Commit Graph

648282 Commits

Author SHA1 Message Date
Tobias Klauser
dc647ec88e net: socket: Make unnecessarily global sockfs_setattr() static
Make sockfs_setattr() static as it is not used outside of net/socket.c

This fixes the following GCC warning:
net/socket.c:534:5: warning: no previous prototype for ‘sockfs_setattr’ [-Wmissing-prototypes]

Fixes: 86741ec254 ("net: core: Add a UID field to struct sock.")
Cc: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-10 11:29:50 -05:00
David S. Miller
2bc979f273 wireless-drivers fixes for 4.10
Only two fixes at this time. The rtlwifi fix is an important one as it
 fixes a reported oops and Linus was already asking about it. The
 orinoco fix is not tested on a real device, because it's old legacy
 hardware and hardly no-one use it, but it should fix a (theoretical)
 issue with VMAP_STACK.
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Merge tag 'wireless-drivers-for-davem-2017-01-10' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.10

Only two fixes at this time. The rtlwifi fix is an important one as it
fixes a reported oops and Linus was already asking about it. The
orinoco fix is not tested on a real device, because it's old legacy
hardware and hardly no-one use it, but it should fix a (theoretical)
issue with VMAP_STACK.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-10 11:27:46 -05:00
Eric Dumazet
6bb629db5e tcp: do not export tcp_peer_is_proven()
After commit 1fb6f159fd ("tcp: add tcp_conn_request"),
tcp_peer_is_proven() no longer needs to be exported.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 16:34:39 -05:00
Jean Delvare
2ebae8bd60 net: phy: Add Meson GXL PHY hardware dependency
As I understand it the Meson GXL PHY driver is only useful on one
architecture so only make it visible on that architecture.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 7334b3e47a ("net: phy: Add Meson GXL Internal PHY driver")
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 16:34:39 -05:00
Vlad Tsyrklevich
ce7e40c432 net/appletalk: Fix kernel memory disclosure
ipddp_route structs contain alignment padding so kernel heap memory
is leaked when they are copied to user space in
ipddp_ioctl(SIOCFINDIPDDPRT). Change kmalloc() to kzalloc() to clear
that memory.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 16:34:39 -05:00
Pavel Tikhomirov
b007f09072 ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int
> cat /proc/sys/net/ipv4/tcp_notsent_lowat
-1
> echo 4294967295 > /proc/sys/net/ipv4/tcp_notsent_lowat
-bash: echo: write error: Invalid argument
> echo -2147483648 > /proc/sys/net/ipv4/tcp_notsent_lowat
> cat /proc/sys/net/ipv4/tcp_notsent_lowat
-2147483648

but in documentation we have "tcp_notsent_lowat - UNSIGNED INTEGER"

v2: simplify to just proc_douintvec
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 16:34:38 -05:00
Alexander Alemayhu
67c408cfa8 ipv6: fix typos
o s/approriate/appropriate
o s/discouvery/discovery

Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 16:34:15 -05:00
Zefir Kurtisi
811a919135 phy state machine: failsafe leave invalid RUNNING state
While in RUNNING state, phy_state_machine() checks for link changes by
comparing phydev->link before and after calling phy_read_status().
This works as long as it is guaranteed that phydev->link is never
changed outside the phy_state_machine().

If in some setups this happens, it causes the state machine to miss
a link loss and remain RUNNING despite phydev->link being 0.

This has been observed running a dsa setup with a process continuously
polling the link states over ethtool each second (SNMPD RFC-1213
agent). Disconnecting the link on a phy followed by a ETHTOOL_GSET
causes dsa_slave_get_settings() / dsa_slave_get_link_ksettings() to
call phy_read_status() and with that modify the link status - and
with that bricking the phy state machine.

This patch adds a fail-safe check while in RUNNING, which causes to
move to CHANGELINK when the link is gone and we are still RUNNING.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-09 15:37:44 -05:00
Linus Torvalds
c92f5bdc4b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix dumping of nft_quota entries, from Pablo Neira Ayuso.

 2) Fix out of bounds access in nf_tables discovered by KASAN, from
    Florian Westphal.

 3) Fix IRQ enabling in dp83867 driver, from Grygorii Strashko.

 4) Fix unicast filtering in be2net driver, from Ivan Vecera.

 5) tg3_get_stats64() can race with driver close and ethtool
    reconfigurations, fix from Michael Chan.

 6) Fix error handling when pass limit is reached in bpf code gen on
    x86. From Daniel Borkmann.

 7) Don't clobber switch ops and use proper MDIO nested reads and writes
    in bcm_sf2 driver, from Florian Fainelli.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
  net: dsa: bcm_sf2: Utilize nested MDIO read/write
  net: dsa: bcm_sf2: Do not clobber b53_switch_ops
  net: stmmac: fix maxmtu assignment to be within valid range
  bpf: change back to orig prog on too many passes
  tg3: Fix race condition in tg3_get_stats64().
  be2net: fix unicast list filling
  be2net: fix accesses to unicast list
  netlabel: add CALIPSO to the list of built-in protocols
  vti6: fix device register to report IFLA_INFO_KIND
  net: phy: dp83867: fix irq generation
  amd-xgbe: Fix IRQ processing when running in single IRQ mode
  sh_eth: R8A7740 supports packet shecksumming
  sh_eth: fix EESIPR values for SH77{34|63}
  r8169: fix the typo in the comment
  nl80211: fix sched scan netlink socket owner destruction
  bridge: netfilter: Fix dropping packets that moving through bridge interface
  netfilter: ipt_CLUSTERIP: check duplicate config when initializing
  netfilter: nft_payload: mangle ckecksum if NFT_PAYLOAD_L4CSUM_PSEUDOHDR is set
  netfilter: nf_tables: fix oob access
  netfilter: nft_queue: use raw_smp_processor_id()
  ...
2017-01-09 11:58:28 -08:00
David S. Miller
03430fa10b Merge branch 'bcm_sf2-fixes'
Florian Fainelli says:

====================
net: dsa: bcm_sf2: Couple fixes

Here are a couple of fixes for bcm_sf2, please queue these up for -stable
as well, thank you very much!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-08 22:01:22 -05:00
Florian Fainelli
2cfe8f8290 net: dsa: bcm_sf2: Utilize nested MDIO read/write
We are implementing a MDIO bus which is behind another one, so use the
nested version of the accessors to get lockdep annotations correct.

Fixes: 461cd1b03e ("net: dsa: bcm_sf2: Register our slave MDIO bus")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-08 22:01:22 -05:00
Florian Fainelli
a4c61b92b3 net: dsa: bcm_sf2: Do not clobber b53_switch_ops
We make the bcm_sf2 driver override ds->ops which points to
b53_switch_ops since b53_switch_alloc() did the assignent. This is all
well and good until a second b53 switch comes in, and ends up using the
bcm_sf2 operations. Make a proper local copy, substitute the ds->ops
pointer and then override the operations.

Fixes: f458995b9a ("net: dsa: bcm_sf2: Utilize core B53 driver when possible")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-08 22:01:22 -05:00
Kweh, Hock Leong
a2cd64f301 net: stmmac: fix maxmtu assignment to be within valid range
There is no checking valid value of maxmtu when getting it from
device tree. This resolution added the checking condition to
ensure the assignment is made within a valid range.

Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-08 18:20:41 -05:00
Linus Torvalds
a121103c92 Linux 4.10-rc3 2017-01-08 14:18:17 -08:00
Daniel Borkmann
9d5ecb09d5 bpf: change back to orig prog on too many passes
If after too many passes still no image could be emitted, then
swap back to the original program as we do in all other cases
and don't use the one with blinding.

Fixes: 959a757916 ("bpf, x86: add support for constant blinding")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-08 17:00:18 -05:00
Linus Torvalds
83280e90ef USB fixes for 4.10-rc3
Here are a bunch of USB fixes for 4.10-rc3.  Yeah, it's a lot, an
 artifact of the holiday break I think.  Lots of gadget and the usual
 XHCI fixups for reported issues (one day that driver will calm down...)
 Also included are a bunch of usb-serial driver fixes, and for good
 measure, a number of much-reported MUSB driver issues have finally been
 resolved.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an
  artifact of the holiday break I think.

  Lots of gadget and the usual XHCI fixups for reported issues (one day
  that driver will calm down...) Also included are a bunch of usb-serial
  driver fixes, and for good measure, a number of much-reported MUSB
  driver issues have finally been resolved.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (72 commits)
  USB: fix problems with duplicate endpoint addresses
  usb: ohci-at91: use descriptor-based gpio APIs correctly
  usb: storage: unusual_uas: Add JMicron JMS56x to unusual device
  usb: hub: Move hub_port_disable() to fix warning if PM is disabled
  usb: musb: blackfin: add bfin_fifo_offset in bfin_ops
  usb: musb: fix compilation warning on unused function
  usb: musb: Fix trying to free already-free IRQ 4
  usb: musb: dsps: implement clear_ep_rxintr() callback
  usb: musb: core: add clear_ep_rxintr() to musb_platform_ops
  USB: serial: ti_usb_3410_5052: fix NULL-deref at open
  USB: serial: spcp8x5: fix NULL-deref at open
  USB: serial: quatech2: fix sleep-while-atomic in close
  USB: serial: pl2303: fix NULL-deref at open
  USB: serial: oti6858: fix NULL-deref at open
  USB: serial: omninet: fix NULL-derefs at open and disconnect
  USB: serial: mos7840: fix misleading interrupt-URB comment
  USB: serial: mos7840: remove unused write URB
  USB: serial: mos7840: fix NULL-deref at open
  USB: serial: mos7720: remove obsolete port initialisation
  USB: serial: mos7720: fix parallel probe
  ...
2017-01-08 11:42:04 -08:00
Linus Torvalds
cc250e267b Char/Misc fixes for 4.10-rc3
Here are a few small char/misc driver fixes for 4.10-rc3.
 
 2 MEI driver fixes, and 3 NVMEM patches for reported issues, and a new
 Hyper-V driver MAINTAINER update.  Nothing major at all, all have been
 in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg KH:
 "Here are a few small char/misc driver fixes for 4.10-rc3.

  Two MEI driver fixes, and three NVMEM patches for reported issues, and
  a new Hyper-V driver MAINTAINER update. Nothing major at all, all have
  been in linux-next with no reported issues"

* tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  hyper-v: Add myself as additional MAINTAINER
  nvmem: fix nvmem_cell_read() return type doc
  nvmem: imx-ocotp: Fix wrong register size
  nvmem: qfprom: Allow single byte accesses for read/write
  mei: move write cb to completion on credentials failures
  mei: bus: fix mei_cldev_enable KDoc
2017-01-08 11:37:44 -08:00
Linus Torvalds
6ea17ed15d Staging/IIO fixes for 4.10-rc3
Here are some staging and IIO driver fixes for 4.10-rc3.
 
