Commit Graph

589556 Commits

Author SHA1 Message Date
Eric Engestrom
edb9a1b894 Documentation: networking: fix spelling mistakes
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-28 14:21:13 -04:00
David S. Miller
97d601d5de Merge branch 'bnxt_en-fixes'
Michael Chan says:

====================
bnxt_en: Bug fixes for net.

Only use MSIX on VF, and fix rx page buffers on architectures with
PAGE_SIZE >= 64K.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 16:18:46 -04:00
Michael Chan
89d0a06c51 bnxt_en: Divide a page into 32K buffers for the aggregation ring if necessary.
If PAGE_SIZE is bigger than BNXT_RX_PAGE_SIZE, that means the native CPU
page is bigger than the maximum length of the RX BD.  Divide the page
into multiple 32K buffers for the aggregation ring.

Add an offset field in the bnxt_sw_rx_agg_bd struct to keep track of the
page offset of each buffer.  Since each page can be referenced by multiple
buffer entries, call get_page() as needed to get the proper reference
count.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 16:18:45 -04:00
Michael Chan
2839f28bd5 bnxt_en: Limit RX BD pages to be no bigger than 32K.
The RX BD length field of this device is 16-bit, so the largest buffer
size is 65535.  For LRO and GRO, we allocate native CPU pages for the
aggregation ring buffers.  It won't work if the native CPU page size is
64K or bigger.

We fix this by defining BNXT_RX_PAGE_SIZE to be native CPU page size
up to 32K.  Replace PAGE_SIZE with BNXT_RX_PAGE_SIZE in all appropriate
places related to the rx aggregation ring logic.

The next patch will add additional logic to divide the page into 32K
chunks for aggrgation ring buffers if PAGE_SIZE is bigger than
BNXT_RX_PAGE_SIZE.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 16:18:45 -04:00
Michael Chan
1fa72e29e1 bnxt_en: Don't fallback to INTA on VF.
Only MSI-X can be used on a VF.  The driver should fail initialization
if it cannot successfully enable MSI-X.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 16:18:45 -04:00
Linus Torvalds
f28f20da70 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Handle v4/v6 mixed sockets properly in soreuseport, from Craig
    Gallak.

 2) Bug fixes for the new macsec facility (missing kmalloc NULL checks,
    missing locking around netdev list traversal, etc.) from Sabrina
    Dubroca.

 3) Fix handling of host routes on ifdown in ipv6, from David Ahern.

 4) Fix double-fdput in bpf verifier.  From Jann Horn.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (31 commits)
  bpf: fix double-fdput in replace_map_fd_with_map_ptr()
  net: ipv6: Delete host routes on an ifdown
  Revert "ipv6: Revert optional address flusing on ifdown."
  net/mlx4_en: fix spurious timestamping callbacks
  net: dummy: remove note about being Y by default
  cxgbi: fix uninitialized flowi6
  ipv6: Revert optional address flusing on ifdown.
  ipv4/fib: don't warn when primary address is missing if in_dev is dead
  net/mlx5: Add pci shutdown callback
  net/mlx5_core: Remove static from local variable
  net/mlx5e: Use vport MTU rather than physical port MTU
  net/mlx5e: Fix minimum MTU
  net/mlx5e: Device's mtu field is u16 and not int
  net/mlx5_core: Add ConnectX-5 to list of supported devices
  net/mlx5e: Fix MLX5E_100BASE_T define
  net/mlx5_core: Fix soft lockup in steering error flow
  qlcnic: Update version to 5.3.64
  net: stmmac: socfpga: Remove re-registration of reset controller
  macsec: fix netlink attribute validation
  macsec: add missing macsec prefix in uapi
  ...
2016-04-26 16:25:51 -07:00
Linus Torvalds
91ea692f87 Here are the latest bug fixes for ARM SoCs, mostly addressing
recent regressions. Changes are across several platforms, so
 I'm listing every change separately here.
 
