
ffffffff803d6d84>] ip_local_deliver+0xf4/0x1f0
> [<
ffffffff803d71bb>] ip_rcv+0x33b/0x650
> [<
ffffffff803bb16a>] netif_receive_skb+0x27a/0x340
> [<
ffffffff803be57d>] process_backlog+0x9d/0x100
> [<
ffffffff803bdd4d>] net_rx_action+0x18d/0x250
> [<
ffffffff80237be5>] __do_softirq+0x75/0x100
> [<
ffffffff8020c97c>] call_softirq+0x1c/0x30
> [<
ffffffff8020f085>] do_softirq+0x65/0xa0
> [<
ffffffff80237af7>] irq_exit+0x97/0xa0
> [<
ffffffff8020f198>] do_IRQ+0xa8/0x130
> [<
ffffffff80212ee0>] ? mwait_idle+0x0/0x60
> [<
ffffffff8020bc46>] ret_from_intr+0x0/0xf
> <EOI> [<
ffffffff80212f2c>] ? mwait_idle+0x4c/0x60
> [<
ffffffff80212f23>] ? mwait_idle+0x43/0x60
> [<
ffffffff8020a217>] ? cpu_idle+0x57/0xa0
> [<
ffffffff8040f380>] ? rest_init+0x70/0x80
> Code: 10 5b 41 5c 41 5d 41 5e c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53
> 48 83 ec 08 48 8b 9f 78 01 00 00 e8 2b c7 f1 ff 89 c0 <48> 8b 04 c3 48 83 c4 08
> 5b c9 c3 66 66 66 66 66 2e 0f 1f 84 00
> RIP [<
ffffffff803fce17>] icmp_sk+0x17/0x30
> RSP <
ffffffff8057fc30>
> CR2:
0000000000000000
> ---[ end trace
ea161157b76b33e8 ]---
> Kernel panic - not syncing: Aiee, killing interrupt handler!
Receiving packets while we are cleaning up a network namespace is a
racy proposition. It is possible when the packet arrives that we have
removed some but not all of the state we need to fully process it. We
have the choice of either playing wack-a-mole with the cleanup routines
or simply dropping packets when we don't have a network namespace to
handle them.
Since the check looks inexpensive in netif_receive_skb let's just
drop the incoming packets.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 21 Jun 2008 05:04:34 +0000 (22:04 -0700)]
sctp: Make sure N * sizeof(union sctp_addr) does not overflow.
As noticed by Gabriel Campana, the kmalloc() length arg
passed in by sctp_getsockopt_local_addrs_old() can overflow
if ->addr_num is large enough.
Therefore, enforce an appropriate limit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Hemminger [Sat, 21 Jun 2008 04:58:02 +0000 (21:58 -0700)]
pppoe: warning fix
Fix warning:
drivers/net/pppoe.c: In function 'pppoe_recvmsg':
drivers/net/pppoe.c:945: warning: comparison of distinct pointer types lacks a cast
because skb->len is unsigned int and total_len is size_t
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
YOSHIFUJI Hideaki [Thu, 19 Jun 2008 23:33:57 +0000 (16:33 -0700)]
ipv6: Drop packets for loopback address from outside of the box.
[ Based upon original report and patch by Karsten Keil. Karsten
has verified that this fixes the TAHI test case "ICMPv6 test
v6LC.5.1.2 Part F". -DaveM ]
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shan Wei [Thu, 19 Jun 2008 23:29:39 +0000 (16:29 -0700)]
ipv6: Remove options header when setsockopt's optlen is 0
Remove the sticky Hop-by-Hop options header by calling setsockopt()
for IPV6_HOPOPTS with a zero option length, per RFC3542.
Routing header and Destination options header does the same as
Hop-by-Hop options header.
Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johannes Berg [Wed, 18 Jun 2008 22:39:48 +0000 (15:39 -0700)]
mac80211: detect driver tx bugs
When a driver rejects a frame in it's ->tx() callback, it must also
stop queues, otherwise mac80211 can go into a loop here. Detect this
situation and abort the loop after five retries, warning about the
driver bug.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 18 Jun 2008 09:07:07 +0000 (02:07 -0700)]
netlink: genl: fix circular locking
genetlink has a circular locking dependency when dumping the registered
families:
- dump start:
genl_rcv() : take genl_mutex
genl_rcv_msg() : call netlink_dump_start() while holding genl_mutex
netlink_dump_start(),
netlink_dump() : take nlk->cb_mutex
ctrl_dumpfamily() : try to detect this case and not take genl_mutex a
second time
- dump continuance:
netlink_rcv() : call netlink_dump
netlink_dump : take nlk->cb_mutex
ctrl_dumpfamily() : take genl_mutex
Register genl_lock as callback mutex with netlink to fix this. This slightly
widens an already existing module unload race, the genl ops used during the
dump might go away when the module is unloaded. Thomas Graf is working on a
seperate fix for this.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 18 Jun 2008 08:19:51 +0000 (01:19 -0700)]
Revert "mac80211: Use skb_header_cloned() on TX path."
