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2008-01-20[NET]: rtnl_link: fix use-after-freePatrick McHardy1-13/+1
When unregistering the rtnl_link_ops, all existing devices using the ops are destroyed. With nested devices this may lead to a use-after-free despite the use of for_each_netdev_safe() in case the upper device is next in the device list and is destroyed by the NETDEV_UNREGISTER notifier. The easy fix is to restart scanning the device list after removing a device. Alternatively we could add new devices to the front of the list to avoid having dependant devices follow the device they depend on. A third option would be to only restart scanning if dev->iflink of the next device matches dev->ifindex of the current one. For now this seems like the safest solution. With this patch, the veth rtnl_link_ops unregistration can use rtnl_link_unregister() directly since it now also handles destruction of multiple devices at once. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-20[ATM] atm/suni.c: Fix section mismatch.Adrian Bunk1-1/+1
EXPORT_SYMBOL'ed code mustn't be __*init. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-20[ATM] atm/idt77105.c: Fix section mismatch.Adrian Bunk1-1/+1
EXPORT_SYMBOL'ed code mustn't be __*init. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-20[NET]: Fix interrupt semaphore corruption in Intel drivers.David S. Miller4-4/+11
Several of the Intel ethernet drivers keep an atomic counter used to manage when to actually hit the hardware with a disable or an enable. The way the net_rx_work() breakout logic works during a pending napi_disable() is that it simply unschedules the poll even if it still has work. This can potentially leave interrupts disabled, but that is OK because all of the drivers are about to disable interrupts anyways in all such code paths that do a napi_disable(). Unfortunately, this trips up the semaphore used here in the Intel drivers. If you hit this case, when you try to bring the interface back up it won't enable interrupts. A reload of the driver module fixes it of course. So what we do is make sure all the sequences now go: napi_disable(); atomic_set(&adapter->irq_sem, 0); *_irq_disable(); which makes sure the counter is always in the correct state. Reported by Robert Olsson. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-19Remove bogus duplicate CONFIG_LGUEST_GUEST entry.Rusty Russell1-7/+0
It was moved to arch/x86/lguest/Kconfig, but I lost the deletion part in a patch suffle. My confused one-liner "fix" to turn it on is also reverted: 84f7466ee20cc094aa38617abfa2f3834871f054 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-19pata_pdc202xx_old: Fix crashes with ATAPIAlan Cox1-0/+19
The PDC202xx older devices do not support ATAPI DMA via the usual interfaces. What documentation I have isn't sufficient to support DMA and it isn't clear if the Windows drivers do this or it is possible at all. (Neither do the drivers/ide old drivers) So turn it ATAPI DMA off, these are disk optimised controllers. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-19Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds1-22/+22
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/ipath: Fix receiving UD messages with immediate data
2008-01-18Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6Linus Torvalds23-481/+383
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (31 commits) Replace cpmac fix dl2k: the rest dl2k: MSCR, MSSR, ESR, PHY_SCR fixes dl2k: BMSR fixes dl2k: ANAR, ANLPAR fixes dl2k: BMCR_t fixes 3c574, 3c515 bitfields abuse sbni endian fixes wan/lmc bitfields fixes dscc4 endian fixes S2io: Fixed synchronization between scheduling of napi with card reset and close atl1: fix frame length bug Documentation: add a guideline for hard_start_xmit method Revert "sky2: remove check for PCI wakeup setting from BIOS" e1000e Kconfig: remove ref to nonexistant docs bonding: Don't hold lock when calling rtnl_unlock bonding: fix lock ordering for rtnl and bonding_rwsem bonding: Fix up parameter parsing bonding: release slaves when master removed via sysfs bonding: fix locking during alb failover and slave removal ...