 Most of these are minor IIO fixes of reported issues, along with one
 network driver fix to resolve an issue.  And a MAINTAINERS update with a
 new mailing list.  All of these, except the MAINTAINERS file update,
 have been in linux-next with no reported issues (the MAINTAINERS patch
 happened on Friday...)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO fixes from Greg KH:
 "Here are some staging and IIO driver fixes for 4.10-rc3.

  Most of these are minor IIO fixes of reported issues, along with one
  network driver fix to resolve an issue. And a MAINTAINERS update with
  a new mailing list. All of these, except the MAINTAINERS file update,
  have been in linux-next with no reported issues (the MAINTAINERS patch
  happened on Friday...)"

* tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  MAINTAINERS: add greybus subsystem mailing list
  staging: octeon: Call SET_NETDEV_DEV()
  iio: accel: st_accel: fix LIS3LV02 reading and scaling
  iio: common: st_sensors: fix channel data parsing
  iio: max44000: correct value in illuminance_integration_time_available
  iio: adc: TI_AM335X_ADC should depend on HAS_DMA
  iio: bmi160: Fix time needed to sleep after command execution
  iio: 104-quad-8: Fix active level mismatch for the preset enable option
  iio: 104-quad-8: Fix off-by-one errors when addressing IOR
  iio: 104-quad-8: Fix index control configuration
2017-01-08 11:22:00 -08:00
Michael Chan
f5992b72eb tg3: Fix race condition in tg3_get_stats64().
The driver's ndo_get_stats64() method is not always called under RTNL.
So it can race with driver close or ethtool reconfigurations.  Fix the
race condition by taking tp->lock spinlock in tg3_free_consistent()
when freeing the tp->hw_stats memory block.  tg3_get_stats64() is
already taking tp->lock.

Reported-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-07 21:35:04 -05:00
Ivan Vecera
6052cd1af8 be2net: fix unicast list filling
The adapter->pmac_id[0] item is used for primary MAC address but
this is not true for adapter->uc_list[0] as is assumed in
be_set_uc_list(). There are N UC addresses copied first from net_device
to adapter->uc_list[1..N] and then N UC addresses from
adapter->uc_list[0..N-1] are sent to HW. So the last UC address is never
stored into HW and address 00:00:00:00;00:00 (from uc_list[0]) is used
instead.

Cc: Sathya Perla <sathya.perla@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Cc: Somnath Kotur <somnath.kotur@broadcom.com>
Fixes: b717241 be2net: replace polling with sleeping in the FW completion path
Signed-off-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-07 21:25:10 -05:00
Johannes Weiner
ea07b862ac mm: workingset: fix use-after-free in shadow node shrinker
Several people report seeing warnings about inconsistent radix tree
nodes followed by crashes in the workingset code, which all looked like
use-after-free access from the shadow node shrinker.

Dave Jones managed to reproduce the issue with a debug patch applied,
which confirmed that the radix tree shrinking indeed frees shadow nodes
while they are still linked to the shadow LRU:

  WARNING: CPU: 2 PID: 53 at lib/radix-tree.c:643 delete_node+0x1e4/0x200
  CPU: 2 PID: 53 Comm: kswapd0 Not tainted 4.10.0-rc2-think+ #3
  Call Trace:
     delete_node+0x1e4/0x200
     __radix_tree_delete_node+0xd/0x10
     shadow_lru_isolate+0xe6/0x220
     __list_lru_walk_one.isra.4+0x9b/0x190
     list_lru_walk_one+0x23/0x30
     scan_shadow_nodes+0x2e/0x40
     shrink_slab.part.44+0x23d/0x5d0
     shrink_node+0x22c/0x330
     kswapd+0x392/0x8f0

This is the WARN_ON_ONCE(!list_empty(&node->private_list)) placed in the
inlined radix_tree_shrink().

The problem is with 14b468791f ("mm: workingset: move shadow entry
tracking to radix tree exceptional tracking"), which passes an update
callback into the radix tree to link and unlink shadow leaf nodes when
tree entries change, but forgot to pass the callback when reclaiming a
shadow node.

While the reclaimed shadow node itself is unlinked by the shrinker, its
deletion from the tree can cause the left-most leaf node in the tree to
be shrunk.  If that happens to be a shadow node as well, we don't unlink
it from the LRU as we should.

Consider this tree, where the s are shadow entries:

       root->rnode
            |
       [0       n]
        |       |
     [s    ] [sssss]

Now the shadow node shrinker reclaims the rightmost leaf node through
the shadow node LRU:

       root->rnode
            |
       [0        ]
        |
    [s     ]

Because the parent of the deleted node is the first level below the
root and has only one child in the left-most slot, the intermediate
level is shrunk and the node containing the single shadow is put in
its place:

       root->rnode
            |
       [s        ]

The shrinker again sees a single left-most slot in a first level node
and thus decides to store the shadow in root->rnode directly and free
the node - which is a leaf node on the shadow node LRU.

  root->rnode
       |
       s

Without the update callback, the freed node remains on the shadow LRU,
where it causes later shrinker runs to crash.

