160622 Commits

Author SHA1 Message Date
Steve Glendinning
9532021da6 usbnet: ratelimit kevent may have been dropped warnings
when something goes wrong, a flood of these messages can be
generated by usbnet (thousands per second).  This doesn't
generally *help* the condition so this patch ratelimits the
rate of their generation.

There's an underlying problem in usbnet's kevent deferral
mechanism which needs fixing, specifically that events *can*
get dropped and not handled.  This patch doesn't address this,
but just mitigates fallout caused by the current implemention.

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-09 16:59:32 -05:00
Ian Coolidge
a66fe1653f net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
cdc_eem frames might need to contain 802.1Q VLAN Ethernet frames.
URB/skb sizing from usbnet will default to the hard_mtu,
so account for the VLAN header by expanding that via hard_header_len

Signed-off-by: Ian Coolidge <iancoolidge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 21:12:26 -05:00
Ian Coolidge
4fe5f079b4 usb: gadget: g_ether: fix frame size check for 802.1Q
Checking skb->len against ETH_FRAME_LEN assumes a 1514
ethernet frame size. With an 802.1Q VLAN header, ethernet
frame length can now be 1518. Validate frame length against that.

Signed-off-by: Ian Coolidge <iancoolidge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 21:12:26 -05:00
Vipul Pandya
0dad9e94bd cxgb4: Fix initialization of SGE_CONTROL register
INGPADBOUNDARY_MASK is already shifted. No need to shift it again. On reloading
a driver it was resulting in a bad SGE FL MTU sizes [1536, 9088] error. This
only causes an issue on systems that have L1 cache size of 32B, 128B, 512B,
2048B or 4096B.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 19:02:19 -05:00
Lee Jones
7fd78edc47 isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
It doesn't make much sense to enable ISDN services if you don't
intend to connect to a network. Therefore insisting that ISDN
depends on NETDEVICES seems logical. We can then remove any
guards mentioning NETDEVICES inside all subordinate drivers.

This also has the nice side-effect of fixing the warning below
when ISDN_I4L && !CONFIG_NETDEVICES at compile time.

This patch fixes:
drivers/isdn/i4l/isdn_common.c: In function ‘isdn_ioctl’:
drivers/isdn/i4l/isdn_common.c:1278:8: warning: unused variable ‘s’ [-Wunused-variable]

Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 18:59:26 -05:00
Vipul Pandya
0062b15c10 cxgb4: Initialize data structures before using.
We should not assume reserve fields to be don't cares as fields may change.
Clearing data structures before using.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 15:43:26 -05:00
Masanari Iida
efc7ce0334 net: bnx2x: Fix typo in bnx2x driver
Correct spelling typo in bnx2x driver

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-03 15:31:23 -04:00
Steve Glendinning
00acda68b5 smsc95xx: fix tx checksum offload for big endian
f7b2927 introduced tx checksum offload support for smsc95xx,
and enabled it by default. This feature doesn't take
endianness into account, so causes most tx to fail on
those platforms.

This patch fixes the problem fully by adding the missing
conversion.

An alternate workaround is to disable TX checksum offload
on those platforms. The cpu impact of this feature is very low.

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-03 15:29:55 -04:00
Nathan Walp
0481776b7a r8169: allow multicast packets on sub-8168f chipset.
RTL_GIGA_MAC_VER_35 includes no multicast hardware filter.

Signed-off-by: Nathan Walp <faceprint@faceprint.com>
Suggested-by: Hayes Wang <hayeswang@realtek.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-03 15:27:07 -04:00
Cyril Brulebois
b00e69dee4 r8169: Fix WoL on RTL8168d/8111d.
This regression was spotted between Debian squeeze and Debian wheezy
kernels (respectively based on 2.6.32 and 3.2). More info about
Wake-on-LAN issues with Realtek's 816x chipsets can be found in the
following thread: http://marc.info/?t=132079219400004

Probable regression from d4ed95d796e5126bba51466dc07e287cebc8bd19;
more chipsets are likely affected.

Tested on top of a 3.2.23 kernel.

Reported-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Tested-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Hinted-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Cyril Brulebois <kibi@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-03 15:10:15 -04:00
Xiaotian Feng
175c0dffef drivers/net: use tasklet_kill in device remove/close process
Some driver uses tasklet_disable in device remove/close process,
tasklet_disable will inc tasklet->count and return. If the tasklet
is not handled yet because some softirq pressure, the tasklet will
placed on the tasklet_vec, never have a chance to excute. This might
lead to ksoftirqd heavy loaded, wakeup with pending_softirq, but
tasklet is disabled. tasklet_kill should be used in this case.

Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-03 15:10:15 -04:00
Linus Torvalds
0f89a5733a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "First post-Sandy pull request"

 1) Fix antenna gain handling and initialization of chan->max_reg_power
    in wireless, from Felix Fietkau.

 2) Fix nexthop handling in H.232 conntrack helper, from Julian
    Anastasov.

 3) Only process 80211 mesh config header in certain kinds of frames,
    from Javier Cardona.

 4) 80211 management frame header length needs to be validated, from
    Johannes Berg.

 5) Don't access free'd SKBs in ath9k driver, from Felix Fietkay.

 6) Test for permanent state correctly in VXLAN driver, from Stephen
    Hemminger.

 7) BNX2X bug fixes from Yaniv Rosner and Dmitry Kravkov.

 8) Fix off by one errors in bonding, from Nikolay ALeksandrov.

 9) Fix divide by zero in TCP-Illinois congestion control.  From Jesper
    Dangaard Brouer.

10) TCP metrics code says "Yo dawg, I heard you like sizeof, so I did a
    sizeof of a sizeof, so you can size your size" Fix from Julian
    Anastasov.

11) Several drivers do mdiobus_free without first doing an
    mdiobus_unregister leading to stray pointer references.  Fix from
    Peter Senna Tschudin.

12) Fix OOPS in l2tp_eth_create() error path, it's another danling
    pointer kinda situation.  Fix from Tom Parkin.

13) Hardware driven by the vmxnet driver can't handle larger than 16K
    fragments, so split them up when necessary.  From Eric Dumazet.

14) Handle zero length data length in tcp_send_rcvq() properly.  Fix
    from Pavel Emelyanov.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
  tcp-repair: Handle zero-length data put in rcv queue
  vmxnet3: must split too big fragments
  l2tp: fix oops in l2tp_eth_create() error path
  cxgb4: Fix unable to get UP event from the LLD
  drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free
  drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_free
  bnx2x: fix HW initialization using fw 7.8.x
  tcp: Fix double sizeof in new tcp_metrics code
  net: fix divide by zero in tcp algorithm illinois
  net: sctp: Fix typo in net/sctp
  bonding: fix second off-by-one error
  bonding: fix off-by-one error
  bnx2x: Disable FCoE for 57840 since not yet supported by FW
  bnx2x: Fix no link on 577xx 10G-baseT
  bnx2x: Fix unrecognized SFP+ module after driver is loaded
  bnx2x: Fix potential incorrect link speed provision
  bnx2x: Restore global registers back to default.
  bnx2x: Fix link down in 57712 following LFA
  bnx2x: Fix 57810 1G-KR link against certain switches.
  ixgbe: PTP get_ts_info missing software support
  ...
2012-11-02 20:48:41 -07:00
Eric Dumazet
a4d7e485bc vmxnet3: must split too big fragments
vmxnet3 has a 16Kbytes limit per tx descriptor, that happened to work
as long as we provided PAGE_SIZE fragments.

Our stack can now build larger fragments, so we need to split them to
the 16kbytes boundary.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: jongman heo <jongman.heo@samsung.com>
Tested-by: jongman heo <jongman.heo@samsung.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Reviewed-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Shreyas Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02 21:58:09 -04:00
Vipul Pandya
e3c9851278 cxgb4: Fix unable to get UP event from the LLD
If T4 configuration file gets loaded from the /lib/firmware/cxgb4/ directory
then offload capabilities of the cards were getting disabled during
initialization. Hence ULDs do not get an UP event from the LLD.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02 21:41:29 -04:00
Peter Senna Tschudin
aa731872f7 drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free
Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0

Calling mdiobus_free without calling mdiobus_unregister causes
BUG_ON(). This patch fixes the issue.

The semantic patch that found this issue(http://coccinelle.lip6.fr/):
// <smpl>
@@
expression E;
@@
  ... when != mdiobus_unregister(E);

+ mdiobus_unregister(E);
  mdiobus_free(E);
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02 21:36:06 -04:00
Peter Senna Tschudin
57c10b61c8 drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_free
Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0

Calling mdiobus_free without calling mdiobus_unregister causes
BUG_ON(). This patch fixes the issue.