 Regressions since 4.5:
 
  - A correction of the psci firmware DT binding, to prevent
    users from relying on unintended semantics
 
  - Actually getting the newly merged clock driver for some OMAP
    platforms to work
 
  - A revert of patches for the Qualcomm BAM, these need to be
    reworked for 4.7 to avoid breaking boards other than the one
    they were intended for
 
  - A correction for the I2C device nodes on the Socionext Uniphier
    platform
 
  - i.MX SDHCI was broken for non-DT platforms due to a change
    with the setting of the DMA mask
 
  - A revert of a patch that accidentally added a nonexisting
    clock on the Rensas "Porter" board
 
  - A couple of OMAP fixes that are all related to suspend after
    the power domain changes for dra7
 
  - On Mediatek, revert part of the power domain initialization
    changes that broke mt8173-evb
 
 Fixes for older bugs:
 
  - Workaround for an "external abort" in the omap34xx
    suspend/resume code.
 
  - The USB1/eSATA should not be listed as an excon device on
    am57xx-beagle-x15 (broken since v4.0)
 
  - A v4.5 regression in the TI AM33xx and AM43XX DT specifying
    incorrect DMA request lines for the GPMC
 
  - The jiffies calibration on Renesas platforms was incorrect
    for some modern CPU cores.
 
  - A hardware errata woraround for clockdomains on TI DRA7
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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:
 "Here are the latest bug fixes for ARM SoCs, mostly addressing recent
  regressions.  Changes are across several platforms, so I'm listing
  every change separately here.

  Regressions since 4.5:

   - A correction of the psci firmware DT binding, to prevent users from
     relying on unintended semantics

   - Actually getting the newly merged clock driver for some OMAP
     platforms to work

   - A revert of patches for the Qualcomm BAM, these need to be reworked
     for 4.7 to avoid breaking boards other than the one they were
     intended for

   - A correction for the I2C device nodes on the Socionext Uniphier
     platform

   - i.MX SDHCI was broken for non-DT platforms due to a change with the
     setting of the DMA mask

   - A revert of a patch that accidentally added a nonexisting clock on
     the Rensas "Porter" board

   - A couple of OMAP fixes that are all related to suspend after the
     power domain changes for dra7

   - On Mediatek, revert part of the power domain initialization changes
     that broke mt8173-evb

  Fixes for older bugs:

   - Workaround for an "external abort" in the omap34xx suspend/resume
     code.

   - The USB1/eSATA should not be listed as an excon device on
     am57xx-beagle-x15 (broken since v4.0)

   - A v4.5 regression in the TI AM33xx and AM43XX DT specifying
     incorrect DMA request lines for the GPMC

   - The jiffies calibration on Renesas platforms was incorrect for some
     modern CPU cores.

   - A hardware errata woraround for clockdomains on TI DRA7"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  drivers: firmware: psci: unify enable-method binding on ARM {64,32}-bit systems
  arm64: dts: uniphier: fix I2C nodes of PH1-LD20
  ARM: shmobile: timer: Fix preset_lpj leading to too short delays
  Revert "ARM: dts: porter: Enable SCIF_CLK frequency and pins"
  ARM: dts: r8a7791: Don't disable referenced optional clocks
  Revert "ARM: OMAP: Catch callers of revision information prior to it being populated"
  ARM: OMAP3: Fix external abort on 36xx waking from off mode idle
  ARM: dts: am57xx-beagle-x15: remove extcon_usb1
  ARM: dts: am437x: Fix GPMC dma properties
  ARM: dts: am33xx: Fix GPMC dma properties
  Revert "soc: mediatek: SCPSYS: Fix double enabling of regulators"
  ARM: mach-imx: sdhci-esdhc-imx: initialize DMA mask
  ARM: DRA7: clockdomain: Implement timer workaround for errata i874
  ARM: OMAP: Catch callers of revision information prior to it being populated
  ARM: dts: dra7: Correct clock tree for sys_32k_ck
  ARM: OMAP: DRA7: Provide proper class to omap2_set_globals_tap
  ARM: OMAP: DRA7: wakeupgen: Skip SAR save for wakeupgen
  Revert "dts: msm8974: Add dma channels for blsp2_i2c1 node"
  Revert "dts: msm8974: Add blsp2_bam dma node"
  ARM: dts: Add clocks for dm814x ADPLL
2016-04-26 16:17:01 -07:00
Linus Torvalds
8ead9dd547 devpts: more pty driver interface cleanups
This is more prep-work for the upcoming pty changes.  Still just code
cleanup with no actual semantic changes.

