David Stevens [Tue, 14 Dec 2010 08:42:16 +0000 (08:42 +0000)]
bridge: fix IPv6 queries for bridge multicast snooping
This patch fixes a missing ntohs() for bridge IPv6 multicast snooping.
Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Thu, 16 Dec 2010 22:26:56 +0000 (14:26 -0800)]
net: fix nulls list corruptions in sk_prot_alloc
Special care is taken inside sk_port_alloc to avoid overwriting
skc_node/skc_nulls_node. We should also avoid overwriting
skc_bind_node/skc_portaddr_node.
Signed-off-by: Leonard Crestez <lcrestez@ixiacom.com> Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Vecera [Tue, 14 Dec 2010 05:43:19 +0000 (05:43 +0000)]
be2net: use mutex instead of spin lock for mbox_lock
Since the mbox polling uses the schedule_timeout, the mbox_lock should be
a mutex and not a spin lock.
The commit f25b03a replaced udelay() with schedule_timeout() but didn't
change mbox_lock to semaphore or mutex.
Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Mon, 13 Dec 2010 08:20:24 +0000 (08:20 +0000)]
bonding/vlan: Fix mangled NAs on slaves without VLAN tag insertion
bond_na_send() attempts to insert a VLAN tag in between building and
sending packets of the respective formats. If the slave does not
implement hardware VLAN tag insertion then vlan_put_tag() will mangle
the network-layer header because the Ethernet header is not present at
this point (unlike in bond_arp_send()).
Fix this by adding the tag out-of-line and relying on
dev_hard_start_xmit() to insert it inline if necessary.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Reviewed-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Mon, 13 Dec 2010 08:19:56 +0000 (08:19 +0000)]
bonding: Change active slave quietly when bond is down
bond_change_active_slave() may be called when a slave is added, even
if the bond has not been brought up yet. It may then attempt to send
packets, and further it may use mcast_work which is uninitialised
before the bond is brought up. Add the necessary checks for
netif_running(bond->dev).
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Mon, 13 Dec 2010 08:19:28 +0000 (08:19 +0000)]
bonding/vlan: Remove redundant VLAN tag insertion logic
A bond may have a mixture of slave devices with and without hardware
VLAN tag insertion capability. Therefore it always claims this
capability and performs software VLAN tag insertion if the slave does
not.
Since commit 7b9c60903714bf0a19d746b228864bad3497284e, this has
also been done by dev_hard_start_xmit(). The result is that VLAN-
tagged skbs are now double-tagged when transmitted through slave
devices without hardware VLAN tag insertion!
Remove the now-redundant logic from bond_dev_queue_xmit().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Reviewed-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Andrey Vagin [Sat, 11 Dec 2010 15:20:11 +0000 (15:20 +0000)]
ipv6: delete expired route in ip6_pmtu_deliver
The first big packets sent to a "low-MTU" client correctly
triggers the creation of a temporary route containing the reduced MTU.
But after the temporary route has expired, new ICMP6 "packet too big"
will be sent, rt6_pmtu_discovery will find the previous EXPIRED route
check that its mtu isn't bigger then in icmp packet and do nothing
before the temporary route will not deleted by gc.
I make the simple experiment:
while :; do
time ( dd if=/dev/zero bs=10K count=1 | ssh hostname dd of=/dev/null ) || break;
done
The "time" reports real 0m0.197s if a temporary route isn't expired, but
it reports real 0m52.837s (!!!!) immediately after a temporare route has
expired.
Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Eduardo Costa [Tue, 14 Dec 2010 20:37:59 +0000 (14:37 -0600)]
p54usb: New USB ID for Gemtek WUBI-100GW
This USB ID is for the WUBI-100GW 802.11g Wireless LAN USB Device that
uses p54usb.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Eduardo Costa <ecosta.tmp@gmail.com> Cc: Stable <stable@kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
On suspend, there might be usb wireless drivers which wrongly trigger
the warning in ieee80211_work_work. If an usb driver doesn't have a
suspend hook, the usb stack will disconnect the device. On disconnect,
a mac80211 driver calls ieee80211_unregister_hw, which calls dev_close,
which calls ieee80211_stop, and in the end calls ieee80211_work_purge->
ieee80211_work_work.
