Commit Graph

455474 Commits

Author SHA1 Message Date
Florian Fainelli 3b140a6788 net: systemport: do not clear IFF_MULTICAST flag
The SYSTEMPORT Ethernet MAC supports multicast just fine, it just lacks
any sort of Unicast/Broadcast/Multicasting filtering at the Ethernet MAC
level since that is handled by the front end Ethernet switch, but that
is properly handled by bcm_sysport_set_rx_mode().

Some user-space applications might be relying on the presence of this
flag to prevent using multicast sockets, this also prevents that
interface from joining the IPv6 all-router mcast group.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-01 17:10:16 -07:00
Eric Dumazet 07b0f00964 bnx2x: fix possible panic under memory stress
While it is legal to kfree(NULL), it is not wise to use :
put_page(virt_to_head_page(NULL))

 BUG: unable to handle kernel paging request at ffffeba400000000
 IP: [<ffffffffc01f5928>] virt_to_head_page+0x36/0x44 [bnx2x]

Reported-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Fixes: d46d132cc0 ("bnx2x: use netdev_alloc_frag()")
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-01 12:20:20 -07:00
Eric Dumazet 7f50236153 ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix
We have two different ways to handle changes to sk->sk_dst

First way (used by TCP) assumes socket lock is owned by caller, and use
no extra lock : __sk_dst_set() & __sk_dst_reset()

Another way (used by UDP) uses sk_dst_lock because socket lock is not
always taken. Note that sk_dst_lock is not softirq safe.

These ways are not inter changeable for a given socket type.

ipv4_sk_update_pmtu(), added in linux-3.8, added a race, as it used
the socket lock as synchronization, but users might be UDP sockets.

Instead of converting sk_dst_lock to a softirq safe version, use xchg()
as we did for sk_rx_dst in commit e47eb5dfb2 ("udp: ipv4: do not use
sk_dst_lock from softirq context")

In a follow up patch, we probably can remove sk_dst_lock, as it is
only used in IPv6.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Fixes: 9cb3a50c5f ("ipv4: Invalidate the socket cached route on pmtu events if possible")
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-30 23:40:58 -07:00
Denis Kirjanov dba63115ce powerpc: bpf: Fix the broken LD_VLAN_TAG_PRESENT test
We have to return the boolean here if the tag presents
or not, not just ANDing the TCI with the mask which results to:

[  709.412097] test_bpf: #18 LD_VLAN_TAG_PRESENT
[  709.412245] ret 4096 != 1
[  709.412332] ret 4096 != 1
[  709.412333] FAIL (2 times)

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 16:14:12 -07:00
Denis Kirjanov 3fc60aa097 powerpc: bpf: Use correct mask while accessing the VLAN tag
To get a full tag (and not just a VID) we should access the TCI
except the VLAN_TAG_PRESENT field (which means that 802.1q header
is present). Also ensure that the VLAN_TAG_PRESENT stay on its place

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 16:14:12 -07:00
Hangbin Liu e940f5d6ba ipv6: Fix MLD Query message check
Based on RFC3810 6.2, we also need to check the hop limit and router alert
option besides source address.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 00:21:50 -07:00
James M Leddy 3e215c8d1b udp: Add MIB counters for rcvbuferrors
Add MIB counters for rcvbuferrors in UDP to help diagnose problems.

Signed-off-by: James M Leddy <james.leddy@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 00:20:55 -07:00
Yijing Wang 73413ffac3 bnx2x: Fix the MSI flags
MSI-X should use PCI_MSIX_FLAGS not PCI_MSI_FLAGS.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:36:49 -07:00
Linus Torvalds d7933ab727 Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
 "Small set of misc cifs/smb3 fixes"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  [CIFS] fix mount failure with broken pathnames when smb3 mount with mapchars option
  cifs: revalidate mapping prior to satisfying read_iter request with cache=loose
  fs/cifs: fix regression in cifs_create_mf_symlink()
2014-06-25 21:47:28 -07:00
Linus Torvalds 2a80ff867f Various minor fixes
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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:
 "Various minor fixes"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (gpio-fan) Change name used in hwmon_device_register_with_groups
  hwmon: (emc1403) Fix missing 'select REGMAP_I2C' in Kconfig
  hwmon: (ntc_thermistor) Use the manufacturer name properly
  devicetree: bindings: Document murata vendor prefix
  hwmon: (w83l786ng) Report correct minimum fan speed
2014-06-25 21:38:45 -07:00
Linus Torvalds f40ede392d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix crash in ipvs tot_stats estimator, from Julian Anastasov.

 2) Fix OOPS in nf_nat on netns removal, from Florian Westphal.

 3) Really really really fix locking issues in slip and slcan tty write
    wakeups, from Tyler Hall.

 4) Fix checksum offloading in fec driver, from Fugang Duan.

 5) Off by one in BPF instruction limit test, from Kees Cook.

 6) Need to clear all TSO capability flags when doing software TSO in
    tg3 driver, from Prashant Sreedharan.

 7) Fix memory leak in vlan_reorder_header() error path, from Li
    RongQing.

 8) Fix various bugs in xen-netfront and xen-netback multiqueue support,
    from David Vrabel and Wei Liu.

 9) Fix deadlock in cxgb4 driver, from Li RongQing.

10) Prevent double free of no-cache DST entries, from Eric Dumazet.