This reverts commit
608961a5eca8d3c6bd07172febc27b5559408c5d.
The problem is that the mac80211 stack not only needs to be able to
muck with the link-level headers, it also might need to mangle all of
the packet data if doing sw wireless encryption.
This fixes kernel bugzilla #10903. Thanks to Didier Raboud (for the
bugzilla report), Andrew Prince (for bisecting), Johannes Berg (for
bringing this bisection analysis to my attention), and Ilpo (for
trying to analyze this purely from the TCP side).
In 2.6.27 we can take another stab at this, by using something like
skb_cow_data() when the TX path of mac80211 ends up with a non-NULL
tx->key. The ESP protocol code in the IPSEC stack can be used as a
model for implementation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Rainer Weikusat [Wed, 18 Jun 2008 05:28:05 +0000 (22:28 -0700)]
af_unix: fix 'poll for write'/ connected DGRAM sockets
The unix_dgram_sendmsg routine implements a (somewhat crude)
form of receiver-imposed flow control by comparing the length of the
receive queue of the 'peer socket' with the max_ack_backlog value
stored in the corresponding sock structure, either blocking
the thread which caused the send-routine to be called or returning
EAGAIN. This routine is used by both SOCK_DGRAM and SOCK_SEQPACKET
sockets. The poll-implementation for these socket types is
datagram_poll from core/datagram.c. A socket is deemed to be writeable
by this routine when the memory presently consumed by datagrams
owned by it is less than the configured socket send buffer size. This
is always wrong for connected PF_UNIX non-stream sockets when the
abovementioned receive queue is currently considered to be full.
'poll' will then return, indicating that the socket is writeable, but
a subsequent write result in EAGAIN, effectively causing an
(usual) application to 'poll for writeability by repeated send request
with O_NONBLOCK set' until it has consumed its time quantum.
The change below uses a suitably modified variant of the datagram_poll
routines for both type of PF_UNIX sockets, which tests if the
recv-queue of the peer a socket is connected to is presently
considered to be 'full' as part of the 'is this socket
writeable'-checking code. The socket being polled is additionally
put onto the peer_wait wait queue associated with its peer, because the
unix_dgram_sendmsg routine does a wake up on this queue after a
datagram was received and the 'other wakeup call' is done implicitly
as part of skb destruction, meaning, a process blocked in poll
because of a full peer receive queue could otherwise sleep forever
if no datagram owned by its socket was already sitting on this queue.
Among this change is a small (inline) helper routine named
'unix_recvq_full', which consolidates the actual testing code (in three
different places) into a single location.
Signed-off-by: Rainer Weikusat <rweikusat@mssgmbh.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 18 Jun 2008 04:32:08 +0000 (21:32 -0700)]
Merge branch 'davem-fixes' of /linux/kernel/git/jgarzik/netdev-2.6
Ang Way Chuang [Wed, 18 Jun 2008 04:10:33 +0000 (21:10 -0700)]
tun: Proper handling of IPv6 header in tun driver when TUN_NO_PI is set
By default, tun.c running in TUN_TUN_DEV mode will set the protocol of
packet to IPv4 if TUN_NO_PI is set. My program failed to work when I
assumed that the driver will check the first nibble of packet,
determine IP version and set the appropriate protocol.
Signed-off-by: Ang Way Chuang <wcang@nav6.org>
Acked-by: Max Krasnyansky <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Radu Cristescu [Thu, 12 Jun 2008 22:04:54 +0000 (17:04 -0500)]
atl1: relax eeprom mac address error check
The atl1 driver tries to determine the MAC address thusly:
- If an EEPROM exists, read the MAC address from EEPROM and
validate it.
- If an EEPROM doesn't exist, try to read a MAC address from
SPI flash.
- If that fails, try to read a MAC address directly from the
MAC Station Address register.
- If that fails, assign a random MAC address provided by the
kernel.
We now have a report of a system fitted with an EEPROM containing all
zeros where we expect the MAC address to be, and we currently handle
this as an error condition. Turns out, on this system the BIOS writes
a valid MAC address to the NIC's MAC Station Address register, but we
never try to read it because we return an error when we find the all-
zeros address in EEPROM.
This patch relaxes the error check and continues looking for a MAC
address even if it finds an illegal one in EEPROM.
Signed-off-by: Radu Cristescu <advantis@gmx.net>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
David Brownell [Fri, 13 Jun 2008 04:38:06 +0000 (21:38 -0700)]
net/enc28j60: low power mode
Keep enc28j60 chips in low-power mode when they're not in use.
At typically 120 mA, these chips run hot even when idle; this
low power mode cuts that power usage by a factor of around 100.
This version provides a generic routine to poll a register until
its masked value equals some value ... e.g. bit set or cleared.
