Commit Graph

335790 Commits

Author SHA1 Message Date
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
Alan Stern 99f91934a9 USB: EHCI: make ehci-platform a separate driver
This patch (as1626) splits the ehci-platform code from ehci-hcd out
into its own separate driver module.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-01 08:51:13 -07:00
Alan Stern adfa79d1c0 USB: EHCI: make ehci-pci a separate driver
This patch (as1625) splits the PCI portion of ehci-hcd out into its
own separate driver module, called ehci-pci.  Consistently with the
current practice, the decision whether to build this module is not
user-configurable.  If EHCI and PCI are enabled then the module will
be built, always.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-01 08:51:12 -07:00
Alan Stern 3e02320399 USB: EHCI: prepare to make ehci-hcd a library module
This patch (as1624) prepares ehci-hcd for being split up into a core
library and separate platform driver modules.  A generic
ehci_hc_driver structure is created, containing all the "standard"
values, and a new mechanism is added whereby a driver module can
specify a set of overrides to those values.  In addition the
ehci_setup(), ehci_suspend(), and ehci_resume() routines need to be
EXPORTed for use by the drivers.

As a side effect of this change, a few routines no longer need to be
marked __maybe_unused.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-01 08:51:12 -07:00
Weston Andros Adamson d24bab93e4 SUNRPC: return proper errno from backchannel_rqst
The one and only caller (in fs/nfs/nfs4client.c) uses the result
as an errno and would have interpreted an error as EPERM.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-11-01 11:50:53 -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
Linus Torvalds 8c23f406c6 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: fix vcpu->mmio_fragments overflow
2012-11-01 08:27:02 -07:00
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
Alex Deucher 6d9cdfc271 drm/radeon: add load detection support for ext DAC on R200 (v2)
The R200 asics use an external DAC for the secondary DAC.
The current KMS code tries to use code for the integrated
TV DAC for R200 which leads to unpredictable results since
R200 does not have an integrated TV DAC. This patch ports
the external DAC load detection support from the UMS
driver to KMS.

v2: fix typo in loop break logic

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Egbert Eich <eich@suse.de>
2012-11-01 10:34:34 -04:00
Egbert Eich f8c4d701ae DRM/radeon: For single CRTC GPUs move handling of CRTC_CRT_ON to crtc_dpms().
On all dual CRTC GPUs the CRTC_CRT_ON in the RADEON_CRTC_EXT_CNTL register
 controls the CRTC of the primary DAC. Therefore it is set in the DAC DMPS
function.
This is different for GPU's with a single CRTC but a primary and a
TV DAC: here it controls the single CRTC no matter where it is routed.
Therefore we set it here. This avoids an elaborate on/off state tracking
since both primary_dac_dpms() and tv_dac_dpms() functions would have
to touch this bit.
On single CRTC GPUs with just one DAC it's irrelevant where this bit
is handled.

agd5f: fix warning

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:34 -04:00
Egbert Eich 701337dc27 DRM/Radeon: Fix TV DAC Load Detection for single CRTC chips.
The RN50 has a TV DAC but only a single CRTC. For load detection this
DAC is controlled by the primary CRTC.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:33 -04:00
Egbert Eich d038db8698 DRM/Radeon: Clean up code in TV DAC load detection.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:32 -04:00
Igor Murzov dfdcbebc54 drm/radeon: fix ATPX function documentation
Fix a copy&pasted documentation.

Signed-off-by: Igor Murzov <e-mail@date.by>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:32 -04:00
Peter Senna Tschudin 74e4ca32a4 drivers/gpu/drm/radeon/evergreen_cs.c: Remove unnecessary semicolon
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r1@
statement S;
position p,p1;
@@
S@p1;@p

@script:python r2@
p << r1.p;
p1 << r1.p1;
@@
if p[0].line != p1[0].line_end:
        cocci.include_match(False)
@@
position r1.p;
@@
-;@p
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:31 -04:00
Egbert Eich fc87f13b8d DRM/Radeon: On DVI-I use Load Detection when EDID is bogus.
The Radeon driver uses the analog/digital flag to determine if the
DAC or the TMDS encoder should be enabled on a DVI-I connector.
If the EDID is bogus this flag is no longer reliable. This fix
adds a fallback to DAC load detection to determine if anything
is connected to the DAC. If not and a (bogus) EDID is found it
assumes a digital display is connected.
This works around problems with some crappy IPMI devices using
Radeon ES1000.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:31 -04:00
Egbert Eich 9c50b1d937 DRM/Radeon: Fix primary DAC Load Detection for RV100 chips.
For Radeon 7500 ATI recommends a DAC_FORCE value of 0x1ac. This value
works better on ES1000 (RV100) chips, too, as it doesn't produce any false
positives on any cards I have tested. Therefore let's assume that this
value is good for all RV100 and RV200 chipset generations.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-11-01 10:34:30 -04:00
Egbert Eich 83325d0721 DRM/Radeon: Fix Load Detection on legacy primary DAC.
An uninitialized variable led to broken load detection.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2012-11-01 10:34:16 -04:00
Jiri Kosina df0cfd6990 HID: hidraw: put old deallocation mechanism in place
This basically reverts commit 4fe9f8e203. It causes multiple problems,
namely:

- after rmmod/modprobe cycle of bus driver, the input is not claimed any
  more. This is likely because of misplaced hid_hw_close()
- it causes memory corruption on hidraw_list

As original patch author is not responding to requests to fix his patch,
and the original deallocation mechanism is not exposing any problems, I
am reverting back to it.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-01 11:33:26 +01:00
Sebastian Andrzej Siewior 2f77116425 usb: musb: remove hand-crafted id handling
This replaced the handcrafted id handling by the PLATFORM_DEVID_AUTO
value which should do the same thing.

This patch probably also fixes ux500 because I did not find the "musbid"
variable to remove. And we close a tiny-unlikely race window becuase the
old code gave the id back before device was destroyed in the remove
case.

[ balbi@ti.com : fixed up two failed hunks when applying patch ]

Cc: B, Ravi <ravibabu@ti.com>
Cc: Santhapuri, Damodar <damodar.santhapuri@ti.com>
Cc: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Cc: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-11-01 12:32:23 +02:00
Kuninori Morimoto 1789e52acc usb: phy: add R-Car USB phy driver
This patch adds Renesas R-Car USB phy driver.
It supports R8A7779 chip at this point.

R-Car has some USB controllers, but has only one phy-initializer.
So, this driver is counting users.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-11-01 12:17:53 +02:00
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 ffe7b0e932
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
Linus Torvalds 33046957cd Sound fixes for 3.7-rc4
This contains unexpectedly many changes in a wide range due to the
 fixes for races at disconnection of USB audio devices.  In the end,
 we end up covering fairly core parts of sound subsystem.
 
 Other than that, just a few usual small fixes.
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Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This contains unexpectedly many changes in a wide range due to the
  fixes for races at disconnection of USB audio devices.  In the end, we
  end up covering fairly core parts of sound subsystem.

  Other than that, just a few usual small fixes."

* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: ice1724: Fix rate setup after resume
  ALSA: Avoid endless sleep after disconnect
  ALSA: Add a reference counter to card instance
  ALSA: usb-audio: Fix races at disconnection in mixer_quirks.c
  ALSA: usb-audio: Use rwsem for disconnect protection
  ALSA: usb-audio: Fix races at disconnection
  ALSA: PCM: Fix some races at disconnection
  ASoC: omap-dmic: Correct functional clock name
  ASoC: zoom2: Fix compile error by including correct header files
  ALSA: hda - Fix mute-LED setup for HP dv5 laptop
2012-10-31 15:38:32 -07:00
Xiao Guangrong 87da7e66a4 KVM: x86: fix vcpu->mmio_fragments overflow
After commit b3356bf0db (KVM: emulator: optimize "rep ins" handling),
the pieces of io data can be collected and write them to the guest memory
or MMIO together

Unfortunately, kvm splits the mmio access into 8 bytes and store them to
vcpu->mmio_fragments. If the guest uses "rep ins" to move large data, it
will cause vcpu->mmio_fragments overflow

The bug can be exposed by isapc (-M isapc):

[23154.818733] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
[ ......]
[23154.858083] Call Trace:
[23154.859874]  [<ffffffffa04f0e17>] kvm_get_cr8+0x1d/0x28 [kvm]
[23154.861677]  [<ffffffffa04fa6d4>] kvm_arch_vcpu_ioctl_run+0xcda/0xe45 [kvm]
[23154.863604]  [<ffffffffa04f5a1a>] ? kvm_arch_vcpu_load+0x17b/0x180 [kvm]

Actually, we can use one mmio_fragment to store a large mmio access then
split it when we pass the mmio-exit-info to userspace. After that, we only
need two entries to store mmio info for the cross-mmio pages access

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-10-31 20:36:30 -02:00
Weston Andros Adamson 324d003b0c NFS: add nfs_sb_deactive_async to avoid deadlock
Use nfs_sb_deactive_async instead of nfs_sb_deactive when in a workqueue
context.  This avoids a deadlock where rpc_shutdown_client loops forever
in a workqueue kworker context, trying to kill all RPC tasks associated with
the client, while one or more of these tasks have already been assigned to the
same kworker (and will never run rpc_exit_task).

This approach is needed because RPC tasks that have already been assigned
to a kworker by queue_work cannot be canceled, as explained in the comment
for workqueue.c:insert_wq_barrier.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
[Trond: add module_get/put.]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-10-31 16:26:26 -04:00
Ben Hutchings 97a5486826 nfs: Show original device name verbatim in /proc/*/mount{s,info}
Since commit c7f404b ('vfs: new superblock methods to override
/proc/*/mount{s,info}'), nfs_path() is used to generate the mounted
device name reported back to userland.

nfs_path() always generates a trailing slash when the given dentry is
the root of an NFS mount, but userland may expect the original device
name to be returned verbatim (as it used to be).  Make this
canonicalisation optional and change the callers accordingly.

