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16 years agoiwlwifi: better station table maintenance
Emmanuel Grumbach [Mon, 30 Jun 2008 09:23:03 +0000 (17:23 +0800)]
iwlwifi: better station table maintenance

This patch makes the station table maintenance safer. Two flags are
maintained:

1) if station is present in driver
2) if station is present in uCode

This will allow us in the future to deal with more stations than the
firmware allows.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@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>
16 years agoiwlwifi: Add eeprom version to the version file in sysfs
Tomas Winkler [Mon, 30 Jun 2008 09:23:02 +0000 (17:23 +0800)]
iwlwifi: Add eeprom version to the version file in sysfs

This patch adds eeprom version display into device/version sysfs file
/sys/class/net/wlanX/devices/version

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: configure uCode to use open loop tx power algorithm
Gregory Greenman [Mon, 30 Jun 2008 09:23:01 +0000 (17:23 +0800)]
iwlwifi: configure uCode to use open loop tx power algorithm

This patch configures uCode to use open loop tx power algorithm
via TX_POWER_DBM (0x98) host command.

Signed-off-by: Gregory Greenman <gregory.greenman@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>
16 years agob43/b43legacy: add RFKILL_STATE_HARD_BLOCKED support
Adel Gadllah [Sun, 29 Jun 2008 17:20:21 +0000 (19:20 +0200)]
b43/b43legacy: add RFKILL_STATE_HARD_BLOCKED support

This patch sets the rfkill state to RFKILL_STATE_HARD_BLOCKED when the
radio is killed by the hardware switch.

Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43/b43legacy: use RFKILL_STATE_UNBLOCKED instead of RFKILL_STATE_ON
Adel Gadllah [Sat, 28 Jun 2008 12:20:40 +0000 (14:20 +0200)]
b43/b43legacy: use RFKILL_STATE_UNBLOCKED instead of RFKILL_STATE_ON

This patch removes the usage RFKILL_STATE_ON and uses
RFKILL_STATE_UNBLOCKED instead.

Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: fix warning: unused variable invoke_tx_handlers
Tomas Winkler [Sat, 28 Jun 2008 00:15:03 +0000 (03:15 +0300)]
mac80211: fix warning: unused variable invoke_tx_handlers

This patch fixes warning: unused variable in invoke_tx_handlers
when compiling without MAC80211_DEBUG option

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agohostap: use radiotap headers by default
Pavel Roskin [Fri, 27 Jun 2008 20:20:16 +0000 (16:20 -0400)]
hostap: use radiotap headers by default

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agohostap: add radiotap support in monitor mode
Pavel Roskin [Fri, 27 Jun 2008 20:20:10 +0000 (16:20 -0400)]
hostap: add radiotap support in monitor mode

Provide MAC time, rate, channel, signal and noise.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agohostap: don't skip any headers in hostap_80211_header_parse()
Pavel Roskin [Fri, 27 Jun 2008 20:20:04 +0000 (16:20 -0400)]
hostap: don't skip any headers in hostap_80211_header_parse()

Don't try to skip any headers in hostap_80211_header_parse().  We never
use that function for interfaces affected by local->monitor_type.  Both
the master and the AP interface receive 802.11 frames without any
additional headers.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: fix rfkill deps and remove input device usage
Adel Gadllah [Fri, 27 Jun 2008 17:45:07 +0000 (19:45 +0200)]
iwlwifi: fix rfkill deps and remove input device usage

This patch fixes the rfkill deps for iwl4965/5000
and removes the input device usage.

Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: removing duplicated parsing of information elements
Ester Kummer [Fri, 27 Jun 2008 15:54:48 +0000 (18:54 +0300)]
mac80211: removing duplicated parsing of information elements

This patch removes the duplicated parsing of information elements
in ieee80211_rx_bss_info and in ieee_rx_mgmt_beacon

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agobuild algorithms into the mac80211 module
Adrian Bunk [Thu, 26 Jun 2008 10:38:13 +0000 (13:38 +0300)]
build algorithms into the mac80211 module

The old infrastructure was:
- the default algorithm is built into mac80211
- other algorithms get into their own modules

The implementation of this complicated scheme was horrible
(just look at net/mac80211/Makefile), and anyone adding a new
algorithm would most likely not get it right at his first attempt.

This patch therefore builds all enabled algorithms into the mac80211
module.