The semantic patch that found this issue(http://coccinelle.lip6.fr/):
// <smpl>
@@
expression E;
@@
  ... when != mdiobus_unregister(E);

+ mdiobus_unregister(E);
  mdiobus_free(E);
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Tested-by: Roland Stigge <stigge@antcom.de>
Tested-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02 21:36:06 -04:00
Dmitry Kravkov
2b674047be bnx2x: fix HW initialization using fw 7.8.x
Since commit 96bed4b9 (use FW 7.8.2) BRB HW block needs to be
initialized using fw values for all devices.
Otherwise ETS on 57712/578xx will not work.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02 21:32:11 -04:00
Linus Torvalds
a315b5a6d4 Power management update for 3.7-rc4
Change the email address of the powernow-k8 maintainer.
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Merge tag 'pm-for-3.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management update from Rafael J. Wysocki:
 "Change the email address of the powernow-k8 maintainer."

* tag 'pm-for-3.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq / powernow-k8: Change maintainer's email address
2012-11-02 16:56:39 -07:00
Linus Torvalds
74fb838cd4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
 "Just a few driver fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: tsc40 - remove wrong announcement of pressure support
  Input: lpc32xx-keys - select INPUT_MATRIXKMAP
  Input: pxa27x_keypad - clear pending interrupts on keypad config
  Input: wacom - correct bad Cintiq 24HD check
  Input: wacom - add INPUT_PROP_DIRECT flag to Cintiq 24HD
  Input: egalax_ts - get gpio from devicetree
2012-11-02 16:11:15 -07:00
Linus Torvalds
23e44302b3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull more scsi target fixes from Nicholas Bellinger:
 "This series is a second round of target fixes for v3.7-rc4 that have
  come into target-devel over the last days, and are important enough to
  be applied ASAP.

  All are being CC'ed to stable.  The most important two are:

   - target: Re-add explict zeroing of INQUIRY bounce buffer memory to
     fix a regression for handling zero-length payloads, a bug that went
     during v3.7-rc1, and hit >= v3.6.3 stable.  (nab + paolo)

   - iscsi-target: Fix a long-standing missed R2T wakeup race in TX
     thread processing when using a single queue slot.  (Roland)

  Thanks to Roland & PureStorage team for helping to track down this
  long standing race with iscsi-target single queue slot operation.

  Also, the tcm_fc(FCoE) regression bug that was observed recently with
  -rc2 code has also been resolved with the cancel_delayed_work() return
  bugfix (commit c0158ca64da5: "workqueue: cancel_delayed_work() should
  return %false if work item is idle") now in -rc3.  Thanks again to Yi
  Zou, MDR, Robert Love @ Intel for helping to track this down."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path
  iscsi-target: Fix missed wakeup race in TX thread
  target: Avoid integer overflow in se_dev_align_max_sectors()
  target: Don't return success from module_init() if setup fails
  target: Re-add explict zeroing of INQUIRY bounce buffer memory
2012-11-02 15:08:20 -07:00
Linus Torvalds
ae41fce3cc An e-mail address update, and fix a compile error on SPARC
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "An e-mail address update, and fix a compile error on SPARC"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: Only include of_match_table with CONFIG_OF_GPIO
  hwmon, fam15h_power: Change email address, MAINTAINERS entry
2012-11-02 13:27:52 -07:00
Linus Torvalds
66b6a0c979 Bug-fixes:
* Use appropriate macros instead of hand-rolling our own (ARM).
  * Fixes if FB/KBD closed unexpectedly.
  * Fix memory leak in /dev/gntdev ioctl calls.
  * Fix overflow check in xenbus_file_write.
  * Document cleanup.
  * Performance optimization when migrating guests.
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Merge tag 'stable/for-linus-3.7-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen bugfixes from Konrad Rzeszutek Wilk:
 - Use appropriate macros instead of hand-rolling our own (ARM).
 - Fixes if FB/KBD closed unexpectedly.
 - Fix memory leak in /dev/gntdev ioctl calls.
 - Fix overflow check in xenbus_file_write.
 - Document cleanup.
 - Performance optimization when migrating guests.

* tag 'stable/for-linus-3.7-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/mmu: Use Xen specific TLB flush instead of the generic one.
  xen/arm: use the __HVC macro
  xen/xenbus: fix overflow check in xenbus_file_write()
  xen-kbdfront: handle backend CLOSED without CLOSING
  xen-fbfront: handle backend CLOSED without CLOSING
  xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF
  x86: remove obsolete comment from asm/xen/hypervisor.h
2012-11-02 13:26:11 -07:00
Jamie Lentin
eaa7cc60f7 hwmon: Only include of_match_table with CONFIG_OF_GPIO
The following fixes build errors on sparc. Without any DT support,
of_match_ptr is NULL and the below is a no-op. However, if just
CONFIG_OF is defined then so is of_match_ptr.

