This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This fixes a possible MMIO access while the device is still down
from a suspend cycle. MMIO accesses with the device powered down
may cause crashes on certain devices.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.
This will fix the resume hang.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix warning:
drivers/net/pppoe.c: In function 'pppoe_recvmsg':
drivers/net/pppoe.c:945: warning: comparison of distinct pointer types lacks a cast
because skb->len is unsigned int and total_len is size_t
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
By default, tun.c running in TUN_TUN_DEV mode will set the protocol of
packet to IPv4 if TUN_NO_PI is set. My program failed to work when I
assumed that the driver will check the first nibble of packet,
determine IP version and set the appropriate protocol.
Signed-off-by: Ang Way Chuang <wcang@nav6.org>
Acked-by: Max Krasnyansky <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The atl1 driver tries to determine the MAC address thusly:
- If an EEPROM exists, read the MAC address from EEPROM and
validate it.
- If an EEPROM doesn't exist, try to read a MAC address from
SPI flash.
- If that fails, try to read a MAC address directly from the
MAC Station Address register.
- If that fails, assign a random MAC address provided by the
kernel.
We now have a report of a system fitted with an EEPROM containing all
zeros where we expect the MAC address to be, and we currently handle
this as an error condition. Turns out, on this system the BIOS writes
a valid MAC address to the NIC's MAC Station Address register, but we
never try to read it because we return an error when we find the all-
zeros address in EEPROM.
This patch relaxes the error check and continues looking for a MAC
address even if it finds an illegal one in EEPROM.
Signed-off-by: Radu Cristescu <advantis@gmx.net>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Keep enc28j60 chips in low-power mode when they're not in use.
At typically 120 mA, these chips run hot even when idle; this
low power mode cuts that power usage by a factor of around 100.
This version provides a generic routine to poll a register until
its masked value equals some value ... e.g. bit set or cleared.
It's basically what the previous wait_phy_ready() did, but this
version is generalized to support the handshaking needed to
enter and exit low power mode.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Claudio Lanconelli <lanconelli.claudio@eptar.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Minor bugfixes to the enc28j60 driver ... wrong section marking,
indentation, and bogus use of spi_bus_type.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Claudio Lanconelli <lanconelli.claudio@eptar.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Downloading firmware in pci probe allows recovery in case of
firmware failure by reloading the driver.
Also reduced delays in firmware load.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
o Remove unnecessary debug prints and functions.
o Explicitly specify pci class (0x020000) to avoid enabling
management function.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Store physical port number in netxen_adapter structure.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This fixes a the issue where logical port number is set incorrectly
for HP blade mezz cards.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The ibm_newemac driver requires ether_crc to be defined. Apparently it is
possible to generate a .config without CONFIG_CRC32 set which causes the
following link errors if IBM_NEW_EMAC is selected:
LD .tmp_vmlinux1
drivers/built-in.o: In function `emac_hash_mc':
core.c:(.text+0x2f524): undefined reference to `crc32_le'
core.c:(.text+0x2f528): undefined reference to `bitrev32'
make: *** [.tmp_vmlinux1] Error 1
This patch has IBM_NEW_EMAC select CRC32 so we don't hit this error.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Config symbols that select LEDS_CLASS need to depend on NEW_LEDS so that
undefined symbols are not used in the build.
The alternative is to select NEW_LEDS, which some drivers do.
This patch fixes the led_* symbols build errors.