2008-01-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds1-3/+1
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] clarify watchdog operation in documentation [WATCHDOG] Revert "Stop looking for device as soon as one is found"
2008-01-18Selecting LGUEST should turn on Guest support, as in 2.6.23.Rusty Russell1-2/+2
There's currently no way to turn on Lguest guest support; the planned Kconfig virtualization reorg didn't get into 2.6.25. This was unnoticed because if you already had CONFIG_LGUEST_GUEST=y in your config, it worked. Too bad about new users... Also, the Kconfig help was wrong now the virtio drivers are merged. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-18[WATCHDOG] Revert "Stop looking for device as soon as one is found"Wim Van Sebroeck1-3/+1
This reverts commit 3ff6eb4a2fe5757cbe7c5d57c8eb60ab0775f2f0. the !found check in the for loop allready made sure that only one device was found. Signed-Off-By: Pádraig Brady <P@draigBrady.com> Signed-Off-By: Wim Van Sebroeck <wim@iguana.be>
2008-01-18Replace cpmac fixMatteo Croce1-1/+1
Please apply this patch since i reverted by mistake the commit 4e3ab47a547616e583c7a5458beced6aa34c8ef3 in 6cd043d99dcf5d252fcc682958541f449113f7b3 Signed-off-by: Matteo Croce <technoboy85@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18dl2k: the restAl Viro2-15/+4
remove an unused union-with-bitfield of the same sort, add missing conversions in debugging printk Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18dl2k: MSCR, MSSR, ESR, PHY_SCR fixesAl Viro2-58/+22
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18dl2k: BMSR fixesAl Viro2-38/+16
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18dl2k: ANAR, ANLPAR fixesAl Viro2-98/+42
same story, different registers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18dl2k: BMCR_t fixesAl Viro2-61/+32
broken use of bitfields; FUBAR on big-endian (and not valid C, strictly speaking). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-183c574, 3c515 bitfields abuseAl Viro2-43/+48
wn3_config is shared by these cards; the way we deal with it is both bad C (union abuse) and broken on big-endian. For 3c515 it's less serious (ISA cards are quite rare outside of little-endian boxen), but 3c574 is a pcmcia one and that'd better be endian-independent... Fix is the same in both cases. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18sbni endian fixesAl Viro1-3/+9
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18wan/lmc bitfields fixesAl Viro1-10/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18dscc4 endian fixesAl Viro1-45/+49
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18S2io: Fixed synchronization between scheduling of napi with card reset and closeSreenivasa Honnur1-5/+12
- Fixed synchronization between scheduling of napi with card reset and close by moving the enabling and disabling of napi to card up and card down functions respectively instead of open and close. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18atl1: fix frame length bugJay Cliburn1-4/+4
The driver sets up the hardware to accept a frame with max length equal to MTU + Ethernet header + FCS + VLAN tag, but we neglect to add the VLAN tag size to the ingress buffer. When a VLAN-tagged frame arrives, the hardware passes it, but bad things happen because the buffer is too small. This patch fixes that. Thanks to David Harris for reporting the bug and testing the fix. Tested-by: David Harris <david.harris@cpni-inc.com> Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18Revert "sky2: remove check for PCI wakeup setting from BIOS"Stephen Hemminger1-5/+19
This reverts commit 84cd2dfb04d23a961c5f537baa243fa54d0987ac. Some BIOS's break if Wake On Lan is enabled, and the machine can't boot. Better to have some user's have to call ethtool to enable WOL than to break a single user's boot. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixesJeff Garzik6-12/+24
2008-01-18e1000e Kconfig: remove ref to nonexistant docsJason Uhlenkott1-3/+0