It's basically what the previous wait_phy_ready() did, but this
version is generalized to support the handshaking needed to
enter and exit low power mode.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Claudio Lanconelli <lanconelli.claudio@eptar.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
David Brownell [Fri, 13 Jun 2008 04:36:24 +0000 (21:36 -0700)]
net/enc28j60: section fix
Minor bugfixes to the enc28j60 driver ... wrong section marking,
indentation, and bogus use of spi_bus_type.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Claudio Lanconelli <lanconelli.claudio@eptar.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Stephen Hemminger [Sat, 14 Jun 2008 17:32:15 +0000 (10:32 -0700)]
sky2: 88E8040T pci device id
Missed one pci id for 88E8040T.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Dhananjay Phadke [Mon, 16 Jun 2008 05:59:46 +0000 (22:59 -0700)]
netxen: download firmware in pci probe
Downloading firmware in pci probe allows recovery in case of
firmware failure by reloading the driver.
Also reduced delays in firmware load.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Dhananjay Phadke [Mon, 16 Jun 2008 05:59:45 +0000 (22:59 -0700)]
netxen: cleanup debug messages
o Remove unnecessary debug prints and functions.
o Explicitly specify pci class (0x020000) to avoid enabling
management function.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Dhananjay Phadke [Mon, 16 Jun 2008 05:59:44 +0000 (22:59 -0700)]
netxen: remove global physical_port array
Store physical port number in netxen_adapter structure.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Dhananjay Phadke [Mon, 16 Jun 2008 05:59:43 +0000 (22:59 -0700)]
netxen: fix portnum for hp mezz cards
This fixes a the issue where logical port number is set incorrectly
for HP blade mezz cards.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Josh Boyer [Tue, 17 Jun 2008 23:27:55 +0000 (19:27 -0400)]
ibm_newemac: select CRC32 in Kconfig
The ibm_newemac driver requires ether_crc to be defined. Apparently it is
possible to generate a .config without CONFIG_CRC32 set which causes the
following link errors if IBM_NEW_EMAC is selected:
LD .tmp_vmlinux1
drivers/built-in.o: In function `emac_hash_mc':
core.c:(.text+0x2f524): undefined reference to `crc32_le'
core.c:(.text+0x2f528): undefined reference to `bitrev32'
make: *** [.tmp_vmlinux1] Error 1
This patch has IBM_NEW_EMAC select CRC32 so we don't hit this error.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Steffen Klassert [Tue, 17 Jun 2008 23:37:13 +0000 (16:37 -0700)]
xfrm: fix fragmentation for ipv4 xfrm tunnel
When generating the ip header for the transformed packet we just copy
the frag_off field of the ip header from the original packet to the ip
header of the new generated packet. If we receive a packet as a chain
of fragments, all but the last of the new generated packets have the
IP_MF flag set. We have to mask the frag_off field to only keep the
IP_DF flag from the original packet. This got lost with git commit
36cf9acf93e8561d9faec24849e57688a81eb9c5 ("[IPSEC]: Separate
inner/outer mode processing on output")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Tue, 17 Jun 2008 22:52:32 +0000 (15:52 -0700)]
netfilter: nf_conntrack_h323: fix module unload crash
The H.245 helper is not registered/unregistered, but assigned to
connections manually from the Q.931 helper. This means on unload
existing expectations and connections using the helper are not
cleaned up, leading to the following oops on module unload:
CPU 0 Unable to handle kernel paging request at virtual address
c00a6828, epc ==
802224dc, ra ==
801d4e7c
Oops[#1]:
Cpu 0
$ 0 :
00000000 00000000 00000004 c00a67f0
$ 4 :
802a5ad0 81657e00 00000000 00000000
$ 8 :
00000008 801461c8 00000000 80570050
$12 :
819b0280 819b04b0 00000006 00000000
$16 :
802a5a60 80000000 80b46000 80321010
$20 :
00000000 00000004 802a5ad0 00000001
$24 :
00000000 802257a8
$28 :
802a4000 802a59e8 00000004 801d4e7c
Hi :
0000000b
Lo :
00506320
epc :
802224dc ip_conntrack_help+0x38/0x74 Tainted: P
ra :
801d4e7c nf_iterate+0xbc/0x130
Status:
1000f403 KERNEL EXL IE
Cause :
00800008
BadVA :
c00a6828
PrId :
00019374
Modules linked in: ip_nat_pptp ip_conntrack_pptp ath_pktlog wlan_acl wlan_wep wlan_tkip wlan_ccmp wlan_xauth ath_pci ath_dev ath_dfs ath_rate_atheros wlan ath_hal ip_nat_tftp ip_conntrack_tftp ip_nat_ftp ip_conntrack_ftp pppoe ppp_async ppp_deflate ppp_mppe pppox ppp_generic slhc
Process swapper (pid: 0, threadinfo=
802a4000, task=
802a6000)
Stack :
801e7d98 00000004 802a5a60 80000000 801d4e7c 801d4e7c 802a5ad0 00000004
00000000 00000000 801e7d98 00000000 00000004 802a5ad0 00000000 00000010
801e7d98 80b46000 802a5a60 80320000 80000000 801d4f8c 802a5b00 00000002
80063834 00000000 80b46000 802a5a60 801e7d98 80000000 802ba854 00000000
81a02180 80b7e260 81a021b0 819b0000 819b0000 80570056 00000000 00000001
...