The user interface for the rate control algorithms changes as follows:
- first the user can choose which algorithms to enable (currently only
  MAC80211_RC_PID is available)
- if more than one algorithm is enabled (currently not possible since
  only one algorithm is present) the user then chooses the default one

Note:
- MAC80211_RC_PID is always enables for CONFIG_EMBEDDED=n

Technical changes:
- all selected algorithms get into the mac80211 module
- net/mac80211/Makefile can now become much less complicated
- support for rc80211_pid_algo.c being modular is no longer required
- this includes unexporting mesh_plink_broken

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add last beacon time in scan list
Emmanuel Grumbach [Tue, 24 Jun 2008 10:38:00 +0000 (13:38 +0300)]
mac80211: add last beacon time in scan list

This patch adds the interval between the scan results and the last time a
beacon was received in the result of the scan.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add spectrum capabilities
Tomas Winkler [Wed, 18 Jun 2008 14:53:44 +0000 (17:53 +0300)]
mac80211: add spectrum capabilities

This patch add spectrum capability and required information
elements to association request providing AP has requested it and
it is supported by the driver

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add MAC80211_VERBOSE_SPECT_MGMT_DEBUG Kconfig option
Yi Zhu [Wed, 18 Jun 2008 14:53:43 +0000 (17:53 +0300)]
mac80211: add MAC80211_VERBOSE_SPECT_MGMT_DEBUG Kconfig option

The patch introduces MAC80211_VERBOSE_SPECT_MGMT_DEBUG Kconfig option to
suppress Spectrum Management 802.11h related debug logs.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwl-rfkill.c: correct 'recieved' typo
John W. Linville [Fri, 27 Jun 2008 17:04:25 +0000 (13:04 -0400)]
iwl-rfkill.c: correct 'recieved' typo

Correct typo introduced by "wireless: remove RFKILL_STATE_HARD_BLOCKED
warnings".

Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...
David S. Miller [Sun, 29 Jun 2008 05:57:58 +0000 (22:57 -0700)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-next-2.6

16 years agoMerge branch 'davem-next' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
David S. Miller [Sun, 29 Jun 2008 04:28:46 +0000 (21:28 -0700)]
Merge branch 'davem-next' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6

16 years ago[netdrvr] kill sync_irq-before-freq_irq pattern
Jeff Garzik [Fri, 27 Jun 2008 06:20:20 +0000 (02:20 -0400)]
[netdrvr] kill sync_irq-before-freq_irq pattern

synchronize_irq() is superfluous when free_irq() call immediately follows it,
because free_irq() also does a synchronize_irq() call of its own.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years ago[netdrvr] fealnx: clean up nasty mess of arch ifdefs
Jeff Garzik [Fri, 27 Jun 2008 06:18:50 +0000 (02:18 -0400)]
[netdrvr] fealnx: clean up nasty mess of arch ifdefs

Clean up config/burst value arch-specific setup.

* bcrvalue only varied by its big-endian bit
* crvalue only varied for certain types of x86-32 chips

This should make fealnx quite a bit more portable, without any behavior
change.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agotulip: remove wrapper around get_unaligned
Harvey Harrison [Wed, 28 May 2008 23:51:04 +0000 (16:51 -0700)]
tulip: remove wrapper around get_unaligned

DE_UNALIGNED_16 is always being passed a u16 *, no need to have the
wrapper with two casts in it, just call get_unaligned directly.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoFix forcedeth hibernate/wake-on-lan problems
Tobias Diedrich [Sat, 31 May 2008 23:20:05 +0000 (01:20 +0200)]
Fix forcedeth hibernate/wake-on-lan problems

This patch is the minimal amount of code needed to support
wake-on-lan in platform mode properly (i.e. "ethtool -s eth0 wol g"
is sufficient, no additional magic needed) for me.

This is derived from David Brownells patch
(http://lists.laptop.org/pipermail/devel/2007-April/004691.html).
However I decided to move the hook into pci-acpi.c since the other
two pci hooks also live there and pci and acpi are the only users of
the platform_enable_wakeup-hook.

As a 'side-effect' this also makes wake on usb activity work for me
and I had to disable usb wakeup (which is enabled by default) using
the power/wakeup sysfs functionality ("echo disabled >
${sysfs_path_to_device}/power/wakeup").

(BTW I first thought the 'immediate reboot because of usb wake' effect is
caused by the optical mouse generating a wake event, but it rather
seems to be a problem with a flaky secondary usb host controller,
which sees a connected device where nothing is attached)

Signed-off-by: Tobias Diedrich <ranma+kernel@tdiedrich.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoFix forcedeth hibernate/wake-on-lan problems
Tobias Diedrich [Sat, 31 May 2008 22:54:42 +0000 (00:54 +0200)]
Fix forcedeth hibernate/wake-on-lan problems

We currently don't signal the kernel we that this device can wake
the system.  Call device_init_wakeup() to correct this.
Without this device_can_wakeup and device_may_wakeup will return
incorrect values.
Together with the minimized acpi wakeup patch (6/4 ;)), which will
follow in the next mail, this really makes wake-on-lan work for me
as expected (i.e. "ethtool -s eth0 wol g" is sufficient, no
additional magic needed).

