linux-2.6-microblaze.git
7 years agoqede: allocate enough data for ->arfs_fltr_bmap
Dan Carpenter [Wed, 19 Apr 2017 09:54:33 +0000 (12:54 +0300)]
qede: allocate enough data for ->arfs_fltr_bmap

We've got the number of longs, yes, but we should multiply by
sizeof(long) to get the number of bytes needed.

Fixes: e4917d46a653 ("qede: Add aRFS support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotcp_cubic: fix typo in module param description
Chema Gonzalez [Wed, 19 Apr 2017 02:22:23 +0000 (19:22 -0700)]
tcp_cubic: fix typo in module param description

Signed-off-by: Chema Gonzalez <chemag@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoAdd Jiri Pirko as TC subsystem co-maintainer
Jamal Hadi Salim [Wed, 19 Apr 2017 01:24:00 +0000 (21:24 -0400)]
Add Jiri Pirko as TC subsystem co-maintainer

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoAdd Cong Wang as TC subsystem co-maintainer
Jamal Hadi Salim [Wed, 19 Apr 2017 01:23:59 +0000 (21:23 -0400)]
Add Cong Wang as TC subsystem co-maintainer

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Thu, 20 Apr 2017 20:10:31 +0000 (16:10 -0400)]
Merge branch '10GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2017-04-18

This series contains updates to mainly ixgbe with only one ixgbevf change.

Usha adds a check to ensure the creation of number of VF's is valid based
on the traffic classes configured, all to avoid transmit hangs.

Joe Perches reduces the use of pr_cont since the output can be interleaved
by other processes.

Tony cleans up the code overwriting the KX4 config, which is configured by
the NVM.  Adds a check for MMNGC.MNG_VETO, to resolve an issue where we
were getting a link loss for the BMC when loading the driver.

Don fixes up SGMII x553 config details which were missed in earlier
implementations.  Added support for x552 XFI backplane interface support.
Cleaned up an unused define, which was causing confusion on supported
devices.

Emil fixes a link issue on KR parts by making sure the default setting is
set.  Refactors the code so that the code for allocating memory for the
list of MAC addresses that the VFs can use into its own function.  Made
some code cleans to help readability and ensure notification of SRIOV
being enabled is done upon completion.  Fixed an issue where if we failed
to allocate vfinfo in __ixgbe_enable_sriov() the driver would crash with
a NULL pointer dereference.

Philippe Reynes updates ixgbevf to use the new API for
{get|set}_link_ksettings.

Alex increases the headroom allocation when using build_skb() on a
system with 4K pages.  Fixed an issue in ixgbe_dump() where we were no
longer clearing the status bit.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ipv6: Fix UDP early demux lookup with udp_l3mdev_accept=0
subashab@codeaurora.org [Tue, 18 Apr 2017 17:39:41 +0000 (11:39 -0600)]
net: ipv6: Fix UDP early demux lookup with udp_l3mdev_accept=0

David Ahern reported that 5425077d73e0c ("net: ipv6: Add early demux
handler for UDP unicast") breaks udp_l3mdev_accept=0 since early
demux for IPv6 UDP was doing a generic socket lookup which does not
require an exact match. Fix this by making UDPv6 early demux match
connected sockets only.

v1->v2: Take reference to socket after match as suggested by Eric
v2->v3: Add comment before break

Fixes: 5425077d73e0c ("net: ipv6: Add early demux handler for UDP unicast")
Reported-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Cc: Eric Dumazet <edumazet@google.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Tested-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'tcp_poll-flakes'
David S. Miller [Thu, 20 Apr 2017 19:42:11 +0000 (15:42 -0400)]
Merge branch 'tcp_poll-flakes'

Eric Dumazet says:

====================
tcp: address two poll() flakes

Some packetdrill tests are failing when host kernel is using ASAN
or other debugging infrastructure.

I was able to fix the flakes by making sure we were not
sending wakeup events too soon.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotcp: remove poll() flakes with FastOpen
Eric Dumazet [Tue, 18 Apr 2017 16:45:52 +0000 (09:45 -0700)]
tcp: remove poll() flakes with FastOpen

When using TCP FastOpen for an active session, we send one wakeup event
from tcp_finish_connect(), right before the data eventually contained in
the received SYNACK is queued to sk->sk_receive_queue.

This means that depending on machine load or luck, poll() users
might receive POLLOUT events instead of POLLIN|POLLOUT

To fix this, we need to move the call to sk->sk_state_change()
after the (optional) call to tcp_rcv_fastopen_synack()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotcp: remove poll() flakes when receiving RST
Eric Dumazet [Tue, 18 Apr 2017 16:45:51 +0000 (09:45 -0700)]
tcp: remove poll() flakes when receiving RST

When a RST packet is processed, we send two wakeup events to interested
polling users.

First one by a sk->sk_error_report(sk) from tcp_reset(),
followed by a sk->sk_state_change(sk) from tcp_done().

Depending on machine load and luck, poll() can either return POLLERR,
or POLLIN|POLLOUT|POLLERR|POLLHUP (this happens on 99 % of the cases)

This is probably fine, but we can avoid the confusion by reordering
things so that we have more TCP fields updated before the first wakeup.

This might even allow us to remove some barriers we added in the past.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'mlxsw-flow-based-forwarding-OVS'
David S. Miller [Thu, 20 Apr 2017 19:32:32 +0000 (15:32 -0400)]
Merge branch 'mlxsw-flow-based-forwarding-OVS'

Jiri Pirko says:

====================
mlxsw: Allow flow based forwarding in OVS

This patchset does some fixes so the HW is setup correctly to do
flow-based (ACL based) forwarding for OVS-enslaved port.

The first patch is just trivial fix spotted on the way.

Patches 2-4 take care of proper FID setup which HW needs in order to
for ACL based forwarding.