The problem is that this call to ieee80211_work_purge comes after
mac80211 is suspended, triggering the warning even when we don't have
work queued in work_list (the expected case when already suspended),
because it always calls ieee80211_work_work.
So, just call ieee80211_work_work in ieee80211_work_purge if we really
have to abort work. This addresses the warning reported at
https://bugzilla.kernel.org/show_bug.cgi?id=24402
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tim Harvey [Thu, 9 Dec 2010 18:43:13 +0000 (10:43 -0800)]
mac80211: Fix NULL-pointer deference on ibss merge when not ready
dev_open will eventually call ieee80211_ibss_join which sets up the
skb used for beacons/probe-responses however it is possible to
receive beacons that attempt to merge before this occurs causing
a null pointer dereference. Check ssid_len as that is the last
thing set in ieee80211_ibss_join.
This occurs quite easily in the presence of adhoc nodes with hidden SSID's
revised previous patch to check further up based on irc feedback
Signed-off-by: Tim Harvey <harvey.tim@gmail.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sven Neumann [Thu, 9 Dec 2010 08:38:36 +0000 (09:38 +0100)]
libertas: fix potential NULL-pointer dereference
The code wants to check if there's a channel and it is not disabled,
but it used to check if channel is not NULL and accessed the channel
struct if this check failed.
Signed-off-by: Sven Neumann <s.neumann@raumfeld.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Andrej Ota [Sun, 12 Dec 2010 23:06:16 +0000 (15:06 -0800)]
pppoe.c: Fix kernel panic caused by __pppoe_xmit
__pppoe_xmit function return value was invalid resulting in
additional call to kfree_skb on already freed skb. This resulted in
memory corruption and consequent kernel panic after PPPoE peer
terminated the link.
Reported-by: Gorik Van Steenberge <gvs@zemos.net> Reported-by: Daniel Kenzelmann <kernel.bugzilla@kenzelmann.dyndns.info> Reported-by: Denys Fedoryshchenko <nuclearcat@nuclearcat.com> Reported-by: Pawel Staszewski <pstaszewski@artcom.pl> Diagnosed-by: Andrej Ota <andrej@ota.si> Diagnosed-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Denys Fedoryshchenko <nuclearcat@nuclearcat.com> Tested-by: Pawel Staszewski <pstaszewski@artcom.pl> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: Andrej Ota <andrej@ota.si> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bnx2x_src_init_t2() is used only when BCM_CNIC is defined.
So, to avoid a compilation warning, we won't define it unless
BCM_CNIC is defined.
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Make the LSO code work on BE platforms: parsing_data field of
a parsing BD (PBD) for 57712 was improperly composed which made FW read wrong
values for TCP header's length and offset and, as a result, the corresponding
PCI device was performing bad DMA reads triggering EEH.
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ron Mercer [Sat, 11 Dec 2010 11:06:50 +0000 (11:06 +0000)]
qlge: Fix deadlock when cancelling worker.
Removing usage of rtnl_lock() to protect firmware interface registers.
These registers are accessed in some worker threads and can create a
deadlock if rtnl_lock is taken by upper layers while the worker is still
pending.
We remove rtnl_lock and use a driver mutex just while mailboxes are
accessed.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sun, 5 Dec 2010 18:50:32 +0000 (18:50 +0000)]
net: fix skb_defer_rx_timestamp()
After commit c1f19b51d1d8 (net: support time stamping in phy devices.),
kernel might crash if CONFIG_NETWORK_PHY_TIMESTAMPING=y and
skb_defer_rx_timestamp() handles a packet without an ethernet header.
Fixes kernel bugzilla #24102
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=24102 Reported-and-tested-by: Andrew Watts <akwatts@ymail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds the IC+ IP1001 (Gigabit Ethernet Transceiver) driver.