(.text+0x174cdc): undefined reference to `input_unregister_device'
(.text+0x174d9f): undefined reference to `input_allocate_device'
(.text+0x174e2d): undefined reference to `input_register_device'
(.text+0x174e53): undefined reference to `input_free_device'
rt2x00rfkill.c:(.text+0x176dc4): undefined reference to `input_allocate_polled_device'
rt2x00rfkill.c:(.text+0x176e8b): undefined reference to `input_event'
rt2x00rfkill.c:(.text+0x176e9f): undefined reference to `input_event'
(.text+0x176eca): undefined reference to `input_unregister_polled_device'
(.text+0x176efc): undefined reference to `input_free_polled_device'
(.text+0x176f37): undefined reference to `input_free_polled_device'
(.text+0x176fd8): undefined reference to `input_register_polled_device'
(.text+0x1772c0): undefined reference to `led_classdev_resume'
(.text+0x1772d4): undefined reference to `led_classdev_resume'
(.text+0x1772e8): undefined reference to `led_classdev_resume'
(.text+0x17730a): undefined reference to `led_classdev_suspend'
(.text+0x17731e): undefined reference to `led_classdev_suspend'
(.text+0x17732f): undefined reference to `led_classdev_suspend'
rt2x00leds.c:(.text+0x177348): undefined reference to `led_classdev_unregister'
rt2x00leds.c:(.text+0x1773c0): undefined reference to `led_classdev_register'
rfkill-input.c:(.text+0x209e4c): undefined reference to `input_close_device'
rfkill-input.c:(.text+0x209e53): undefined reference to `input_unregister_handle'
rfkill-input.c:(.text+0x209ea1): undefined reference to `input_register_handle'
rfkill-input.c:(.text+0x209eae): undefined reference to `input_open_device'
rfkill-input.c:(.text+0x209ebb): undefined reference to `input_unregister_handle'
rfkill-input.c:(.init.text+0x17405): undefined reference to `input_register_handler'
rfkill-input.c:(.exit.text+0x194f): undefined reference to `input_unregister_handler'
make[1]: *** [vmlinux] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Config symbols that select RFKILL need to depend on INPUT so that
undefined symbols are not used in the build.
This patch fixes the input_* symbols build errors.
(.text+0x174cdc): undefined reference to `input_unregister_device'
(.text+0x174d9f): undefined reference to `input_allocate_device'
(.text+0x174e2d): undefined reference to `input_register_device'
(.text+0x174e53): undefined reference to `input_free_device'
rt2x00rfkill.c:(.text+0x176dc4): undefined reference to `input_allocate_polled_device'
rt2x00rfkill.c:(.text+0x176e8b): undefined reference to `input_event'
rt2x00rfkill.c:(.text+0x176e9f): undefined reference to `input_event'
(.text+0x176eca): undefined reference to `input_unregister_polled_device'
(.text+0x176efc): undefined reference to `input_free_polled_device'
(.text+0x176f37): undefined reference to `input_free_polled_device'
(.text+0x176fd8): undefined reference to `input_register_polled_device'
(.text+0x1772c0): undefined reference to `led_classdev_resume'
(.text+0x1772d4): undefined reference to `led_classdev_resume'
(.text+0x1772e8): undefined reference to `led_classdev_resume'
(.text+0x17730a): undefined reference to `led_classdev_suspend'
(.text+0x17731e): undefined reference to `led_classdev_suspend'
(.text+0x17732f): undefined reference to `led_classdev_suspend'
rt2x00leds.c:(.text+0x177348): undefined reference to `led_classdev_unregister'
rt2x00leds.c:(.text+0x1773c0): undefined reference to `led_classdev_register'
rfkill-input.c:(.text+0x209e4c): undefined reference to `input_close_device'
rfkill-input.c:(.text+0x209e53): undefined reference to `input_unregister_handle'
rfkill-input.c:(.text+0x209ea1): undefined reference to `input_register_handle'
rfkill-input.c:(.text+0x209eae): undefined reference to `input_open_device'
rfkill-input.c:(.text+0x209ebb): undefined reference to `input_unregister_handle'
rfkill-input.c:(.init.text+0x17405): undefined reference to `input_register_handler'
rfkill-input.c:(.exit.text+0x194f): undefined reference to `input_unregister_handler'
make[1]: *** [vmlinux] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This removes a WARN_ON that is responsible for the following koops:
http://www.kerneloops.org/searchweek.php?search=b43_generate_noise_sample
The comment in the patch describes why it's safe to simply remove
the check.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().