This removes a bunch pointless complexity by just having the slave pty
side remember the dentry associated with the devpts slave rather than
the inode.  That allows us to remove all the "look up the dentry" code
for when we want to remove it again.

Together with moving the tty pointer from "inode->i_private" to
"dentry->d_fsdata" and getting rid of pointless inode locking, this
removes about 30 lines of code.  Not only is the end result smaller,
it's simpler and easier to understand.

The old code, for example, depended on the d_find_alias() to not just
find the dentry, but also to check that it is still hashed, which in
turn validated the tty pointer in the inode.

That is a _very_ roundabout way to say "invalidate the cached tty
pointer when the dentry is removed".

The new code just does

	dentry->d_fsdata = NULL;

in devpts_pty_kill() instead, invalidating the tty pointer rather more
directly and obviously.  Don't do something complex and subtle when the
obvious straightforward approach will do.

The rest of the patch (ie apart from code deletion and the above tty
pointer clearing) is just switching the calling convention to pass the
dentry or file pointer around instead of the inode.

Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Serge Hallyn <serge.hallyn@ubuntu.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Cc: Jann Horn <jann@thejh.net>
Cc: Greg KH <greg@kroah.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Florian Weimer <fw@deneb.enyo.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-26 15:47:32 -07:00
Jann Horn
8358b02bf6 bpf: fix double-fdput in replace_map_fd_with_map_ptr()
When bpf(BPF_PROG_LOAD, ...) was invoked with a BPF program whose bytecode
references a non-map file descriptor as a map file descriptor, the error
handling code called fdput() twice instead of once (in __bpf_map_get() and
in replace_map_fd_with_map_ptr()). If the file descriptor table of the
current task is shared, this causes f_count to be decremented too much,
allowing the struct file to be freed while it is still in use
(use-after-free). This can be exploited to gain root privileges by an
unprivileged user.

This bug was introduced in
commit 0246e64d9a ("bpf: handle pseudo BPF_LD_IMM64 insn"), but is only
exploitable since
commit 1be7f75d16 ("bpf: enable non-root eBPF programs") because
previously, CAP_SYS_ADMIN was required to reach the vulnerable code.

(posted publicly according to request by maintainer)

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26 17:37:21 -04:00
David Ahern
38bd10c447 net: ipv6: Delete host routes on an ifdown
It was a simple idea -- save IPv6 configured addresses on a link down
so that IPv6 behaves similar to IPv4. As always the devil is in the
details and the IPv6 stack as too many behavioral differences from IPv4
making the simple idea more complicated than it needs to be.

The current implementation for keeping IPv6 addresses can panic or spit
out a warning in one of many paths:

1. IPv6 route gets an IPv4 route as its 'next' which causes a panic in
   rt6_fill_node while handling a route dump request.

2. rt->dst.obsolete is set to DST_OBSOLETE_DEAD hitting the WARN_ON in
   fib6_del

3. Panic in fib6_purge_rt because rt6i_ref count is not 1.

The root cause of all these is references related to the host route for
an address that is retained.

So, this patch deletes the host route every time the ifdown loop runs.
Since the host route is deleted and will be re-generated an up there is
no longer a need for the l3mdev fix up. On the 'admin up' side move
addrconf_permanent_addr into the NETDEV_UP event handling so that it
runs only once versus on UP and CHANGE events.