I've had to add an additional delay (2ns) to adjust RX clock phase at
GMII/ RGMII interface (according to the PHY data-sheet). This helps to
have the RGMII working on some ST platforms.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Williams [Wed, 8 Dec 2010 19:40:47 +0000 (19:40 +0000)]
atm: correct sysfs 'device' link creation and parent relationships
The ATM subsystem was incorrectly creating the 'device' link for ATM
nodes in sysfs. This led to incorrect device/parent relationships
exposed by sysfs and udev. Instead of rolling the 'device' link by hand
in the generic ATM code, pass each ATM driver's bus device down to the
sysfs code and let sysfs do this stuff correctly.
Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Kyle McMartin [Thu, 9 Dec 2010 09:50:08 +0000 (09:50 +0000)]
MAINTAINERS: remove me from tulip
It was a nice idea, but -ENOTIME and -ENOHW. I never got around to doing
a lot of the clean up that I intended to.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Yongjun [Tue, 7 Dec 2010 17:11:09 +0000 (17:11 +0000)]
SCTP: Fix SCTP_SET_PEER_PRIMARY_ADDR to accpet v4mapped address
SCTP_SET_PEER_PRIMARY_ADDR does not accpet v4mapped address, using
v4mapped address in SCTP_SET_PEER_PRIMARY_ADDR socket option will
get -EADDRNOTAVAIL error if v4map is enabled. This patch try to
fix it by mapping v4mapped address to v4 address if allowed.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
enic: Bug Fix: Pass napi reference to the isr that services receive queue
Pass reference to napi instead of enic device to the isr that services receive queue.
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Tue, 7 Dec 2010 23:38:31 +0000 (23:38 +0000)]
ipv6: fix nl group when advertising a new link
New idev are advertised with NL group RTNLGRP_IPV6_IFADDR, but
should use RTNLGRP_IPV6_IFINFO.
Bug was introduced by commit 8d7a76c9.
Signed-off-by: Wang Xuefu <xuefu.wang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Thomas Graf <tgraf@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Since connector can be built as a module and uses netlink socket
to communicate. The module should have an alias to autoload when socket
of NETLINK_CONNECTOR type is requested.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: David S. Miller <davem@davemloft.net>
I noticed that one of the post-2.6.36 patches broke runtime PM of the
r8169 on my MSI Wind test machine in such a way that the link was not
brought up after reconnecting the network cable.
In the process of debugging the issue I realized that we only should
invoke the runtime PM functions in rtl8169_check_link_status() when
link change is reported and if we do so, the problem goes away.
Moreover, this allows rtl8169_runtime_idle() to be simplified quite
a bit.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
hso: IP checksuming doesn't work on GE0301 option cards
There is definitly a problem, that some option cards send up broken
IP pakets leading to corrupted IP packets. These corruptions aren't
detected, because the driver claims that the packets are already
checksummed. This change removes the CHECKSUM_UNNECESSARY option
and let IP detect broken data.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Egerer [Mon, 6 Dec 2010 23:28:56 +0000 (23:28 +0000)]
xfrm: Fix xfrm_state_migrate leak
xfrm_state_migrate calls kfree instead of xfrm_state_put to free
a failed state. According to git commit 553f9118 this can cause
memory leaks.
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Neil Horman [Mon, 6 Dec 2010 09:05:50 +0000 (09:05 +0000)]
net: Convert netpoll blocking api in bonding driver to be a counter
A while back I made some changes to enable netpoll in the bonding driver. Among
them was a per-cpu flag that indicated we were in a path that held locks which
could cause the netpoll path to block in during tx, and as such the tx path
should queue the frame for later use. This appears to have given rise to a
regression. If one of those paths on which we hold the per-cpu flag yields the
cpu, its possible for us to come back on a different cpu, leading to us clearing
a different flag than we set. This results in odd netpoll drops, and BUG
backtraces appearing in the log, as we check to make sure that we only clear set
bits, and only set clear bits. I had though briefly about changing the
offending paths so that they wouldn't sleep, but looking at my origional work
more closely, it doesn't appear that a per-cpu flag is warranted. We alrady
gate the checking of this flag on IFF_IN_NETPOLL, so we don't hit this in the
normal tx case anyway. And practically speaking, the normal use case for
netpoll is to only have one client anyway, so we're not going to erroneously
queue netpoll frames when its actually safe to do so. As such, lets just
convert that per-cpu flag to an atomic counter. It fixes the rescheduling bugs,
is equivalent from a performance perspective and actually eliminates some code
in the process.