This patch moves the whole struct b43_dmaring struct initialization
right before any DMA allocation operation.
Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
None of the rt2x00 PCI devices support 64-bit DMA addresses (they all
only accept 32-bit buffer addresses). Hence it makes no sense to try to
enable 64-bit DMA addresses. Only try to enable 32-bit DMA addresses.
Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This fixes a "BUG: unable to handle kernel paging request"
bug in rt73usb which was caused by killing the guardian_urb
while it had never been allocated for rt73usb.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
tcp: Revert 'process defer accept as established' changes.
ipv6: Fix duplicate initialization of rawv6_prot.destroy
bnx2x: Updating the Maintainer
net: Eliminate flush_scheduled_work() calls while RTNL is held.
drivers/net/r6040.c: correct bad use of round_jiffies()
fec_mpc52xx: MPC52xx_MESSAGES_DEFAULT: 2nd NETIF_MSG_IFDOWN => IFUP
ipg: fix receivemode IPG_RM_RECEIVEMULTICAST{,HASH} in ipg_nic_set_multicast_list()
netfilter: nf_conntrack: fix ctnetlink related crash in nf_nat_setup_info()
netfilter: Make nflog quiet when no one listen in userspace.
ipv6: Fail with appropriate error code when setting not-applicable sockopt.
ipv6: Check IPV6_MULTICAST_LOOP option value.
ipv6: Check the hop limit setting in ancillary data.
ipv6 route: Fix route lifetime in netlink message.
ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
dccp: Bug in initial acknowledgment number assignment
dccp ccid-3: X truncated due to type conversion
dccp ccid-3: TFRC reverse-lookup Bug-Fix
dccp ccid-2: Bug-Fix - Ack Vectors need to be ignored on request sockets
dccp: Fix sparse warnings
dccp ccid-3: Bug-Fix - Zero RTT is possible
I would like to thank Eliezer Tamir for writing and maintaining the
driver for the past two years. I will take over maintaining the bnx2x
driver from now on.
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Eliezer Tamir <eliezert@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the RTNL is held when we invoke flush_scheduled_work() we could
deadlock. One such case is linkwatch, it is a work struct which tries
to grab the RTNL semaphore.
The most common case are net driver ->stop() methods. The
simplest conversion is to instead use cancel_{delayed_}work_sync()
explicitly on the various work struct the driver uses.
This is an OK transformation because these work structs are doing
things like resetting the chip, restarting link negotiation, and so
forth. And if we're bringing down the device, we're about to turn the
chip off and reset it anways. So if we cancel a pending work event,
that's fine here.
Some drivers were working around this deadlock by using a msleep()
polling loop of some sort, and those cases are converted to instead
use cancel_{delayed_}work_sync() as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
Compared to other places in the kernel, I think that this driver misuses
the function round_jiffies.
Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The branches are dead code. even when dev->flag IFF_MULTICAST (defined
0x1000) is set, dev->flags & IFF_MULTICAST & [boolean] always evaluates to
0.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
net: Fix routing tables with id > 255 for legacy software
sky2: Hold RTNL while calling dev_close()
s2io iomem annotations
atl1: fix suspend regression
qeth: start dev queue after tx drop error
qeth: Prepare-function to call s390dbf was wrong
qeth: reduce number of kernel messages
qeth: Use ccw_device_get_id().
qeth: layer 3 Oops in ip event handler
virtio: use callback on empty in virtio_net
virtio: virtio_net free transmit skbs in a timer
virtio: Fix typo in virtio_net_hdr comments
virtio_net: Fix skb->csum_start computation
ehea: set mac address fix
sfc: Recover from RX queue flush failure
add missing lance_* exports
ixgbe: fix typo
forcedeth: msi interrupts
ipsec: pfkey should ignore events when no listeners
pppoe: Unshare skb before anything else
...
Using vendor magic to force the PHY into power save mode breaks
suspend. It isn't needed anyway, so remove it.