Call Trace:
[<
801e7d98>] ip_finish_output+0x0/0x23c
[<
801d4e7c>] nf_iterate+0xbc/0x130
[<
801d4e7c>] nf_iterate+0xbc/0x130
[<
801e7d98>] ip_finish_output+0x0/0x23c
[<
801e7d98>] ip_finish_output+0x0/0x23c
[<
801d4f8c>] nf_hook_slow+0x9c/0x1a4
One way to fix this would be to split helper cleanup from the unregistration
function and invoke it for the H.245 helper, but since ctnetlink needs to be
able to find the helper for synchonization purposes, a better fix is to
register it normally and make sure its not assigned to connections during
helper lookup. The missing l3num initialization is enough for this, this
patch changes it to use AF_UNSPEC to make it more explicit though.
Reported-by: liannan <liannan@twsz.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Tue, 17 Jun 2008 22:52:07 +0000 (15:52 -0700)]
netfilter: nf_conntrack_h323: fix memory leak in module initialization error path
Properly free h323_buffer when helper registration fails.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Tue, 17 Jun 2008 22:51:47 +0000 (15:51 -0700)]
netfilter: nf_nat: fix RCU races
Fix three ct_extend/NAT extension related races:
- When cleaning up the extension area and removing it from the bysource hash,
the nat->ct pointer must not be set to NULL since it may still be used in
a RCU read side
- When replacing a NAT extension area in the bysource hash, the nat->ct
pointer must be assigned before performing the replacement
- When reallocating extension storage in ct_extend, the old memory must
not be freed immediately since it may still be used by a RCU read side
Possibly fixes https://bugzilla.redhat.com/show_bug.cgi?id=449315
and/or http://bugzilla.kernel.org/show_bug.cgi?id=10875
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chas Williams [Tue, 17 Jun 2008 00:21:27 +0000 (17:21 -0700)]
atm: [he] send idle cells instead of unassigned when in SDH mode
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Robert T. Johnson [Tue, 17 Jun 2008 00:20:52 +0000 (17:20 -0700)]
atm: [he] limit queries to the device's register space
From: "Robert T. Johnson" <rtjohnso@eecs.berkeley.edu>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Eric Kinzie [Tue, 17 Jun 2008 00:18:18 +0000 (17:18 -0700)]
atm: [br2864] fix routed vcmux support
From: Eric Kinzie <ekinzie@cmf.nrl.navy.mil>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chas Williams [Tue, 17 Jun 2008 00:17:31 +0000 (17:17 -0700)]
atm: [he] only support suni driver on multimode interfaces
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jorge Boncompte [DTI2] [Tue, 17 Jun 2008 00:16:35 +0000 (17:16 -0700)]
atm: [iphase] doesn't call phy->start due to a bogus #ifndef
This causes the suni driver to oops if you try to use sonetdiag to get
the statistics. Also add the corresponding phy->stop call to fix another
oops if you try to remove the module.
Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jorge Boncompte [DTI2] [Tue, 17 Jun 2008 00:16:04 +0000 (17:16 -0700)]
atm: [iphase] set drvdata before enabling interrupts
Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jorge Boncompte [DTI2] [Tue, 17 Jun 2008 00:15:33 +0000 (17:15 -0700)]
atm: [br2684] Fix oops due to skb->dev being NULL
It happens that if a packet arrives in a VC between the call to open it on
the hardware and the call to change the backend to br2684, br2684_regvcc
processes the packet and oopses dereferencing skb->dev because it is
NULL before the call to br2684_push().
Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Rami Rosen [Tue, 17 Jun 2008 00:07:16 +0000 (17:07 -0700)]
ipv4: Remove unused definitions in net/ipv4/tcp_ipv4.c.
1) Remove ICMP_MIN_LENGTH, as it is unused.
2) Remove unneeded tcp_v4_send_check() declaration.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 17 Jun 2008 00:03:32 +0000 (17:03 -0700)]
raw: Restore /proc/net/raw correct behavior
I just noticed "cat /proc/net/raw" was buggy, missing '\n' separators.
I believe this was introduced by commit
8cd850efa4948d57a2ed836911cfd1ab299e89c6
([RAW]: Cleanup IPv4 raw_seq_show.)
This trivial patch restores correct behavior, and applies to current
Linus tree (should also be applied to stable tree as well.)
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Tue, 17 Jun 2008 00:02:28 +0000 (17:02 -0700)]
net: Fix test for VLAN TX checksum offload capability
Selected device feature bits can be propagated to VLAN devices, so we
can make use of TX checksum offload and TSO on VLAN-tagged packets.
However, if the physical device does not do VLAN tag insertion or
generic checksum offload then the test for TX checksum offload in
dev_queue_xmit() will see a protocol of htons(ETH_P_8021Q) and yield
false.