11) Bad csum_start handling in skb_segment() leads to crashes when
    forwarding, from Tom Herbert.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
  net: fix setting csum_start in skb_segment()
  ipv4: fix dst race in sk_dst_get()
  net: filter: Use kcalloc/kmalloc_array to allocate arrays
  trivial: net: filter: Change kerneldoc parameter order
  trivial: net: filter: Fix typo in comment
  net: allwinner: emac: Add missing free_irq
  cxgb4: use dev_port to identify ports
  xen-netback: bookkeep number of active queues in our own module
  tg3: Change nvram command timeout value to 50ms
  cxgb4: Not need to hold the adap_rcu_lock lock when read adap_rcu_list
  be2net: fix qnq mode detection on VFs
  of: mdio: fixup of_phy_register_fixed_link parsing of new bindings
  at86rf230: fix irq setup
  net: phy: at803x: fix coccinelle warnings
  net/mlx4_core: Fix the error flow when probing with invalid VF configuration
  tulip: Poll link status more frequently for Comet chips
  net: huawei_cdc_ncm: increase command buffer size
  drivers: net: cpsw: fix dual EMAC stall when connected to same switch
  xen-netfront: recreate queues correctly when reconnecting
  xen-netfront: fix oops when disconnected from backend
  ...
2014-06-25 21:08:24 -07:00
Tom Herbert de843723f9 net: fix setting csum_start in skb_segment()
Dave Jones reported that a crash is occurring in

csum_partial
tcp_gso_segment
inet_gso_segment
? update_dl_migration
skb_mac_gso_segment
__skb_gso_segment
dev_hard_start_xmit
sch_direct_xmit
__dev_queue_xmit
? dev_hard_start_xmit
dev_queue_xmit
ip_finish_output
? ip_output
ip_output
ip_forward_finish
ip_forward
ip_rcv_finish
ip_rcv
__netif_receive_skb_core
? __netif_receive_skb_core
? trace_hardirqs_on
__netif_receive_skb
netif_receive_skb_internal
napi_gro_complete
? napi_gro_complete
dev_gro_receive
? dev_gro_receive
napi_gro_receive

It looks like a likely culprit is that SKB_GSO_CB()->csum_start is
not set correctly when doing non-scatter gather. We are using
offset as opposed to doffset.

Reported-by: Dave Jones <davej@redhat.com>
Tested-by: Dave Jones <davej@redhat.com>
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 7e2b10c1e5 ("net: Support for multiple checksums with gso")
Acked-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 20:45:54 -07:00
Linus Torvalds ec71feae06 NFS client fixes for Linux 3.16
Highlights include:
 
 - Stable fix for a data corruption case due to incorrect cache validation
 - Fix a couple of false positive cache invalidations
 - Fix NFSv4 security negotiation issues
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Merge tag 'nfs-for-3.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:
 "Highlights include:

   - Stable fix for a data corruption case due to incorrect cache
     validation
   - Fix a couple of false positive cache invalidations
   - Fix NFSv4 security negotiation issues"

* tag 'nfs-for-3.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4: test SECINFO RPC_AUTH_GSS pseudoflavors for support
  NFS Return -EPERM if no supported or matching SECINFO flavor
  NFS check the return of nfs4_negotiate_security in nfs4_submount
  NFS: Don't mark the data cache as invalid if it has been flushed
  NFS: Clear NFS_INO_REVAL_PAGECACHE when we update the file size
  nfs: Fix cache_validity check in nfs_write_pageuptodate()
2014-06-25 20:06:06 -07:00
Eric Dumazet f886497212 ipv4: fix dst race in sk_dst_get()
When IP route cache had been removed in linux-3.6, we broke assumption
that dst entries were all freed after rcu grace period. DST_NOCACHE
dst were supposed to be freed from dst_release(). But it appears
we want to keep such dst around, either in UDP sockets or tunnels.

In sk_dst_get() we need to make sure dst refcount is not 0
before incrementing it, or else we might end up freeing a dst
twice.

DST_NOCACHE set on a dst does not mean this dst can not be attached
to a socket or a tunnel.

Then, before actual freeing, we need to observe a rcu grace period
to make sure all other cpus can catch the fact the dst is no longer
usable.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dormando <dormando@rydia.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 17:41:44 -07:00
Tobias Klauser 99e72a0fed net: filter: Use kcalloc/kmalloc_array to allocate arrays
Use kcalloc/kmalloc_array to make it clear we're allocating arrays. No
integer overflow can actually happen here, since len/flen is guaranteed
to be less than BPF_MAXINSNS (4096). However, this changed makes sure
we're not going to get one if BPF_MAXINSNS were ever increased.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:40:02 -07:00
Tobias Klauser 677a9fd3e6 trivial: net: filter: Change kerneldoc parameter order
Change the order of the parameters to sk_unattached_filter_create() in
the kerneldoc to reflect the order they appear in the actual function.

This fix is only cosmetic, in the generated doc they still appear in the
correct order without the fix.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:38:54 -07:00
Tobias Klauser 285276e72c trivial: net: filter: Fix typo in comment
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:38:54 -07:00
Maxime Ripard b91113282b net: allwinner: emac: Add missing free_irq
If the mdio probe function fails in emac_open, the interrupt we just requested
isn't freed. If emac_open is called again, for example because we try to set up
the interface again, the kernel will oops because the interrupt wasn't properly
released.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.11+
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:31:17 -07:00
Thadeu Lima de Souza Cascardo 40c9f8ab6c cxgb4: use dev_port to identify ports
Commit 3f85944fe2 ("net: Add sysfs file
for port number") introduce dev_port to network devices. cxgb4 adapters
have multiple ports on the same PCI function, and used dev_id to
identify those ports. That use was removed by commit
8c367fcbe6 ("cxgb4: Do not set
net_device::dev_id to VI index"), since dev_id should be used only when
devices share the same MAC address.

Using dev_port for cxgb4 allows different ports on the same PCI function
to be identified.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:01:54 -07:00
Wei Liu f7b50c4e7c xen-netback: bookkeep number of active queues in our own module
The original code uses netdev->real_num_tx_queues to bookkeep number of
queues and invokes netif_set_real_num_tx_queues to set the number of
queues. However, netif_set_real_num_tx_queues doesn't allow
real_num_tx_queues to be smaller than 1, which means setting the number
to 0 will not work and real_num_tx_queues is untouched.