The 7th patch (with dependency of patch 5 and 6) takes care of proper setup
of ports that are enslaved in OVS.

The last patch implements new FID miss trap that is used to push
packets belonging to unknown flows to kernel and userspace.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Add FID miss trap
Jiri Pirko [Tue, 18 Apr 2017 14:55:38 +0000 (16:55 +0200)]
mlxsw: spectrum: Add FID miss trap

When there is no FID set for a specific packet, the HW will drop it.
However, by default these packets are useful to be delivered to CPU as
it can inspect them and program HW accordingly. So add this trap.

This would only ever happen when port is enslaved to an OVS master.
Otherwise, packets would be dropped during VLAN / STP filtering,
before FID classification.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Allow ports to work under OVS master
Jiri Pirko [Tue, 18 Apr 2017 14:55:37 +0000 (16:55 +0200)]
mlxsw: spectrum: Allow ports to work under OVS master

>From now on, a port can become a slave of OVS master. All vlans
are enabled, STP state is set to "forwarding". It is up to the OVS
userspace daemon to setup the flows either in kernel or in HW using TC
flower offload.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: add netif_is_ovs_port helper
Jiri Pirko [Tue, 18 Apr 2017 14:55:36 +0000 (16:55 +0200)]
net: add netif_is_ovs_port helper

To find out if a netdev is an OVS port.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Teach mlxsw_sp_port_vlan_set to accept any vlan range
Jiri Pirko [Tue, 18 Apr 2017 14:55:35 +0000 (16:55 +0200)]
mlxsw: spectrum: Teach mlxsw_sp_port_vlan_set to accept any vlan range

So far, mlxsw_sp_port_vlan_set range is limited by
MLXSW_REG_SPVM_REC_MAX_COUNT. In spectrum_switchdev code this is
wrapped up by a helper function which actually does multiple calls
to FW for bigger ranges. Move the code into mlxsw_sp_port_vlan_set
and use it always. That allows caller not to care about the range.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum_flower: Set dummy FID before forward action
Jiri Pirko [Tue, 18 Apr 2017 14:55:34 +0000 (16:55 +0200)]
mlxsw: spectrum_flower: Set dummy FID before forward action

HW requires the FID to be valid in order for the forward action to work.
So regardless of the current FID validity, just set the dummy FID which
would do the trick.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Add dummy FID initialization
Jiri Pirko [Tue, 18 Apr 2017 14:55:33 +0000 (16:55 +0200)]
mlxsw: spectrum: Add dummy FID initialization

For forwarding using ACL action, HW needs a valid FID to be setup. It
does not actually use it, so it can be any valid FID. So create a dummy
FID only for this purpose.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Implement action to set FID
Jiri Pirko [Tue, 18 Apr 2017 14:55:32 +0000 (16:55 +0200)]
mlxsw: spectrum: Implement action to set FID

Implement part of multipurpose Virtual Router and Forwarding Domain
Action that takes care of setting up FID. We need to use it to be able
to forward packets using ACL action when no FID is associated on RX.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Fix indent in mlxsw_sp_netdevice_port_upper_event
Jiri Pirko [Tue, 18 Apr 2017 14:55:31 +0000 (16:55 +0200)]
mlxsw: spectrum: Fix indent in mlxsw_sp_netdevice_port_upper_event

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobindings: net: stmmac: add missing note about LPI interrupt
Niklas Cassel [Tue, 18 Apr 2017 12:39:53 +0000 (14:39 +0200)]
bindings: net: stmmac: add missing note about LPI interrupt

The hardware has a LPI interrupt.
There is already code in the stmmac driver to parse and handle the
interrupt. However, this information was missing from the DT binding.

At the same time, improve the description of the existing interrupts.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-By: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: remove reference to sock_filter_ext from kerneldoc comment
Tobias Klauser [Tue, 18 Apr 2017 09:27:00 +0000 (11:27 +0200)]
bpf: remove reference to sock_filter_ext from kerneldoc comment

struct sock_filter_ext didn't make it into the tree and is now called
struct bpf_insn. Reword the kerneldoc comment for bpf_convert_filter()
accordingly.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'mac80211-next-for-davem-2017-04-18' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Thu, 20 Apr 2017 17:54:40 +0000 (13:54 -0400)]
Merge tag 'mac80211-next-for-davem-2017-04-18' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
My last pull request has been a while, we now have:
 * connection quality monitoring with multiple thresholds
 * support for FILS shared key authentication offload
 * pre-CAC regulatory compliance - only ETSI allows this
 * sanity check for some rate confusion that hit ChromeOS
   (but nobody else uses it, evidently)
 * some documentation updates
 * lots of cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'dsa-LAN9303'
David S. Miller [Thu, 20 Apr 2017 17:48:55 +0000 (13:48 -0400)]
Merge branch 'dsa-LAN9303'

Juergen Borleis says:

====================
net: dsa: add SMSC/Microchip LAN9303 three port ethernet switch driver

The LAN9303 is a three port 10/100 ethernet switch with integrated phys
for the two external ethernet ports. The third port is an RMII/MII
interface to a host master network interface (e.g. fixed link).

While the LAN9303 device itself supports offload packet processing, this
driver does not make use of it yet. This driver just configures the device
to provide two separate network interfaces (which is the default state of
a DSA device).

Please note: the "MDIO managed mode" driver part isn't tested yet. I have
used and tested the "I2C managed mode" only.

Changes in v6:

- fix support to use the driver as a module (core, i2c and mdio)
- license info added in all parts of the driver (for module support)

Changes in v5:

- add missing include file to 'net/dsa/tag_lan9303.c'

Changes in v4:

- rebased on net-next, 'net/dsa/tag_lan9303.c' adapted to changed API

Changes in v3:

- 'ds_to_lan9303()' removed
- special PHY reg MII_LAN911X_SPECIAL_CONTROL_STATUS mapping removed
- compatible strings for I2C and MDIO are now different
- MDIO-managed-mode devicetree binding added (still compile time tested only)

Changes in v2:

- code moved to 'drivers/net/dsa'
- timeouts in completion wait loops
- macros instead of various magic numbers
- development code removed
- devicetree property names changed
- devicetree example adapted
- tried to avoid to mix 'switching' and 'forwarding'...