This splits the checksum offload test into two functions:
- can_checksum_protocol() tests a given protocol against a feature bitmask
- dev_can_checksum() first tests the skb protocol against the device
features; if that fails and the protocol is htons(ETH_P_8021Q) then
it tests the encapsulated protocol against the effective device
features for VLANs
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Tue, 17 Jun 2008 00:00:29 +0000 (17:00 -0700)]
sctp: Correclty set changeover_active for SFR-CACC
Right now, any time we set a primary transport we set
the changeover_active flag. As a result, we invoke SFR-CACC
even when there has been no changeover events.
Only set changeover_active, when there is a true changeover
event, i.e. we had a primary path and we are changing to
another transport.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Yongjun [Mon, 16 Jun 2008 23:59:55 +0000 (16:59 -0700)]
sctp: Correctly cleanup procfs entries upon failure.
This patch remove the proc fs entry which has been created if fail to
set up proc fs entry for the SCTP protocol.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 16 Jun 2008 23:57:40 +0000 (16:57 -0700)]
tcp: Revert reset of deferred accept changes in 2.6.26
Ingo's system is still seeing strange behavior, and he
reports that is goes away if the rest of the deferred
accept changes are reverted too.
Therefore this reverts
e4c78840284f3f51b1896cf3936d60a6033c4d2c
("[TCP]: TCP_DEFER_ACCEPT updates - dont retxmt synack") and
539fae89bebd16ebeafd57a87169bc56eb530d76 ("[TCP]: TCP_DEFER_ACCEPT
updates - defer timeout conflicts with max_thresh").
Just like the other revert, these ideas can be revisited for
2.6.27
Signed-off-by: David S. Miller <davem@davemloft.net>
YOSHIFUJI Hideaki [Mon, 16 Jun 2008 23:48:20 +0000 (16:48 -0700)]
ipv6 sit: Avoid extra need for compat layer in PRL management.
We've introduced extra need of compat layer for ip_tunnel_prl{}
for PRL (Potential Router List) management. Though compat_ioctl
is still missing in ipv4/ipv6, let's make the interface more
straight-forward and eliminate extra need for nasty compat layer
anyway since the interface is new for 2.6.26.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Mon, 16 Jun 2008 23:39:32 +0000 (16:39 -0700)]
pkt_sched: Change HTB_HYSTERESIS to a runtime parameter htb_hysteresis.
Add a htb_hysteresis parameter to htb_sch.ko and by sysfs magic make
it runtime adjustable via
/sys/module/sch_htb/parameters/htb_hysteresis mode 640.
Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Acked-by: Martin Devera <devik@cdi.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Mon, 16 Jun 2008 23:38:33 +0000 (16:38 -0700)]
pkt_sched: HTB scheduler, change default hysteresis mode to off.
The HTB hysteresis mode reduce the CPU load, but at the
cost of scheduling accuracy.
On ADSL links (512 kbit/s upstream), this inaccuracy introduce
significant jitter, enought to disturbe VoIP. For details see my
masters thesis (http://www.adsl-optimizer.dk/thesis/), chapter 7,
section 7.3.1, pp 69-70.
Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Acked-by: Martin Devera <devik@cdi.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 15 Jun 2008 00:33:38 +0000 (17:33 -0700)]
Merge branch 'master' of /linux/kernel/git/linville/wireless-2.6
Ivo van Doorn [Thu, 12 Jun 2008 18:47:17 +0000 (20:47 +0200)]
rt2x00: Add D-link DWA111 support
Add new rt73usb USB ID for D-Link DWA111
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tomas Winkler [Thu, 12 Jun 2008 17:08:19 +0000 (20:08 +0300)]
mac80211: add missing new line in debug print HT_DEBUG
This patch adds '\n' in debug printk (wme.c HT DEBUG)
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Abhijeet Kolekar [Thu, 12 Jun 2008 01:47:16 +0000 (09:47 +0800)]
mac80211 : fix for iwconfig in ad-hoc mode
The patch checks interface status, if it is in IBSS_JOINED mode
show cell id it is associated with.
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Thu, 12 Jun 2008 13:33:13 +0000 (15:33 +0200)]
ssb: Fix coherent DMA mask for PCI devices
This fixes setting the coherent DMA mask for PCI devices.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Randy Dunlap [Wed, 11 Jun 2008 20:32:22 +0000 (13:32 -0700)]
rt2x00: LEDS build failure
Config symbols that select LEDS_CLASS need to depend on NEW_LEDS so that
undefined symbols are not used in the build.
The alternative is to select NEW_LEDS, which some drivers do.
This patch fixes the led_* symbols build errors.