Signed-off-by: Tobias Diedrich <ranma+kernel@tdiedrich.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years ago8139too: some style cleanups
Márton Németh [Sun, 15 Jun 2008 07:52:30 +0000 (09:52 +0200)]
8139too: some style cleanups

Clean up the following errors and warnings reported by checkpatch.pl:
 + ERROR: Macros with complex values should be enclosed in parenthesis
 + WARNING: __func__ should be used instead of gcc specific __FUNCTION__
 + WARNING: plain inline is preferred over __inline__
 + WARNING: Use #include <linux/io.h> instead of <asm/io.h>
 + WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

The changes were verified with by comparing the "objdump -d 8139too.ko"
output which is exactly the same for the old and new version in case of
config CONFIG_8139TOO=m, CONFIG_8139TOO_PIO=n, CONFIG_8139TOO_TUNE_TWISTER=n,
CONFIG_8139TOO_8129=n, CONFIG_8139_OLD_RX_RESET=n.
Software versions used: gcc 4.2.3, objdump 2.18.0.20080103, on elf32-i386.

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agorndis_host: pass buffer length to rndis_command
Jussi Kivilinna [Wed, 18 Jun 2008 12:40:12 +0000 (15:40 +0300)]
rndis_host: pass buffer length to rndis_command

Pass buffer length to rndis_command so that rndis_command can read full
response buffer from device instead of max CONTROL_BUFFER_SIZE bytes.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agonet: sh_eth: Fix compile error sh_eth
Nobuhiro Iwamatsu [Wed, 18 Jun 2008 09:32:09 +0000 (18:32 +0900)]
net: sh_eth: Fix compile error sh_eth

Fix compile error on sh_eth and remove base address macro.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoe1000: remove e1000_clean_tx_irq call from e1000_netpoll
Andy Gospodarek [Thu, 19 Jun 2008 21:19:12 +0000 (17:19 -0400)]
e1000: remove e1000_clean_tx_irq call from e1000_netpoll

The call to e1000_clean_tx_irq in e1000_netpoll can race with the call
to e1000_clean_tx_irq in e1000_clean.  With a small bit of tweaking to
to netpoll_send_skb to simulate a system that was under extreme stress,
I was able to reproduce these concurrent calls.  This can result in
multiple frees to the skbs on the tx ring buffer.

Dropping this call from e1000_netpoll should be fine since we can rely
on the calls in e1000_clean to do what is needed since napi will poll
the hardware just after calling poll_controller.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoigb: make ioport free
Taku Izumi [Fri, 20 Jun 2008 03:10:30 +0000 (12:10 +0900)]
igb: make ioport free

This patch makes igb driver ioport-free.
This corrects behavior in probe function so as not to request ioport
resources as long as they are not really needed.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoe1000e: make ioport free
Taku Izumi [Fri, 20 Jun 2008 02:57:02 +0000 (11:57 +0900)]
e1000e: make ioport free

This patch makes e1000e driver ioport-free.
This corrects behavior in probe function so as not to request ioport
resources as long as they are not really needed.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoe1000: remove PCI Express device IDs
Auke Kok [Sun, 22 Jun 2008 22:21:29 +0000 (15:21 -0700)]
e1000: remove PCI Express device IDs

We do not want to prolong the situation much longer that e1000
and e1000e support these devices at the same time. As a result,
take out the bandage that was added for the interim period
and remove all the PCI Express device IDs from e1000.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
16 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
David S. Miller [Sat, 28 Jun 2008 08:19:40 +0000 (01:19 -0700)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Conflicts:

drivers/net/wireless/iwlwifi/iwl4965-base.c

16 years agoipv6 route: Convert rt6_device_match() to use RT6_LOOKUP_F_xxx flags.
YOSHIFUJI Hideaki [Sat, 28 Jun 2008 03:14:54 +0000 (20:14 -0700)]
ipv6 route: Convert rt6_device_match() to use RT6_LOOKUP_F_xxx flags.