Comments are welcome.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: LAN9303: add MDIO managed mode support
Juergen Beisert [Tue, 18 Apr 2017 08:48:27 +0000 (10:48 +0200)]
net: dsa: LAN9303: add MDIO managed mode support

When the LAN9303 device is in MDIO manged mode, all register accesses must
be done via MDIO.

Please note: this code is compile time tested only due to the absence of such
configured hardware. It is based on a patch from Stefan Roese from 2014.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
CC: devicetree@vger.kernel.org
CC: robh+dt@kernel.org
CC: mark.rutland@arm.com
CC: sr@denx.de
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: LAN9303: add I2C managed mode support
Juergen Beisert [Tue, 18 Apr 2017 08:48:26 +0000 (10:48 +0200)]
net: dsa: LAN9303: add I2C managed mode support

In this mode the switch device and the internal phys will be managed via
I2C interface. The MDIO interface is still supported, but for the
(emulated) CPU port only.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
CC: devicetree@vger.kernel.org
CC: robh+dt@kernel.org
CC: mark.rutland@arm.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: add new DSA switch driver for the SMSC-LAN9303
Juergen Beisert [Tue, 18 Apr 2017 08:48:25 +0000 (10:48 +0200)]
net: dsa: add new DSA switch driver for the SMSC-LAN9303

The SMSC/Microchip LAN9303 is an ethernet switch device with one CPU port
and two external ethernet ports with built-in phys.

This driver uses the DSA framework, but is currently only capable of
separating the two external ports. There is no offload support yet.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: add support for the SMSC-LAN9303 tagging format
Juergen Beisert [Tue, 18 Apr 2017 08:48:24 +0000 (10:48 +0200)]
net: dsa: add support for the SMSC-LAN9303 tagging format

To define the outgoing port and to discover the incoming port a regular
VLAN tag is used by the LAN9303. But its VID meaning is 'special'.

This tag handler/filter depends on some hardware features which must be
enabled in the device to provide and make use of this special VLAN tag
to control the destination and the source of an ethernet packet.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/mlx4: suppress 'may be used uninitialized' warning
Greg Thelen [Tue, 18 Apr 2017 06:21:35 +0000 (23:21 -0700)]
net/mlx4: suppress 'may be used uninitialized' warning

gcc 4.8.4 complains that mlx4_SW2HW_MPT_wrapper() uses an uninitialized
'mpt' variable:
  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_SW2HW_MPT_wrapper':
  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:2802:12: warning: 'mpt' may be used uninitialized in this function [-Wmaybe-uninitialized]
     mpt->mtt = mtt;

I think this warning is a false complaint.  mpt is only used when
mr_res_start_move_to() return zero, and in all such cases it initializes
mpt.  But apparently gcc cannot see that.

Initialize mpt to avoid the warning.

Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Thu, 20 Apr 2017 14:35:33 +0000 (10:35 -0400)]
Merge git://git./linux/kernel/git/davem/net

A function in kernel/bpf/syscall.c which got a bug fix in 'net'
was moved to kernel/bpf/verifier.c in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosh_eth: unmap DMA buffers when freeing rings
Sergei Shtylyov [Mon, 17 Apr 2017 12:55:22 +0000 (15:55 +0300)]
sh_eth: unmap DMA buffers when freeing rings

The DMA API debugging (when enabled) causes:

WARNING: CPU: 0 PID: 1445 at lib/dma-debug.c:519 add_dma_entry+0xe0/0x12c
DMA-API: exceeded 7 overlapping mappings of cacheline 0x01b2974d

to be  printed after repeated initialization of the Ether device, e.g.
suspend/resume or 'ifconfig' up/down. This is because DMA buffers mapped
using dma_map_single() in sh_eth_ring_format() and sh_eth_start_xmit() are
never unmapped. Resolve this problem by unmapping the buffers when freeing
the descriptor  rings;  in order  to do it right, we'd have to add an extra
parameter to sh_eth_txfree() (we rename this function to sh_eth_tx_free(),
while at it).

Based on the commit a47b70ea86bd ("ravb: unmap descriptors when freeing
rings").

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoixgbe: Fix output from ixgbe_dump
Alexander Duyck [Thu, 2 Mar 2017 23:01:36 +0000 (15:01 -0800)]
ixgbe: Fix output from ixgbe_dump

I just found that when we had changed the Rx path to check for length
instead of the DD bit we introduced an issue in ixgbe_dump since we were no
longer clearing the status bits.

To correct this I am updating ixgbe_dump to look for the length bits in the
descriptor since that is what we are using in the Rx path.

Fixes: c3630cc40b4f ("ixgbe: Use length to determine if descriptor is done")
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Tue, 18 Apr 2017 20:56:51 +0000 (13:56 -0700)]
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:
 "Two Sparc bug fixes from Daniel Jordan and Nitin Gupta"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix hugepage page table free
  sparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL

7 years agoixgbe: Add support for maximum headroom when using build_skb
Alexander Duyck [Thu, 2 Mar 2017 23:01:05 +0000 (15:01 -0800)]
ixgbe: Add support for maximum headroom when using build_skb

This patch increases the headroom allocated when using build_skb on a
system with 4K pages.  Specifically the breakdown of headroom versus cache
size is as follows:
    L1 Cache Size           Headroom
    64                      192
    64, NET_IP_ALIGN == 2   194
    128                     128
    128, NET_IP_ALIGN == 2  130
    256                     512
    256, NET_IP_ALIGN == 2  258

I stopped at supporting only a cache line size of 256 as that was the
largest cache size I could find supported in the kernel.