This is bogus when xenvif_free is invoked before any number of queues is
allocated. That function needs to iterate through all queues to free
resources. Using the wrong number of queues results in NULL pointer
dereference.

So we bookkeep the number of queues in xen-netback to solve this
problem. This fixes a regression introduced by multiqueue patchset in
3.16-rc1.

There's another bug in original code that the real number of RX queues
is never set. In current Xen multiqueue design, the number of TX queues
and RX queues are in fact the same. We need to set the numbers of TX and
RX queues to the same value.

Also remove xenvif_select_queue and leave queue selection to core
driver, as suggested by David Miller.

Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
CC: Ian Campbell <ian.campbell@citrix.com>
CC: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 15:59:47 -07:00
Prashant Sreedharan 66c965f5e1 tg3: Change nvram command timeout value to 50ms
Commit 506724c463 "tg3: Override clock,
link aware and link idle mode during NVRAM dump" changed the timeout
value for nvram command execution from 100ms to 1ms. But the 1ms
timeout value was only sufficient for nvram read operations but not
write operations for most of the devices supported by tg3 driver.
This patch sets the MAX to 50ms. Also it uses usleep_range instead
of udelay.

Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 15:56:21 -07:00
Julien D'Ascenzio d26e0da783 hwmon: (gpio-fan) Change name used in hwmon_device_register_with_groups
Since commit 648cd48c9e
The hwmon name attributes must not include '-' so the name must be
rename from gpio-fan to gpio_fan

Signed-off-by: Julien D'Ascenzio <jdascenzio@yahoo.fr>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 15:16:09 -07:00
Linus Torvalds 456febd299 ARM: SoC fixes for 3.16
A new set of bug fixes for 3.16, containing patches for seven platforms:
 
 at91:
     - drivers/misc fix for Kconfig PWM symbol
     - correction of several values in DT after conversion to CCF
     - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
 
 imx:
     - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
       because controller base CD/WP is not working in esdhc driver due to
       runtime PM support
     - A couple of random ventana gw5xxx board fixes
     - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
       IPUv3 driver out of staging tree
     - Fix enet/fec clock selection on imx6sl
     - Fix display node on imx53-m53evk board
     - A couple of Cubox-i updates from Russell, which were omitted from
       the merge window due to dependency
 
 integrator:
     - fix an OF-related regression against 3.15
 
 mvebu:
     - mvebu (v7)
        - Fix broken SoC ID detection
        - Select ARM_CPU_SUSPEND for v7
        - Remove armada38x compatible string (no users yet)
        - Enable Dove SoC in mvebu_v7_defconfig
     - kirkwood
        - Fix phy-connection-type on GuruPlug board
 
 qcom:
     - enable gsbi driver in defconfig
     - fix section mismatch warning in serial driver
 
 samsung:
     - use WFI macro in platform_do_lowpower because exynos cpuhotplug
       includes a hardcoded WFI instruction and it causes compile error
       in Thumb-2 mode.
     - fix GIC reg sizes for exynos4 SoCs
     - remove reset timer counter value during boot and resume for mct
       to fix a big jump in printk timestamps
     - fix pm code to check cortex-A9 for another exynos SoCs
     - don't rely on firmware's secondary_cpu_start for mcpm
 
 sti:
     - Ethernet clocks were wrongly defined for STiH415/416 platforms
     - STiH416 B2020 revision E DTS file name contained uppercase, change to
       lowercase.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A new set of bug fixes for 3.16, containing patches for seven
  platforms:

  at91:
    - drivers/misc fix for Kconfig PWM symbol
    - correction of several values in DT after conversion to CCF
    - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc

  imx:
    - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
      because controller base CD/WP is not working in esdhc driver due to
      runtime PM support
    - A couple of random ventana gw5xxx board fixes
    - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
      IPUv3 driver out of staging tree
    - Fix enet/fec clock selection on imx6sl
    - Fix display node on imx53-m53evk board
    - A couple of Cubox-i updates from Russell, which were omitted from
      the merge window due to dependency

  integrator:
    - fix an OF-related regression against 3.15

  mvebu:
    - mvebu (v7)
       - Fix broken SoC ID detection
       - Select ARM_CPU_SUSPEND for v7
       - Remove armada38x compatible string (no users yet)
       - Enable Dove SoC in mvebu_v7_defconfig
    - kirkwood
       - Fix phy-connection-type on GuruPlug board

  qcom:
    - enable gsbi driver in defconfig
    - fix section mismatch warning in serial driver

  samsung:
    - use WFI macro in platform_do_lowpower because exynos cpuhotplug
      includes a hardcoded WFI instruction and it causes compile error
      in Thumb-2 mode.
    - fix GIC reg sizes for exynos4 SoCs
    - remove reset timer counter value during boot and resume for mct
      to fix a big jump in printk timestamps
    - fix pm code to check cortex-A9 for another exynos SoCs
    - don't rely on firmware's secondary_cpu_start for mcpm