[jrnieder@gmail.com: use flag instead of bool argument]
Reported-and-tested-by: Chris Hiestand <chiestand@salk.edu>
Reference: http://bugs.debian.org/669314
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: <stable@vger.kernel.org> # v2.6.39+
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-10-31 16:26:26 -04:00
Scott Mayhew acce94e68a nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts
In very busy v3 environment, rpc.mountd can respond to the NULL
procedure but not the MNT procedure in a timely manner causing
the MNT procedure to time out. The problem is the mount system
call returns EIO which causes the mount to fail, instead of
ETIMEDOUT, which would cause the mount to be retried.

This patch sets the RPC_TASK_SOFT|RPC_TASK_TIMEOUT flags to
the rpc_call_sync() call in nfs_mount() which causes
ETIMEDOUT to be returned on timed out connections.

Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
2012-10-31 16:26:25 -04:00
Yanchuan Nian 7175fe9015 nfs: Check whether a layout pointer is NULL before free it
The new layout pointer in pnfs_find_alloc_layout() may be NULL because of
out of memory. we must do some check work, otherwise pnfs_free_layout_hdr()
will go wrong because it can not deal with a NULL pointer.

Signed-off-by: Yanchuan Nian <ycnian@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-10-31 16:26:25 -04:00
NeilBrown 8d96b10639 NFS: fix bug in legacy DNS resolver.
The DNS resolver's use of the sunrpc cache involves a 'ttl' number
(relative) rather that a timeout (absolute).  This confused me when
I wrote
  commit c5b29f885a
     "sunrpc: use seconds since boot in expiry cache"

and I managed to break it.  The effect is that any TTL is interpreted
as 0, and nothing useful gets into the cache.

This patch removes the use of get_expiry() - which really expects an
expiry time - and uses get_uint() instead, treating the int correctly
as a ttl.

This fixes a regression that has been present since 2.6.37, causing
certain NFS accesses in certain environments to incorrectly fail.

Reported-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-10-31 16:25:59 -04:00
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
Bjørn Mork 7c83b44836 USB: option: idVendor and idProduct are __le16
The exception is needed on big endian systems too.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:58:12 -07:00
Bjørn Mork dbdf680703 USB: option: replace vendor probe rule with match flags
No need for a vendor specific probe exception just to
match on the interface class.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:58:12 -07:00
Bjørn Mork 17b72feb2b USB: add USB_DEVICE_INTERFACE_CLASS macro
Matching on device and interface class with with unspecified
subclass and protocol is sometimes useful.  This is slightly
different from USB_DEVICE_AND_INTERFACE_INFO which requires
the full interface class/subclass/protocol triplet.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:58:11 -07:00
Bjørn Mork 1b95bee563 USB: option: never bind to a usb-storage interface
There are many modems in addition to the D-Link DWM 652
exposing the CD interface in modem mode, and some expose
an integrated card reader as well. Always ignore these
interfaces.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:58:11 -07:00
Alan Stern c73cee717e USB: EHCI: remove ehci_port_power() routine
This patch (as1623) removes the ehci_port_power() routine and all the
places that call it.  There's no reason for ehci-hcd to change the
port power settings; the hub driver takes care of all that stuff.

There is one exception: When the controller is resumed from
hibernation or following a loss of power, the ports that are supposed
to be handed over to a companion controller must be powered on first.
Otherwise the handover won't work.  This process is not visible to the
hub driver, so it has to be handled in ehci-hcd.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:48:07 -07:00
Alan Stern 4968f95191 USB: EHCI: remove unused Link Power Management code
This patch (as1622) removes the USB-2.1 Link Power Management code
from the ehci-hcd driver.  This code was never integrated with
usbcore, it is full of bugs, and it was not getting used by anybody.

However, the debugging code for dumping the LPM-related fields in the
EHCI registers is left in place.  In theory it might be useful to see
these values, even though we don't use them.

This essentially amounts to a partial revert of commit
aa4d834298 (USB: EHCI: EHCI 1.1
addendum: preparation) and an almost full revert of commit
48f2497014 (USB: EHCI: EHCI 1.1
addendum: Basic LPM feature support) plus its follow-ons.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:48:07 -07:00
Alan Stern 571e41214e USB: remove iteration limit in hub_tt_work()
This patch (as1621) removes the limit on the number of loops allowed
in hub_tt_work().  The value is arbitrary, and it's silly to have a
limit in the first place -- anything beyond the limit would not get
handled.

Besides, it's most unlikely that we'll ever need to clear more than a
couple of TT buffers at any time.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:48:07 -07:00
Johan Hovold bcbec053d2 USB: serial: remove driver version information
Remove all MODULE_VERSION macros and driver-version information (except
for garmin_gps which uses it in a status reply).

It is the kernel version that matters and not some private version
scheme which rarely even gets updated.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-31 12:48:06 -07:00