With this we are guaranteeing at least 128 bytes of headroom to spare in
the frame.  This should be enough for us to insert a couple of IPv6 headers
if needed which is likely enough room for anything XDP should need.

I'm leaving the padding for systems with pages larger than 4K unmodified
for now.  XDP currently isn't really setup to work on those types of
systems so we can cross that bridge when we get there.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: add check for VETO bit when configuring link for KR
Tony Nguyen [Wed, 1 Mar 2017 19:52:09 +0000 (11:52 -0800)]
ixgbe: add check for VETO bit when configuring link for KR

We did not have a check in place for MMNGC.MNG_VETO when setting up link
on X550EM_X KR devices which resulted in link loss for the BMC when
loading the driver.

This patch adds a check for ixgbe_check_reset_blocked() in setup_link()
since in that case there is no PHY reset function.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbevf: use new api ethtool_{get|set}_link_ksettings
Philippe Reynes [Tue, 7 Feb 2017 15:56:33 +0000 (16:56 +0100)]
ixgbevf: use new api ethtool_{get|set}_link_ksettings

The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Remove unused define
Don Skidmore [Thu, 2 Feb 2017 19:38:46 +0000 (14:38 -0500)]
ixgbe: Remove unused define

Remove the Marvell 1145 PHY define as we have never had a device that
supports it and have no plan to in the future.  The existence of this
define has caused confusing on whether or not this PHY was supported
by ixgbe.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: do not use adapter->num_vfs when setting VFs via module parameter
Emil Tantilov [Fri, 20 Jan 2017 22:11:56 +0000 (14:11 -0800)]
ixgbe: do not use adapter->num_vfs when setting VFs via module parameter

Avoid setting adapter->num_vfs early in the init code path when
using the max_vfs module parameter by passing it to ixgbe_enable_sriov()
as a function parameter.

This fixes an issue where if we failed to allocate vfinfo in
__ixgbe_enable_sriov() the driver will crash with NULL pointer in
ixgbe_disable_sriov() when attempting to free the vfinfo struct based
on adapter->num_vfs. Also it cleans up the assignment of adapter->num_vfs
since now it will only be set in __ixgbe_enable_sriov() and cleared in
ixgbe_disable_sriov().

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Tue, 18 Apr 2017 20:24:42 +0000 (13:24 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) BPF tail call handling bug fixes from Daniel Borkmann.

 2) Fix allowance of too many rx queues in sfc driver, from Bert
    Kenward.

 3) Non-loopback ipv6 packets claiming src of ::1 should be dropped,
    from Florian Westphal.

 4) Statistics requests on KSZ9031 can crash, fix from Grygorii
    Strashko.

 5) TX ring handling fixes in mediatek driver, from Sean Wang.

 6) ip_ra_control can deadlock, fix lock acquisition ordering to fix,
    from Cong WANG.

 7) Fix use after free in ip_recv_error(), from Willem de Buijn.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  bpf: fix checking xdp_adjust_head on tail calls
  bpf: fix cb access in socket filter programs on tail calls
  ipv6: drop non loopback packets claiming to originate from ::1
  net: ethernet: mediatek: fix inconsistency of port number carried in TXD
  net: ethernet: mediatek: fix inconsistency between TXD and the used buffer
  net: phy: micrel: fix crash when statistic requested for KSZ9031 phy
  net: vrf: Fix setting NLM_F_EXCL flag when adding l3mdev rule
  net: thunderx: Fix set_max_bgx_per_node for 81xx rgx
  net-timestamp: avoid use-after-free in ip_recv_error
  ipv4: fix a deadlock in ip_ra_control
  sfc: limit the number of receive queues

7 years agoixgbe: return early instead of wrap block in if statement
Emil Tantilov [Fri, 20 Jan 2017 22:11:50 +0000 (14:11 -0800)]
ixgbe: return early instead of wrap block in if statement

Since we exit at the end of the block, we can save a level of
indentation by performing an early return, and make the next several
sections of code more legible, with fewer 80 character line breaks.

Also moved allocating vfinfo at the beginning and the notification
for enabling SRIOV at the end of the function when we know that it
will succeed.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: move num_vfs_macvlans allocation into separate function
Emil Tantilov [Fri, 20 Jan 2017 22:11:45 +0000 (14:11 -0800)]
ixgbe: move num_vfs_macvlans allocation into separate function

Move the code allocating memory for list of MAC addresses that
the VFs can use for MACVLAN into its own function.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agosparc64: Fix hugepage page table free
Nitin Gupta [Mon, 17 Apr 2017 22:46:41 +0000 (15:46 -0700)]
sparc64: Fix hugepage page table free

Make sure the start adderess is aligned to PMD_SIZE
boundary when freeing page table backing a hugepage
region. The issue was causing segfaults when a region
backed by 64K pages was unmapped since such a region
is in general not PMD_SIZE aligned.

Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL
Daniel Jordan [Mon, 10 Apr 2017 15:50:52 +0000 (11:50 -0400)]
sparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL

CONFIG_PROVE_LOCKING_SMALL shrinks the memory usage of lockdep so the
kernel text, data, and bss fit in the required 32MB limit, but this
option is not set for every config that enables lockdep.

A 4.10 kernel fails to boot with the console output

    Kernel: Using 8 locked TLB entries for main kernel image.
    hypervisor_tlb_lock[2000000:0:8000000071c007c3:1]: errors with f
    Program terminated

with these config options

    CONFIG_LOCKDEP=y
    CONFIG_LOCK_STAT=y
    CONFIG_PROVE_LOCKING=n

To fix, rename CONFIG_PROVE_LOCKING_SMALL to CONFIG_LOCKDEP_SMALL, and
enable this option with CONFIG_LOCKDEP=y so we get the reduced memory
usage every time lockdep is turned on.