  sti:
    - Ethernet clocks were wrongly defined for STiH415/416 platforms
    - STiH416 B2020 revision E DTS file name contained uppercase, change to
      lowercase"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits)
  ARM: at91/dt: sam9261: remove slow RC osc
  ARM: at91/dt: define sam9261ek slow crystal frequency
  ARM: at91/dt: sam9261: correctly define mainck
  ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
  ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
  misc: atmel_pwm: fix Kconfig symbols
  ARM: integrator: fix OF-related regression
  ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard
  ARM: dts: kirkwood: fix phy-connection-type for Guruplug
  ARM: EXYNOS: Don't rely on firmware's secondary_cpu_start for mcpm
  ARM: dts: imx51-eukrea-mbimxsd51-baseboard: unbreak esdhc.
  ARM: dts: imx51-babbage: Fix esdhc setup
  ARM: dts: mx5: Move the display out of soc {} node
  ARM: dts: mx5: Fix IPU port node placement
  ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
  ARM: mvebu: Fix broken SoC ID detection
  ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX_IPUV3_CORE
  ARM: multi_v7_defconfig: Add QCOM GSBI driver
  ARM: stih41x: Rename stih416-b2020-revE.dts to stih416-b2020e.dts
  tty: serial: msm: Fix section mismatch warning
  ...
2014-06-25 12:19:01 -07:00
Arnd Bergmann 6c9d161788 First AT91 fixes batch for 3.16:
- drivers/misc fix for Kconfig PWM symbol
 - correction of several values in DT after conversion to CCF
 - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

Merge "First AT91 fixes batch for 3.16" from Nicolas Ferre:

- drivers/misc fix for Kconfig PWM symbol
- correction of several values in DT after conversion to CCF
- fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/dt: sam9261: remove slow RC osc
  ARM: at91/dt: define sam9261ek slow crystal frequency
  ARM: at91/dt: sam9261: correctly define mainck
  ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
  ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
  misc: atmel_pwm: fix Kconfig symbols
2014-06-25 20:27:15 +02:00
Arnd Bergmann 6d12e79698 mvebu fixes for v3.16
- mvebu
     - Fix broken SoC ID detection
     - Select ARM_CPU_SUSPEND for v7
     - Remove armada38x compatible string (no users yet)
 
  - kirkwood
     - Fix phy-connection-type on GuruPlug board
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Merge tag 'mvebu-fixes-3.16' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu fixes for v3.16" from Jason Cooper:

 - mvebu
    - Fix broken SoC ID detection
    - Select ARM_CPU_SUSPEND for v7
    - Remove armada38x compatible string (no users yet)

 - kirkwood
    - Fix phy-connection-type on GuruPlug board

* tag 'mvebu-fixes-3.16' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard
  ARM: dts: kirkwood: fix phy-connection-type for Guruplug
  ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
  ARM: mvebu: Fix broken SoC ID detection
2014-06-25 20:26:30 +02:00
Linus Torvalds 15e52d9a81 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fix from Sage Weil:
 "This fixes a corner case for cloned RBD images"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: handle parent_overlap on writes correctly
2014-06-25 10:34:17 -07:00
Alexandre Belloni 971dc9ce10 ARM: at91/dt: sam9261: remove slow RC osc
The at91sam9261 doesn't actually have a slow RC oscillator, remove it from the
dtsi.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 18:00:17 +02:00
Alexandre Belloni 78ca2ec920 ARM: at91/dt: define sam9261ek slow crystal frequency
Define at91sam9261ek's slow crystal frequencies.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 17:50:08 +02:00
Alexandre Belloni 5de4728450 ARM: at91/dt: sam9261: correctly define mainck
mainck (CKGR_MCFR register) is actually using main_osc (CKGR_MOR register).

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 17:50:08 +02:00
Alexandre Belloni 8cbff69ca9 ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
ICPLL can only take 0 or 1, it got mixed with OUT which can be in the [0-3]
range.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 17:50:07 +02:00
Alexandre Belloni b6616f11a8 ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
ICPLL can only take 0 or 1, it got mixed with OUT which can be in the [0-3]
range.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 17:50:07 +02:00
Josef Gajdusek adb578355f hwmon: (emc1403) Fix missing 'select REGMAP_I2C' in Kconfig
In commit 4cab259f, the emc1403 driver was converted to use regmap but the
necessary Kconfig option was not added.

Signed-off-by: Josef Gajdusek <atx@atx.name>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 07:29:22 -07:00
Naveen Krishna Chatradhi 8b6f5e0f19 hwmon: (ntc_thermistor) Use the manufacturer name properly
Murata Manufacturing Co., Ltd is the vendor for
NTC (Negative Temperature coefficient) based Thermistors.
But, the driver extensively uses "NTC" as the vendor name.

This patch corrects the vendor name also updates the
compatibility strings according to the vendor-prefix.txt

Note: Drivers continue to support the previous compatible strings
but further addition of these compatible strings in device tree
is deprecated.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 07:09:13 -07:00
Naveen Krishna Chatradhi eab2014421 devicetree: bindings: Document murata vendor prefix
Add Murata Manufacturing Co., Ltd. to the list of device tree
vendor prefixes.