Tested by the reporter and myself, successfully
Reported-by: Liang Zheng <lzheng@redhat.com> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: David S. Miller <davem@davemloft.net> Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Wey-Yi Guy [Thu, 9 Dec 2010 18:09:14 +0000 (10:09 -0800)]
iwlagn: implement layout-agnostic EEPROM reading
From: Johannes Berg <johannes.berg@intel.com>
The current EEPROM reading code has some layout
assumptions that now turned out to be false with
some newer versions of the EEPROM. Luckily, we
can avoid all such assumptions by using data in
the EEPROM itself, so implement using that.
However, for risk mitigation purposes, keep the
old reading code for current hardware for now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Johannes Berg [Tue, 30 Nov 2010 19:03:44 +0000 (11:03 -0800)]
iwlagn: rename enhanced txpower fields
Some fields we didn't previously use from the
enhanced TX power structure will be needed in
the next patch, so rename them to their correct
names to be able to use them and change code
reading them accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Eric Dumazet [Tue, 7 Dec 2010 12:20:47 +0000 (12:20 +0000)]
tcp: protect sysctl_tcp_cookie_size reads
Make sure sysctl_tcp_cookie_size is read once in
tcp_cookie_size_check(), or we might return an illegal value to caller
if sysctl_tcp_cookie_size is changed by another cpu.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: William Allen Simpson <william.allen.simpson@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 7 Dec 2010 12:03:55 +0000 (12:03 +0000)]
tcp: avoid a possible divide by zero
sysctl_tcp_tso_win_divisor might be set to zero while one cpu runs in
tcp_tso_should_defer(). Make sure we dont allow a divide by zero by
reading sysctl_tcp_tso_win_divisor exactly once.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David Kilroy [Sun, 5 Dec 2010 15:43:55 +0000 (15:43 +0000)]
orinoco: fix TKIP countermeasure behaviour
Enable the port when disabling countermeasures, and disable it on
enabling countermeasures.
This bug causes the response of the system to certain attacks to be
ineffective.
It also prevents wpa_supplicant from getting scan results, as
wpa_supplicant disables countermeasures on startup - preventing the
hardware from scanning.
wpa_supplicant works with ap_mode=2 despite this bug because the commit
handler re-enables the port.
The log tends to look like:
State: DISCONNECTED -> SCANNING
Starting AP scan for wildcard SSID
Scan requested (ret=0) - scan timeout 5 seconds
EAPOL: disable timer tick
EAPOL: Supplicant port status: Unauthorized
Scan timeout - try to get results
Failed to get scan results
Failed to get scan results - try scanning again
Setting scan request: 1 sec 0 usec
Starting AP scan for wildcard SSID
Scan requested (ret=-1) - scan timeout 5 seconds
Failed to initiate AP scan.
Reported by: Giacomo Comes <comes@naic.edu>
Signed-off by: David Kilroy <kilroyd@googlemail.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
David Kilroy [Sun, 5 Dec 2010 15:45:58 +0000 (15:45 +0000)]
orinoco: clear countermeasure setting on commit
... and interface up.
In these situations, you are usually trying to connect to a new AP, so
keeping TKIP countermeasures active is confusing. This is already how
the driver behaves (inadvertently). However, querying SIOCGIWAUTH may
tell userspace that countermeasures are active when they aren't.
Clear the setting so that the reporting matches what the driver has
done..
Signed-off by: David Kilroy <kilroyd@googlemail.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix this by making a local copy of shared skbs prior to mangeling them.
To avoid copying the skb unnecessarily move the skb_copy call below the
checks that don't need write access to the skb.
Also, move the assignment of nh_pos and h_pos below the skb_copy to point
to the correct skb.
It would be possible to avoid another resize of the copied skb by using
skb_copy_expand instead of skb_copy but that would make the patch more
complex. Also, shared skbs are a corner case right now, so the resize
shouldn't matter much.
Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
The HW has to be set to FULLSLEEP mode during suspend,
when no interface has been brought up. Not doing this would
break resume, as the chip won't be powered up at all.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
David Kilroy [Tue, 7 Dec 2010 18:50:42 +0000 (18:50 +0000)]
orinoco: initialise priv->hw before assigning the interrupt
The interrupt handler takes a lock - but since commit bcad6e80f3f this
lock goes through an indirection specified in the hermes_t structure.
We must therefore initialise the structure before setting up the
interrupt handler.
Bisected by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off by: David Kilroy <kilroyd@googlemail.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Breno Leitao [Wed, 8 Dec 2010 20:19:14 +0000 (12:19 -0800)]
ehea: Fixing LRO configuration
In order to set LRO on ehea, the user must set a module parameter, which
is not the standard way to do so. This patch adds a way to set LRO using
the ethtool tool.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 8 Dec 2010 20:16:33 +0000 (12:16 -0800)]
tcp: Replace time wait bucket msg by counter
Rather than printing the message to the log, use a mib counter to keep
track of the count of occurences of time wait bucket overflow. Reduces
spam in logs.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
x25 does not decrement the network device reference counts on module unload.
Thus unregistering any pre-existing interface after unloading the x25 module
hangs and results in
unregister_netdevice: waiting for tap0 to become free. Usage count = 1
This patch decrements the reference counts of all interfaces in x25_link_free,
the way it is already done in x25_link_device_down for NETDEV_DOWN events.
Signed-off-by: Apollon Oikonomopoulos <apollon@noc.grnet.gr> Signed-off-by: David S. Miller <davem@davemloft.net>
Regarding benet be_cmd_multicast_set() function, now using
netdev_for_each_mc_addr() helper for mac address copy, but
when copying to req->mac[] did not increase of the index.
Cc: Sathya Perla <sathyap@serverengines.com> Cc: Subbu Seetharaman <subbus@serverengines.com> Cc: Sarveshwar Bandi <sarveshwarb@serverengines.com> Cc: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: Joe Jin <joe.jin@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sun, 5 Dec 2010 02:03:26 +0000 (02:03 +0000)]
llc: fix a device refcount imbalance
Le dimanche 05 décembre 2010 à 12:23 +0100, Eric Dumazet a écrit :
> Le dimanche 05 décembre 2010 à 09:19 +0100, Eric Dumazet a écrit :
>
> > Hmm..
> >
> > If somebody can explain why RTNL is held in arp_ioctl() (and therefore
> > in arp_req_delete()), we might first remove RTNL use in arp_ioctl() so
> > that your patch can be applied.
> >
> > Right now it is not good, because RTNL wont be necessarly held when you
> > are going to call arp_invalidate() ?
>
> While doing this analysis, I found a refcount bug in llc, I'll send a
> patch for net-2.6
Oh well, of course I must first fix the bug in net-2.6, and wait David
pull the fix in net-next-2.6 before sending this rcu conversion.
Note: this patch should be sent to stable teams (2.6.34 and up)
[PATCH net-2.6] llc: fix a device refcount imbalance
commit abf9d537fea225 (llc: add support for SO_BINDTODEVICE) added one
refcount imbalance in llc_ui_bind(), because dev_getbyhwaddr() doesnt
take a reference on device, while dev_get_by_index() does.
Fix this using RCU locking. And since an RCU conversion will be done for
2.6.38 for dev_getbyhwaddr(), put the rcu_read_lock/unlock exactly at
their final place.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: stable@kernel.org Cc: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Changli Gao [Sat, 4 Dec 2010 14:09:08 +0000 (14:09 +0000)]
ifb: goto resched directly if error happens and dp->tq isn't empty
If we break the loop when there are still skbs in tq and no skb in
rq, the skbs will be left in txq until new skbs are enqueued into rq.
In rare cases, no new skb is queued, then these skbs will stay in rq
forever.
After this patch, if tq isn't empty when we break the loop, we goto
resched directly.
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
The bug has to do with boundary checks on the initial receive window.