The commit 77d16f450ae0452d7d4b009f78debb1294fb435c ("[IPV6] ROUTE:
Unify RT6_F_xxx and RT6_SELECT_F_xxx flags") intended to pass various
routing lookup hints around RT6_LOOKUP_F_xxx flags, but conversion was
missing for rt6_device_match().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonetlabel: Fix a problem when dumping the default IPv6 static labels
Paul Moore [Sat, 28 Jun 2008 03:12:32 +0000 (20:12 -0700)]
netlabel: Fix a problem when dumping the default IPv6 static labels

There is a missing "!" in a conditional statement which is causing entries to
be skipped when dumping the default IPv6 static label entries.  This can be
demonstrated by running the following:

 # netlabelctl unlbl add default address:::1 \
                                 label:system_u:object_r:unlabeled_t:s0
 # netlabelctl -p unlbl list

... you will notice that the entry for the IPv6 localhost address is not
displayed but does exist (works correctly, causes collisions when attempting
to add duplicate entries, etc.).

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonet/inet_lro: remove setting skb->ip_summed when not LRO-able
Eli Cohen [Sat, 28 Jun 2008 03:09:00 +0000 (20:09 -0700)]
net/inet_lro: remove setting skb->ip_summed when not LRO-able

When an SKB cannot be chained to a session, the current code attempts
to "restore" its ip_summed field from lro_mgr->ip_summed. However,
lro_mgr->ip_summed does not hold the original value; in fact, we'd
better not touch skb->ip_summed since it is not modified by the code
in the path leading to a failure to chain it.  Also use a cleaer
comment to the describe the ip_summed field of struct net_lro_mgr.

Issue raised by Or Gerlitz <ogerlitz@voltaire.com>

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoinet fragments: fix race between inet_frag_find and inet_frag_secret_rebuild
Pavel Emelyanov [Sat, 28 Jun 2008 03:06:08 +0000 (20:06 -0700)]
inet fragments: fix race between inet_frag_find and inet_frag_secret_rebuild

The problem is that while we work w/o the inet_frags.lock even
read-locked the secret rebuild timer may occur (on another CPU, since
BHs are still disabled in the inet_frag_find) and change the rnd seed
for ipv4/6 fragments.

It was caused by my patch fd9e63544cac30a34c951f0ec958038f0529e244
([INET]: Omit double hash calculations in xxx_frag_intern) late
in the 2.6.24 kernel, so this should probably be queued to -stable.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoCONNECTOR: add a proc entry to list connectors
Li Zefan [Sat, 28 Jun 2008 03:03:24 +0000 (20:03 -0700)]
CONNECTOR: add a proc entry to list connectors

I got a problem when I wanted to check if the kernel supports process
event connector, and It seems there's no way to do this check.

At best I can check if the kernel supports connector or not, by looking
into /proc/net/netlink, or maybe checking the return value of bind() to
see if it's ENOENT.

So it would be useful to add /proc/net/connector to list all supported
connectors:
 # cat /proc/net/connector
 Name            ID
 connector       4294967295:4294967295
 cn_proc         1:1
 w1              3:1

Changelog:
- fix memory leak: s/seq_release/single_release
- use spin_lock_bh instead of spin_lock_irqsave

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonetlink: Fix some doc comments in net/netlink/attr.c
Julius Volz [Sat, 28 Jun 2008 03:02:14 +0000 (20:02 -0700)]
netlink: Fix some doc comments in net/netlink/attr.c

Fix some doc comments to match function and attribute names in
net/netlink/attr.c.

Signed-off-by: Julius Volz <juliusv@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotcp: /proc/net/tcp rto,ato values not scaled properly (v2)
Stephen Hemminger [Sat, 28 Jun 2008 03:00:19 +0000 (20:00 -0700)]
tcp: /proc/net/tcp rto,ato values not scaled properly (v2)

I found another case where we are sending information to userspace
in the wrong HZ scale.  This should have been fixed back in 2.5 :-(

This means an ABI change but as it stands there is no way for an application
like ss to get the right value.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoinclude/linux/netdevice.h: don't export MAX_HEADER to userspace
Adrian Bunk [Sat, 28 Jun 2008 02:54:54 +0000 (19:54 -0700)]
include/linux/netdevice.h: don't export MAX_HEADER to userspace

Due to the CONFIG_'s the value is anyway not correct in userspace.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agopkt_sched: Remove CONFIG_NET_SCH_RR
Adrian Bunk [Sat, 28 Jun 2008 02:54:05 +0000 (19:54 -0700)]
pkt_sched: Remove CONFIG_NET_SCH_RR

Commit d62733c8e437fdb58325617c4b3331769ba82d70
([SCHED]: Qdisc changes and sch_rr added for multiqueue)
added a NET_SCH_RR option that was unused since the code
went unconditionally into sch_prio.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agopkt_sched: ERR_PTR() ususally encodes an negative errno, not positive.
WANG Cong [Sat, 28 Jun 2008 02:51:35 +0000 (19:51 -0700)]
pkt_sched: ERR_PTR() ususally encodes an negative errno, not positive.