Pass the node updater callback into __radix_tree_delete_node() in case
the deletion causes the left-most branch in the tree to collapse too.

Also add warnings when linked nodes are freed right away, rather than
wait for the use-after-free when the list is scanned much later.

Fixes: 14b468791f ("mm: workingset: move shadow entry tracking to radix tree exceptional tracking")
Reported-by: Dave Chinner <david@fromorbit.com>
Reported-by: Hugh Dickins <hughd@google.com>
Reported-by: Andrea Arcangeli <aarcange@redhat.com>
Reported-and-tested-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chris Leech <cleech@redhat.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-07 18:22:40 -08:00
Hugh Dickins
b0b9b3df27 mm: stop leaking PageTables
4.10-rc loadtest (even on x86, and even without THPCache) fails with
"fork: Cannot allocate memory" or some such; and /proc/meminfo shows
PageTables growing.

Commit 953c66c2b2 ("mm: THP page cache support for ppc64") that got
merged in rc1 removed the freeing of an unused preallocated pagetable
after do_fault_around() has called map_pages().

This is usually a good optimization, so that the followup doesn't have
to reallocate one; but it's not sufficient to shift the freeing into
alloc_set_pte(), since there are failure cases (most commonly
VM_FAULT_RETRY) which never reach finish_fault().

Check and free it at the outer level in do_fault(), then we don't need
to worry in alloc_set_pte(), and can restore that to how it was (I
cannot find any reason to pte_free() under lock as it was doing).

And fix a separate pagetable leak, or crash, introduced by the same
change, that could only show up on some ppc64: why does do_set_pmd()'s
failure case attempt to withdraw a pagetable when it never deposited
one, at the same time overwriting (so leaking) the vmf->prealloc_pte?
Residue of an earlier implementation, perhaps? Delete it.

Fixes: 953c66c2b2 ("mm: THP page cache support for ppc64")
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-07 17:49:33 -08:00
Linus Torvalds
87bc610730 Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild fix from Michal Marek:
 "The asm-prototypes.h file added in the last merge window results in
  invalid code with CONFIG_KMEMCHECK=y. The net result is that genksyms
  segfaults.

  This pull request fixes the header, the genksyms fix is in my kbuild
  branch for 4.11"

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  asm-prototypes: Clear any CPP defines before declaring the functions
2017-01-07 09:47:43 -08:00
Greg Kroah-Hartman
01d0f71586 MAINTAINERS: add greybus subsystem mailing list
The Greybus driver subsystem has a mailing list, so list it in the
MAINTAINERS file so that people know to send patches there as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-07 17:05:42 +01:00
Ivan Vecera
1d0f110a2c be2net: fix accesses to unicast list
Commit 988d44b "be2net: Avoid redundant addition of mac address in HW"
introduced be_dev_mac_add & be_uc_mac_add helpers that incorrectly
access adapter->uc_list as an array of bytes instead of an array of
be_eth_addr. Consequently NIC is not filled with valid data so unicast
filtering is broken.

Cc: Sathya Perla <sathya.perla@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Cc: Somnath Kotur <somnath.kotur@broadcom.com>
Fixes: 988d44b be2net: Avoid redundant addition of mac address in HW
Signed-off-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 22:22:08 -05:00
Paul Moore
bcd5e1a49f netlabel: add CALIPSO to the list of built-in protocols
When we added CALIPSO support in Linux v4.8 we forgot to add it to the
list of supported protocols with display at boot.

Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 22:20:45 -05:00
Linus Torvalds
308c470bc4 sound fixes for 4.10-rc3
Nothing particular stands out, only a few small fixes for USB-audio,
 HD-audio and Firewire.  The USB-audio fix is the respin of the
 previous race fix after a revert due to the regression.
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Merge tag 'sound-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Nothing particular stands out, only a few small fixes for USB-audio,
  HD-audio and Firewire. The USB-audio fix is the respin of the previous
  race fix after a revert due to the regression"

* tag 'sound-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  Revert "ALSA: firewire-lib: change structure member with proper type"
  ALSA: usb-audio: test EP_FLAG_RUNNING at urb completion
  ALSA: usb-audio: Fix irq/process data synchronization
  ALSA: hda - Apply asus-mode8 fixup to ASUS X71SL
  ALSA: hda - Fix up GPIO for ASUS ROG Ranger
  ALSA: firewire-lib: change structure member with proper type
  ALSA: firewire-tascam: Fix to handle error from initialization of stream data
  ALSA: fireworks: fix asymmetric API call at unit removal
2017-01-06 15:38:39 -08:00
Linus Torvalds
d72f0ded89 One fix for a broken driver on Renesas RZ/A1 SoCs with bootloaders that don't
turn all the clks on and another fix for stm32f4 SoCs where we have multiple
 drivers attaching to the same DT node.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "One fix for a broken driver on Renesas RZ/A1 SoCs with bootloaders
  that don't turn all the clks on and another fix for stm32f4 SoCs where
  we have multiple drivers attaching to the same DT node"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: stm32f4: Use CLK_OF_DECLARE_DRIVER initialization method
  clk: renesas: mstp: Support 8-bit registers for r7s72100
2017-01-06 15:35:27 -08:00
Linus Torvalds
baaf031521 Fix temp1_max_alarm attribute in lm90 driver
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Merge tag 'hwmon-for-linus-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "Fix temp1_max_alarm attribute in lm90 driver"