If the initial receive window falls between init_cwnd and the
receive window specified by the user, the initial window is incorrectly
brought down to init_cwnd. The correct behavior is to allow it to
remain unchanged.
Signed-off-by: Nandita Dukkipati <nanditad@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the calculation of the inexact hash-based MAC address filter.
It's 64 bits but current code is missing a ULL. Results in filtering out
some legitimate packets.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The beacon tasklet is accesssing the bslot info for beacon generation.
Meanwhile the same slot can be freed on interface deletion.
Current the remove_interface disables the beacon alert after freeing the slot.
This may leads to null pointer access.
This patch disables SWBA and kills the beacon tasklet to prevent access
to the slot to be freed. After releasing the slot, swba will be enabled again
upon the availablity of beaconing interfaces.
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 5 Dec 2010 19:17:53 +0000 (20:17 +0100)]
ath9k: fix a DMA related race condition on reset
When ath_drain_all_txq fails to stop DMA, it issues a hw reset. This reset
happens at a very problematic point in time, when the hardware rx path has
not been stopped yet. This could lead to memory corruption, hardware hangs
or other issues.
To fix these issues, simply remove the reset entirely and check the tx DMA
stop status to prevent problems with fast channel changes.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Matteo Croce [Fri, 3 Dec 2010 01:25:08 +0000 (02:25 +0100)]
ath9k: fix bug in tx power
The ath9k driver subtracts 3 dBm to the txpower as with two radios the
signal power is doubled.
The resulting value is assigned in an u16 which overflows and makes
the card work at full power.
Cc: stable@kernel.org Signed-off-by: Matteo Croce <matteo@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ben Hutchings [Tue, 7 Dec 2010 19:24:45 +0000 (19:24 +0000)]
sfc: Fix crash in legacy onterrupt handler during ring reallocation
If we are using a legacy interrupt, our IRQ may be shared and our
interrupt handler may be called even though interrupts are disabled on
the NIC. When we change ring sizes, we reallocate the event queue and
the interrupt handler may use an invalid pointer when called for
another device's interrupt.
Maintain a legacy_irq_enabled flag and test that at the top of the
interrupt handler. Note that this problem results from the need to
work around broken INT_ISR0 reads, and does not affect the legacy
interrupt handler for Falcon A1.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Don Skidmore [Wed, 1 Dec 2010 20:54:53 +0000 (20:54 +0000)]
ixgbe: fix possible NULL pointer deference in shutdown path
After freeing the rings we were not zeroing out the ring count values.
This patch now clears these counts correctly.
Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Johan Hedberg [Mon, 6 Dec 2010 13:56:17 +0000 (15:56 +0200)]
Bluetooth: Fix initial RFCOMM DLC security level
Due to commit 63ce0900 connections initiated through TTYs created with
"rfcomm bind ..." would have security level BT_SECURITY_SDP instead of
BT_SECURITY_LOW. This would cause instant connection failure between any
two SSP capable devices due to the L2CAP connect request to RFCOMM being
sent before authentication has been performed. This patch fixes the
regression by always initializing the DLC security level to
BT_SECURITY_LOW.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com> Acked-by: Luiz Augusto von Dentz <luiz.dentz-von@nokia.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Eric Dumazet [Mon, 6 Dec 2010 17:29:43 +0000 (09:29 -0800)]
filter: fix sk_filter rcu handling
Pavel Emelyanov tried to fix a race between sk_filter_(de|at)tach and
sk_clone() in commit 47e958eac280c263397
Problem is we can have several clones sharing a common sk_filter, and
these clones might want to sk_filter_attach() their own filters at the
same time, and can overwrite old_filter->rcu, corrupting RCU queues.
We can not use filter->rcu without being sure no other thread could do
the same thing.
Switch code to a more conventional ref-counting technique : Do the
atomic decrement immediately and queue one rcu call back when last
reference is released.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
tulip: fix hang in dmfe driver on sending of big packet
This patch fixes hang in dmfe driver on attempt of sending a big packet.
Without this patch the code stops the queue and never wakes it again.
Signed-off-by: Alexander V. Lukyanov <lav@netis.ru> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
"As far as I can tell, either of these patches breaks multiple VIF
scenarios. I'm not sure exactly why, but I had to revert this to
get any of my interfaces to associate."