All of the current panics and warnings appear to be related to
addresses on the loopback device, but given the catastrophic nature when
a bug is triggered this patch takes the conservative approach and evicts
all host routes rather than trying to determine when it can be re-used
and when it can not. That can be a later optimizaton if desired.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26 11:48:26 -04:00
David S. Miller
6a923934c3 Revert "ipv6: Revert optional address flusing on ifdown."
This reverts commit 841645b5f2.

Ok, this puts the feature back.  I've decided to apply David A.'s
bug fix and run with that rather than make everyone wait another
whole release for this feature.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26 11:47:41 -04:00
Sudeep Holla
978fa43623 drivers: firmware: psci: unify enable-method binding on ARM {64,32}-bit systems
Currently ARM CPUs DT bindings allows different enable-method value for
PSCI based systems. On ARM 64-bit this property is required and must be
"psci" while on ARM 32-bit systems this property is optional and must
be "arm,psci" if present.

However, "arm,psci" has always been the compatible string for the PSCI
node, and was never intended to be the enable-method. So this is a bug
in the binding and not a deliberate attempt at specifying 32-bit
differently.

This is problematic if 32-bit OS is run on 64-bit system which has
"psci" as enable-method rather than the expected "arm,psci".

So let's unify the value into "psci" and remove support for "arm,psci"
before it finds any users.

Reported-by: Soby Mathew <Soby.Mathew@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-04-26 12:46:08 +02:00
Eric Dumazet
fc96256c90 net/mlx4_en: fix spurious timestamping callbacks
When multiple skb are TX-completed in a row, we might incorrectly keep
a timestamp of a prior skb and cause extra work.

Fixes: ec693d4701 ("net/mlx4_en: Add HW timestamping (TS) support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26 01:13:18 -04:00
Ivan Babrou
9f5db53507 net: dummy: remove note about being Y by default
Signed-off-by: Ivan Babrou <ivan@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-26 01:11:55 -04:00
Jiri Benc
3d6d30d60a cxgbi: fix uninitialized flowi6
ip6_route_output looks into different fields in the passed flowi6 structure,
yet cxgbi passes garbage in nearly all those fields. Zero the structure out
first.

Fixes: fc8d0590d9 ("libcxgbi: Add ipv6 api to driver")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-25 16:20:49 -04:00
David S. Miller
841645b5f2 ipv6: Revert optional address flusing on ifdown.
This reverts the following three commits:

70af921db6
799977d9aa
f1705ec197

The feature was ill conceived, has terrible semantics, and has added
nothing but regressions to the already fragile ipv6 stack.

Fixes: f1705ec197 ("net: ipv6: Make address flushing on ifdown optional")
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-25 15:33:55 -04:00
Linus Torvalds
bcc981e9ed Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes a couple of regressions in the talitos driver that were
  introduced back in 4.3.

  The first bug causes a crash when the driver's AEAD functionality is
  used while the second bug prevents its AEAD feature from working once
  you get past the first bug"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: talitos - fix AEAD tcrypt tests
  crypto: talitos - fix crash in talitos_cra_init()
2016-04-25 09:32:45 -07:00
Kevin Hilman
004cb62efd Enable dm814x and dra62x clock driver. This branch has a dependency
to the clk-ti branch from the Linux clk tree for the ADPLL clock driver.
 Otherwise things won't keep booting properly when we flip over to use
 the clock driver instead of fixed clocks set up by the bootloader.
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Merge tag 'omap-for-v4.6/dt-ti81xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Enable dm814x and dra62x clock driver. This branch has a dependency
to the clk-ti branch from the Linux clk tree for the ADPLL clock driver.
Otherwise things won't keep booting properly when we flip over to use
the clock driver instead of fixed clocks set up by the bootloader.

* tag 'omap-for-v4.6/dt-ti81xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Add clocks for dm814x ADPLL
2016-04-25 08:55:17 -07:00
Paolo Abeni
391a20333b ipv4/fib: don't warn when primary address is missing if in_dev is dead
After commit fbd40ea018 ("ipv4: Don't do expensive useless work
during inetdev destroy.") when deleting an interface,
fib_del_ifaddr() can be executed without any primary address
present on the dead interface.