* tag 'hwmon-for-linus-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (lm90) fix temp1_max_alarm attribute
2017-01-06 15:32:40 -08:00
Linus Torvalds
08289086b0 KVM fixes for v4.10-rc3
MIPS: (both for stable)
  - fix host kernel crashes when receiving a signal with 64-bit userspace
  - flush instruction cache on all vcpus after generating entry code
 
 x86:
  - fix NULL dereference in MMU caused by SMM transitions (for stable)
  - correct guest instruction pointer after emulating some VMX errors
  - minor cleanup
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "MIPS:
   - fix host kernel crashes when receiving a signal with 64-bit
     userspace

   - flush instruction cache on all vcpus after generating entry code

     (both for stable)

  x86:
   - fix NULL dereference in MMU caused by SMM transitions (for stable)

   - correct guest instruction pointer after emulating some VMX errors

   - minor cleanup"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: remove duplicated declaration
  KVM: MIPS: Flush KVM entry code from icache globally
  KVM: MIPS: Don't clobber CP0_Status.UX
  KVM: x86: reset MMU on KVM_SET_VCPU_EVENTS
  KVM: nVMX: fix instruction skipping during emulated vm-entry
2017-01-06 15:27:17 -08:00
Linus Torvalds
b1ee51702e - Re-introduce the arm64 get_current() optimisation
- KERN_CONT fallout fix in show_pte()
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - re-introduce the arm64 get_current() optimisation

 - KERN_CONT fallout fix in show_pte()

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: restore get_current() optimisation
  arm64: mm: fix show_pte KERN_CONT fallout
2017-01-06 15:18:58 -08:00
David S. Miller
219a808fa1 Another single fix, to correctly handle destruction of a
single netlink socket having ownership of multiple objects
 (scheduled scan requests and interfaces.)
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Merge tag 'mac80211-for-davem-2017-01-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Another single fix, to correctly handle destruction of a
single netlink socket having ownership of multiple objects
(scheduled scan requests and interfaces.)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 16:26:19 -05:00
David Forster
93e246f783 vti6: fix device register to report IFLA_INFO_KIND
vti6 interface is registered before the rtnl_link_ops block
is attached. As a result the resulting RTM_NEWLINK is missing
IFLA_INFO_KIND. Re-order attachment of rtnl_link_ops block to fix.

Signed-off-by: Dave Forster <dforster@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 16:09:09 -05:00
Grygorii Strashko
5ca7d1ca77 net: phy: dp83867: fix irq generation
For proper IRQ generation by DP83867 phy the INT/PWDN pin has to be
programmed as an interrupt output instead of a Powerdown input in
Configuration Register 3 (CFG3), Address 0x001E, bit 7 INT_OE = 1. The
current driver doesn't do this and as result IRQs will not be generated by
DP83867 phy even if they are properly configured in DT.

Hence, fix IRQ generation by properly configuring CFG3.INT_OE bit and
ensure that Link Status Change (LINK_STATUS_CHNG_INT) and Auto-Negotiation
Complete (AUTONEG_COMP_INT) interrupt are enabled. After this the DP83867
driver will work properly in interrupt enabled mode.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 15:52:43 -05:00
Lendacky, Thomas
896b4db685 amd-xgbe: Fix IRQ processing when running in single IRQ mode
When running in single IRQ mode, the additional IRQ routines were being
skipped because only the XGMAC interrupt status was being checked.
Update the code so that the additional IRQ routines are checked whenever
an interrupt is received.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 15:34:05 -05:00
Sergei Shtylyov
0f1f9cbc04 sh_eth: R8A7740 supports packet shecksumming
The R8A7740 GEther controller supports the packet checksum offloading
but the 'hw_crc' (bad name, I'll fix it) flag isn't set in the R8A7740
data,  thus CSMR isn't cleared...

Fixes: 73a0d90730 ("net: sh_eth: add support R8A7740")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 15:23:01 -05:00
Sergei Shtylyov
978d3639fd sh_eth: fix EESIPR values for SH77{34|63}
As the SH77{34|63} manuals are freely available,  I've checked the EESIPR
values written against the manuals, and they appeared to set the reserved
bits 11-15 (which should be 0 on write). Fix those EESIPR values.

Fixes: 380af9e390 ("net: sh_eth: CPU dependency code collect to "struct sh_eth_cpu_data"")
Fixes: f5d12767c8 ("sh_eth: get SH77{34|63} support out of #ifdef")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-06 15:23:01 -05:00
Linus Torvalds
5824f92463 VFIO fixes for v4.10-rc3
- Add mtty sample driver properly into build system (Alex Williamson)
  - Restore type1 mapping performance after mdev (Alex Williamson)
  - Fix mdev device race (Alex Williamson)
  - Cleanups to the mdev ABI used by vendor drivers (Alex Williamson)
  - Build fix for old compilers (Arnd Bergmann)
  - Fix sample driver error path (Dan Carpenter)
  - Handle pci_iomap() error (Arvind Yadav)
  - Fix mdev ioctl return type (Paul Gortmaker)
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Merge tag 'vfio-v4.10-rc3' of git://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:
 - Add mtty sample driver properly into build system (Alex Williamson)
 - Restore type1 mapping performance after mdev (Alex Williamson)
 - Fix mdev device race (Alex Williamson)
 - Cleanups to the mdev ABI used by vendor drivers (Alex Williamson)
 - Build fix for old compilers (Arnd Bergmann)
 - Fix sample driver error path (Dan Carpenter)
 - Handle pci_iomap() error (Arvind Yadav)
 - Fix mdev ioctl return type (Paul Gortmaker)