Murata manufactures NTC (Negative Temperature Coefficient) based
Thermistors for small scale applications like Mobiles and PDAs.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 07:08:57 -07:00
Axel Lin a8d4d82e50 hwmon: (w83l786ng) Report correct minimum fan speed
Current code is buggy, it shows the current fan speed as minimum fan speed.
Fix up show_fan_reg macro to correctly report fan and fan_min speed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Kevin Lo <kevlo@kevlo.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 06:59:39 -07:00
Linus Torvalds d91d66e88e Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes and cleanups from Ben Herrenschmidt:
 "Here are a handful or two of powerpc fixes and simple/trivial
  cleanups.  A bunch of them fix ftrace with the new ABI v2 in Little
  Endian, the rest is a scattering of fairly simple things"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Don't skip ePAPR spin-table CPUs
  powerpc/module: Fix TOC symbol CRC
  powerpc/powernv: Remove OPAL v1 takeover
  powerpc/kmemleak: Do not scan the DART table
  selftests/powerpc: Use the test harness for the TM DSCR test
  powerpc/cell: cbe_thermal.c: Cleaning up a variable is of the wrong type
  powerpc/kprobes: Fix jprobes on ABI v2 (LE)
  powerpc/ftrace: Use pr_fmt() to namespace error messages
  powerpc/ftrace: Fix nop of modules on 64bit LE (ABIv2)
  powerpc/ftrace: Fix inverted check of create_branch()
  powerpc/ftrace: Fix typo in mask of opcode
  powerpc: Add ppc_global_function_entry()
  powerpc/macintosh/smu.c: Fix closing brace followed by if
  powerpc: Remove __arch_swab*
  powerpc: Remove ancient DEBUG_SIG code
  powerpc/kerenl: Enable EEH for IO accessors
2014-06-25 05:44:17 -07:00
Linus Torvalds 07f4695c62 vhost: infrastructure fixes for 3.16
Two cleanup patches removing code duplication that got introduced by changes in
 rc1.  Not fixing crashes, but I'd rather not carry the duplicate code until the
 next merge window.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull vhost cleanups from Michael S Tsirkin:
 "Two cleanup patches removing code duplication that got introduced by
  changes in rc1.  Not fixing crashes, but I'd rather not carry the
  duplicate code until the next merge window"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost-scsi: don't open-code kvfree
  vhost-net: don't open-code kvfree
2014-06-25 05:30:20 -07:00
Linus Torvalds b8e46d22dc This includes three patches from Oleg Nesterov. The first is a fix to a
race condition that happens between enabling/disabling syscall tracepoints
 and new process creations (the check to go into the ptrace path for a process
 can be set when it shouldn't, or not set when it should). Not a major bug
 but one that should be fixed and even applied to stable.
 
 The other two patches are cleanup/fixes that are not that critical, but
 for an -rc1 release would be nice to have. They both deal with syscall
 tracepoints.
 
 It also includes a patch to introduce a new macro for the TRACE_EVENT()
 format called __field_struct(). Originally, __field() was used to record
 any variable into a trace event, but with the addition of setting the
 "is signed" attribute, the check causes anything but a primitive variable
 to fail to compile. That is, structs and unions can't be used as they
 once were. When the "is signed" check was introduce there were only
 primitive variables being recorded. But that will change soon and it
 was reported that __field() causes build failures.
 
 To solve the __field() issue, __field_struct() is introduced to allow
 trace_events to be able to record complex types too.
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Merge tag 'trace-fixes-v3.16-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing cleanups and fixes from Steven Rostedt:
 "This includes three patches from Oleg Nesterov.  The first is a fix to
  a race condition that happens between enabling/disabling syscall
  tracepoints and new process creations (the check to go into the ptrace
  path for a process can be set when it shouldn't, or not set when it
  should).  Not a major bug but one that should be fixed and even
  applied to stable.

  The other two patches are cleanup/fixes that are not that critical,
  but for an -rc1 release would be nice to have.  They both deal with
  syscall tracepoints.

  It also includes a patch to introduce a new macro for the
  TRACE_EVENT() format called __field_struct().  Originally, __field()
  was used to record any variable into a trace event, but with the
  addition of setting the "is signed" attribute, the check causes
  anything but a primitive variable to fail to compile.  That is,
  structs and unions can't be used as they once were.  When the "is
  signed" check was introduce there were only primitive variables being
  recorded.  But that will change soon and it was reported that
  __field() causes build failures.

  To solve the __field() issue, __field_struct() is introduced to allow
  trace_events to be able to record complex types too"

* tag 'trace-fixes-v3.16-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Add __field_struct macro for TRACE_EVENT()
  tracing: syscall_regfunc() should not skip kernel threads
  tracing: Change syscall_*regfunc() to check PF_KTHREAD and use for_each_process_thread()
  tracing: Fix syscall_*regfunc() vs copy_process() race
2014-06-25 05:08:09 -07:00
Nicolas Ferre 8dcd598c74 misc: atmel_pwm: fix Kconfig symbols
AT91 symbols AT91SAM9263, AT91SAM9RL, and AT91SAM9G45 do not exist and this
patch changes them to their correct ARCH_* version.
These symbols are chosen instead of the SOC_* ones because this driver is not
converted to DT.
Anyway, the ATMEL_PWM symbol and the associated driver will be removed soon,
during the move to the PWM sub-system.

Reported-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 13:49:53 +02:00
Scott Wood 6663a4fa67 powerpc: Don't skip ePAPR spin-table CPUs
Commit 59a53afe70 "powerpc: Don't setup
CPUs with bad status" broke ePAPR SMP booting.  ePAPR says that CPUs
that aren't presently running shall have status of disabled, with
enable-method being used to determine whether the CPU can be enabled.

Fix by checking for spin-table, which is currently the only supported
enable-method.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Emil Medve <Emilian.Medve@Freescale.com>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-06-25 13:10:49 +10:00
Laurent Dufour c2cbcf533a powerpc/module: Fix TOC symbol CRC
The commit 71ec7c55ed introduced the magic symbol ".TOC." for ELFv2 ABI.
This symbol is built manually and has no CRC value computed. A zero value
is put in the CRC section to avoid modpost complaining about a missing CRC.
Unfortunately, this breaks the kernel module loading when the kernel is
relocated (kdump case for instance) because of the relocation applied to
the kcrctab values.

This patch compute a CRC value for the TOC symbol which will match the one
compute by the kernel when it is relocated - aka '0 - relocate_start' done in
maybe_relocated called by check_version (module.c).

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Cc: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-06-25 13:10:48 +10:00
Michael Ellerman e2500be2b8 powerpc/powernv: Remove OPAL v1 takeover
In commit 27f4488872 "Add OPAL takeover from PowerVM" we added support
for "takeover" on OPAL v1 machines.

This was a mode of operation where we would boot under pHyp, and query
for the presence of OPAL. If detected we would then do a special
sequence to take over the machine, and the kernel would end up running
in hypervisor mode.

