Commit graph

56374 commits

Author SHA1 Message Date
Steve Glendinning
01a1ac472f smsc95xx: remove unused completion struct
Oliver Neukum spotted the useless complete() in our async callback.  On
closer inspection, the entire completion struct is unused.  This patch
removes it.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-25 17:53:58 -08:00
Philipp Zabel
74194cc710 power_supply: pda_power: Don't request shared IRQs w/ IRQF_DISABLED
IRQF_DISABLED is not guaranteed for shared IRQs. I think power_changed_isr
doesn't need it anyway, as it only fires a timer.
This patch enables IRQF_SAMPLE_RANDOM instead.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2009-01-26 02:09:26 +03:00
Uwe Kleine-König
fb22d72782 [NET] am79c961a: fix spin_lock usage
spin_lock functions take a pointer to the lock, not the lock itself.
This error was noticed by compiling ebsa110_defconfig for linux-rt where
the locking functions obviously are more picky about their arguments.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Roel Kluin <12o3l@tiscali.nl>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 23:21:33 +00:00
Russell King
b7cfc9ca6a [ARM] omap: watchdog: allow OMAP watchdog driver on OMAP34xx platforms
The driver was updated for OMAP34xx, but the Kconfig file was missed.
So this adds the missing parts from d99241c in Tony Lindgren's tree:

    Add watchdog timer support for TI OMAP3430.

    Signed-off-by: Madhusudhan Chikkature <madhu.cr@ti.com>
    Signed-off-by: Tony Lindgren <tony@atomide.com>

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 16:48:42 +00:00
Madhusudhan Chikkature
a45c6cb816 [ARM] 5369/1: omap mmc: Add new omap hsmmc controller for 2430 and 34xx, v3
Add omap hsmmc controller for 2430 and 34xx.

Note that this controller has different registers compared to
the earlier omap MMC controller, so sharing code currently is
not possible.

Various updates and fixes from linux-omap list have been
merged into this patch.

Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:21 +00:00
Jean-Christop PLAGNIOL-VILLARD
02e0746ecc [ARM] 5370/1: at91: fix rm9200 watchdog
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:19 +00:00
Ramax Lo
7ad14f83d3 [ARM] 5365/1: s3cmci: Use new include path of dma.h
Since dma.h has been moved to arch/arm/mach-s3c2410/include/mach,
use the new include path.

Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:18 +00:00
Russell King
953a7e8476 [ARM] omap: ensure OMAP drivers pass a struct device to clk_get()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:16 +00:00
Larry Finger
2fcbab044a rtl8187: Add termination packet to prevent stall
The RTL8187 and RTL8187B devices can stall unless an explicit termination
packet is sent.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-23 15:38:36 -05:00
Abbas, Mohamed
c338ba3ca5 iwlwifi: fix rs_get_rate WARN_ON()
In ieee80211_sta structure there is u64 supp_rates[IEEE80211_NUM_BANDS]
this is filled with all support rate from assoc_resp.  If we associate
with G-band AP only supp_rates of G-band will be set the other band
supp_rates will be set to 0. If the user type this command
this will cause mac80211 to set to new channel, mac80211
does not disassociate in setting new channel, so the active
band is now A-band. then in handling the new essid mac80211 will
kick in the assoc steps which involve sending disassociation frame.
in this mac80211 will WARN_ON sta->supp_rates[A_BAND] == 0.

This fixes:
http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1822
http://www.kerneloops.org/searchweek.php?search=rs_get_rate

Signed-off-by: mohamed abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-23 15:38:36 -05:00
Christian Lamparter
b4068a8049 p54usb: fix packet loss with first generation devices
Artur Skawina confirmed that the first generation devices needs the same
URB_ZERO_PACKET flag, in oder to finish the pending transfer properly.
The second generation has been successfully fixed by
"p54usb: fix random traffic stalls (LM87)" (43af18f06d5)

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-23 15:38:35 -05:00
Ian Campbell
ff4ce8c332 xen: handle highmem pages correctly when shrinking a domain
Commit 1058a75f07 ("xen: actually release
memory when shrinking domain") causes a crash if the page being released
is a highmem page.