Note, in the following patch, 'err' is initialized as:

int err = -ENOBUFS;

Signed-off-by: WANG Cong <wcong@critical-links.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agonetdevice: Fix typo of dev_unicast_add() comment
Wang Chen [Sat, 28 Jun 2008 02:35:16 +0000 (19:35 -0700)]
netdevice: Fix typo of dev_unicast_add() comment

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoaf_unix: fix 'poll for write'/connected DGRAM sockets
Rainer Weikusat [Sat, 28 Jun 2008 02:34:18 +0000 (19:34 -0700)]
af_unix: fix 'poll for write'/connected DGRAM sockets

For n:1 'datagram connections' (eg /dev/log), the unix_dgram_sendmsg
routine implements a 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 PF_UNIX non-stream sockets connected to
server sockets dealing with (potentially) multiple clients if 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_recvmsg 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>
16 years agotcp: fix for splice receive when used with software LRO
Octavian Purdila [Sat, 28 Jun 2008 00:27:21 +0000 (17:27 -0700)]
tcp: fix for splice receive when used with software LRO

If an skb has nr_frags set to zero but its frag_list is not empty (as
it can happen if software LRO is enabled), and a previous
tcp_read_sock has consumed the linear part of the skb, then
__skb_splice_bits:

(a) incorrectly reports an error and

(b) forgets to update the offset to account for the linear part

Any of the two problems will cause the subsequent __skb_splice_bits
call (the one that handles the frag_list skbs) to either skip data,
or, if the unadjusted offset is greater then the size of the next skb
in the frag_list, make tcp_splice_read loop forever.

Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agotcp: calculate tcp_mem based on low memory instead of all memory
Miquel van Smoorenburg [Sat, 28 Jun 2008 00:23:57 +0000 (17:23 -0700)]
tcp: calculate tcp_mem based on low memory instead of all memory

The tcp_mem array which contains limits on the total amount of memory
used by TCP sockets is calculated based on nr_all_pages.  On a 32 bits
x86 system, we should base this on the number of lowmem pages.

Signed-off-by: Miquel van Smoorenburg <miquels@cistron.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agohamradio: remove unused variable
Andre Haupt [Sat, 28 Jun 2008 00:22:08 +0000 (17:22 -0700)]
hamradio: remove unused variable

Signed-off-by: Andre Haupt <andre@bitwigglers.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agomac80211: fix an oops in several failure paths in key allocation
Emmanuel Grumbach [Thu, 26 Jun 2008 09:13:46 +0000 (12:13 +0300)]
mac80211: fix an oops in several failure paths in key allocation

This patch fixes an oops in several failure paths in key allocation. This
Oops occurs when freeing a key that has not been linked yet, so the
key->sdata is not set.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoprism: islpci_eth.c endianness fix
Harvey Harrison [Wed, 25 Jun 2008 21:20:37 +0000 (14:20 -0700)]
prism: islpci_eth.c endianness fix

clock is already cpu-endian (see le32_to_cpu slightly before), so
le64_to_cpu doesn't make much sense.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Fix lock dependency errror
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>
16 years agowireless: remove RFKILL_STATE_HARD_BLOCKED warnings
John W. Linville [Fri, 27 Jun 2008 14:27:47 +0000 (10:27 -0400)]
wireless: remove RFKILL_STATE_HARD_BLOCKED warnings

  CC [M]  drivers/net/wireless/b43/rfkill.o
drivers/net/wireless/b43/rfkill.c: In function ‘b43_rfkill_soft_toggle’:
drivers/net/wireless/b43/rfkill.c:90: warning: enumeration value ‘RFKILL_STATE_HARD_BLOCKED’ not handled in switch

  CC [M]  drivers/net/wireless/b43legacy/rfkill.o
drivers/net/wireless/b43legacy/rfkill.c: In function ‘b43legacy_rfkill_soft_toggle’:
drivers/net/wireless/b43legacy/rfkill.c:92: warning: enumeration value ‘RFKILL_STATE_HARD_BLOCKED’ not handled in switch

  CC [M]  drivers/net/wireless/iwlwifi/iwl-rfkill.o
drivers/net/wireless/iwlwifi/iwl-rfkill.c: In function ‘iwl_rfkill_soft_rf_kill’:
drivers/net/wireless/iwlwifi/iwl-rfkill.c:56: warning: enumeration value ‘RFKILL_STATE_HARD_BLOCKED’ not handled in switch