There is no Documentation/networking/e1000e.txt. Signed-off-by: Jason Uhlenkott <jasonuhl@jasonuhl.org> Cc: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18Merge branch 'ipg-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6 into upstream-fixesJeff Garzik1-24/+12
2008-01-18bonding: Don't hold lock when calling rtnl_unlockJay Vosburgh1-1/+3
Change bond_mii_monitor to not hold any locks when calling rtnl_unlock, as rtnl_unlock can sleep (when acquring another mutex in netdev_run_todo). Bug reported by Makito SHIOKAWA <mshiokawa@miraclelinux.com>, who included a different patch. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18bonding: fix lock ordering for rtnl and bonding_rwsemJay Vosburgh2-27/+35
Fix the handling of rtnl and the bonding_rwsem to always be acquired in a consistent order (rtnl, then bonding_rwsem). The existing code sometimes acquired them in this order, and sometimes in the opposite order, which opens a window for deadlock between ifenslave and sysfs. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18bonding: Fix up parameter parsingJay Vosburgh3-12/+23
A recent change to add an additional hash policy modified bond_parse_parm, but it now does not correctly match parameters passed in via sysfs. Rewrote bond_parse_parm to handle (a) parameter matches that are substrings of one another and (b) user input with whitespace (e.g., sysfs input often has a trailing newline). Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18bonding: release slaves when master removed via sysfsJay Vosburgh1-3/+1
Add a call to bond_release_all in the bonding netdev event handler for the master. This releases the slaves for the case of, e.g., "echo -bond0 > /sys/class/net/bonding_masters", which otherwise will spin forever waiting for references to be released. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18bonding: fix locking during alb failover and slave removalJay Vosburgh2-12/+20
alb_fasten_mac_swap (actually rlb_teach_disabled_mac_on_primary) requries RTNL and no other locks. This could cause dev_set_promiscuity and/or dev_set_mac_address to be called with improper locking. Changed callers to hold only RTNL during calls to alb_fasten_mac_swap or functions calling it. Updated header comments in affected functions to reflect proper reality of locking requirements. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18bonding: fix ASSERT_RTNL that produces spurious warningsJay Vosburgh1-3/+2
Move an ASSERT_RTNL down to where we should hold only RTNL; the existing check produces spurious warnings because we hold additional locks at _bh, tripping a debug warning in spin_lock_mutex(). Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-18bonding: fix locking in sysfs primary/active selectionJay Vosburgh1-5/+10
Fix the functions that store the primary and active slave options via sysfs to hold the correct locks in the correct order. The bond_change_active_slave and bond_select_active_slave functions both require rtnl, bond->lock for read and curr_slave_lock for write_bh, and no other locks. This is so that the lower level mode-specific functions (notably for balance-alb mode) can release locks down to just rtnl in order to call, e.g., dev_set_mac_address with the locks it expects (rtnl only). Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-17Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds5-24/+51
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ALPS - fix sync loss on Acer Aspire 5720ZG Input: psmouse - fix input_dev leak in lifebook driver Input: psmouse - fix potential memory leak in psmouse_connect() Input: usbtouchscreen - fix buffer overflow, make more egalax work Input: mousedev - handle mice that use absolute coordinates
2008-01-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds4-7/+19
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: [NIU]: Fix 1G PHY link state handling. [NET]: Fix TX timeout regression in Intel drivers.