Tested-by: Avuton Olrich <avuton@gmail.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
virtio_net uses a timer to free old transmitted packets, rather than
leaving callbacks enabled all the time. If the host promises to
always notify us when the transmit ring is empty, we can free packets
at that point and avoid the timer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
virtio_net currently only frees old transmit skbs just
before queueing new ones. If the queue is full, it then
enables interrupts and waits for notification that more
work has been performed.
However, a side-effect of this scheme is that there are
always xmit skbs left dangling when no new packets are
sent, against the Documentation/networking/driver.txt
guideline:
"... it is not allowed for your TX mitigation scheme
to let TX packets "hang out" in the TX ring unreclaimed
forever if no new TX packets are sent."
Add a timer to ensure that any time we queue new TX
skbs, we will shortly free them again.
This fixes an easily reproduced hang at shutdown where
iptables attempts to unload nf_conntrack and nf_conntrack
waits for an skb it is tracking to be freed, but virtio_net
never frees it.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
hdr->csum_start is the offset from the start of the ethernet
header to the transport layer checksum field. skb->csum_start
is the offset from skb->head.
skb_partial_csum_set() assumes that skb->data points to the
ethernet header - i.e. it computes skb->csum_start by adding
the headroom to hdr->csum_start.
Since eth_type_trans() skb_pull()s the ethernet header,
skb_partial_csum_set() should be called before
eth_type_trans().
(Without this patch, GSO packets from a guest to the world outside the
host are corrupted).
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
eHEA has to call firmware functions in order to change the mac address
of a logical port. This patch checks if the logical port is up
when calling the register / deregister mac address calls. If the port
is down these firmware calls would fail and are therefore not executed.
Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
RX queue flush can fail if traffic continues to arrive. Recover by
performing an invisible reset.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add a workaround for lost MSI interrupts. There is a race condition in
the HW in which future interrupts could be missed. The workaround is to
toggle the MSI irq mask.
Added cleanup based on comments from Andrew Morton.
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We need to unshare the skb first as otherwise pskb_may_pull may
write to a shared skb which could be bad.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
The length field in the PPPOE header wasn't checked completely.
This patch causes all packets shorter than the declared length
to be dropped.
It also changes the memcpy_toiovec call to skb_copy_datagram_iovec
so that paged packets (rare for PPPOE) are handled properly.
Thanks to Ilja of the Netric Security Team for discovering and
reporting this bug, and Chris Wright for the total_len check.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a potential memory corruption in
pppol2tp_recvmsg(). If skb->len is bigger than the caller's buffer
length, memcpy_toiovec() will go into unintialized data on the kernel
heap, interpret it as an iovec and start modifying memory.
The fix is to change the memcpy_toiovec() call to
skb_copy_datagram_iovec() so that paged packets (rare for PPPOL2TP)
are handled properly. Also check that the caller's buffer is big
enough for the data and set the MSG_TRUNC flag if it is not so.
Reported-by: Ilja <ilja@netric.org>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-tip testing found the following build error:
drivers/built-in.o: In function `mcs_receive_irq':
mcs7780.c:(.text+0x4e429): undefined reference to `crc32_le'
drivers/built-in.o: In function `mcs_hard_xmit':
mcs7780.c:(.text+0x4e9af): undefined reference to `crc32_le'
with:
http://redhat.com/~mingo/misc/config-Sun_Jun__8_22_56_14_CEST_2008.bad
the reason is a missing enablement of the CRC32 library in the Kconfig.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch increments the version to 3.92.1.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On 5761 non-e devices, two problems prevent the administrator from
overriding the WOL settings in the device's NVRAM.
The first problem is that GPIO 0 and GPIO 2 have been swapped. This
change prevented the administrator from turning on WOL when it is
disabled in NVRAM. The fix is to add a new path for the 5761 that
swaps the two GPIOs in the code as well.
The second problem is that GPIO 1 could not be toggled by the driver
because the GPIO is shared with the debug UART GPIO. This will prevent
the administrator from being able to turn WOL off if it was enabled in
NVRAM. The fix is to always disable the debug UART after a GRC reset.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