OPAL v1 was never a supported product, and was never shipped outside
IBM. As far as we know no one is still using it.

Newer versions of OPAL do not use the takeover mechanism. Although the
query for OPAL should be harmless on machines with newer OPAL, we have
seen a machine where it causes a crash in Open Firmware.

The code in early_init_devtree() to copy boot_command_line into cmd_line
was added in commit 817c21ad9a "Get kernel command line accross OPAL
takeover", and AFAIK is only used by takeover, so should also be
removed.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-06-25 13:10:47 +10:00
Li RongQing ee9a33b263 cxgb4: Not need to hold the adap_rcu_lock lock when read adap_rcu_list
cxgb4_netdev maybe lead to dead lock, since it uses a spin lock, and be called
in both thread and softirq context, but not disable BH, the lockdep report is
below; In fact, cxgb4_netdev only reads adap_rcu_list with RCU protection, so
not need to hold spin lock again.
	=================================
	[ INFO: inconsistent lock state ]
	3.14.7+ #24 Tainted: G         C O
	---------------------------------
	inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
	radvd/3794 [HC0[0]:SC1[1]:HE1:SE0] takes:
	 (adap_rcu_lock){+.?...}, at: [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
	{SOFTIRQ-ON-W} state was registered at:
	  [<ffffffff810fca81>] __lock_acquire+0x34a/0xe48
	  [<ffffffff810fd98b>] lock_acquire+0x82/0x9d
	  [<ffffffff815d6ff8>] _raw_spin_lock+0x34/0x43
	  [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
	  [<ffffffffa0998beb>] cxgb4_inet6addr_handler+0x117/0x12c [cxgb4]
	  [<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
	  [<ffffffff815da9f9>] __atomic_notifier_call_chain+0x44/0x6e
	  [<ffffffff815daa32>] atomic_notifier_call_chain+0xf/0x11
	  [<ffffffff815b1356>] inet6addr_notifier_call_chain+0x16/0x18
	  [<ffffffffa01f72e5>] ipv6_add_addr+0x404/0x46e [ipv6]
	  [<ffffffffa01f8df0>] addrconf_add_linklocal+0x5f/0x95 [ipv6]
	  [<ffffffffa01fc3e9>] addrconf_notify+0x632/0x841 [ipv6]
	  [<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
	  [<ffffffff810e09a1>] __raw_notifier_call_chain+0x9/0xb
	  [<ffffffff810e09b2>] raw_notifier_call_chain+0xf/0x11
	  [<ffffffff8151b3b7>] call_netdevice_notifiers_info+0x4e/0x56
	  [<ffffffff8151b3d0>] call_netdevice_notifiers+0x11/0x13
	  [<ffffffff8151c0a6>] netdev_state_change+0x1f/0x38
	  [<ffffffff8152f004>] linkwatch_do_dev+0x3b/0x49
	  [<ffffffff8152f184>] __linkwatch_run_queue+0x10b/0x144
	  [<ffffffff8152f1dd>] linkwatch_event+0x20/0x27
	  [<ffffffff810d7bc0>] process_one_work+0x1cb/0x2ee
	  [<ffffffff810d7e3b>] worker_thread+0x12e/0x1fc
	  [<ffffffff810dd391>] kthread+0xc4/0xcc
	  [<ffffffff815dc48c>] ret_from_fork+0x7c/0xb0
	irq event stamp: 3388
	hardirqs last  enabled at (3388): [<ffffffff810c6c85>]
	__local_bh_enable_ip+0xaa/0xd9
	hardirqs last disabled at (3387): [<ffffffff810c6c2d>]
	__local_bh_enable_ip+0x52/0xd9
	softirqs last  enabled at (3288): [<ffffffffa01f1d5b>]
	rcu_read_unlock_bh+0x0/0x2f [ipv6]
	softirqs last disabled at (3289): [<ffffffff815ddafc>]
	do_softirq_own_stack+0x1c/0x30

	other info that might help us debug this:
	 Possible unsafe locking scenario:

	       CPU0
	       ----
	  lock(adap_rcu_lock);
	  <Interrupt>
	    lock(adap_rcu_lock);

	 *** DEADLOCK ***

	5 locks held by radvd/3794:
	 #0:  (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffffa020b85a>]
	rawv6_sendmsg+0x74b/0xa4d [ipv6]
	 #1:  (rcu_read_lock){.+.+..}, at: [<ffffffff8151ac6b>]
	rcu_lock_acquire+0x0/0x29
	 #2:  (rcu_read_lock){.+.+..}, at: [<ffffffffa01f4cca>]
	rcu_lock_acquire.constprop.16+0x0/0x30 [ipv6]
	 #3:  (rcu_read_lock){.+.+..}, at: [<ffffffff810e09b4>]
	rcu_lock_acquire+0x0/0x29
	 #4:  (rcu_read_lock){.+.+..}, at: [<ffffffffa0998782>]
	rcu_lock_acquire.constprop.40+0x0/0x30 [cxgb4]