All useful parts of the gpio-fan DT support rely on CONFIG_OF_GPIO
anyway, so of_match_table should too.

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-11-01 17:31:20 -07:00
nikolay@redhat.com
c84e1590d1 bonding: fix second off-by-one error
Fix off-by-one error because IFNAMSIZ == 16 and when this
code gets executed we stick a NULL byte where we should not.

How to reproduce:
 with CONFIG_CC_STACKPROTECTOR=y (otherwise it may pass by silently)
 modprobe bonding; echo 1 > /sys/class/net/bond0/bonding/mode;
 echo "AAAAAAAAAAAAAAAA" > /sys/class/net/bond0/bonding/active_slave;

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>

Note: Sorry for the second patch but I missed this one while checking
      the file. You can squash them into one patch.
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:53:44 -04:00
nikolay@redhat.com
eb6e98a1b2 bonding: fix off-by-one error
Fix off-by-one error because IFNAMSIZ == 16 and when this
code gets executed we stick a NULL byte where we should not.

How to reproduce:
 with CONFIG_CC_STACKPROTECTOR=y (otherwise it may pass by silently)
 modprobe bonding; echo 1 > /sys/class/net/bond0/bonding/mode;
 echo "AAAAAAAAAAAAAAAA" > /sys/class/net/bond0/bonding/primary;

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:53:43 -04:00
Dmitry Kravkov
477864ddd3 bnx2x: Disable FCoE for 57840 since not yet supported by FW
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:55 -04:00
Yaniv Rosner
03c31488a0 bnx2x: Fix no link on 577xx 10G-baseT
Since the Warpcore supports various link types, need to set only the correct
supported modes for XFI which is the serdes interface for the 10G-baseT PHY.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:54 -04:00
Yaniv Rosner
e82041df5d bnx2x: Fix unrecognized SFP+ module after driver is loaded
When SFP+ module is plugged in after driver is already loaded, it may not be
recognized, so set SFP module recognition time up to 300ms, without resetting
the module power in the middle.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:54 -04:00
Yaniv Rosner
4978140c38 bnx2x: Fix potential incorrect link speed provision
Fix possible incorrect link speed provision following rapid link speed change.
Clear link speed mask after each link change, and not only after link down.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:54 -04:00
Yaniv Rosner
cd1a26a3bb bnx2x: Restore global registers back to default.
Several KR registers were not set correctly back to default after
loopback test, so set those global registers over the global WC lane (zero)
rather than the current lane.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:53 -04:00
Yaniv Rosner
a75bb00100 bnx2x: Fix link down in 57712 following LFA
In case of link flap avoidance between PXE boot and bnx2x, set the appropriate
PHY DEVAD even if LFA kicks in.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:52 -04:00
Yaniv Rosner
b457bcb972 bnx2x: Fix 57810 1G-KR link against certain switches.
Fix 1G KR link by restoring CL72 misc control register to default value rather
than 0.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01 11:31:51 -04:00
Jacob Keller
50f8d35de8 ixgbe: PTP get_ts_info missing software support
This patch corrects the ethtool get_ts_info functon which did not state that
software timestamping was supported, even though it is.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
CC: Stable <stable@vger.kernel.org> [3.5]
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>
2012-11-01 11:22:34 -04:00
Steve Hodgson
ab74b3d62f target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path
This patch changes core_tmr_abort_task() to use spin_lock -> spin_unlock
around se_cmd->t_state_lock while spin_lock_irqsave is held via
se_sess->sess_cmd_lock.

Signed-off-by: Steve Hodgson <steve@purestorage.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-11-01 00:38:45 -07:00
Roland Dreier
d5627acba9 iscsi-target: Fix missed wakeup race in TX thread
The sleeping code in iscsi_target_tx_thread() is susceptible to the classic
missed wakeup race:

 - TX thread finishes handle_immediate_queue() and handle_response_queue(),
   thinks both queues are empty.
 - Another thread adds a queue entry and does wake_up_process(), which does
   nothing because the TX thread is still awake.
 - TX thread does schedule_timeout() and sleeps forever.