The above is safe, but triggers some "bug: prim == NULL" warnings.

This commit avoids warning if the in_dev is dead

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 23:26:29 -04:00
Linus Torvalds
02da2d7217 Linux 4.6-rc5 2016-04-24 16:17:05 -07:00
David S. Miller
91e019de2f Merge branch 'mlx5-fixes'
Saeed Mahameed says:

====================
mlx5 driver updates and fixes

Changes from V0:
	- Dropped: ("net/mlx5e: Reset link modes upon setting speed to zero")
	- Fixed compilation issue introduced to mlx5_ib driver.
	- Rebased to df63719390 ('Revert "Prevent NUll pointer dereference with two PHYs on cpsw"')

This series has few bug fixes for mlx5 core and ethernet driver.

Eli fixed a wrong static local variable declaration in flow steering API.
Majd added the support of ConnectX-5 PF and VF and added the support
for kernel shutdown pci callback for more robust reboot procedures.
Maor fixed a soft lockup in flow steering.
Rana fixed a wrog speed define in mlx5 EN driver.
I also had the chance to introduce some bug fixes in mlx5 EN mtu
reporting and handling.

For -stable:
	net/mlx5_core: Fix soft lockup in steering error flow
	net/mlx5e: Device's mtu field is u16 and not int
	net/mlx5e: Fix minimum MTU
	net/mlx5e: Use vport MTU rather than physical port MTU
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:50 -04:00
Majd Dibbiny
5fc7197d3a net/mlx5: Add pci shutdown callback
This patch introduces kexec support for mlx5.
When switching kernels, kexec() calls shutdown, which unloads
the driver and cleans its resources.

In addition, remove unregister netdev from shutdown flow. This will
allow a clean shutdown, even if some netdev clients did not release their
reference from this netdev. Releasing The HW resources only is enough as
the kernel is shutting down

Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:39 -04:00
Eli Cohen
78228cbdeb net/mlx5_core: Remove static from local variable
The static is not required and breaks re-entrancy if it will be required.

Fixes: 2530236303 ("net/mlx5_core: Flow steering tree initialization")
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:39 -04:00
Saeed Mahameed
cd255efff9 net/mlx5e: Use vport MTU rather than physical port MTU
Set and report vport MTU rather than physical MTU,
Driver will set both vport and physical port mtu and will
rely on the query of vport mtu.

SRIOV VFs have to report their MTU to their vport manager (PF),
and this will allow them to work with any MTU they need
without failing the request.

Also for some cases where the PF is not a port owner, PF can
work with MTU less than the physical port mtu if set physical
port mtu didn't take effect.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:39 -04:00
Saeed Mahameed
d8edd2469a net/mlx5e: Fix minimum MTU
Minimum MTU that can be set in Connectx4 device is 68.

This fixes the case where a user wants to set invalid MTU,
the driver will fail to satisfy this request and the interface
will stay down.

It is better to report an error and continue working with old
mtu.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:39 -04:00
Saeed Mahameed
046339eaab net/mlx5e: Device's mtu field is u16 and not int
For set/query MTU port firmware commands the MTU field
is 16 bits, here I changed all the "int mtu" parameters
of the functions wrapping those firmware commands to be u16.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:38 -04:00
Majd Dibbiny
64dbbdfef2 net/mlx5_core: Add ConnectX-5 to list of supported devices
Add the upcoming ConnectX-5 devices (PF and VF) to the list of
supported devices by the mlx5 driver.

Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:38 -04:00
Rana Shahout
6e4c218946 net/mlx5e: Fix MLX5E_100BASE_T define
Bit 25 of eth_proto_capability in PTYS register is
1000Base-TT and not 100Base-T.