Tested that CONFIG_LOCKDEP_SMALL is set to 'y' if and only if
CONFIG_LOCKDEP is set to 'y'.  When other lockdep-related config options
that select CONFIG_LOCKDEP are enabled (e.g. CONFIG_LOCK_STAT or
CONFIG_PROVE_LOCKING), verified that CONFIG_LOCKDEP_SMALL is also
enabled.

Fixes: e6b5f1be7afe ("config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc")
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoixgbe: add default setup_link for x550em_a MAC type
Emil Tantilov [Thu, 19 Jan 2017 23:55:12 +0000 (15:55 -0800)]
ixgbe: add default setup_link for x550em_a MAC type

Add default setting for mac->ops.setup_link on x550em_a MAC types.
This fixes a link issue on KR parts.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: list X553 backplane speeds correctly
Don Skidmore [Sat, 31 Dec 2016 02:13:18 +0000 (21:13 -0500)]
ixgbe: list X553 backplane speeds correctly

We forgot to indicate some of the supported speed on the X553
backplane.  This patch attempts to correct for that.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Add X552 XFI backplane support
Don Skidmore [Sat, 31 Dec 2016 02:07:58 +0000 (21:07 -0500)]
ixgbe: Add X552 XFI backplane support

This patch add support for X552 XFI backplane interface.  The XFI
backplane requires a custom tuned link.  HW/FW owns the link config
for XF backplane and SW must not interfere with it.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Complete support for X553 sgmii
Don Skidmore [Sat, 31 Dec 2016 02:07:14 +0000 (21:07 -0500)]
ixgbe: Complete support for X553 sgmii

The initial patches supporting X553 sgmii forgot some details.  This patch
should cover those missing spots.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Remove driver config for KX4 PHY
Tony Nguyen [Tue, 1 Nov 2016 20:58:27 +0000 (13:58 -0700)]
ixgbe: Remove driver config for KX4 PHY

The KX4 PHY is configured by the NVM.  Currently, the driver is overwriting
the config; remove the code associated with KX4 configuration.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
7 years agonet: cx89x0: move attribute declaration before struct keyword
Stefan Agner [Mon, 17 Apr 2017 20:54:34 +0000 (13:54 -0700)]
net: cx89x0: move attribute declaration before struct keyword

The attribute declaration is typically before the definition. Move
the __maybe_unused attribute declaration before the struct keyword.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoixgbe: Remove pr_cont uses
Joe Perches [Tue, 3 Jan 2017 15:28:11 +0000 (07:28 -0800)]
ixgbe: Remove pr_cont uses

As pr_cont output can be interleaved by other processes,
using pr_cont should be avoided where possible.

Miscellanea:

- Use a temporary pointer to hold the next descriptions and
  consolidate the pr_cont uses
- Use the temporary buffer to hold the 8 u32 register values and
  emit those in a single go
- Coalesce formats and logging neatening around those changes
- Fix a defective output for the rx ring entry description when
  also emitting rx_buffer_info data

This reduces overall object size a tiny bit too.

$ size drivers/net/ethernet/intel/ixgbe/*.o*
   text    data     bss     dec     hex filename
  62167     728      12   62907    f5bb drivers/net/ethernet/intel/ixgbe/ixgbe_main.o.new
  62273     728      12   63013    f625 drivers/net/ethernet/intel/ixgbe/ixgbe_main.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agobe2net: VxLAN offload should be re-enabled when only 1 UDP port is left
Sriharsha Basavapatna [Mon, 17 Apr 2017 16:03:13 +0000 (21:33 +0530)]
be2net: VxLAN offload should be re-enabled when only 1 UDP port is left

We disable VxLAN offload when more than 1 UDP port is added to the driver,
since Skyhawk doesn't support offload with multiple ports. The existing
driver design expects the user to delete all port configurations and create
a configuration with a single UDP port for VxLAN offload to be re-enabled.
Remove this restriction by tracking the ports added and re-enabling offload
when ports get deleted and only 1 port is left.

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Reviewed-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodrivers: net: xgene-v2: Extend ethtool statistics
Iyappan Subramanian [Mon, 17 Apr 2017 23:47:55 +0000 (16:47 -0700)]
drivers: net: xgene-v2: Extend ethtool statistics

This patch adds extended statistics reporting to ethtool.

In summary, this patch,

   - adds ethtool.h with the statistics register definitions
   - adds 'struct xge_gstrings_extd_stats' to gather extended stats
   - modifies xge_get_strings(), get_sset_count() and
     get_ethtool_stats() accordingly
   - moves 'struct xge_gstrings_stats' to ethtool.h

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoixgbe: Avoid Tx hang by not allowing more than the number of VFs supported.
Usha Ketineni [Fri, 23 Dec 2016 18:08:14 +0000 (10:08 -0800)]
ixgbe: Avoid Tx hang by not allowing more than the number of VFs supported.

When DCB is enabled, add checks to ensure creation of number of VF's is
valid based on the traffic classes configured by the device.

Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com>
Tested-by: Ronald Bynoe <ronald.j.bynoe@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoMerge branch 'ftgmac100-batch5-features'
David S. Miller [Tue, 18 Apr 2017 18:11:10 +0000 (14:11 -0400)]
Merge branch 'ftgmac100-batch5-features'

Benjamin Herrenschmidt says:

====================
ftgmac100: Rework batch 5 - Features

This is the third spin of the fifth and last batch of
updates to the ftgmac100 driver.