In practice this can kill an iSCSI connection if for example an initiator
does single-threaded writes and the target misses the wakeup window when
queueing an R2T; in this case the connection will be stuck until the
initiator loses patience and does some task management operation (or kills
the connection entirely).

Fix this by converting to wait_event_interruptible(), which does not
suffer from this sort of race.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-11-01 00:38:44 -07:00
Roland Dreier
3e03989b58 target: Avoid integer overflow in se_dev_align_max_sectors()
The expression (max_sectors * block_size) might overflow a u32
(indeed, since iblock sets max_hw_sectors to UINT_MAX, it is
guaranteed to overflow and end up with a much-too-small result in many
common cases).  Fix this by doing an equivalent calculation that
doesn't require multiplication.

While we're touching this code, avoid splitting a printk format across
two lines and use pr_info(...) instead of printk(KERN_INFO ...).

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-11-01 00:38:44 -07:00
Roland Dreier
0d0f9dfb31 target: Don't return success from module_init() if setup fails
If the call to core_dev_release_virtual_lun0() fails, then nothing
sets ret to anything other than 0, so even though everything is
torn down and freed, target_core_init_configfs() will seem to succeed
and the module will be loaded.  Fix this by passing the return value
on up the chain.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-11-01 00:38:31 -07:00
Nicholas Bellinger
dea5f0998a target: Re-add explict zeroing of INQUIRY bounce buffer memory
This patch fixes a regression in spc_emulate_inquiry() code where the
local scope bounce buffer was no longer getting it's memory zeroed,
causing various problems with SCSI initiators that depend upon areas
of INQUIRY EVPD=0x83 payload having been zeroed.

This bug was introduced with the following v3.7-rc1 patch + CC'ed
stable commit:

commit ffe7b0e9326d9c68f5688bef691dd49f1e0d3651
Author: Paolo Bonzini <pbonzini@redhat.com>
Date:   Fri Sep 7 17:30:38 2012 +0200

    target: support zero allocation length in INQUIRY

Go ahead and re-add the missing memset of bounce buffer memory to be
copied into the outgoing se_cmd descriptor kmapped SGL payload.

Reported-by: Kelsey Prantis <kelsey.prantis@intel.com>
Cc: Kelsey Prantis <kelsey.prantis@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-10-31 22:17:12 -07:00
Linus Torvalds
1e207eb1c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull scsi target fixes from Nicholas Bellinger:
 "These are the current target pending fixes headed for v3.7-rc4 code.
  This includes the following highlights:

   - Fix long-standing qla2xxx target bug where certain fc_port_t state
     transitions could cause the internal session b-tree list to become
     out-of-sync.  (Roland)
   - Fix task management double free of se_cmd descriptor in exception
     path for users of target_submit_tmr().  (nab)
   - Re-introduce simple NOP emulation of REZERO_UNIT, SEEK_6, and
     SEEK_10 SCSI-2 commands in order to support legacy initiators that
     still require them.  (Bernhard)

  Note these three patches are also CC'ed to stable.

  Also, there a couple of outstanding (external) regressions that are
  still being tracked down for tcm_fc(FCoE) and tcm_vhost fabrics for
  v3.7.0 code, so please expect another PULL as these issues identified
  -> resolved."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: reintroduce some obsolete SCSI-2 commands
  target: Fix double-free of se_cmd in target_complete_tmr_failure
  qla2xxx: Update target lookup session tables when a target session changes
  tcm_qla2xxx: Format VPD page 83h SCSI name string according to SPC
  qla2xxx: Add missing ->vport_slock while calling qlt_update_vp_map
2012-10-31 15:42:08 -07:00
Linus Torvalds
ed48c06c32 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull nouveau fixes from Dave Airlie:
 "Just a nouveau set, since we have a couple of reports on lkml and
  dri-devel of regressions that this should fix I sent it along on its
  own."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: headless mode by default if pci class != vga display
  drm/nouveau: resurrect headless mode since rework
  drm/nv50/fb: prevent oops on chipsets without compression tags
  drm/nouveau: allow creation of zero-sized mm
  drm/nouveau/i2c: fix typo when checking nvio i2c port validity
  drm/nouveau: silence modesetting spam on pre-gf8 chipsets
2012-10-31 15:40:21 -07:00
Linus Torvalds
296bac30f6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
 "This contains fixes for two devices by Jiri Slaby and Xianhan Yu, new
  device IDs for MacBook Pro 10,2 from Dirk Hohndel and generic
  multitouch code fix from Alan Cox."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Add support for the MacBook Pro 10,2 keyboard / touchpad
  HID: multitouch: fix maxcontacts problem on GeneralTouch
  HID: multitouch: put the case in the right switch statement
  HID: microsoft: fix invalid rdesc for 3k kbd
2012-10-31 15:39:28 -07:00
Andreas Herrmann
29c4bcddaa cpufreq / powernow-k8: Change maintainer's email address
Change the Andreas' email address in drivers/cpufreq/powernow-k8.c.