If a page is highmem then there is no need to unmap it.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-23 18:55:28 +01:00
Jesse Brandeburg
92af3e95e4 e1000e: drop lltx, remove unnecessary lock
LLTX is deprecated and complicated, don't use it.  It was observed by Don Ash
<donash4@gmail.com> that e1000e was acquiring this lock in the NAPI cleanup
path.  This is obviously a bug, as this is a leftover from when e1000
supported multiple tx queues and fake netdevs.

another user reported this to us and tested routing with the 2.6.27 kernel and
this patch and reported a 3.5 % improvement in packets forwarded in a
multi-port test on 82571 parts.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 23:38:12 -08:00
Dan Magenheimer
1058a75f07 xen: actually release memory when shrinking domain
Fix this:

> It appears that in the upstream balloon driver,
> the call to HYPERVISOR_update_va_mapping is missing
> from decrease_reservation.  I think as a result,
> the balloon driver is eating memory but not
> releasing it to Xen, thus rendering the balloon
> driver essentially useless.  (Can be observed via xentop.)

Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-22 23:41:44 +01:00
Steve Glendinning
c64d2a9afb phy: Add suspend/resume support to SMSC PHYs
All supported SMSC PHYs implement the standard "power down" bit 11 of
BMCR, so this patch adds support using the generic genphy_{suspend,resume}
functions.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 14:07:43 -08:00
Florian Fainelli
5ef3041e4a au1000: reorder functions
This patch reorders functions so that we do longer need
forward declarations.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 14:06:25 -08:00
Cyrill Gorcunov
e35fac80ed net: pppoe - get rid of DECLARE_MAC_BUF
While was playing with PPP namespaces I occasionally brought
back DECLARE_MAC_BUF which is not needed (we have %pM here).
Fix it.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:52:26 -08:00
Anton Vorontsov
6f051069d8 phylib: Fix oops in suspend/resume paths
Suspend/resume routines check for phydrv != NULL, but that is
wrong because "phydrv" comes from container_of(drv). If drv is NULL,
then container_of(drv) will return non-NULL result, and the checks
won't work.

The Freescale TBI PHYs are driver-less, so "drv" is NULL, and that
leads to the following oops:

Unable to handle kernel paging request for data at address 0xffffffe4
Faulting instruction address: 0xc0215554
Oops: Kernel access of bad area, sig: 11 [#1]
[...]
NIP [c0215554] mdio_bus_suspend+0x34/0x70
LR [c01cc508] suspend_device+0x258/0x2bc
Call Trace:
[cfad3da0] [cfad3db8] 0xcfad3db8 (unreliable)
[cfad3db0] [c01cc508] suspend_device+0x258/0x2bc
[cfad3dd0] [c01cc62c] dpm_suspend+0xc0/0x140
[cfad3e20] [c01cc6f4] device_suspend+0x48/0x5c
[cfad3e40] [c0068dd8] suspend_devices_and_enter+0x8c/0x148
[cfad3e60] [c00690f8] enter_state+0x100/0x118
[cfad3e80] [c00691c0] state_store+0xb0/0xe4
[cfad3ea0] [c018c938] kobj_attr_store+0x24/0x3c
[cfad3eb0] [c00ea9a8] flush_write_buffer+0x58/0x7c
[cfad3ed0] [c00eadf0] sysfs_write_file+0x58/0xa0
[cfad3ef0] [c009e810] vfs_write+0xb4/0x16c
[cfad3f10] [c009ed40] sys_write+0x4c/0x90
[cfad3f40] [c0014954] ret_from_syscall+0x0/0x38
[...]

This patch fixes the issue, plus removes unneeded parentheses
and fixes indentation level in mdio_bus_suspend().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:51:24 -08:00
Eilon Greenstein
5422a22573 bnx2x: Version
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:47:13 -08:00
Eilon Greenstein
3910c8ae44 bnx2x: loopback test failure
A link change interrupt might be queued and activated after the loopback was set
and it will cause the loopback to fail. The PHY lock should be kept until the
loopback test is over.