(.text+0x174cdc): undefined reference to `input_unregister_device'
(.text+0x174d9f): undefined reference to `input_allocate_device'
(.text+0x174e2d): undefined reference to `input_register_device'
(.text+0x174e53): undefined reference to `input_free_device'
rt2x00rfkill.c:(.text+0x176dc4): undefined reference to `input_allocate_polled_device'
rt2x00rfkill.c:(.text+0x176e8b): undefined reference to `input_event'
rt2x00rfkill.c:(.text+0x176e9f): undefined reference to `input_event'
(.text+0x176eca): undefined reference to `input_unregister_polled_device'
(.text+0x176efc): undefined reference to `input_free_polled_device'
(.text+0x176f37): undefined reference to `input_free_polled_device'
(.text+0x176fd8): undefined reference to `input_register_polled_device'
(.text+0x1772c0): undefined reference to `led_classdev_resume'
(.text+0x1772d4): undefined reference to `led_classdev_resume'
(.text+0x1772e8): undefined reference to `led_classdev_resume'
(.text+0x17730a): undefined reference to `led_classdev_suspend'
(.text+0x17731e): undefined reference to `led_classdev_suspend'
(.text+0x17732f): undefined reference to `led_classdev_suspend'
rt2x00leds.c:(.text+0x177348): undefined reference to `led_classdev_unregister'
rt2x00leds.c:(.text+0x1773c0): undefined reference to `led_classdev_register'
rfkill-input.c:(.text+0x209e4c): undefined reference to `input_close_device'
rfkill-input.c:(.text+0x209e53): undefined reference to `input_unregister_handle'
rfkill-input.c:(.text+0x209ea1): undefined reference to `input_register_handle'
rfkill-input.c:(.text+0x209eae): undefined reference to `input_open_device'
rfkill-input.c:(.text+0x209ebb): undefined reference to `input_unregister_handle'
rfkill-input.c:(.init.text+0x17405): undefined reference to `input_register_handler'
rfkill-input.c:(.exit.text+0x194f): undefined reference to `input_unregister_handler'
make[1]: *** [vmlinux] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Randy Dunlap [Wed, 11 Jun 2008 19:57:58 +0000 (12:57 -0700)]
rt2x00: INPUT build failure
Config symbols that select RFKILL need to depend on INPUT so that
undefined symbols are not used in the build.
This patch fixes the input_* symbols build errors.
(.text+0x174cdc): undefined reference to `input_unregister_device'
(.text+0x174d9f): undefined reference to `input_allocate_device'
(.text+0x174e2d): undefined reference to `input_register_device'
(.text+0x174e53): undefined reference to `input_free_device'
rt2x00rfkill.c:(.text+0x176dc4): undefined reference to `input_allocate_polled_device'
rt2x00rfkill.c:(.text+0x176e8b): undefined reference to `input_event'
rt2x00rfkill.c:(.text+0x176e9f): undefined reference to `input_event'
(.text+0x176eca): undefined reference to `input_unregister_polled_device'
(.text+0x176efc): undefined reference to `input_free_polled_device'
(.text+0x176f37): undefined reference to `input_free_polled_device'
(.text+0x176fd8): undefined reference to `input_register_polled_device'
(.text+0x1772c0): undefined reference to `led_classdev_resume'
(.text+0x1772d4): undefined reference to `led_classdev_resume'
(.text+0x1772e8): undefined reference to `led_classdev_resume'
(.text+0x17730a): undefined reference to `led_classdev_suspend'
(.text+0x17731e): undefined reference to `led_classdev_suspend'
(.text+0x17732f): undefined reference to `led_classdev_suspend'
rt2x00leds.c:(.text+0x177348): undefined reference to `led_classdev_unregister'
rt2x00leds.c:(.text+0x1773c0): undefined reference to `led_classdev_register'
rfkill-input.c:(.text+0x209e4c): undefined reference to `input_close_device'
rfkill-input.c:(.text+0x209e53): undefined reference to `input_unregister_handle'
rfkill-input.c:(.text+0x209ea1): undefined reference to `input_register_handle'
rfkill-input.c:(.text+0x209eae): undefined reference to `input_open_device'
rfkill-input.c:(.text+0x209ebb): undefined reference to `input_unregister_handle'
rfkill-input.c:(.init.text+0x17405): undefined reference to `input_register_handler'
rfkill-input.c:(.exit.text+0x194f): undefined reference to `input_unregister_handler'
make[1]: *** [vmlinux] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Thu, 12 Jun 2008 10:36:29 +0000 (12:36 +0200)]
b43: Fix noise calculation WARN_ON
This removes a WARN_ON that is responsible for the following koops:
http://www.kerneloops.org/searchweek.php?search=b43_generate_noise_sample
The comment in the patch describes why it's safe to simply remove
the check.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Thu, 12 Jun 2008 09:58:56 +0000 (11:58 +0200)]
b43: Fix possible NULL pointer dereference in DMA code
This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().
This patch moves the whole struct b43_dmaring struct initialization
right before any DMA allocation operation.
Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gertjan van Wingerde [Tue, 3 Jun 2008 18:29:47 +0000 (20:29 +0200)]
rt2x00: Restrict DMA to 32-bit addresses.
None of the rt2x00 PCI devices support 64-bit DMA addresses (they all
only accept 32-bit buffer addresses). Hence it makes no sense to try to
enable 64-bit DMA addresses. Only try to enable 32-bit DMA addresses.
Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ivo van Doorn [Tue, 3 Jun 2008 18:29:50 +0000 (20:29 +0200)]
rt2x00: Don't kill guardian_urb when it wasn't created
This fixes a "BUG: unable to handle kernel paging request"
bug in rt73usb which was caused by killing the guardian_urb
while it had never been allocated for rt73usb.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Fri, 13 Jun 2008 16:47:07 +0000 (09:47 -0700)]
Merge git://git./linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: update my email address
parisc: fix miscompilation of ip_fast_csum with gcc >= 4.3
parisc: fix off by one in setup_sigcontext32
parisc: export empty_zero_page
parisc: export copy_user_page_asm
parisc: move head.S to head.text section
Revert "parisc: fix trivial section name warnings"
Kyle McMartin [Fri, 6 Jun 2008 21:16:17 +0000 (17:16 -0400)]
parisc: update my email address
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Sat, 31 May 2008 16:15:42 +0000 (12:15 -0400)]
parisc: fix miscompilation of ip_fast_csum with gcc >= 4.3
ip_fast_csum needs an asm "memory" clobber, otherwise the aggressive
optimizations in gcc-4.3 cause it to be miscompiled.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Tue, 27 May 2008 05:56:29 +0000 (01:56 -0400)]
parisc: fix off by one in setup_sigcontext32
Thankfully, the values were irrelevant... Spotted by
newer gcc.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Mon, 26 May 2008 05:54:35 +0000 (01:54 -0400)]
parisc: export empty_zero_page
Needed by ext4 when built as a module.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Mon, 26 May 2008 05:49:01 +0000 (01:49 -0400)]
parisc: export copy_user_page_asm
Needed by fuse (via copy_highpage).
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Thu, 22 May 2008 18:38:26 +0000 (14:38 -0400)]
parisc: move head.S to head.text section
And explicitly list it in vmlinux.lds...
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Kyle McMartin [Thu, 22 May 2008 18:36:31 +0000 (14:36 -0400)]
Revert "parisc: fix trivial section name warnings"
This reverts commit
bd3bb8c15b9a80dbddfb7905b237a4a11a4725b4.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Linus Torvalds [Fri, 13 Jun 2008 14:40:57 +0000 (07:40 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ahci: Workaround HW bug for SB600/700 SATA controller PMP support
ahci: workarounds for mcp65
Linus Torvalds [Fri, 13 Jun 2008 14:34:47 +0000 (07:34 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
tcp: Revert 'process defer accept as established' changes.
ipv6: Fix duplicate initialization of rawv6_prot.destroy
bnx2x: Updating the Maintainer
net: Eliminate flush_scheduled_work() calls while RTNL is held.
drivers/net/r6040.c: correct bad use of round_jiffies()
fec_mpc52xx: MPC52xx_MESSAGES_DEFAULT: 2nd NETIF_MSG_IFDOWN => IFUP
ipg: fix receivemode IPG_RM_RECEIVEMULTICAST{,HASH} in ipg_nic_set_multicast_list()
netfilter: nf_conntrack: fix ctnetlink related crash in nf_nat_setup_info()
netfilter: Make nflog quiet when no one listen in userspace.
ipv6: Fail with appropriate error code when setting not-applicable sockopt.
ipv6: Check IPV6_MULTICAST_LOOP option value.
ipv6: Check the hop limit setting in ancillary data.
ipv6 route: Fix route lifetime in netlink message.
ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
dccp: Bug in initial acknowledgment number assignment
dccp ccid-3: X truncated due to type conversion
dccp ccid-3: TFRC reverse-lookup Bug-Fix
dccp ccid-2: Bug-Fix - Ack Vectors need to be ignored on request sockets
dccp: Fix sparse warnings
dccp ccid-3: Bug-Fix - Zero RTT is possible
Linus Torvalds [Fri, 13 Jun 2008 14:34:01 +0000 (07:34 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: get leo framebuffer working
Shane Huang [Tue, 10 Jun 2008 07:52:04 +0000 (15:52 +0800)]
ahci: Workaround HW bug for SB600/700 SATA controller PMP support
There is one bug in ATI SATA PMP of SB600 and SB700 old revision, which leads
to soft reset failure. This patch can fix the bug.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Mon, 9 Jun 2008 15:13:04 +0000 (00:13 +0900)]
ahci: workarounds for mcp65
MCP65 ahci can do NCQ but doesn't set the CAP bit and rev A0 and A1
can't do MSI but have MSI capability. Implement AHCI_HFLAG_YES_NCQ
and apply appropriate workarounds.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Peer Chen <pchen@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Linus Torvalds [Fri, 13 Jun 2008 02:37:29 +0000 (19:37 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5091/1: Add missing bitfield include to regs-lcd.h
[ARM] 5090/1: Correct pxafb palette typo error
[ARM] 5077/1: spi: fix list scan success verification in PXA ssp driver
Sergey Lapin [Thu, 12 Jun 2008 22:21:55 +0000 (15:21 -0700)]
rtc: Ramtron FM3130 RTC support
Ramtron FM3130 is a chip with two separate devices inside, RTC clock and
FRAM. This driver provides only RTC functionality.
This chip is met in lots of custom boards with AT91SAMXXXX CPU I work
with, is cheap and in no way better or worse than any other RTC on market.