This contains a few additional "features" such as:

 - Support for ethtool n-way reset
 - Multicast filtering & promisc support
 - Vlan offload
 - netpoll

And a couple of misc bits. This also adds the device-tree binding
documentation.

v2. - Addresses review comments and adds a new patch fixing a
      theorical ordering issue in my new NAPI poll implementation
    - Add a bug fix (Patch 8/9) for a potential ordering issue
      in the new NAPI poll code.

v3. - Rebase on net-next (fix conflict with an unrelated #include
      change series)
    - Update DT bindings better describing accepted phy-mode values
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Document device-tree binding
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:06 +0000 (08:37 +1000)]
ftgmac100: Document device-tree binding

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Fix potential ordering issue in NAPI poll
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:05 +0000 (08:37 +1000)]
ftgmac100: Fix potential ordering issue in NAPI poll

We need to ensure the loads from the descriptor are done after the
MMIO store clearing the interrupts has completed, otherwise we
might still miss work.

A read back from the MMIO register will "push" the posted store and
ioread32 has a barrier on weakly aordered architectures that will
order subsequent accesses.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Display the discovered PHY device info
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:04 +0000 (08:37 +1000)]
ftgmac100: Display the discovered PHY device info

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Allow configuration of phy interface via device-tree
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:03 +0000 (08:37 +1000)]
ftgmac100: Allow configuration of phy interface via device-tree

This uses the standard phy-mode property

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Add netpoll support
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:02 +0000 (08:37 +1000)]
ftgmac100: Add netpoll support

Just call the interrupt handler with interrupts locally disabled

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Add vlan HW offload
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:01 +0000 (08:37 +1000)]
ftgmac100: Add vlan HW offload

The chip supports HW vlan tag insertion and extraction. Add support
for it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Add ndo_set_rx_mode() and support for multicast & promisc
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:37:00 +0000 (08:37 +1000)]
ftgmac100: Add ndo_set_rx_mode() and support for multicast & promisc

This adds the ndo_set_rx_mode() callback to configure the
multicast filters, promisc and allmulti options.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Add pause frames configuration and support
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:36:59 +0000 (08:36 +1000)]
ftgmac100: Add pause frames configuration and support

Hopefully my understanding of how the hardware works is correct,
as the documentation isn't completely clear. So far I have seen
no obvious issue. Pause seem to also work with NC-SI.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoftgmac100: Add ethtool n-way reset call
Benjamin Herrenschmidt [Mon, 17 Apr 2017 22:36:58 +0000 (08:36 +1000)]
ftgmac100: Add ethtool n-way reset call

A non-wired up implementation accidentally made its way in
a previous patch (Make ring sizes configurable via ethtool).

This removes it and wires up the generic phy_ethtool_nway_reset
instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'marvell-static-code-analysis'
David S. Miller [Tue, 18 Apr 2017 17:55:11 +0000 (13:55 -0400)]
Merge branch 'marvell-static-code-analysis'

Markus Elfring says:

====================
Ethernet-Marvell: Fine-tuning for several function implementations

Several update suggestions were taken into account
from static source code analysis.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosky2: Use seq_puts() in sky2_debug_show()
Markus Elfring [Mon, 17 Apr 2017 14:15:12 +0000 (16:15 +0200)]
sky2: Use seq_puts() in sky2_debug_show()

A string which did not contain a data format specification should be put
into a sequence. Thus use the corresponding function "seq_puts".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoskge: Adjust a null pointer check in skge_down()
Markus Elfring [Mon, 17 Apr 2017 14:08:39 +0000 (16:08 +0200)]
skge: Adjust a null pointer check in skge_down()

The script "checkpatch.pl" pointed information out like the following.

Comparison to NULL could be written "!skge->mem".

Thus fix the affected source code place.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoskge: Use seq_puts() in skge_debug_show()
Markus Elfring [Mon, 17 Apr 2017 13:43:08 +0000 (15:43 +0200)]
skge: Use seq_puts() in skge_debug_show()

A string which did not contain a data format specification should be put
into a sequence. Thus use the corresponding function "seq_puts".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: pxa168_eth: Adjust four checks for null pointers
Markus Elfring [Mon, 17 Apr 2017 13:23:45 +0000 (15:23 +0200)]
net: pxa168_eth: Adjust four checks for null pointers

MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written …

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: pxa168_eth: Use kcalloc() in two functions
Markus Elfring [Mon, 17 Apr 2017 12:32:14 +0000 (14:32 +0200)]
net: pxa168_eth: Use kcalloc() in two functions

Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kcalloc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Adjust a null pointer check in mvpp2_egress_enable()
Markus Elfring [Mon, 17 Apr 2017 12:07:52 +0000 (14:07 +0200)]
net: mvpp2: Adjust a null pointer check in mvpp2_egress_enable()

The script "checkpatch.pl" pointed information out like the following.

Comparison to NULL could be written "txq->descs".

Thus fix the affected source code place.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Rename a jump label in mvpp2_prs_vlan_add()
Markus Elfring [Mon, 17 Apr 2017 11:50:35 +0000 (13:50 +0200)]
net: mvpp2: Rename a jump label in mvpp2_prs_vlan_add()

Adjust jump labels according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Rename a jump label in mvpp2_prs_double_vlan_add()
Markus Elfring [Mon, 17 Apr 2017 11:03:49 +0000 (13:03 +0200)]
net: mvpp2: Rename a jump label in mvpp2_prs_double_vlan_add()

Adjust jump labels according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Rename a jump label in mvpp2_txq_init()
Markus Elfring [Mon, 17 Apr 2017 10:58:33 +0000 (12:58 +0200)]
net: mvpp2: Rename a jump label in mvpp2_txq_init()

Adjust jump labels according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Rename a jump label in mvpp2_tx_frag_process()
Markus Elfring [Mon, 17 Apr 2017 09:36:34 +0000 (11:36 +0200)]
net: mvpp2: Rename a jump label in mvpp2_tx_frag_process()

Adjust jump labels according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Adjust three error messages
Markus Elfring [Mon, 17 Apr 2017 09:20:41 +0000 (11:20 +0200)]
net: mvpp2: Adjust three error messages

Use the word "failed" in the string for three function calls.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Rename a jump label in two functions
Markus Elfring [Mon, 17 Apr 2017 09:10:47 +0000 (11:10 +0200)]
net: mvpp2: Rename a jump label in two functions

Adjust jump labels according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Fix a jump label position in mvpp2_rx()
Markus Elfring [Mon, 17 Apr 2017 08:52:02 +0000 (10:52 +0200)]
net: mvpp2: Fix a jump label position in mvpp2_rx()

The script "checkpatch.pl" pointed out that labels should not be indented.
Thus delete two horizontal tabs before the jump label "err_drop_frame"
in the function "mvpp2_rx".