-- Ben Greear <greearb@candelatech.com>
Felix Fietkau [Wed, 1 Dec 2010 18:07:47 +0000 (19:07 +0100)]
ath9k_hw: fix more bitfield related endian issues
A few LNA control related flags were also specified as a bitfields, however
for some strange reason they were written in big-endian order this time.
Fix this by using flags instead.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Wed, 1 Dec 2010 18:07:46 +0000 (19:07 +0100)]
ath9k_hw: fix endian issues with CTLs on AR9003
Parsing data using bitfields is messy, because it makes endian handling
much harder. AR9002 and earlier got it right, AR9003 got it wrong.
This might lead to either using too high or too low tx power values,
depending on frequency and eeprom settings.
Fix it by getting rid of the CTL related bitfields entirely and use
masks instead.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
ath9k: Fix bug in reading input gpio state for ar9003
The register which gives input gpio state is 0x404c for ar9003,
currently 0x4048 is wrongly used. This will disable RF and make
it unusable on some of AR9003.
Cc:stable@kernel.org Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
David McCullough [Mon, 29 Nov 2010 19:32:34 +0000 (19:32 +0000)]
net/ipv6/sit.c: return unhandled skb to tunnel4_rcv
I found a problem using an IPv6 over IPv4 tunnel. When CONFIG_IPV6_SIT
was enabled, the packets would be rejected as net/ipv6/sit.c was catching
all IPPROTO_IPV6 packets and returning an ICMP port unreachable error.
I think this patch fixes the problem cleanly. I believe the code in
net/ipv4/tunnel4.c:tunnel4_rcv takes care of it properly if none of the
handlers claim the skb.
Signed-off-by: David McCullough <david_mccullough@mcafee.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hauke Mehrtens [Sat, 27 Nov 2010 06:47:43 +0000 (06:47 +0000)]
b44: fix workarround for wap54g10
The code for the b44_wap54g10_workaround was never included, because
the config option was wrong. The nvram_get function was never in
mainline kernel, only in external OpenWrt patches.
The code should be compiled in when CONFIG_BCM47XX is selected and not
when CONFIG_SSB_DRIVER_MIPS is selected, because nvram_getenv is only
available on bcm47xx platforms and now in the mainline kernel code.
Using an include is better than a second function declaration, to fix
this when the function signature changes.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Anders Franzen [Wed, 24 Nov 2010 05:47:18 +0000 (05:47 +0000)]
Make the ip6_tunnel reflect the true mtu.
The ip6_tunnel always assumes it consumes 40 bytes (ip6 hdr) of the mtu of the
underlaying device. So for a normal ethernet bearer, the mtu of the ip6_tunnel is
1460.
However, when creating a tunnel the encap limit option is enabled by default, and it
consumes 8 bytes more, so the true mtu shall be 1452.
I dont really know if this breaks some statement in some RFC, so this is a request for
comments.
Signed-off-by: Anders Franzen <anders.franzen@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Seyfried [Tue, 30 Nov 2010 20:49:08 +0000 (21:49 +0100)]
Bluetooth: Fix log spamming in btusb due to autosuspend
If a device is autosuspended an inability to resubmit URBs is
to be expected. Check the error code and only log real errors.
(Now that autosuspend is default enabled for btusb, those log
messages were happening all the time e.g. with a BT mouse)
Signed-off-by: Stefan Seyfried <seife+kernel@b1-systems.com> Signed-off-by: Oliver Neukum <oneukum@suse.de> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Th commit titled "mac80211: clean up rx handling wrt. found_sta"
removed found_sta variable which caused a MIC failure event
to be reported twice for a single failure to supplicant resulted
in STA disconnect.
This should fix WPA specific countermeasures WiFi test case (5.2.17)
issues with mac80211 based drivers which report MIC failure events in
rx status.
Cc: Stable <stable@kernel.org> (2.6.37) Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes an curious issue due to insufficient
rx frame filtering.