Also handle RFKILL_STATE_{ON,OFF} -> RFKILL_STATE_{UNBLOCKED,SOFT_BLOCKED}
conversion since I'm already here...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoath5k: remove now unused variable declared in ath5k_tx
John W. Linville [Fri, 27 Jun 2008 13:31:29 +0000 (09:31 -0400)]
ath5k: remove now unused variable declared in ath5k_tx

  CC [M]  drivers/net/wireless/ath5k/base.o
drivers/net/wireless/ath5k/base.c: In function ‘ath5k_tx’:
drivers/net/wireless/ath5k/base.c:2598: warning: unused variable ‘info’

Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: fix tx fragmentation
Johannes Berg [Wed, 25 Jun 2008 11:36:27 +0000 (14:36 +0300)]
mac80211: fix tx fragmentation

This patch fixes TX fragmentation caused by
tx handlers reordering and 'tx info to cb' patches

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: make workqueue freezable
Johannes Berg [Thu, 26 Jun 2008 17:59:56 +0000 (19:59 +0200)]
mac80211: make workqueue freezable

This patch makes the mac80211 workqueue freezable making it
interact a bit better with system suspend and not try to ping
the AP while the hardware is down.

This doesn't really help with implementing proper suspend in
any way but makes some bad things trigger less.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agowireless: Small cleanups
Pavel Machek [Wed, 25 Jun 2008 10:25:53 +0000 (12:25 +0200)]
wireless: Small cleanups

Small whitespace cleanups for wireless drivers

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoiwlwifi: fix build for CONFIG_INPUT=n
Randy Dunlap [Wed, 25 Jun 2008 04:02:46 +0000 (21:02 -0700)]
iwlwifi: fix build for CONFIG_INPUT=n

Fix iwlwifi so that it builds cleanly with CONFIG_INPUT=n.
Also free the input device on exit.

drivers/built-in.o: In function `iwl_rfkill_unregister':
(.text+0xbf430): undefined reference to `input_unregister_device'
drivers/built-in.o: In function `iwl_rfkill_init':
(.text+0xbf51c): undefined reference to `input_allocate_device'
drivers/built-in.o: In function `iwl_rfkill_init':
(.text+0xbf5bf): undefined reference to `input_register_device'
drivers/built-in.o: In function `iwl_rfkill_init':
(.text+0xbf5e9): undefined reference to `input_free_device'
net/built-in.o: In function `rfkill_disconnect':
rfkill-input.c:(.text+0xe71e1): undefined reference to `input_close_device'
rfkill-input.c:(.text+0xe71e9): undefined reference to `input_unregister_handle'
net/built-in.o: In function `rfkill_connect':
rfkill-input.c:(.text+0xe723e): undefined reference to `input_register_handle'
rfkill-input.c:(.text+0xe724d): undefined reference to `input_open_device'
rfkill-input.c:(.text+0xe725c): undefined reference to `input_unregister_handle'
net/built-in.o: In function `rfkill_handler_init':
rfkill-input.c:(.init.text+0x36ec): undefined reference to `input_register_handler'
net/built-in.o: In function `rfkill_handler_exit':
rfkill-input.c:(.exit.text+0x112c): undefined reference to `input_unregister_handler'
make[1]: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Add RTNL warning for workqueue
Ivo van Doorn [Tue, 24 Jun 2008 17:23:36 +0000 (19:23 +0200)]
mac80211: Add RTNL warning for workqueue

The workqueue provided by mac80211 should not be used for
scheduled tasks that acquire the RTNL lock. This could be done
when the driver uses the function ieee80211_iterate_active_interfaces()
within the scheduled work. Such behavior will end in locking
dependencies problems when an interface is being removed.

This patch will add a notification about the RTNL locking and
the mac80211 workqueue to prevent driver developers from
blindly using it.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add phy information to giwname
Tomas Winkler [Tue, 24 Jun 2008 12:50:17 +0000 (15:50 +0300)]
mac80211: add phy information to giwname

This patch add phy information to giwname.

