Use qdisc_root_sleeping_lock() instead of qdisc_root_lock() where
appropriate. The only difference is while dev is deactivated, when
currently we can use a sleeping qdisc with the lock of noop_qdisc.
This shouldn't be dangerous since after deactivation root lock could
be used only by gen_estimator code, but looks wrong anyway.
Signed-off-by: NJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The number of identifiers needs to be checked against the option
length.  Also, the identifier index provided needs to be verified
to make sure that it doesn't exceed the bounds of the array.
Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The bonds check to prevent buffer overlflow was not exactly
right.  It still allowed overflow of up to 8 bytes which is
sizeof(struct sctp_authkey).

Since optlen is already checked against the size of that struct,
we are guaranteed not to cause interger overflow either.
Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There are missing capability checks in the following code:

1300 static int
1301 sbni_ioctl( struct net_device  *dev,  struct ifreq  *ifr,  int  cmd)
1302 {
[...]
1319     case  SIOCDEVRESINSTATS :
1320         if( current->euid != 0 )    /* root only */
1321             return  -EPERM;
[...]
1336     case  SIOCDEVSHWSTATE :
1337         if( current->euid != 0 )    /* root only */
1338             return  -EPERM;
[...]
1357     case  SIOCDEVENSLAVE :
1358         if( current->euid != 0 )    /* root only */
1359             return  -EPERM;
[...]
1372     case  SIOCDEVEMANSIPATE :
1373         if( current->euid != 0 )    /* root only */
1374             return  -EPERM;

Here's my proposed fix:

Missing capability checks.
Signed-off-by: NEugene Teo <eugeneteo@kernel.sg>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There were 2 omitted readb's used on an iomap space. eliminate them
by using ioread8 instead.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

When a preallocated header qdio buffer is filled we have to account
the offset for the data length.
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

In case the netdev unicast list contains additional entries we have
to register/deregister them.
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

return value -ENOTSUPP is not valid in userspace context, use
-EOPNOTSUPP instead.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

We must not call dev_mc_add() from within our HW configure which happens
before we initialize and register the netdev. Do it in open() instead.

Thanks to Sebastian Siewior for tracking it down.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

I got the following backtrace while network was unavailble:

|NETDEV WATCHDOG: eth0: transmit timed out
|BUG: sleeping function called from invalid context at /home/bigeasy/git/linux-2.6-powerpc/kernel/mutex.c:87
|in_atomic():1, irqs_disabled():0
|Call Trace:
|[c0383d90] [c0006dd8] show_stack+0x48/0x184 (unreliable)
|[c0383db0] [c001e938] __might_sleep+0xe0/0xf4
|[c0383dc0] [c025a43c] mutex_lock+0x24/0x3c
|[c0383de0] [c019005c] phy_stop+0x20/0x70
|[c0383df0] [c018d4ec] stop_gfar+0x28/0xf4
|[c0383e10] [c018e8c4] gfar_timeout+0x30/0x60
|[c0383e20] [c01fe7c0] dev_watchdog+0xa8/0x144
|[c0383e30] [c002f93c] run_timer_softirq+0x148/0x1c8
|[c0383e60] [c002b084] __do_softirq+0x5c/0xc4
|[c0383e80] [c00046fc] do_softirq+0x3c/0x54
|[c0383e90] [c002ac60] irq_exit+0x3c/0x5c
|[c0383ea0] [c000b378] timer_interrupt+0xe0/0xf8
|[c0383ec0] [c000e5ac] ret_from_except+0x0/0x18
|[c0383f80] [c000804c] cpu_idle+0xcc/0xdc
|[c0383fa0] [c025c07c] etext+0x7c/0x90
|[c0383fc0] [c0338960] start_kernel+0x294/0x2a8
|[c0383ff0] [c00003dc] skpinv+0x304/0x340
|------------[ cut here ]------------

The phylock was once a spinlock but got changed into a mutex via
commit 35b5f6b1 aka [PHYLIB: Locking fixes for PHY I/O potentially sleeping]
Signed-off-by: NSebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Fix the checksum feature advertised in device flags.  The hardware support
TCP/UDP over IPv4 and TCP/UDP over IPv6 (without IPv6 extension headers).
However, the kernel feature flags do not distinguish IPv6 with/without
extension headers.

Therefore, the driver needs to use NETIF_F_IP_CSUM instead of
NETIF_F_HW_CSUM since the latter includes all IPv6 packets.

A future patch can be created to check for extension headers and perform
software checksum calculation.
Signed-off-by: NAyaz Abdulla <aabdulla@nvidia.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Manfred Spraul <manfred@colorfullife.com
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Implement set_mac_address for mcs7830. This enables me to use it with my
cable modem.
Signed-off-by: NOliver Martin <oliver.martin@student.tuwien.ac.at>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This adds USB device IDs for MosChip 7730 and Sitecom LN030
to the mcs7830 driver. The IDs have been reported to work without
further modifications.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NDavid Brownell <david-b@pacbell.net>
Cc: Viktor Horvath <ViktorHorvath@gmx.net>
Cc: Robbert Wethmar <robbert@wethmar.nl>
Cc: Bart van der Klip <bklip@xs4all.nl>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Properly handle resource cleanup on unplug/exit.