That implies that the bnx2x_test_link should used within the loopback function
and not bnx2x_wait_for_link since that function also takes the PHY link

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:47:12 -08:00
Eilon Greenstein
5650d9d4cb bnx2x: Missing rmb when waiting for FW response
Waiting for the FW to response requires a memory barrier

Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:47:12 -08:00
Eilon Greenstein
7cde1c8b79 bnx2x: Calling napi_del
rmmod might hang without this patch since the reference counter is not going
down

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:47:11 -08:00
Eilon Greenstein
6eccabb301 bnx2x: Carrier off first call
Call carrier off should not be called after register_netdev since after
register netdev open can be called at any time followed by an interrupt that
will set it to carrier_on and the probe will resume control and set it to off

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:45:06 -08:00
Eilon Greenstein
2dfe0e1fec bnx2x: Handling load failures
Failures on load were not handled correctly - separate the flow to handle

different failures

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:45:06 -08:00
Eilon Greenstein
e94d8af3da bnx2x: Disable napi
Calling napi disabled unconditionally at netif stop

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:45:05 -08:00
Eilon Greenstein
81f75bbf67 bnx2x: Reset HW before use
To avoid complications, make sure that the HW is in reset (as it should be)
before trying to take it out of reset. In normal flows, the HW is indeed in rest
so this should have no effect

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22 13:45:05 -08:00
Reinette Chatre
637f883739 iwlwifi: return NETDEV_TX_OK from _tx ops
be consistent with mac80211 drivers and return correct return code.
NETDEV_TX_OK is 0, but we need to be consistent wrt formatting amongst
implementations

re: http://marc.info/?l=linux-wireless&m=123119327419865&w=2

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:03 -05:00
Hin-Tak Leung
de2624966f zd1211rw: adding Sitecom WL-603 (0df6:0036) to the USB id list
Giuseppe Cala <jiveaxe@gmail.com> (The second "a" in "Cala" should be
a grave, U+00E0) reported success on zd1211-devs@lists.sourceforge.net.
The chip info is:
zd1211b chip 0df6:0036 v4810 high 00-0c-f6 AL2230_RF pa0 g--N-

The Sitecom WL-603 is detected as a zd1211b with a AL2230 RF transceiver chip.

Signed-off-by: Giuseppe Cala <jiveaxe@gmail.com>
Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:03 -05:00
Christian Lamparter
e2fe154e91 p54usb: fix nasty use after free
In theory, the firmware acks the received a data frame, before signaling the driver to free it again.
However Artur Skawina <art.08.09@gmail.com> has shown that it can happen in reverse order as well.
This is very bad and could lead to memory corruptions, oopses and panics.

Thanks to Artur Skawina <art.08.09@gmail.com> for reporting and debugging this issue.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Tested-by: Artur Skawina <art.08.09@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:02 -05:00
Christian Lamparter
12da401e0d p54: more cryptographic accelerator fixes
If we let the firmware do the data encryption, we have to remove the ICV and
(M)MIC at the end of the frame before we can give it back to mac80211.
Or, these data frames have a few trailing bytes on cooked monitor interfaces.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:02 -05:00
Chr
40ab73cc6c p54: add missing break in eeprom parser
This patch fixes a obvious memory leak in the eeprom parser.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:02 -05:00
Pavel Roskin
11eaea4167 orinoco: use KERN_DEBUG for link status messages
KERN_INFO is too "loud" for messages that are generated by the ordinary
events, such as accociation.  Use of KERN_DEBUG is consistent with
mac80211.

Suggested by Michael Gilbert <michael.s.gilbert@gmail.com>

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:01 -05:00
Ivo van Doorn
7490889c10 rt2x00: Fix TX rate short preamble detection
Mac80211 provides 2 structures to handle bitrates, namely
ieee80211_rate and ieee80211_tx_rate. To determine the short preamble
mode for an outgoing frame, the flag IEEE80211_TX_RC_USE_SHORT_PREAMBLE
must be checked on ieee80211_tx_rate and not ieee80211_rate (which rt2x00 did).