Quoting:
It's not useless, it's supposed to tell you about the protocol
capability of the device, like "IEEE 802.11b" or "IEEE 802.11abg"

Jean

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: update the authentication method
Emmanuel Grumbach [Tue, 24 Jun 2008 10:37:59 +0000 (13:37 +0300)]
mac80211: update the authentication method

This patch updates the authentication method upon giwencode ioctl.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: don't return -EINVAL upon iwconfig wlan0 rts auto
Emmanuel Grumbach [Tue, 24 Jun 2008 10:37:58 +0000 (13:37 +0300)]
mac80211: don't return -EINVAL upon iwconfig wlan0 rts auto

This patch avoids returning -EINVAL upon iwconfig wlan0 rts auto. If
rts->fixed is 0, then we should choose a default value instead of failing.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Fix PIO skb clobber
Michael Buesch [Tue, 24 Jun 2008 10:22:05 +0000 (12:22 +0200)]
b43: Fix PIO skb clobber

This fixes a clobber of the skb that was introduced by the
tx_control->cb conversion patches.
This bug causes a crash when the skb destructor is invoked. That happens
on skb_orphan or skb_kfree.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: kill URB for all TX queues during disable_radio()
Ivo van Doorn [Mon, 23 Jun 2008 17:56:50 +0000 (19:56 +0200)]
rt2x00: kill URB for all TX queues during disable_radio()

During rt2x00usb_disable_radio() all pending urb's should
be killed and not only those from the RX queue.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: mlme.c use new frame control helpers
Harvey Harrison [Sun, 22 Jun 2008 23:45:32 +0000 (16:45 -0700)]
mac80211: mlme.c use new frame control helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: rx.c use new frame control helpers
Harvey Harrison [Sun, 22 Jun 2008 23:45:29 +0000 (16:45 -0700)]
mac80211: rx.c use new frame control helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: tx.c use new frame control helpers
Harvey Harrison [Sun, 22 Jun 2008 23:45:27 +0000 (16:45 -0700)]
mac80211: tx.c use new frame control helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: wep.c use new frame control helpers
Harvey Harrison [Sun, 22 Jun 2008 23:45:23 +0000 (16:45 -0700)]
mac80211: wep.c use new frame control helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoath5k: convert LED code to use mac80211 triggers
Bob Copeland [Thu, 26 Jun 2008 02:35:28 +0000 (22:35 -0400)]
ath5k: convert LED code to use mac80211 triggers

This change cleans up the ath5k LED code and converts it to use
the standard LED device class along with the rx/tx LED triggers
provided by mac80211.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: Let drivers have access to TKIP key offets for TX and RX MIC
Luis R. Rodriguez [Sat, 21 Jun 2008 14:02:46 +0000 (10:02 -0400)]
mac80211: Let drivers have access to TKIP key offets for TX and RX MIC

Some drivers may want to to use the TKIP key offsets for TX and RX
MIC so lets move this out. Lets also clear up a bit how this is used
internally in mac80211.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Remove duplicate deinitialization
Ivo van Doorn [Fri, 20 Jun 2008 20:10:53 +0000 (22:10 +0200)]
rt2x00: Remove duplicate deinitialization

When rt2x00queue_alloc_rxskbs() fails rt2x00queue_unitialize()
will be called which will free all rxskb. So we don't need
to do this in the rt2x00queue_alloc_rxskb() function as well.

rt2x00queue_free_skb() unmaps the DMA but doesn't clear the
allocation flag. Since the code is copied from rt2x00queue_unmap_skb()
anyway (and that function does clear the flag) we might as well
use that function directly.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Add debugfs firmware debugging knob
Michael Buesch [Fri, 20 Jun 2008 16:02:08 +0000 (18:02 +0200)]
b43: Add debugfs firmware debugging knob

This adds a firmware debugging knob to debugfs.
With this knob it's possible to enable advanced runtime firmware
checks.
For now it only implements one sanity check for the mac-suspend.
In future there'll probably be more.
If CONFIG_B43_DEBUG is disabled, these checks will collapse to nothing.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Add simple firmware watchdog
Michael Buesch [Fri, 20 Jun 2008 15:44:02 +0000 (17:44 +0200)]
b43: Add simple firmware watchdog

This adds a simple firmware watchdog for the opensource firmware.
This will check every 15 seconds, if the firmware zeroed out the watchdog
register. The firmware will do this in its eventloop.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: rename TKIP debugging Kconfig symbol
Johannes Berg [Fri, 20 Jun 2008 09:54:24 +0000 (11:54 +0200)]
mac80211: rename TKIP debugging Kconfig symbol

... to MAC80211_TKIP_DEBUG rather than TKIP_DEBUG.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agossb, b43, b43legacy, b44: Rewrite SSB DMA API
Michael Buesch [Fri, 20 Jun 2008 09:50:29 +0000 (11:50 +0200)]
ssb, b43, b43legacy, b44: Rewrite SSB DMA API

This is a rewrite of the DMA API for SSB devices.
This is needed, because the old (non-existing) "API" made too many bad
assumptions on the API of the host-bus (PCI).
This introduces an almost complete SSB-DMA-API that maps to the lowlevel
bus-API based on the bustype.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...
David S. Miller [Fri, 27 Jun 2008 11:26:58 +0000 (04:26 -0700)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6