Spotted by Jonathan Cameron
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch fixes a ibmveth bug where bad UDP checksums are being transmitted
when checksum offloading is enabled.
The hypervisor does checksum offloading only on TCP packets, so ibmveth calls
skb_checksum_help() for any other protocol.  The bug happens because
the packet is being modified after the DMA map, so we would need a memory
barrier before making the hypervisor call.  Reordering the code so that the
DMA map happens after skb_checksum_help() has the additional advantage of
fixing a DMA map leak if skb_checksum_help() where to fail.
Signed-off-by: NSantiago Leon <santil@us.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Fixes dev_kfree_skb happening too many times when hso_start_net_device
is called from hso_resume.
Signed-off-by: NDenis Joseph Barrow <D.Barow@option.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Fixes Icon-322 detection.
Signed-off-by: NDenis Joseph Barrow <D.Barow@option.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

The atl1 driver is causing stalled connections and file corruption
whenever TSO is enabled.  Two examples are here:

http://lkml.org/lkml/2008/7/15/325
http://lkml.org/lkml/2008/8/18/543

Disable TSO by default until we can determine the source of the
problem.
Signed-off-by: NJay Cliburn <jacliburn@bellsouth.net>
cc: stable@kernel.org
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Doesn't cause problems (yet) because err gets zeroed earlier.
Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Disable support for device 8086:10E8.  Currently the result of loading the
driver with the device present causes system instability.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

  CC [M]  drivers/net/skfp/ess.o
drivers/net/skfp/ess.c: In function 'ess_send_response':
drivers/net/skfp/ess.c:513: warning: cast from pointer to integer of different size
drivers/net/skfp/ess.c: In function 'ess_send_alc_req':
drivers/net/skfp/ess.c:609: warning: cast from pointer to integer of different size
drivers/net/skfp/ess.c:639: warning: cast from pointer to integer of different size
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

vpnc on today's kernel says Cannot open "/proc/sys/net/ipv4/route/flush":
d--------- 0 root root 0 2008-08-26 11:32 /proc/sys/net/ipv4/route
d--------- 0 root root 0 2008-08-26 19:16 /proc/sys/net/ipv4/neigh
Signed-off-by: NHugh Dickins <hugh@veritas.com>
Acked-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The size of the TCP header is miscalculated when the window scale ends
up being 0. Additionally, this can be induced by sending a SYN to a
passive open port with a window scale option with value 0.
Signed-off-by: NPhilip Love <love_phil@emc.com>
Signed-off-by: NAdam Langley <agl@imperialviolet.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use new qdisc_root_sleeping_lock() instead of qdisc_root_lock() as
sch_tree_lock() because this lock could be used while dev is
deactivated, but we never need to use this with noop_qdisc as a root.
Signed-off-by: NJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While passing a qdisc root lock to gen_new_estimator() and
gen_replace_estimator() dev could be deactivated or even before
grafting proper root qdisc as qdisc_sleeping (e.g. qdisc_create), so
using qdisc_root_lock() is not enough. This patch adds
qdisc_root_sleeping_lock() for this, plus additional checks, where
necessary.
Signed-off-by: NJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

These pointers are RCU protected, so proper primitives should be used.
Signed-off-by: NJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

LCS recovery dumps in irq routine when CCW address in
Subchannel Status Word (SCSW) is zero. This occurs
when recovery is driven after cable reconnect.
Signed-off-by: NKlaus-D. Wacker <kdwacker@de.ibm.com>
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Use netdev->ml_priv instead of netdev->priv
Signed-off-by: NPeter Tiedemann <ptiedem@de.ibm.com>
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Use netdev->ml_priv instead of netdev->priv
Signed-off-by: NPeter Tiedemann <ptiedem@de.ibm.com>
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

probe_error() frees memory only, if cgdev->dev.driver_data refers
to the claw_privbk structure. Move forward its setting in claw_probe()
to ensure proper freeing of claw_privbk allocations.

Cc: Daniel <danielm77@spray.se>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Signed-off-by: NAlan 'pass the paper bags' Cox <alan@redhat.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NVitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

The real_num_tx_queues was not being set when in MSI-X only mode.  This patch
corrects that path so all interrupt types are correctly configured.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Ethtool -d is reading the EICR and ICR registers which is currently
clearing these registers and masking off interrupts.  To prevent this we
read the EICS and ICS equivilents as they can be read without clearing or
masking.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Set the EICS bit for each of the RX queues at least once every 2 seconds to
prevent the rx queues from stalling.
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

The leak hurts with swiotlb and jumbo frames.

Fix http://bugzilla.kernel.org/show_bug.cgi?id=9468.

Heavily hinted by Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Tested-by: NAlistair John Strachan <alistair@devzero.co.uk>
Tested-by: NTimothy J Fontaine <tjfontaine@atxconsulting.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

During dev_graft_qdisc() dev is deactivated, so qdisc_root_lock()
returns wrong lock of noop_qdisc instead of qdisc_sleeping.
Signed-off-by: NJarek Poplawski <jarkao2@gmail.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>