Fixes: f62b8bb8f2 ('net/mlx5: Extend mlx5_core to
support ConnectX-4 Ethernet functionality')
Signed-off-by: Rana Shahout <ranas@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:38 -04:00
Maor Gottlieb
c3f9bf628b net/mlx5_core: Fix soft lockup in steering error flow
In the error flow of adding flow rule to auto-grouped flow
table, we call to tree_remove_node.

tree_remove_node locks the node's parent, however the node's parent
is already locked by mlx5_add_flow_rule and this causes a deadlock.
After this patch, if we failed to add the flow rule, we unlock the
flow table before calling to tree_remove_node.

fixes: f0d22d1874 ('net/mlx5_core: Introduce flow steering autogrouped
flow table')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reported-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:51:38 -04:00
Manish Chopra
45c78e0219 qlcnic: Update version to 5.3.64
Just updating the version as many fixes got
accumulated over 5.3.63

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:45:04 -04:00
Marek Vasut
3c201b5a84 net: stmmac: socfpga: Remove re-registration of reset controller
Both socfpga_dwmac_parse_data() in dwmac-socfpga.c and stmmac_dvr_probe()
in stmmac_main.c functions call devm_reset_control_get() to register an
reset controller for the stmmac. This results in an attempt to register
two reset controllers for the same non-shared reset line.

The first attempt to register the reset controller works fine. The second
attempt fails with warning from the reset controller core, see below.
The warning is produced because the reset line is non-shared and thus
it is allowed to have only up-to one reset controller associated with
that reset line, not two or more.

The solution has multiple parts. First, the original socfpga_dwmac_init()
is tweaked to use reset controller pointer from the stmmac_priv (private
data of the stmmac core) instead of the local instance, which was used
before. The local re-registration of the reset controller is removed.

Next, the socfpga_dwmac_init() is moved after stmmac_dvr_probe() in the
probe function. This order is legal according to Altera and it makes the
code much easier, since there is no need to temporarily register and
unregister the reset controller ; the reset controller is already registered
by the stmmac_dvr_probe().

Finally, plat_dat->exit and socfpga_dwmac_exit() is no longer necessary,
since the functionality is already performed by the stmmac core.

------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at drivers/reset/core.c:187 __of_reset_control_get+0x218/0x270
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc4-next-20160419-00015-gabb2477-dirty #4
Hardware name: Altera SOCFPGA
[<c010f290>] (unwind_backtrace) from [<c010b82c>] (show_stack+0x10/0x14)
[<c010b82c>] (show_stack) from [<c0373da4>] (dump_stack+0x94/0xa8)
[<c0373da4>] (dump_stack) from [<c011bcc0>] (__warn+0xec/0x104)
[<c011bcc0>] (__warn) from [<c011bd88>] (warn_slowpath_null+0x20/0x28)
[<c011bd88>] (warn_slowpath_null) from [<c03a6eb4>] (__of_reset_control_get+0x218/0x270)
[<c03a6eb4>] (__of_reset_control_get) from [<c03a701c>] (__devm_reset_control_get+0x54/0x90)
[<c03a701c>] (__devm_reset_control_get) from [<c041fa30>] (stmmac_dvr_probe+0x1b4/0x8e8)
[<c041fa30>] (stmmac_dvr_probe) from [<c04298c8>] (socfpga_dwmac_probe+0x1b8/0x28c)
[<c04298c8>] (socfpga_dwmac_probe) from [<c03d6ffc>] (platform_drv_probe+0x4c/0xb0)
[<c03d6ffc>] (platform_drv_probe) from [<c03d54ec>] (driver_probe_device+0x224/0x2bc)
[<c03d54ec>] (driver_probe_device) from [<c03d5630>] (__driver_attach+0xac/0xb0)
[<c03d5630>] (__driver_attach) from [<c03d382c>] (bus_for_each_dev+0x6c/0xa0)
[<c03d382c>] (bus_for_each_dev) from [<c03d4ad4>] (bus_add_driver+0x1a4/0x21c)
[<c03d4ad4>] (bus_add_driver) from [<c03d60ac>] (driver_register+0x78/0xf8)
[<c03d60ac>] (driver_register) from [<c0101760>] (do_one_initcall+0x40/0x170)
[<c0101760>] (do_one_initcall) from [<c0800e38>] (kernel_init_freeable+0x1dc/0x27c)
[<c0800e38>] (kernel_init_freeable) from [<c05d1bd4>] (kernel_init+0x8/0x114)
[<c05d1bd4>] (kernel_init) from [<c01076f8>] (ret_from_fork+0x14/0x3c)
---[ end trace 059d2fbe87608fa9 ]---