Saqeb Akhter reported frequent disconnects while streaming
videos over samba: <http://marc.info/?m=128600031109136>
> [ 1166.512087] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7)
> [ 1526.059997] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7)
> [ 2125.324356] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7)
> [...]
The reason is that the device generates frames with slightly
bogus SA/TA addresses.
e.g.:
[ 2314.402316] Ignore 9f:1f:31:f8:64:ff
[ 2314.402321] Ignore 9f:1f:31:f8:64:ff
[ 2352.453804] Ignore 0d:1f:31:f8:64:ff
[ 2352.453808] Ignore 0d:1f:31:f8:64:ff
^^ the group-address flag is set!
(the correct SA/TA would be: 00:1f:31:f8:64:ff)
Since the AP does not know from where the frames come, it
generates a DEAUTH response for the (invalid) mcast address.
This mcast deauth frame then passes through all filters and
tricks the stack into thinking that the AP brutally kicked
us!
This patch fixes the problem by simply ignoring
non-broadcast, group-addressed deauth/disassoc frames.
Cc: Jouni Malinen <j@w1.fi> Cc: Johannes Berg <johannes@sipsolutions.net> Reported-by: Saqeb Akhter <saqeb.akhter@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reported by: Giacomo Comes <comes@naic.edu> Signed-off-by: David Kilroy <kilroyd@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Jouni Malinen [Fri, 26 Nov 2010 18:41:55 +0000 (20:41 +0200)]
mac80211: Fix frame injection using non-AP vif
In order for frame injection to work properly for some use cases
(e.g., finding the station entry and keys for encryption), mac80211
needs to find the correct sdata entry. This works when the main vif
is in AP mode, but commit a2c1e3dad516618cb0fbfb1a62c36d0b0744573a
broke this particular use case for station main vif. While this type of
injection is quite unusual operation, it has some uses and we should fix
it. Do this by changing the monitor vif sdata selection to allow station
vif to be selected instead of limiting it to just AP vifs. We still need
to skip some iftypes to avoid selecting unsuitable vif for injection.
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Fri, 26 Nov 2010 10:38:04 +0000 (11:38 +0100)]
ath9k/carl9170: advertise P2P
With some upcoming changes we'd like to use
the interface types for P2P capability tests.
Enable them now so that when we add those
tests in wpa_supplicant, nothing will break.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gabor Juhos [Thu, 25 Nov 2010 17:26:07 +0000 (18:26 +0100)]
ath9k: use per-device struct for pm_qos_* operations
The ath9k driver uses a shared pm_qos_request_list structure for all
devices. This causes the following warning if more than one device is
present in the system:
Sven Neumann [Wed, 24 Nov 2010 16:02:00 +0000 (16:02 +0000)]
libertas: fix invalid access
card->priv must not be accessed after lbs_remove_card() was called
as lbs_remove_card() frees card->priv via free_netdev().
For libertas_sdio this is a regression introduced by 23b149c1890f9.
The correct fix to the issue described there is simply to remove the
assignment. This flag is set at the appropriate time inside
lbs_remove_card anyway.
Reported-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Sven Neumann <s.neumann@raumfeld.com> Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Eric Dumazet [Thu, 25 Nov 2010 04:11:39 +0000 (04:11 +0000)]
af_unix: limit recursion level
Its easy to eat all kernel memory and trigger NMI watchdog, using an
exploit program that queues unix sockets on top of others.
lkml ref : http://lkml.org/lkml/2010/11/25/8
This mechanism is used in applications, one choice we have is to have a
recursion limit.
Other limits might be needed as well (if we queue other types of files),
since the passfd mechanism is currently limited by socket receive queue
sizes only.
Add a recursion_level to unix socket, allowing up to 4 levels.
Each time we send an unix socket through sendfd mechanism, we copy its
recursion level (plus one) to receiver. This recursion level is cleared
when socket receive queue is emptied.
Reported-by: Марк Коренберг <socketpair@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Toshiharu Okada [Mon, 29 Nov 2010 06:18:07 +0000 (06:18 +0000)]
pch_gbe driver: The wrong of initializer entry
The wrong of initializer entry was modified.
Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com> Reported-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / karo-tx-linux.git / log