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve a size determination in two functions
Markus Elfring [Mon, 17 Apr 2017 08:40:32 +0000 (10:40 +0200)]
net: mvpp2: Improve a size determination in two functions

Replace the specification of two data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve 27 size determinations
Markus Elfring [Mon, 17 Apr 2017 08:30:29 +0000 (10:30 +0200)]
net: mvpp2: Improve 27 size determinations

Replace the specification of data structures by references to
a local variable as the parameter for the operator "sizeof"
to make the corresponding size determination a bit safer.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve another size determination in mvpp2_prs_default_init()
Markus Elfring [Mon, 17 Apr 2017 07:12:34 +0000 (09:12 +0200)]
net: mvpp2: Improve another size determination in mvpp2_prs_default_init()

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve another size determination in mvpp2_bm_init()
Markus Elfring [Mon, 17 Apr 2017 07:06:33 +0000 (09:06 +0200)]
net: mvpp2: Improve another size determination in mvpp2_bm_init()

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve another size determination in mvpp2_port_probe()
Markus Elfring [Mon, 17 Apr 2017 06:55:42 +0000 (08:55 +0200)]
net: mvpp2: Improve another size determination in mvpp2_port_probe()

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve another size determination in mvpp2_init()
Markus Elfring [Mon, 17 Apr 2017 06:48:23 +0000 (08:48 +0200)]
net: mvpp2: Improve another size determination in mvpp2_init()

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Improve two size determinations in mvpp2_probe()
Markus Elfring [Mon, 17 Apr 2017 06:38:32 +0000 (08:38 +0200)]
net: mvpp2: Improve two size determinations in mvpp2_probe()

Replace the specification of two data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvpp2: Use kmalloc_array() in mvpp2_txq_init()
Markus Elfring [Mon, 17 Apr 2017 06:09:07 +0000 (08:09 +0200)]
net: mvpp2: Use kmalloc_array() in mvpp2_txq_init()

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data structure by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: Adjust six checks for null pointers
Markus Elfring [Sun, 16 Apr 2017 20:45:33 +0000 (22:45 +0200)]
net: mvneta: Adjust six checks for null pointers

MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written …

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: Use kmalloc_array() in mvneta_txq_init()
Markus Elfring [Sun, 16 Apr 2017 20:11:22 +0000 (22:11 +0200)]
net: mvneta: Use kmalloc_array() in mvneta_txq_init()

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: Improve two size determinations in mvneta_init()
Markus Elfring [Sun, 16 Apr 2017 19:45:38 +0000 (21:45 +0200)]
net: mvneta: Improve two size determinations in mvneta_init()

Replace the specification of two data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: Use devm_kmalloc_array() in mvneta_init()
Markus Elfring [Sun, 16 Apr 2017 19:23:19 +0000 (21:23 +0200)]
net: mvneta: Use devm_kmalloc_array() in mvneta_init()

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "devm_kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agorhashtable: remove insecure_elasticity
Florian Westphal [Sun, 16 Apr 2017 00:55:09 +0000 (02:55 +0200)]
rhashtable: remove insecure_elasticity

commit 83e7e4ce9e93c3 ("mac80211: Use rhltable instead of rhashtable")
removed the last user that made use of 'insecure_elasticity' parameter,
i.e. the default of 16 is used everywhere.

Replace it with a constant.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'sctp-dup-stream-reconf-events'
David S. Miller [Tue, 18 Apr 2017 17:39:51 +0000 (13:39 -0400)]
Merge branch 'sctp-dup-stream-reconf-events'

Xin Long says:

====================
sctp: add proper process for duplicated stream reconf requests

Now sctp stream reconf will process a request again even if it's seqno
is less than asoc->strreset_inseq. It may cause a replay attack.

This patchset is to avoid it by add proper process for all duplicated
stream reconf requests.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: process duplicated strreset asoc request correctly
Xin Long [Sat, 15 Apr 2017 14:00:29 +0000 (22:00 +0800)]
sctp: process duplicated strreset asoc request correctly

This patch is to fix the replay attack issue for strreset asoc requests.

When a duplicated strreset asoc request is received, reply it with bad
seqno if it's seqno < asoc->strreset_inseq - 2, and reply it with the
result saved in asoc if it's seqno >= asoc->strreset_inseq - 2.

But note that if the result saved in asoc is performed, the sender's next
tsn and receiver's next tsn for the response chunk should be set. It's
safe to get them from asoc. Because if it's changed, which means the peer
has received the response already, the new response with wrong tsn won't
be accepted by peer.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: process duplicated strreset in and addstrm in requests correctly
Xin Long [Sat, 15 Apr 2017 14:00:28 +0000 (22:00 +0800)]
sctp: process duplicated strreset in and addstrm in requests correctly

This patch is to fix the replay attack issue for strreset and addstrm in
requests.

When a duplicated strreset in or addstrm in request is received, reply it
with bad seqno if it's seqno < asoc->strreset_inseq - 2, and reply it with
the result saved in asoc if it's seqno >= asoc->strreset_inseq - 2.

For strreset in or addstrm in request, if the receiver side processes it
successfully, a strreset out or addstrm out request(as a response for that
request) will be sent back to peer. reconf_time will retransmit the out
request even if it's lost.