	stack backtrace:
	CPU: 7 PID: 3794 Comm: radvd Tainted: G         C O 3.14.7+ #24
	Hardware name: Supermicro X7DBU/X7DBU, BIOS 6.00 12/03/2007
	 ffffffff81f15990 ffff88012fdc36a8 ffffffff815d0016 0000000000000006
	 ffff8800c80dc2a0 ffff88012fdc3708 ffffffff815cc727 0000000000000001
	 0000000000000001 ffff880100000000 ffffffff81015b02 ffff8800c80dcb58
	Call Trace:
	 <IRQ>  [<ffffffff815d0016>] dump_stack+0x4e/0x71
	 [<ffffffff815cc727>] print_usage_bug+0x1ec/0x1fd
	 [<ffffffff81015b02>] ? save_stack_trace+0x27/0x44
	 [<ffffffff810fbfaa>] ? check_usage_backwards+0xa0/0xa0
	 [<ffffffff810fc640>] mark_lock+0x11b/0x212
	 [<ffffffff810fca0b>] __lock_acquire+0x2d4/0xe48
	 [<ffffffff810fbfaa>] ? check_usage_backwards+0xa0/0xa0
	 [<ffffffff810fbff6>] ? check_usage_forwards+0x4c/0xa6
	 [<ffffffff810c6c8a>] ? __local_bh_enable_ip+0xaf/0xd9
	 [<ffffffff810fd98b>] lock_acquire+0x82/0x9d
	 [<ffffffffa09989ea>] ? clip_add+0x2c/0x116 [cxgb4]
	 [<ffffffffa0998782>] ? rcu_read_unlock+0x23/0x23 [cxgb4]
	 [<ffffffff815d6ff8>] _raw_spin_lock+0x34/0x43
	 [<ffffffffa09989ea>] ? clip_add+0x2c/0x116 [cxgb4]
	 [<ffffffffa09987b0>] ? rcu_lock_acquire.constprop.40+0x2e/0x30 [cxgb4]
	 [<ffffffffa0998782>] ? rcu_read_unlock+0x23/0x23 [cxgb4]
	 [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
	 [<ffffffffa0998beb>] cxgb4_inet6addr_handler+0x117/0x12c [cxgb4]
	 [<ffffffff810fd99d>] ? lock_acquire+0x94/0x9d
	 [<ffffffff810e09b4>] ? raw_notifier_call_chain+0x11/0x11
	 [<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
	 [<ffffffff815da9f9>] __atomic_notifier_call_chain+0x44/0x6e
	 [<ffffffff815daa32>] atomic_notifier_call_chain+0xf/0x11
	 [<ffffffff815b1356>] inet6addr_notifier_call_chain+0x16/0x18
	 [<ffffffffa01f72e5>] ipv6_add_addr+0x404/0x46e [ipv6]
	 [<ffffffff810fde6a>] ? trace_hardirqs_on+0xd/0xf
	 [<ffffffffa01fb634>] addrconf_prefix_rcv+0x385/0x6ea [ipv6]
	 [<ffffffffa0207950>] ndisc_rcv+0x9d3/0xd76 [ipv6]
	 [<ffffffffa020d536>] icmpv6_rcv+0x592/0x67b [ipv6]
	 [<ffffffff810c6c85>] ? __local_bh_enable_ip+0xaa/0xd9
	 [<ffffffff810c6c85>] ? __local_bh_enable_ip+0xaa/0xd9
	 [<ffffffff810fd8dc>] ? lock_release+0x14e/0x17b
	 [<ffffffffa020df97>] ? rcu_read_unlock+0x21/0x23 [ipv6]
	 [<ffffffff8150df52>] ? rcu_read_unlock+0x23/0x23
	 [<ffffffffa01f4ede>] ip6_input_finish+0x1e4/0x2fc [ipv6]
	 [<ffffffffa01f540b>] ip6_input+0x33/0x38 [ipv6]
	 [<ffffffffa01f5557>] ip6_mc_input+0x147/0x160 [ipv6]
	 [<ffffffffa01f4ba3>] ip6_rcv_finish+0x7c/0x81 [ipv6]
	 [<ffffffffa01f5397>] ipv6_rcv+0x3a1/0x3e2 [ipv6]
	 [<ffffffff8151ef96>] __netif_receive_skb_core+0x4ab/0x511
	 [<ffffffff810fdc94>] ? mark_held_locks+0x71/0x99
	 [<ffffffff8151f0c0>] ? process_backlog+0x69/0x15e
	 [<ffffffff8151f045>] __netif_receive_skb+0x49/0x5b
	 [<ffffffff8151f0cf>] process_backlog+0x78/0x15e
	 [<ffffffff8151f571>] ? net_rx_action+0x1a2/0x1cc
	 [<ffffffff8151f47b>] net_rx_action+0xac/0x1cc
	 [<ffffffff810c69b7>] ? __do_softirq+0xad/0x218
	 [<ffffffff810c69ff>] __do_softirq+0xf5/0x218
	 [<ffffffff815ddafc>] do_softirq_own_stack+0x1c/0x30
	 <EOI>  [<ffffffff810c6bb6>] do_softirq+0x38/0x5d
	 [<ffffffffa01f1d5b>] ? ip6_copy_metadata+0x156/0x156 [ipv6]
	 [<ffffffff810c6c78>] __local_bh_enable_ip+0x9d/0xd9
	 [<ffffffffa01f1d88>] rcu_read_unlock_bh+0x2d/0x2f [ipv6]
	 [<ffffffffa01f28b4>] ip6_finish_output2+0x381/0x3d8 [ipv6]
	 [<ffffffffa01f49ef>] ip6_finish_output+0x6e/0x73 [ipv6]
	 [<ffffffffa01f4a70>] ip6_output+0x7c/0xa8 [ipv6]
	 [<ffffffff815b1bfa>] dst_output+0x18/0x1c
	 [<ffffffff815b1c9e>] ip6_local_out+0x1c/0x21
	 [<ffffffffa01f2489>] ip6_push_pending_frames+0x37d/0x427 [ipv6]
	 [<ffffffff81558af8>] ? skb_orphan+0x39/0x39
	 [<ffffffffa020b85a>] ? rawv6_sendmsg+0x74b/0xa4d [ipv6]
	 [<ffffffffa020ba51>] rawv6_sendmsg+0x942/0xa4d [ipv6]
	 [<ffffffff81584cd2>] inet_sendmsg+0x3d/0x66
	 [<ffffffff81508930>] __sock_sendmsg_nosec+0x25/0x27
	 [<ffffffff8150b0d7>] sock_sendmsg+0x5a/0x7b
	 [<ffffffff810fd8dc>] ? lock_release+0x14e/0x17b
	 [<ffffffff8116d756>] ? might_fault+0x9e/0xa5
	 [<ffffffff8116d70d>] ? might_fault+0x55/0xa5
	 [<ffffffff81508cb1>] ? copy_from_user+0x2a/0x2c
	 [<ffffffff8150b70c>] ___sys_sendmsg+0x226/0x2d9
	 [<ffffffff810fcd25>] ? __lock_acquire+0x5ee/0xe48
	 [<ffffffff810fde01>] ? trace_hardirqs_on_caller+0x145/0x1a1
	 [<ffffffff8118efcb>] ? slab_free_hook.isra.71+0x50/0x59
	 [<ffffffff8115c81f>] ? release_pages+0xbc/0x181
	 [<ffffffff810fd99d>] ? lock_acquire+0x94/0x9d
	 [<ffffffff81115e97>] ? read_seqcount_begin.constprop.25+0x73/0x90
	 [<ffffffff8150c408>] __sys_sendmsg+0x3d/0x5b
	 [<ffffffff8150c433>] SyS_sendmsg+0xd/0x19
	 [<ffffffff815dc53d>] system_call_fastpath+0x1a/0x1f