Signed-off-by: Andreas Herrmann <herrmann.der.user@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-10-31 21:02:57 +01:00
David S. Miller
aff9c78618 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
This is a batch of fixes intended for 3.7...

The biggest portion of this is a pull request from Johannes Berg:

"Please pull my mac80211.git tree per below to get a number of fixes. I
have included a patch from Antonio to fix a memcpy overrun, Felix's
patches for the antenna gain/tx power issues, a few mesh-related fixes
from Javier for mac80211 and my own patches to not access data that
might not be present in an skb at all as well as a patch (the duplicate
IE check one) to make mac80211 forward-compatible with potential future
spec extensions that use the same IE multiple times.

It's a bit bigger than I'd like maybe, but I think all of these are
worthwhile fixes at this point."

In addition...

Felix Fietkau fixes an ath9k use-after-free issue.

Stanislaw Gruszka adds a valid value check to rt2800.

Sven Eckelmann adds a check to only check a TID value in a BlockAck, for
frames that could be either a BlockAck or a normal Ack.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-31 14:59:12 -04:00
stephen hemminger
3c172868cb vxlan: don't expire permanent entries
VXLAN confused flag versus bitmap on state.
Based on part of a earlier patch by David Stevens.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-31 13:42:12 -04:00
John W. Linville
0627291148 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2012-10-31 13:10:01 -04:00
Dirk Hohndel
8d80da90f5 HID: Add support for the MacBook Pro 10,2 keyboard / touchpad
This enables the existing drivers for keyboard and touchpad with the new
USB IDs found on the MBP 13" Reasonable Resolution (also known as the
Retina Display).

Added entries to both keyboard and mouse ignore lists.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-31 10:42:33 +01:00
Xianhan Yu
58ad34bf62 HID: multitouch: fix maxcontacts problem on GeneralTouch
Fix maxcontacts problem for PWT GeneralTouch multi-touchscreen.

Our device didn't contain HID_DG_CONTACTMAX usage. This usage use to describe
touchscreen's maxcontacts for hid-multitouch.c to get maxcontacts automatic. We
fix the device that driver can get maxcontact from our device, hence it doesn't
need .maxcontact=10. Now there is just one device class can fix all our PWT
touchscreen.

Signed-off-by: Xianhan Yu <aroundight77@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-31 10:42:32 +01:00
Alan Cox
65b258e9b5 HID: multitouch: put the case in the right switch statement
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-31 10:42:32 +01:00
Jiri Slaby
3ccc60f9d8 HID: microsoft: fix invalid rdesc for 3k kbd
Microsoft Digital Media Keyboard 3000 has two interfaces, and the
second one has a report descriptor with a bug. The second collection
says:
05 01 -- global; usage page -- 01 -- Generic Desktop Controls
09 80 -- local; usage -- 80 -- System Control
a1 01 -- main; collection -- 01 -- application

85 03 -- global; report ID -- 03
19 00 -- local; Usage Minimum -- 00
29 ff -- local; Usage Maximum -- ff
15 00 -- global; Logical Minimum -- 0
26 ff 00 -- global; Logical Maximum -- ff
81 00 -- main; input

c0 -- main; End Collection

I.e. it makes us think that there are all kinds of usages of system
control. That the keyboard is a not only a keyboard, but also a
joystick, mouse, gamepad, keypad, etc. The same as for the Wireless
Desktop Receiver, this should be Physical Min/Max. So fix that
appropriately.

References: https://bugzilla.novell.com/show_bug.cgi?id=776834
Cc: <stable@vger.kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-31 10:42:32 +01:00
Rolf Eike Beer
32ed1911fc Input: tsc40 - remove wrong announcement of pressure support
The tsc40 driver announces it supports the pressure event, but will never
send one. The announcement will cause tslib to wait for such events and
sending all touch events with a pressure of 0. Removing the announcement
will make tslib fall back to emulating the pressure on touch events so
everything works as expected.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-10-30 23:40:07 -07:00