So when receiving a duplicated strreset in or addstrm in request and it's
result was performed, it shouldn't reply this request, but drop it instead.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosctp: process duplicated strreset out and addstrm out requests correctly
Xin Long [Sat, 15 Apr 2017 14:00:27 +0000 (22:00 +0800)]
sctp: process duplicated strreset out and addstrm out requests correctly

Now sctp stream reconf will process a request again even if it's seqno is
less than asoc->strreset_inseq.

If one request has been done successfully and some data chunks have been
accepted and then a duplicated strreset out request comes, the streamin's
ssn will be cleared. It will cause that stream will never receive chunks
any more because of unsynchronized ssn. It allows a replay attack.

A similar issue also exists when processing addstrm out requests. It will
cause more extra streams being added.

This patch is to fix it by saving the last 2 results into asoc. When a
duplicated strreset out or addstrm out request is received, reply it with
bad seqno if it's seqno < asoc->strreset_inseq - 2, and reply it with the
result saved in asoc if it's seqno >= asoc->strreset_inseq - 2.

Note that it saves last 2 results instead of only last 1 result, because
two requests can be sent together in one chunk.

And note that when receiving a duplicated request, the receiver side will
still reply it even if the peer has received the response. It's safe, As
the response will be dropped by the peer.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'trace-v4.11-rc5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/rosted...
Linus Torvalds [Tue, 18 Apr 2017 17:19:47 +0000 (10:19 -0700)]
Merge tag 'trace-v4.11-rc5-4' of git://git./linux/kernel/git/rostedt/linux-trace

Pull ftrace testcase update from Steven Rostedt:
 "While testing my development branch, without the fix for the pid use
  after free bug, the selftest that Namhyung added triggers it. I
  figured it would be good to add the test for the bug after the fix,
  such that it does not exist without the fix.

  I added another patch that lets the test only test part of the pid
  filtering, and ignores the function-fork (filtering on children as
  well) if the function-fork feature does not exist. This feature is
  added by Namhyung just before he added this test. But since the test
  tests both with and without the feature, it would be good to let it
  not fail if the feature does not exist"

* tag 'trace-v4.11-rc5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  selftests: ftrace: Add check for function-fork before running pid filter test
  selftests: ftrace: Add a testcase for function PID filter

7 years agoselftests: ftrace: Add check for function-fork before running pid filter test
Steven Rostedt (VMware) [Tue, 18 Apr 2017 16:32:21 +0000 (12:32 -0400)]
selftests: ftrace: Add check for function-fork before running pid filter test

Have the func-filter-pid test check for the function-fork option before
testing it. It can still test the pid filtering, but will stop before
testing the function-fork option for children inheriting the pids.
This allows the test to be added before the function-fork feature, but after
a bug fix that triggers one of the bugs the test can cause.

Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
7 years agoMerge tag 'trace-v4.11-rc5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rosted...
Linus Torvalds [Tue, 18 Apr 2017 16:31:51 +0000 (09:31 -0700)]
Merge tag 'trace-v4.11-rc5-3' of git://git./linux/kernel/git/rostedt/linux-trace

Pull ftrace fix from Steven Rostedt:
 "Namhyung Kim discovered a use after free bug. It has to do with adding
  a pid filter to function tracing in an instance, and then freeing the
  instance"

* tag 'trace-v4.11-rc5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace: Fix function pid filter on instances

7 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Tue, 18 Apr 2017 16:03:50 +0000 (09:03 -0700)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes the following problems:

   - regression in new XTS/LRW code when used with async crypto

   - long-standing bug in ahash API when used with certain algos

   - bogus memory dereference in async algif_aead with certain algos"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: algif_aead - Fix bogus request dereference in completion function
  crypto: ahash - Fix EINPROGRESS notification callback
  crypto: lrw - Fix use-after-free on EINPROGRESS
  crypto: xts - Fix use-after-free on EINPROGRESS

7 years agoselftests: ftrace: Add a testcase for function PID filter
Namhyung Kim [Mon, 17 Apr 2017 02:44:30 +0000 (11:44 +0900)]
selftests: ftrace: Add a testcase for function PID filter

Like event pid filtering test, add function pid filtering test with the
new "function-fork" option.  It also tests it on an instance directory
so that it can verify the bug related pid filtering on instances.

Link: http://lkml.kernel.org/r/20170417024430.21194-5-namhyung@kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
7 years agonl80211: Fix enum type of variable in nl80211_put_sta_rate()
Matthias Kaehlcke [Mon, 17 Apr 2017 22:59:52 +0000 (15:59 -0700)]
nl80211: Fix enum type of variable in nl80211_put_sta_rate()

rate_flg is of type 'enum nl80211_attrs', however it is assigned with
'enum nl80211_rate_info' values. Change the type of rate_flg accordingly.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 years agomac80211: ibss: Fix channel type enum in ieee80211_sta_join_ibss()
Matthias Kaehlcke [Mon, 17 Apr 2017 20:59:53 +0000 (13:59 -0700)]
mac80211: ibss: Fix channel type enum in ieee80211_sta_join_ibss()

cfg80211_chandef_create() expects an 'enum nl80211_channel_type' as
channel type however in ieee80211_sta_join_ibss()
NL80211_CHAN_WIDTH_20_NOHT is passed in two occasions, which is of
the enum type 'nl80211_chan_width'. Change the value to NL80211_CHAN_NO_HT
(20 MHz, non-HT channel) of the channel type enum.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 years agocfg80211: Fix array-bounds warning in fragment copy
Matthias Kaehlcke [Thu, 13 Apr 2017 17:05:04 +0000 (10:05 -0700)]
cfg80211: Fix array-bounds warning in fragment copy

__ieee80211_amsdu_copy_frag intentionally initializes a pointer to
array[-1] to increment it later to valid values. clang rightfully
generates an array-bounds warning on the initialization statement.

Initialize the pointer to array[0] and change the algorithm from
increment before to increment after consume.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>