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Matthew Gerlach <mgerlach@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: David S. Miller <davem@davemloft.net>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:40:24 -04:00
David S. Miller
b6742cab0d Merge branch 'macsec-fixes'
Sabrina Dubroca says:

====================
macsec: a few fixes

Some small fixes for the macsec driver:
 - possible NULL pointer dereferences
 - netlink dumps fixes: RTNL locking, consistent dumps
 - a reference counting bug
 - wrong name for uapi constant
 - a few memory leaks

Patches 1 to 5 are the same as in v1, patches 6 to 9 are new.
Patch 6 fixes the memleak that Lance spotted in v1.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:32:05 -04:00
Sabrina Dubroca
4b1fb9352f macsec: fix netlink attribute validation
macsec_validate_attr should check IFLA_MACSEC_REPLAY_PROTECT (not
IFLA_MACSEC_PROTECT) to verify that the replay protection and replay
window arguments are correct.

Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:59 -04:00
Sabrina Dubroca
748164802c macsec: add missing macsec prefix in uapi
I accidentally forgot some MACSEC_ prefixes in if_macsec.h.

Fixes: dece8d2b78 ("uapi: add MACsec bits")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:59 -04:00
Sabrina Dubroca
38787fc209 macsec: fix SA leak if initialization fails
Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Reported-by: Lance Richardson <lrichard@redhat.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
Sabrina Dubroca
960d5848db macsec: fix memory leaks around rx_handler (un)registration
We leak a struct macsec_rxh_data when we unregister the rx_handler in
macsec_dellink.
We also leak a struct macsec_rxh_data in register_macsec_dev if we fail
to register the rx_handler.

Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
Sabrina Dubroca
96cfc5052c macsec: add consistency check to netlink dumps
Use genl_dump_check_consistent in dump_secy.

Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Suggested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
Sabrina Dubroca
c3b7d0bd7a macsec: fix rx_sa refcounting with decrypt callback
The decrypt callback macsec_decrypt_done needs a reference on the rx_sa
and releases it before returning, but macsec_handle_frame already
put that reference after macsec_decrypt returned NULL.

Set rx_sa to NULL when the decrypt callback runs so that
macsec_handle_frame knows it must not release the reference.

Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
Sabrina Dubroca
497f358aa4 macsec: don't put a NULL rxsa
The "deliver:" path of macsec_handle_frame can be called with
rx_sa == NULL.  Check rx_sa != NULL before calling macsec_rxsa_put().

Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
Sabrina Dubroca
c10c63ea73 macsec: take rtnl lock before for_each_netdev
Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
Sabrina Dubroca
72f2a05b8f macsec: add missing NULL check after kmalloc
Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:31:58 -04:00
David S. Miller
3d05a06d31 Merge branch 'bridge-mdb-fixes'
Jiri Pirko says:

====================
bridge: mdb: Couple of fixes

Elad says:

This patchset fixes two problems reported by Nikolay Aleksandrov. The first
problem is that the MDB offload flag might be accesed without helding the
multicast_lock.
The second problem is that the switchdev mdb offload is deferred and
the offload bit was marked regardless if the operation succeeded or not.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:23:38 -04:00
Elad Raz
45ebcce568 bridge: mdb: Marking port-group as offloaded
There is a race-condition when updating the mdb offload flag without using
the mulicast_lock. This reverts commit 9e8430f8d6 ("bridge: mdb:
Passing the port-group pointer to br_mdb module").