While it is mostly met on much smaller devices, I think it is great to
have it supported in Linux.
Signed-off-by: Sergey Lapin <slapin@ossfans.org>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Thu, 12 Jun 2008 22:21:55 +0000 (15:21 -0700)]
rtc: make HPET_RTC_IRQ track HPET_EMULATE_RTC
More Kconfig tweaks related to the legacy PC RTC code:
- Describe the legacy PC RTC driver as such ... it's never quite
been clear that this driver is for PC RTCs, and now it's fair
to call this the "legacy" driver.
- Force it to understand about HPET stealing its IRQs ... kernel
code does this always when HPET is in use, there should be no
option for users to goof up the config.
This seems to fix kernel bugzilla #10729.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stas Sergeev [Thu, 12 Jun 2008 22:21:54 +0000 (15:21 -0700)]
provide rtc_cmos platform device
Recently (around 2.6.25) I've noticed that RTC no longer works for me. It
turned out this is because I use pnpacpi=off kernel option to work around
the parport_pc bugs. I always did so, but RTC used to work fine in the
past, and now it have regressed.
The patch fixes the problem by creating the platform device for the RTC
when PNP is disabled. This may also help running the PNP-enabled kernel
on an older PCs.
Signed-off-by: Stas Sergeev <stsp@aknet.ru>
Cc: David Brownell <david-b@pacbell.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Piggin [Thu, 12 Jun 2008 22:21:52 +0000 (15:21 -0700)]
radix-tree: fix small lockless radix-tree bug
We shrink a radix tree when its root node has only one child, in the left
most slot. The child becomes the new root node. To perform this
operation in a manner compatible with concurrent lockless lookups, we
atomically switch the root pointer from the parent to its child.
However a concurrent lockless lookup may now have loaded a pointer to the
parent (and is presently deciding what to do next). For this reason, we
also have to keep the parent node in a valid state after shrinking the
tree, until the next RCU grace period -- otherwise this lookup with the
parent pointer may not do the right thing. Notably, we need to keep the
child in the left most slot there in case that is requested by the lookup.
This is all pretty standard RCU stuff. It is worth repeating because in
my eagerness to obey the radix tree node constructor scheme, I had broken
it by zeroing the radix tree node before the grace period.
What could happen is that a lookup can load the parent pointer, then
decide it wants to follow the left most child slot, only to find the slot
contained NULL due to the concurrent shrinker having zeroed the parent
node before waiting for a grace period. The lookup would return a false
negative as a result.
Fix it by doing that clearing in the RCU callback. I would normally want
to rip out the constructor entirely, but radix tree nodes are one of those
places where they make sense (only few cachelines will be touched soon
after allocation).
This was never actually found in any lockless pagecache testing or by the
test harness, but by seeing the odd problem with my scalable vmap rewrite.
I have not tickled the test harness into reproducing it yet, but I'll
keep working at it.
Fortunately, it is not a problem anywhere lockless pagecache is used in
mainline kernels (pagecache probe is not a guarantee, and brd does not
have concurrent lookups and deletes).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jiri Bohac [Thu, 12 Jun 2008 22:21:51 +0000 (15:21 -0700)]
console keyboard mapping broken by
04c71976
Several console keyboard maps are broken since
commit
04c71976500352d02f60616d2b960267d8c5fe24
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Tue Oct 16 23:27:04 2007 -0700
unicode diacritics support
because that changeset made k_self consider the value as a latin1
character when in Unicode mode, which is wrong; k_self should still take
the console map into account.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Menage [Thu, 12 Jun 2008 22:21:49 +0000 (15:21 -0700)]
/proc/sysvipc/shm: fix 32-bit truncation of segment sizes
sysvipc_shm_proc_show() picks between format strings (based on the
expected maximum length of a SHM segment) in a way that prevents gcc from
performing format checks on the seq_printf() parameters. This hid two
format errors - shp->shm_segsz and shp->shm_nattach are both unsigned
long, but were being printed as unsigned int and signed int respectively.
This leads to 32-bit truncation of SHM segment sizes reported in
/proc/sysvipc/shm. (And for nattach, but that's less of a problem for
most users).
This patch makes the format string directly visible to gcc's format
specifier checker, and fixes the two broken format specifiers.
Signed-off-by: Paul Menage <menage@google.com>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Pierre Peiffer <peifferp@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Hansen [Thu, 12 Jun 2008 22:21:48 +0000 (15:21 -0700)]
pagemap: fix large pages in pagemap
We were walking right into huge page areas in the pagemap walker, and
calling the pmds pmd_bad() and clearing them.
That leaked huge pages. Bad.
This patch at least works around that for now. It ignores huge pages in
the pagemap walker for the time being, and won't leak those pages.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Hansen [Thu, 12 Jun 2008 22:21:47 +0000 (15:21 -0700)]
pagemap: pass mm into pagewalkers
We need this at least for huge page detection for now, because powerpc
needs the vm_area_struct to be able to determine whether a virtual address
is referring to a huge page (its pmd_huge() doesn't work).
It might also come in handy for some of the other users.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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