* tag 'vfio-v4.10-rc3' of git://github.com/awilliam/linux-vfio:
  vfio-mdev: fix non-standard ioctl return val causing i386 build fail
  vfio-pci: Handle error from pci_iomap
  vfio-mdev: fix some error codes in the sample code
  vfio-pci: use 32-bit comparisons for register address for gcc-4.5
  vfio-mdev: Make mdev_device private and abstract interfaces
  vfio-mdev: Make mdev_parent private
  vfio-mdev: de-polute the namespace, rename parent_device & parent_ops
  vfio-mdev: Fix remove race
  vfio/type1: Restore mapping performance with mdev support
  vfio-mdev: Fix mtty sample driver building
2017-01-06 11:19:03 -08:00
Linus Torvalds
2fd8774c79 Merge branch 'stable/for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
Pull swiotlb fixes from Konrad Rzeszutek Wilk:
 "This has one fix to make i915 work when using Xen SWIOTLB, and a
  feature from Geert to aid in debugging of devices that can't do DMA
  outside the 32-bit address space.

  The feature from Geert is on top of v4.10 merge window commit
  (specifically you pulling my previous branch), as his changes were
  dependent on the Documentation/ movement patches.

  I figured it would just easier than me trying than to cherry-pick the
  Documentation patches to satisfy git.

  The patches have been soaking since 12/20, albeit I updated the last
  patch due to linux-next catching an compiler error and adding an
  Tested-and-Reported-by tag"

* 'stable/for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
  swiotlb: Export swiotlb_max_segment to users
  swiotlb: Add swiotlb=noforce debug option
  swiotlb: Convert swiotlb_force from int to enum
  x86, swiotlb: Simplify pci_swiotlb_detect_override()
2017-01-06 10:53:21 -08:00
Linus Torvalds
65cdc405b3 IOMMU Fixes for Linux v4.10-rc2
Three fixes queued up:
 
 	* Fix an issue with command buffer overflow handling in the AMD
 	  IOMMU driver
 
 	* Add an additional context entry flush to the Intel VT-d driver
 	  to make sure any old context entry from kdump copying is
 	  flushed out of the cache
 
 	* Correct the encoding of the PASID table size in the Intel VT-d
 	  driver
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Merge tag 'iommu-fixes-v4.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Three fixes queued up:

   - fix an issue with command buffer overflow handling in the AMD IOMMU
     driver

   - add an additional context entry flush to the Intel VT-d driver to
     make sure any old context entry from kdump copying is flushed out
     of the cache

   - correct the encoding of the PASID table size in the Intel VT-d
     driver"

* tag 'iommu-fixes-v4.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Fix the left value check of cmd buffer
  iommu/vt-d: Fix pasid table size encoding
  iommu/vt-d: Flush old iommu caches for kdump when the device gets context mapped
2017-01-06 10:49:36 -08:00
Linus Torvalds
7397e1e838 ACPI fixes for v4.10-rc3
- Fix a device enumeration issue leading to incorrect associations
    between ACPI device objects and platform device objects representing
    physical devices if the given device object has both _ADR and _HID
    (Rafael Wysocki).
 
  - Avoid passing NULL to acpi_put_table() during IOMMU initialization
    which triggers a (rightful) warning from ACPICA (Rafael Wysocki).
 
  - Drop an excessive call to acpi_dma_deconfigure() from the core
    code that binds ACPI device objects to device objects representing
    physical devices (Lorenzo Pieralisi).
 
  - Update an error message in the ACPI WDAT watchdog driver to make it
    provide more useful information (Mika Westerberg).
 
  - Add a mechanism to work around issues with unhandled GPE notifications
    that occur during system initialization and cannot be prevented by
    means of sysfs (Lv Zheng).
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Merge tag 'acpi-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix a device enumeration problem related to _ADR matching and an
  IOMMU initialization issue related to the DMAR table missing, remove
  an excessive function call from the core ACPI code, update an error
  message in the ACPI WDAT watchdog driver and add a way to work around
  problems with unhandled GPE notifications.

  Specifics:

   - Fix a device enumeration issue leading to incorrect associations
     between ACPI device objects and platform device objects
     representing physical devices if the given device object has both
     _ADR and _HID (Rafael Wysocki).

   - Avoid passing NULL to acpi_put_table() during IOMMU initialization
     which triggers a (rightful) warning from ACPICA (Rafael Wysocki).

   - Drop an excessive call to acpi_dma_deconfigure() from the core code
     that binds ACPI device objects to device objects representing
     physical devices (Lorenzo Pieralisi).

   - Update an error message in the ACPI WDAT watchdog driver to make it
     provide more useful information (Mika Westerberg).

   - Add a mechanism to work around issues with unhandled GPE
     notifications that occur during system initialization and cannot be
     prevented by means of sysfs (Lv Zheng)"

* tag 'acpi-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / DMAR: Avoid passing NULL to acpi_put_table()
  ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
  ACPI / watchdog: Print out error number when device creation fails
  ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding
  ACPI: Drop misplaced acpi_dma_deconfigure() call from acpi_bind_one()
2017-01-06 10:40:17 -08:00
Linus Torvalds
b937a8697b Power management fixes for v4.10-rc3
- Fix a few intel_pstate driver issues: add missing locking it two places,
    avoid exposing a useless debugfs interface and keep the attribute
    values in sysfs in sync (Rafael Wysocki).
 