This patch marks offloaded MDB entry as "offload" by changing the port-
group flags and marks it as MDB_PG_FLAGS_OFFLOAD.

When switchdev PORT_MDB succeeded and adds a multicast group, a completion
callback is been invoked "br_mdb_complete". The completion function
locks the multicast_lock and finds the right net_bridge_port_group and
marks it as offloaded.

Fixes: 9e8430f8d6 ("bridge: mdb: Passing the port-group pointer to br_mdb module")
Reported-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:23:32 -04:00
Elad Raz
6dd684c0fe bridge: mdb: Common function for mdb entry translation
There is duplicate code that translates br_mdb_entry to br_ip let's wrap it
in a common function.

Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:23:32 -04:00
Elad Raz
7ceb2afbd6 switchdev: Adding complete operation to deferred switchdev ops
When using switchdev deferred operation (SWITCHDEV_F_DEFER), the operation
is executed in different context and the application doesn't have any way
to get the operation real status.

Adding a completion callback fixes that. This patch adds fields to
switchdev_attr and switchdev_obj "complete_priv" field which is used by
the "complete" callback.

Application can set a complete function which will be called once the
operation executed.

Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:23:32 -04:00
Grygorii Strashko
f75cfbadde MAINTAINERS: net: add entry for TI Ethernet Switch drivers
Add record for TI Ethernet Switch Driver CPSW/CPDMA/MDIO HW
(am33/am43/am57/dr7/davinci) to ensure that related patches
will go through dedicated linux-omap list.

Also add Mugunthan as maintainer and myself as the reviewer.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-24 14:19:47 -04:00
Linus Torvalds
913f201083 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal fixes from Eduardo Valentin:
 "Specifics in this pull request:

   - Fixes in mediatek and OF thermal drivers

   - Fixes in power_allocator governor

   - More fixes of unsigned to int type change in thermal_core.c.

  These change have been CI tested using KernelCI bot. \o/"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: fix Mediatek thermal controller build
  thermal: consistently use int for trip temp
  thermal: fix mtk_thermal build dependency
  thermal: minor mtk_thermal.c cleanups
  thermal: power_allocator: req_range multiplication should be a 64 bit type
  thermal: of: add __init attribute
2016-04-23 17:15:39 -07:00
Linus Torvalds
4dfa5739d9 asm-generic changes for 4.6-rc
Here is one patch to wire up the preadv/pwritev system calls in the
 generic system call table, which is required for all architectures
 that were merged in the last few years, including arm64.
 
 Usually these get merged along with the syscall implementation
 or one of the architecture trees, but this time that did not
 happen.
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Merge tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic update from Arnd Bergmann:
 "Here is one patch to wire up the preadv/pwritev system calls in the
  generic system call table, which is required for all architectures
  that were merged in the last few years, including arm64.

  Usually these get merged along with the syscall implementation or one
  of the architecture trees, but this time that did not happen.

  Andre and Christoph both sent a version of this patch, I picked the
  one I got first"

* tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  generic syscalls: wire up preadv2 and pwritev2 syscalls
2016-04-23 14:53:11 -07:00
Andre Przywara
987aedb5d6 generic syscalls: wire up preadv2 and pwritev2 syscalls
These new syscalls are implemented as generic code, so enable them for
architectures like arm64 which use the generic syscall table.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-04-23 22:38:08 +02:00
Arnd Bergmann
92f27f98ce Qualcomm Fixes for v4.6-rc2
* Revert BAM usage on MSM8974 boards
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Merge tag 'qcom-fixes-for-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into fixes

Merge "Qualcomm Fixes for v4.6-rc2" from Andy Gross:

* Revert BAM usage on MSM8974 boards

* tag 'qcom-fixes-for-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  Revert "dts: msm8974: Add dma channels for blsp2_i2c1 node"
  Revert "dts: msm8974: Add blsp2_bam dma node"
2016-04-23 22:10:48 +02:00