This fixes a regression which was triggered in 2.6.29-rcX as reported by Chris Clayton.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Tested-By: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:01 -05:00
Andrey Borzenkov
7fe99c4e28 orinoco: move kmalloc(..., GFP_KERNEL) outside spinlock in orinoco_ioctl_set_genie
[   56.923623] BUG: sleeping function called from invalid context at /home/bor/src/linux-git/mm/slub.c:1599
[   56.923644] in_atomic(): 0, irqs_disabled(): 1, pid: 3031, name: wpa_supplicant
[   56.923656] 2 locks held by wpa_supplicant/3031:
[   56.923662]  #0:  (rtnl_mutex){--..}, at: [<c02abd1f>] rtnl_lock+0xf/0x20
[   56.923703]  #1:  (&priv->lock){++..}, at: [<dfc840c2>] orinoco_ioctl_set_genie+0x52/0x130 [orinoco]
[   56.923782] irq event stamp: 910
[   56.923788] hardirqs last  enabled at (909): [<c01957db>] __kmalloc+0x7b/0x140
[   56.923820] hardirqs last disabled at (910): [<c0309419>] _spin_lock_irqsave+0x19/0x80
[   56.923847] softirqs last  enabled at (880): [<c0124f54>] __do_softirq+0xc4/0x110
[   56.923865] softirqs last disabled at (871): [<c01049ae>] do_softirq+0x8e/0xe0
[   56.923895] Pid: 3031, comm: wpa_supplicant Not tainted 2.6.29-rc2-1avb #1
[   56.923905] Call Trace:
[   56.923919]  [<c01049ae>] ? do_softirq+0x8e/0xe0
[   56.923941]  [<c011ad12>] __might_sleep+0xd2/0x100
[   56.923952]  [<c0195837>] __kmalloc+0xd7/0x140
[   56.923963]  [<c030946a>] ? _spin_lock_irqsave+0x6a/0x80
[   56.923981]  [<dfc840e9>] ? orinoco_ioctl_set_genie+0x79/0x130 [orinoco]
[   56.923999]  [<dfc840c2>] ? orinoco_ioctl_set_genie+0x52/0x130 [orinoco]
[   56.924017]  [<dfc840e9>] orinoco_ioctl_set_genie+0x79/0x130 [orinoco]
[   56.924036]  [<c0209325>] ? copy_from_user+0x35/0x130
[   56.924061]  [<c02ffd96>] ioctl_standard_call+0x196/0x380
[   56.924085]  [<c029f945>] ? __dev_get_by_name+0x85/0xb0
[   56.924096]  [<c02ff88f>] wext_handle_ioctl+0x14f/0x230
[   56.924113]  [<dfc84070>] ? orinoco_ioctl_set_genie+0x0/0x130 [orinoco]
[   56.924132]  [<c02a3da5>] dev_ioctl+0x495/0x570
[   56.924155]  [<c0293e05>] ? sys_sendto+0xa5/0xd0
[   56.924171]  [<c0142fe8>] ? mark_held_locks+0x48/0x90
[   56.924183]  [<c0292880>] ? sock_ioctl+0x0/0x280
[   56.924193]  [<c029297d>] sock_ioctl+0xfd/0x280
[   56.924203]  [<c0292880>] ? sock_ioctl+0x0/0x280
[   56.924235]  [<c01a51d0>] vfs_ioctl+0x20/0x80
[   56.924246]  [<c01a53e2>] do_vfs_ioctl+0x72/0x570
[   56.924257]  [<c0293e62>] ? sys_send+0x32/0x40
[   56.924268]  [<c02947c0>] ? sys_socketcall+0x1d0/0x2a0
[   56.924280]  [<c010339f>] ? sysenter_exit+0xf/0x16
[   56.924292]  [<c01a5919>] sys_ioctl+0x39/0x70
[   56.924302]  [<c0103371>] sysenter_do_call+0x12/0x31

Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-22 13:55:01 -05:00
Jesse Barnes
2906f02587 drm/i915: Fix cursor physical address choice to match the 2D driver.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-01-22 22:29:03 +10:00
Eric Anholt
1bb88edb7a drm: stash AGP include under the do-we-have-AGP ifdef
This fixes the MIPS with DRM build.

Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-01-22 22:27:11 +10:00
Jesse Barnes
4942f8b23b drm: don't whine about not reading EDID data
Make this message a little quieter, since it's common and not necessarily
indicative of a problem.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-01-22 22:23:53 +10:00
Jesse Barnes
335041ed31 drm/i915: hook up LVDS DPMS property
The LVDS output supports DPMS calls, but we never hooked up the property code,
so set property calls didn't actually do anything.  Implement a set_property
callback for the LVDS output so that the right thing happens.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-01-22 22:22:06 +10:00
Jesse Barnes
ed2dd4b0cc drm/i915: remove unnecessary debug output in KMS init
We don't really need to print out the FB BAR...

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-01-22 22:21:16 +10:00
Thomas Gleixner
6552ebae25 Merge branch 'core/debugobjects' into core/urgent 2009-01-22 10:03:02 +01:00
Dave Airlie
260883c856 i915: fix freeing path for gem phys objects.
This off-by-one was pointed out by Jesse Barnes.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-01-22 17:58:49 +10:00
Jesse Barnes
ad2563c2e4 drm: create mode_config idr lock
Create a separate mode_config IDR lock for simplicity.  The core DRM
config structures (connector, mode, etc. lists) are still protected by
the mode_config mutex, but the CRTC IDR (used for the various identifier
IDs) is now protected by the mode_config idr_mutex.  Simplifies the
locking a bit and removes a warning.

All objects are protected by the config mutex, we may in the future,
split the object further to have reference counts.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-01-22 17:53:05 +10:00
Eric W. Biederman
f019a7a594 tun: Implement ip link del tunXXX
This greatly simplifies testing to verify I have fixed the problems
with a tun device disappearing when the tun file descriptor is still
held open.

Further it allows removal network namespace operations for the tun
driver.  Reducing the network namespace handling in the driver to the
minimum.  i.e. When we are creating a tun device.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:02:16 -08:00
Eric W. Biederman
aec191aa2a tun: There is no longer any need to deny changing network namespaces
With the awkward case between free_netdev and dev_chr_close fixed
there is no longer any need to limit tun and tap devices to the
network namespace they were created in.  So remove the
NETIF_F_NETNS_LOCAL flag on the network device.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:47 -08:00
Eric W. Biederman
c70f182940 tun: Fix races between tun_net_close and free_netdev.
The tun code does not cope gracefully if the network device goes away before
the tun file descriptor is closed.  It looks like we can trigger this with
rmmod, and moving tun devices between network namespaces will allow this
to be triggered when network namespaces exit.

To fix this I introduce an intermediate data structure tun_file which
holds a count of users and a pointer to the struct tun_struct.  tun_get
increments that reference count if it is greater than 0.  tun_put decrements
that reference count and detaches from the network device if the count is 0.

While we have a file attached to the network device I hold a reference
to the network device keeping it from going away completely.

When a network device is unregistered I decrement the count of the
attached tun_file and if that was the last user I detach the tun_file,
and all processes on read_wait are woken up to ensure they do not
sleep indefinitely. As some of those sleeps happen with the count on
the tun device elevated waking up the read waiters ensures that
tun_file will be detached in a timely manner.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:46 -08:00
Eric W. Biederman
b2430de37e tun: Move read_wait into tun_file
The poll interface requires that the waitqueue exist while the struct
file is open.  In the rare case when a tun device disappears before
the tun file closes we fail to provide this property, so move
read_wait.

This is safe now that tun_net_xmit is atomic with tun_detach.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:46 -08:00
Eric W. Biederman
38231b7a8d tun: Make tun_net_xmit atomic wrt tun_attach && tun_detach
Currently this small race allows for a packet to be received when we
detach from an tun device and still be enqueued.  Not especially
important but not what the code is trying to do.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:45 -08:00
Eric W. Biederman
36b50bab53 tun: Grab the netns in open.
Grabbing namespaces in open, and putting them in close always seems to
be the cleanest approach with the fewest surprises.