Reported-by: Ben Greear <greearb@candelatech.com>
Cc: Casey Leedom <leedom@chelsio.com>
Cc: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-24 15:51:49 -07:00
Andy Adamson 66b0686049 NFSv4: test SECINFO RPC_AUTH_GSS pseudoflavors for support
Fix nfs4_negotiate_security to create an rpc_clnt used to test each SECINFO
returned pseudoflavor. Check credential creation  (and gss_context creation)
which is important for RPC_AUTH_GSS pseudoflavors which can fail for multiple
reasons including mis-configuration.

Don't call nfs4_negotiate in nfs4_submount as it was just called by
nfs4_proc_lookup_mountpoint (nfs4_proc_lookup_common)

Signed-off-by: Andy Adamson <andros@netapp.com>
[Trond: fix corrupt return value from nfs_find_best_sec()]
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-24 18:46:58 -04:00
Andy Adamson 8445cd3528 NFS Return -EPERM if no supported or matching SECINFO flavor
Do not return RPC_AUTH_UNIX if SEINFO reply tests fail. This
prevents an infinite loop of NFS4ERR_WRONGSEC for non RPC_AUTH_UNIX mounts.

Without this patch, a mount with no sec= option to a server
that does not include RPC_AUTH_UNIX in the
SECINFO return can be presented with an attemtp to use RPC_AUTH_UNIX
which will result in an NFS4ERR_WRONG_SEC which will prompt the SECINFO
call which will again try RPC_AUTH_UNIX....

Signed-off-by: Andy Adamson <andros@netapp.com>
Tested-By: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-24 18:46:58 -04:00
Andy Adamson 57bbe3d7c1 NFS check the return of nfs4_negotiate_security in nfs4_submount
Signed-off-by: Andy Adamson <andros@netapp.com>
Tested-By: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-24 18:46:57 -04:00
Trond Myklebust 6edf96097b NFS: Don't mark the data cache as invalid if it has been flushed
Now that we have functions such as nfs_write_pageuptodate() that use
the cache_validity flags to check if the data cache is valid or not,
it is a little more important to keep the flags in sync with the
state of the data cache.
In particular, we'd like to ensure that if the data cache is empty, we
don't start marking it as needing revalidation.

Reported-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-24 18:46:57 -04:00
Trond Myklebust f2467b6f64 NFS: Clear NFS_INO_REVAL_PAGECACHE when we update the file size
In nfs_update_inode(), if the change attribute is seen to change on
the server, then we set NFS_INO_REVAL_PAGECACHE in order to make
sure that we check the file size.
However, if we also update the file size in the same function, we
don't need to check it again. So make sure that we clear the
NFS_INO_REVAL_PAGECACHE that was set earlier.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-24 18:46:57 -04:00
Scott Mayhew 18dd78c427 nfs: Fix cache_validity check in nfs_write_pageuptodate()
NFS_INO_INVALID_DATA cannot be ignored, even if we have a delegation.

We're still having some problems with data corruption when multiple
clients are appending to a file and those clients are being granted
write delegations on open.

To reproduce:

Client A:
vi /mnt/`hostname -s`
while :; do echo "XXXXXXXXXXXXXXX" >>/mnt/file; sleep $(( $RANDOM % 5 )); done

Client B:
vi /mnt/`hostname -s`
while :; do echo "YYYYYYYYYYYYYYY" >>/mnt/file; sleep $(( $RANDOM % 5 )); done

What's happening is that in nfs_update_inode() we're recognizing that
the file size has changed and we're setting NFS_INO_INVALID_DATA
accordingly, but then we ignore the cache_validity flags in
nfs_write_pageuptodate() because we have a delegation.  As a result,
in nfs_updatepage() we're extending the write to cover the full page
even though we've not read in the data to begin with.

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Cc: <stable@vger.kernel.org> # v3.11+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-24 18:46:56 -04:00
Linus Torvalds 10b5b5361a Merge git://git.kvack.org/~bcrl/aio-fixes
Pull aio fixes from Ben LaHaise:
 "These fix a kernel memory disclosure issue (arbitrary kmap() &
  copy_to_user()) revealed in CVE-2014-0206 by changes that were
  introduced in v3.10"

* git://git.kvack.org/~bcrl/aio-fixes:
  aio: fix kernel memory disclosure in io_getevents() introduced in v3.10
  aio: fix aio request leak when events are reaped by userspace
2014-06-24 14:00:13 -07:00