  - Drop confusing kernel-doc references related to power management and
    ACPI from the driver API manual (Rafael Wysocki).
 
  - Make a false-positive compiler warning in the generic power domains
    framework go away (Augusto Mecking Caringi).
 
  - Fix two initialization issues in the devfreq subsystem and update
    the MAINTAINERS entry for it (Chanwoo Choi).
 
  - Add a new "compatible" string for APM X-Gene 2 to the generic DT
    cpufreq driver (Hoan Tran).
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Merge tag 'pm-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix a few issues in the intel_pstate driver, a documetation
  issue, a false-positive compiler warning in the generic power domains
  framework and two problems in the devfreq subsystem. They also update
  the MAINTAINERS entry for devfreq and add a new "compatible" string to
  the generic cpufreq-dt driver.

  Specifics:

   - Fix a few intel_pstate driver issues: add missing locking it two
     places, avoid exposing a useless debugfs interface and keep the
     attribute values in sysfs in sync (Rafael Wysocki).

   - Drop confusing kernel-doc references related to power management
     and ACPI from the driver API manual (Rafael Wysocki).

   - Make a false-positive compiler warning in the generic power domains
     framework go away (Augusto Mecking Caringi).

   - Fix two initialization issues in the devfreq subsystem and update
     the MAINTAINERS entry for it (Chanwoo Choi).

   - Add a new "compatible" string for APM X-Gene 2 to the generic DT
     cpufreq driver (Hoan Tran)"

* tag 'pm-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: dt: Add support for APM X-Gene 2
  PM / devfreq: exynos-bus: Fix the wrong return value
  PM / devfreq: Fix the bug of devfreq_add_device when governor is NULL
  MAINTAINERS: Add myself as reviewer for DEVFREQ subsystem support
  PM / docs: Drop confusing kernel-doc references from infrastructure.rst
  PM / domains: Fix 'may be used uninitialized' build warning
  cpufreq: intel_pstate: Always keep all limits settings in sync
  cpufreq: intel_pstate: Use locking in intel_cpufreq_verify_policy()
  cpufreq: intel_pstate: Use locking in intel_pstate_resume()
  cpufreq: intel_pstate: Do not expose PID parameters in passive mode
2017-01-06 10:37:50 -08:00
Konrad Rzeszutek Wilk
7453c549f5 swiotlb: Export swiotlb_max_segment to users
So they can figure out what is the optimal number of pages
that can be contingously stitched together without fear of
bounce buffer.

We also expose an mechanism for sub-users of SWIOTLB API, such
as Xen-SWIOTLB to set the max segment value. And lastly
if swiotlb=force is set (which mandates we bounce buffer everything)
we set max_segment so at least we can bounce buffer one 4K page
instead of a giant 512KB one for which we may not have space.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reported-and-Tested-by: Juergen Gross <jgross@suse.com>
2017-01-06 13:00:01 -05:00
Rafael J. Wysocki
f1dabf0b09 Merge branches 'acpi-scan', 'acpi-sysfs', 'acpi-wdat' and 'acpi-tables'
* acpi-scan:
  ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
  ACPI: Drop misplaced acpi_dma_deconfigure() call from acpi_bind_one()

* acpi-sysfs:
  ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding

* acpi-wdat:
  ACPI / watchdog: Print out error number when device creation fails

* acpi-tables:
  ACPI / DMAR: Avoid passing NULL to acpi_put_table()
2017-01-06 14:36:30 +01:00
Rafael J. Wysocki
7e2b9d8555 Merge branches 'pm-domains', 'pm-docs' and 'pm-devfreq'
* pm-domains:
  PM / domains: Fix 'may be used uninitialized' build warning

* pm-docs:
  PM / docs: Drop confusing kernel-doc references from infrastructure.rst

* pm-devfreq:
  PM / devfreq: exynos-bus: Fix the wrong return value
  PM / devfreq: Fix the bug of devfreq_add_device when governor is NULL
  MAINTAINERS: Add myself as reviewer for DEVFREQ subsystem support
2017-01-06 14:35:32 +01:00
Rafael J. Wysocki
3baad65546 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: dt: Add support for APM X-Gene 2
  cpufreq: intel_pstate: Always keep all limits settings in sync
  cpufreq: intel_pstate: Use locking in intel_cpufreq_verify_policy()
  cpufreq: intel_pstate: Use locking in intel_pstate_resume()
  cpufreq: intel_pstate: Do not expose PID parameters in passive mode
2017-01-06 14:34:52 +01:00
Linus Torvalds
88ba6cae15 platform-drivers-x86 for 4.10-3
fujitsu-laptop:
  - use brightness_set_blocking for LED-setting callbacks
 
 platform/x86: fix surface3_button build errors:
  - fix surface3_button build errors
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Merge tag 'platform-drivers-x86-v4.10-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver fixes from Darren Hart:
 "Just two small fixes for platform drivers x86:

   - use brightness_set_blocking for LED-setting callbacks on Fujitsu
     laptops

   - fix surface3_button build errors"

* tag 'platform-drivers-x86-v4.10-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  platform/x86: fujitsu-laptop: use brightness_set_blocking for LED-setting callbacks
  platform/x86: fix surface3_button build errors
2017-01-05 23:17:41 -08:00
Linus Torvalds
6989606a72 Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit
Pull audit fixes from Paul Moore:
 "Two small fixes relating to audit's use of fsnotify.