So now that we have tun_file so we have somepleace to put the network
namespace, let's grab the network namespace on file open and put on
file close.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:45 -08:00
Eric W. Biederman
631ab46b79 tun: Introduce tun_file
Currently the tun code suffers from only having a single word of
data that exists for the entire life of the tun file descriptor.

This results in peculiar holding of references to the network namespace
as well as races between free_netdevice and tun_chr_close.

Fix this by introducing tun_file which will hold the per file state.
For the moment it still holds just a single word so the differences
are all logic changes with no changes in semantics.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:44 -08:00
Eric W. Biederman
eac9e90265 tun: Use POLLERR not EBADF in tun_chr_poll
EBADF is meaningless in the context of a poll mask so use POLLERR
instead.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:44 -08:00
Eric W. Biederman
a7385ba211 tun: Fix races in tun_set_iff
It is possible for two different tasks with access to the same file
descriptor to call tun_set_iff on it at the same time and race to
attach to a tap device.  Prevent this by placing all of the logic to
attach to a file descriptor in one function and testing the file
descriptor to be certain it is not already attached to another tun
device.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:43 -08:00
Eric W. Biederman
74a3e5a71c tun: Remove unnecessary tun_get_by_name
Currently the tun driver keeps a private list of tun devices for what
appears to be a small gain in performance when reconnecting a file
descriptor to an existing tun or tap device.  So simplify the code by
removing it.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 16:00:43 -08:00
Cyrill Gorcunov
f5882c3050 net: pppoe,pppol2tp - register channels with explicit net
In PPPo[E|L2TP] we could explicitly point which net namespace
we're going to use for channels - make it so.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 15:55:40 -08:00
Cyrill Gorcunov
273ec51dd7 net: ppp_generic - introduce net-namespace functionality v2
- Each namespace contains ppp channels and units separately
  with appropriate locks

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 15:55:35 -08:00
Cyrill Gorcunov
4e9fb8016a net: pppol2tp - introduce net-namespace functionality
- Each tunnel and appropriate lock are inside own namespace now.
- pppox code allows to create per-namespace sockets for
  both PX_PROTO_OE and PX_PROTO_OL2TP protocols. Actually since
  now pppox_create support net-namespaces new PPPo... protocols
  (if they ever will be) should support net-namespace too otherwise
  explicit check for &init_net would be needed.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 15:55:15 -08:00
Cyrill Gorcunov
a6bcf1c1d3 net: pppoe - introduce net-namespace functionality
- each net-namespace for pppoe module is having own
  hash table and appropriate locks wich are allocated
  at time of namespace intialization. It requires about
  140 bytes of memory for every new namespace but such
  approach allow us to escape from hash chains growing
  and additional lock contends (especially in SMP environment).

- pppox code allows to create per-namespace sockets for
  PX_PROTO_OE protocol only (since at this moment support
  for pppol2tp net-namespace is not implemented yet).