16 years agoHold RTNL while calling dev_close()
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>
16 years agoqla3xxx: Hold RTNL while calling dev_close()
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>
16 years ago[netdrvr] Fix IOMMU overflow checking in s2io.c
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>
16 years agoe1000: only enable TSO6 via ethtool when using correct hardware
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>
16 years agoe100: Do pci_dma_sync after skb_alloc for proper operation on ixp4xx
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>
16 years ago[netdrvr] netxen: fix netxen_pci_tbl[] breakage
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>
16 years ago[netdrvr] 3c59x: remove irqs_disabled warning from local_bh_enable
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>
16 years agoipg: use NULL, not zero, for pointers
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>
16 years agoipg: fix jumbo frame compilation
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>
16 years agodrivers/net/r6040.c: Eliminate double sizeof
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>
16 years agopcnet_cs, axnet_cs: clear bogus interrupt before request_irq
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>
16 years agoe1000e: fix EEH recovery during reset on PPC
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>
16 years agoigb: fix EEH recovery during reset on PPC
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>
16 years agoixgbe: fix EEH recovery during reset on PPC
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>
16 years agotc35815: Fix receiver hangup on Rx FIFO overflow
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>
16 years agotc35815: Mark carrier-off before starting PHY
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>
16 years agos2io: fix documentation about intr_type
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>
16 years agoadm8211: remove unnecessary protected bit mask/check
Harvey Harrison [Sun, 22 Jun 2008 02:33:20 +0000 (19:33 -0700)]
adm8211: remove unnecessary protected bit mask/check

Removes now unused fc local var and uses the new ieee80211_hdrlen
which directly uses the le16 frame control value.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: add single function calling tx handlers
Johannes Berg [Thu, 19 Jun 2008 23:22:30 +0000 (01:22 +0200)]
mac80211: add single function calling tx handlers

This modifies mac80211 to only have a single function calling the
TX handlers rather than them being invoked in multiple places.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Remove "shm" and "ucode_regs" debugfs files
Michael Buesch [Thu, 19 Jun 2008 23:01:50 +0000 (01:01 +0200)]
b43: Remove "shm" and "ucode_regs" debugfs files

We don't need these two dump-files anymore, as we can easily do this
in userspace now.
Use b43-fwdump from the b43-tools repository to dump microcode registers.
Use "b43-fwdump -s" to dump SHM (or use -S to do a binary dump)

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Add mask/set capability to debugfs MMIO interface
Michael Buesch [Thu, 19 Jun 2008 17:38:32 +0000 (19:38 +0200)]
b43: Add mask/set capability to debugfs MMIO interface

This adds an atomic mask/set capability to the debugfs MMIO interface.
This is needed to support mask and/or set operations from the userspace
debugging tools.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Add debugfs files for random SHM access
Michael Buesch [Thu, 19 Jun 2008 17:33:51 +0000 (19:33 +0200)]
b43: Add debugfs files for random SHM access

This adds debugfs files for random SHM access.
This is needed in order to implement firmware and driver debugging
scripts in userspace.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43: Add debugfs files for MMIO register access
Michael Buesch [Wed, 18 Jun 2008 22:35:49 +0000 (00:35 +0200)]
b43: Add debugfs files for MMIO register access

This adds debugfs files for reading and writing arbitrary
wireless core registers. This is useful for debugging.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: use separate spinlock for sta flags
Johannes Berg [Wed, 18 Jun 2008 12:58:09 +0000 (14:58 +0200)]
mac80211: use separate spinlock for sta flags

David Ellingsworth posted a bug that was only noticable on UP/NO-PREEMPT
and Michael correctly analysed it to be a spin_lock_bh() section within
a spin_lock_irqsave() section. This adds a separate spinlock for the
sta_info flags to fix that issue and avoid having to take much care
about where the sta flag manipulation functions are called.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reported-By: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: remove shared key todo
Johannes Berg [Mon, 16 Jun 2008 18:55:29 +0000 (20:55 +0200)]
mac80211: remove shared key todo

Adding shared key authentication is not going to happen anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Release rt2x00 2.1.8
Ivo van Doorn [Mon, 16 Jun 2008 17:58:00 +0000 (19:58 +0200)]
rt2x00: Release rt2x00 2.1.8

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agort2x00: Increase queue size
Ivo van Doorn [Mon, 16 Jun 2008 17:57:40 +0000 (19:57 +0200)]
rt2x00: Increase queue size

Without the preallocated DMA we can now safely increase
the queue size withotu negative impact on the memory
requirements of rt2x00.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>