2008-01-17fix wrong sized spinlock flags argumentDaniel Walker1-2/+1
Correct wrong sized spinlock flags, form int to unsigned long. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-17fix radeonfb regression with Xpress 200m 5955Alex1-0/+4
Fix http://bugzilla.kernel.org/show_bug.cgi?id=9762 Framebuffer is ok only with default parameters only (it is 1280x800-8@60). If parameters are video=radeonfb:1280x800-32@60 then xres, yres and xres_virtual are ok but yres_virtual is 1024. It can be corrected by fbset utility so I think it can be corrected in the driver code also. Steps to reproduce: video=radeonfb:1280x800-32@60 or video=radeonfb:1280x800-16@60 Add 1280x800 mode into modedb Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-17pnpacpi: print resource shortage message only once (more)Len Brown1-0/+2
Wups, previous patch was ineffective in 2 cases. http://bugzilla.kernel.org/show_bug.cgi?id=9535 Signed-off-by: Len Brown <len.brown@intel.com> Reported-by: "Hartkopp, Oliver (K-EFE/E)" <oliver.hartkopp@volkswagen.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-17cpufreq: Initialise default governor before useJohannes Weiner3-1/+12
When the cpufreq driver starts up at boot time, it calls into the default governor which might not be initialised yet. This hurts when the governor's worker function relies on memory that is not yet set up by its init function. This migrates all governors from module_init() to fs_initcall() when being the default, as was already done in cpufreq_performance when it was the only possible choice. The performance governor is always initialized early because it might be used as fallback even when not being the default. Fixes at least one actual oops where ondemand is the default governor and cpufreq_governor_dbs() uses the uninitialised kondemand_wq work-queue during boot-time. Signed-off-by: Johannes Weiner <hannes@saeurebad.de> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-17ipg: fix Tx completion irq requestFrancois Romieu1-4/+1
The current logic will only request an ack for the first pending packet. No irq is triggered as soon as the CPU submits a few packets a bit quickly. Let's request an irq for every packet instead. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2008-01-17ipg: fix queue stop condition in the xmit handlerFrancois Romieu1-1/+1
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2008-01-17ipg: plug Tx completion leakFrancois Romieu1-14/+5
The Tx skb release could not free more than one skb per call. Add it to the fact that the xmit handler does not check for a queue full condition and you have a recipe to leak quickly. Let's release every pending Tx descriptor which has been given back to the host CPU by the network controller. The xmit handler suggests that it is done through the IPG_TFC_TFDDONE bit. Remove the former "curr" computing: it does not produce anything usable in its current form. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2008-01-17ipg: balance locking in irq handlerFrancois Romieu1-5/+5
Spotted-by: <linux@horizon.com> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2008-01-17Input: ALPS - fix sync loss on Acer Aspire 5720ZGDmitry Torokhov1-1/+1
The recently added support for Dell Volstro 1400 was causing protocol synchronization errors on Acer Aspire 5720ZG, fix it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-17Input: psmouse - fix input_dev leak in lifebook driverAndres Salomon1-1/+6
The lifebook driver may register a second input device, but it never unregisters it. This fixes that. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-17Input: psmouse - fix potential memory leak in psmouse_connect()Andres Salomon1-0/+2
If we successfully call input_register_device() in psmouse_connect() but sysfs_create_group() fails, we'll enter the error path without ever having called input_unregister_device() potentially leaking memory. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-17Input: usbtouchscreen - fix buffer overflow, make more egalax workDaniel Ritz1-22/+33
Fix a buffer overflow in mutli-packet handling code. The overflow can only happen with eGalax devices and is even there very unlikely (only non-report packet are affected any only when truncated after the first byte). Also changes the mutli-packet handling code not to drop unknown packets, but rather just drop one byte. This allows synchronizing on report packets in the data stream. It's required for some egalax devices to work at all. Also remove the pointless 'flags' member of the device struct and set the version number to 0.6, plus some minor cleanups. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-17Input: mousedev - handle mice that use absolute coordinatesMicah Parrish1-0/+9
Devices like the HP Integrated Remote Console Virtual Mouse, which are standard equipment on all Proliant and Integrity servers, produce absolute coordinates instead of relative coordinates. This is done to synchronize the position of the mouse cursor on the client desktop with the mouse cursor position on the server. Mousedev is not designed to pass those absolute events directly to X, but it can translate them into relative movements. It currently does this for tablet like devices and touchpads. This patch merely tells it to also include a device with ABS_X, ABS_Y, and mouse buttons in its list of devices to process input for. This patch enables the mouse pointer to move when using the remote console. Signed-off-by: Micah Parrish <micah.parrish@hp.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-17[NIU]: Fix 1G PHY link state handling.David S. Miller1-0/+3
The code in link_status_1g() computes the active speed and duplex but does not update the link config state with those values. As a result the link speed is not reported correctly and the XIF is not reprogrammed properly on link up events. Signed-off-by: David S. Miller <davem@davemloft.net>