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 15:54:54 -08:00
Cyrill Gorcunov
6aba915881 net: pppoe - code cleanup and helpers
- Introduce PPPOE_HASH_MASK.
- Remove redundant declaration of pppoe_chan_ops.
- Introduce stage_session helper.
- Tabs, space, long-line-split cleanup.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 15:54:15 -08:00
Thomas Klein
e287880622 ehea: Improve driver behaviour in low mem conditions
Reworked receive queue fill policies to make the driver more tolerant
in low memory conditions.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:45:57 -08:00
Thomas Klein
3faf2693bd ehea: Fix mem allocations which require page alignment
PAGE_SIZE allocations via slab are not guaranteed to be page-aligned. Fixed
all memory allocations where page alignment is required by firmware.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:45:33 -08:00
Thomas Klein
086c1b2c52 ehea: Use net_device_ops structure
Adapt to lately introduced net_device_ops structure.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:43:59 -08:00
Alexander Duyck
8017943e6b e1000: drop lltx, remove unnecessary lock
LLTX is deprecated, don't use it.  This completes the removal of LLTX from
the Intel Network drivers.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:42:47 -08:00
Alexander Duyck
921aa74912 igb: make certain to power on optics for 82576 fiber nics
It appears that a step was missed in the initialization of 82576 fiber nics
that resulted in it not powering on the optics.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:42:28 -08:00
Alexander Duyck
5851765cca igb: igb should not flag lltx
Igb has flags enabling lltx but this is a holdover from the earlier
e1000 driver which the igb driver was based off of.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:42:07 -08:00
Harvey Harrison
52d07b1f50 bnx2: annotate bp->phy_lock functions
It looks like the locking is OK as the locks were being taken before the
various phy setup functions, add the annotations as they release and
reacquire the phy_lock.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:39:26 -08:00
Herbert Xu
7be2df451f cxgb3: Replace LRO with GRO
This patch makes cxgb3 invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

I've kept the ioctl controls for per-queue LRO switches.  However,
we should not encourage anyone to use these.

Because of that, I've also kept the skb construction code in
cxgb3.  Hopefully we can phase out those per-queue switches
and then kill this too.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:39:13 -08:00
Roel Kluin
57a574993d phylib: unsigneds go unnoticed
both pdata->mdc and pdata->mdio are unsigned. Notice a negative
return value.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:53 -08:00
Mark McLoughlin
9f4d26d0f3 virtio_net: add link status handling
Allow the host to inform us that the link is down by adding
a VIRTIO_NET_F_STATUS which indicates that device status is
available in virtio_net config.

This is currently useful for simulating link down conditions
(e.g. using proposed qemu 'set_link' monitor command) but
would also be needed if we were to support device assignment
via virtio.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added future masking)
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:53 -08:00
Vernon Sauder
357fe2c6d2 smc91x: enable ethtool EEPROM interface
Signed-off-by: Vernon Sauder <vsauder@inhand.com>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:52 -08:00
Masakazu Mokuno
31e2b7bd21 PS3: gelic: wireless: convert the wireless part to net_device_ops
Convert the gelic wireless driver to net_device_ops

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:52 -08:00
Masakazu Mokuno
5384e8361a PS3: gelic: convert the ethernet part to net_device_ops
Convert the gelic driver to net_device_ops

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:51 -08:00
Francois Romieu
3d16543d32 tg3: remove extra casting
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:31 -08:00
Herbert Xu
5c0999b72b igb: Replace LRO with GRO
This patch makes igb invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

Three things of note:

1) I've kept the LRO Kconfig option until we decide to enable
GRO across the board at which point it can also be killed.

2) The poll_controller stuff is broken in igb as it tries to do
the same work as the normal poll routine.  Since poll_controller
can be called in the middle of a poll, this can't be good.

I noticed this because poll_controller can invoke the GRO hooks
without flushing held GRO packets.

However, this should be harmless (assuming the poll_controller
bug above doesn't kill you first :) since the next ->poll will
clear the backlog.  The only time when we'll have a problem is
if we're already executing the GRO code on the same ring, but
that's no worse than what happens now.

3) I kept the ip_summed check before calling GRO so that we're
on par with previous behaviour.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:30 -08:00
Harvey Harrison
649aa95d75 typhoon: replace users of __constant_{endian}
The base versions handle constant folding just fine, use them
directly.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:08 -08:00
Herbert Xu
da3bc07171 sfc: Replace LRO with GRO
This patch makes sfc invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

Everything should appear identical to the user except that the
offload is now controlled by the GRO ethtool option instead of
LRO.  I've kept the lro module parameter as is since that's for
compatibility only.

I have eliminated efx_rx_mk_skb as the GRO layer can take care
of all packets regardless of whether GRO is enabled or not.