  The first patch plugs a leak and the second fixes some lock
  shenanigans. The patches are small and I banged on this for an
  afternoon with our testsuite and didn't see anything odd"

* 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit:
  audit: Fix sleep in atomic
  fsnotify: Remove fsnotify_duplicate_mark()
2017-01-05 23:06:06 -08:00
Linus Torvalds
ed40875dd4 Merge tag 'drm-intel-fixes-2017-01-05' of git://anongit.freedesktop.org/git/drm-intel
Pull i915 drm fixes from Jani Nikula:
 "Here's a bunch of drm/i915 fixes for v4.10-rc3. It includes GVT-g
  fixes.

  My new year's resolution is to start using signed tags for pulls. If
  that feels like a déjà vu, it's ((new year's) resolution), not (new
  (year's resolution))"

[ Taking this directly from Jani because Dave Airlie is only partially
  connected right now.  - Linus ]

* tag 'drm-intel-fixes-2017-01-05' of git://anongit.freedesktop.org/git/drm-intel:
  drm/i915: Prevent timeline updates whilst performing reset
  drm/i915: Silence allocation failure during sg_trim()
  drm/i915: Don't clflush before release phys object
  drm/i915: Fix oops in overlay due to frontbuffer tracking
  drm/i915: Fix oopses in the overlay code due to i915_gem_active stuff
  drm/i915: Initialize overlay->last_flip properly
  drm/i915: Move the min_pixclk[] handling to the end of readout
  drm/i915: Force VDD off on the new power seqeuencer before starting to use it
  drm/i915/gvt: fix typo in cfg_space range check
  drm/i915/gvt: fix an issue in emulating cfg space PCI_COMMAND
  drm/i915/gvt/kvmgt: trival: code cleanup
  drm/i915/gvt/kvmgt: prevent double-release of vgpu
  drm/i915/gvt/kvmgt: check returned slot for gfn
  drm/i915/gvt/kvmgt: dereference the pointer within lock
  drm/i915/gvt: reset the GGTT entry when vGPU created
  drm/i915/gvt: fix an error in opregion handling
2017-01-05 15:06:02 -08:00
Alan Stern
0a8fd13462 USB: fix problems with duplicate endpoint addresses
When checking a new device's descriptors, the USB core does not check
for duplicate endpoint addresses.  This can cause a problem when the
sysfs files for those endpoints are created; trying to create multiple
files with the same name will provoke a WARNING:

WARNING: CPU: 2 PID: 865 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x8a/0xa0
sysfs: cannot create duplicate filename
'/devices/platform/dummy_hcd.0/usb2/2-1/2-1:64.0/ep_05'
Kernel panic - not syncing: panic_on_warn set ...

CPU: 2 PID: 865 Comm: kworker/2:1 Not tainted 4.9.0-rc7+ #34
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: usb_hub_wq hub_event
 ffff88006bee64c8 ffffffff81f96b8a ffffffff00000001 1ffff1000d7dcc2c
 ffffed000d7dcc24 0000000000000001 0000000041b58ab3 ffffffff8598b510
 ffffffff81f968f8 ffffffff850fee20 ffffffff85cff020 dffffc0000000000
Call Trace:
 [<     inline     >] __dump_stack lib/dump_stack.c:15
 [<ffffffff81f96b8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51
 [<ffffffff8168c88e>] panic+0x1cb/0x3a9 kernel/panic.c:179
 [<ffffffff812b80b4>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565
 [<ffffffff819e70ca>] sysfs_warn_dup+0x8a/0xa0 fs/sysfs/dir.c:30
 [<ffffffff819e7308>] sysfs_create_dir_ns+0x178/0x1d0 fs/sysfs/dir.c:59
 [<     inline     >] create_dir lib/kobject.c:71
 [<ffffffff81fa1b07>] kobject_add_internal+0x227/0xa60 lib/kobject.c:229
 [<     inline     >] kobject_add_varg lib/kobject.c:366
 [<ffffffff81fa2479>] kobject_add+0x139/0x220 lib/kobject.c:411
 [<ffffffff82737a63>] device_add+0x353/0x1660 drivers/base/core.c:1088
 [<ffffffff82738d8d>] device_register+0x1d/0x20 drivers/base/core.c:1206
 [<ffffffff82cb77d3>] usb_create_ep_devs+0x163/0x260 drivers/usb/core/endpoint.c:195
 [<ffffffff82c9f27b>] create_intf_ep_devs+0x13b/0x200 drivers/usb/core/message.c:1030
 [<ffffffff82ca39d3>] usb_set_configuration+0x1083/0x18d0 drivers/usb/core/message.c:1937
 [<ffffffff82cc9e2e>] generic_probe+0x6e/0xe0 drivers/usb/core/generic.c:172
 [<ffffffff82caa7fa>] usb_probe_device+0xaa/0xe0 drivers/usb/core/driver.c:263

This patch prevents the problem by checking for duplicate endpoint
addresses during enumeration and skipping any duplicates.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-05 19:38:40 +01:00