So the only case where we don't call GRO is if the packet checksum
is absent.  This is to keep the behaviour changes of the patch to
a minimum.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:06 -08:00
Herbert Xu
78b6f4ce58 ixgbe: Replace LRO with GRO
This patch makes ixgbe invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

As GRO uses the napi structure to track the held packets, I've
modified the code paths involved to pass that along.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:06 -08:00
Divy Le Ray
5cda9364f1 cxgb3: ease msi-x settings conditions
The driver currently drops to line interrupt mode
if it did not get all the msi-x vectors it requested.

Allow msi-x settings when a minimal amount of vectors
is provided.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:03 -08:00
Herbert Xu
c405b82816 e1000e: Invoke VLAN GRO handler
Now that VLAN has GRO support as well, we can call its GRO handler
as well.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:34:03 -08:00
Ben Hutchings
288379f050 net: Remove redundant NAPI functions
Following the removal of the unused struct net_device * parameter from
the NAPI functions named *netif_rx_* in commit 908a7a1, they are
exactly equivalent to the corresponding *napi_* functions and are
therefore redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:33:50 -08:00
Cesar Eduardo Barros
627af770c6 sc92031: add a link to the datasheet
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:42 -08:00
Cesar Eduardo Barros
5ec99fdf8e sc92031: use device id directly instead of made-up name
Instead of making up a name for the device ids, put them directly in the
device id table. Also move the vendor id to pci_ids.h.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:41 -08:00
Cesar Eduardo Barros
f08d7c36cc sc92031: inline SC92031_DESCRIPTION
SC92031_DESCRIPTION is only used in one place.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:39 -08:00
Cesar Eduardo Barros
3230d2b00e sc92031: remove meaningless version string
The version string makes no sense anymore, since this driver is only
maintained within the kernel.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:38 -08:00
Cesar Eduardo Barros
eb5c8bc144 sc92031: more useful banner in kernel log
The banner currently printed when loading the module is mostly useless.

Replace it with a more informative one, printed after probing the device.

Output format copied from 8139cp/8139too.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:38 -08:00
Jan Engelhardt
4101dec9ca net: constify VFTs
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:37 -08:00
Krzysztof Hałasa
991990a12d WAN: Convert generic HDLC drivers to netdev_ops.
Also remove unneeded last_rx update from Synclink drivers.
Synclink part mostly by Stephen Hemminger.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:37 -08:00
Krzysztof Hałasa
dff3fde7be WAN: Allow hw HDLC drivers to override dev->get_stats.
Use the internal get_stats() by default.
Fixes LMC and wanXL drivers.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:36 -08:00
Krzysztof Hałasa
7cdc15f5f9 WAN: Generic HDLC now uses IFF_WAN_HDLC private flag.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:35 -08:00
Inaky Perez-Gonzalez
a962dc2520 wimax/i2400m: convert to net_device_ops
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:03:35 -08:00
Frank Blaschka
2171dc1815 claw: convert to net_device_ops
claw convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:44 -08:00
Frank Blaschka
4edd73b5cf netiucv: convert to net_device_ops
netiucv convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:43 -08:00
Frank Blaschka
69b3aa609c ctcm: convert to net_device_ops
ctcm convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:42 -08:00
Frank Blaschka
0e0b46d80f lcs: convert to net_device_ops
lcs convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:41 -08:00
Stephen Hemminger
ba270ede10 dmascc: convert to internal net_device_ops
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:41 -08:00
Stephen Hemminger
6095e08126 dmascc: convert to net_device_ops
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:40 -08:00
Stephen Hemminger
ddbe9a6868 mkiss: convert to internal network device stats
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:40 -08:00
Stephen Hemminger
ff908cf834 scc: convert to internal net_device_ops
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:39 -08:00
Stephen Hemminger
3f75f7482f yam: convert to net_device_ops
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:39 -08:00
Stephen Hemminger
3c94acb7ee yam: convert to internal net_device_stats
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:38 -08:00
Stephen Hemminger
2d8b223d81 hdlcdrv: convert to net_device_ops
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:38 -08:00
Stephen Hemminger
5a7616af60 hdlcdrv: convert to internal net_device_stats
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 14:02:36 -08:00