Markus Elfring [Sat, 10 Sep 2016 06:30:09 +0000 (08:30 +0200)]
ATM-nicstar: Improve another size determination in ns_init_card()
Replace the specification of a data structure by a reference for a field
in a local variable 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>
Markus Elfring [Sat, 10 Sep 2016 06:18:10 +0000 (08:18 +0200)]
ATM-nicstar: Improve another size determination in get_scq()
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>
Markus Elfring [Sat, 10 Sep 2016 06:02:06 +0000 (08:02 +0200)]
ATM-nicstar: Use kmalloc_array() in get_scq()
* 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 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>
Eric Dumazet [Fri, 9 Sep 2016 21:22:45 +0000 (14:22 -0700)]
tcp: better use ooo_last_skb in tcp_data_queue_ofo()
Willem noticed that we could avoid an rbtree lookup if the
the attempt to coalesce incoming skb to the last skb failed
for some reason.
Since most ooo additions are at the tail, this is definitely
worth adding a test and fast path.
Suggested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yaogong Wang <wygivan@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thadeu Lima de Souza Cascardo [Fri, 9 Sep 2016 20:42:30 +0000 (17:42 -0300)]
openvswitch: use alias for genetlink family names
When userspace tries to create datapaths and the module is not loaded,
it will simply fail. With this patch, the module will be automatically
loaded.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Hemminger [Fri, 9 Sep 2016 19:45:24 +0000 (12:45 -0700)]
Revert "hv_netvsc: make inline functions static"
These functions are used by other code misc-next tree.
This reverts commit
30d1de08c87ddde6f73936c3350e7e153988fe02.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Sep 2016 04:21:51 +0000 (21:21 -0700)]
Merge branch 'mlx5-next'
Saeed Mahameed says:
====================
Mellanox 100G mlx5 seamless error recovery
This series from Mohamad improves the driver load/unload flows
to seamlessly handle pci errors and device internal errors recovery
reset flows.
Current pci and internal error handling is too heavy and is done
with a full restart of the driver by unregistering mlx5 interfaces
(mlx5e netedevs and mlx5_ib) which will cause losing all the current
interfaces and mlx5 core configurations.
To improve this, we add new callback functions of mlx5 interface
object (attach/detach) to be called upon reset flows when errors are
detected rather than calling register and unregister interfaces.
On their side, interfaces such as (mlx5e and mlx5_ib) can choose to implement
those callback, if not, the old heavy reset will be called for that interface.
For non-interface mlx5 modules such as sriov and eswitch, we refactored
and reorganized the code in a way that the software state objects are created
only once on driver load. Those software state objects are kept upon reset recovery
flows and only freed once on driver unload. On seamless soft reset flows, only
hardware resources are released on stop and re-allocated on start according to the
current soft state.
In this series only mlx5e interface implements attach/detach callbacks
so that the netdevice will be kept alive on reset. On detach only hardware resources
are released and the netdevice will be marked as detached to the stack. Once
attached again it will re-allocate the hardware resources according to the current
netdevice state, and all the configurations and the software state will be kept or restored
after recovery.
Note: I will be out of office all next week, in case of any updates
or V2 is required, Tariq will post the new series, I hope it is ok.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:27 +0000 (17:35 +0300)]
net/mlx5: Organize device list API in one place
Hide the exposed (external) mlx5_dev_list and mlx5_intf_mutex and expose
an organized modular API to manage and manipulate mlx5 devices list.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:26 +0000 (17:35 +0300)]
net/mlx5e: Restore vlan filter after seamless reset
When detaching the mlx5e interface clear all the vlans rules from the
vlan flow table.
When attaching it back restore all the active vlans rules to the HW.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:25 +0000 (17:35 +0300)]
net/mlx5e: Implement mlx5e interface attach/detach callbacks
Needed to support seamless and lightweight PCI/Internal error recovery.
Implement the attach/detach interface callbacks.
In attach callback we only allocate HW resources.
In detach callback we only deallocate HW resources.
All SW/kernel objects initialzing/destroying is kept in add/remove
callbacks.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:24 +0000 (17:35 +0300)]
net/mlx5: Implement vports admin state backup/restore
Save the user configuration in the vport sturct.
Restore saved old configuration upon vport enable.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:23 +0000 (17:35 +0300)]
net/mlx5: Align sriov/eswitch modules with the new load/unload flow.
Init/cleanup sriov/eswitch in the core software context init/cleanup
flows.
Attach/detach sriov/eswitch in the core load/unload flows.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:22 +0000 (17:35 +0300)]
net/mlx5: Implement eswitch attach/detach flows
Needed for lightweight and modular internal/pci error handling.
Implement eswitch attach function which allocates/starts hw related
resources.
Implement eswitch detach function which releases/stops hw related
resources.
Init/cleanup function only handle eswitch software context allocation
and destruction.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:21 +0000 (17:35 +0300)]
net/mlx5: Implement SRIOV attach/detach flows
Needed for lightweight and modular internal/pci error handling.
Implement sriov attach function which enables pre-saved number of vfs on
the device side.
Implement sriov detach function which disable the current vfs on the
device side.
Init/cleanup function only handles sriov software context allocation and
destruction.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:20 +0000 (17:35 +0300)]
net/mlx5: Split the load/unload flow into hardware and software flows
Gather all software context creating/destroying in one function and call
it once in the first load and in the last unload.
load/unload functions will now receive indication if we need to
create/destroy the software contexts.
In internal/pci error do the unload/load flows without releasing the
software objects.
In this way we perserve the sw core state and it help us restoring old
driver state after PCI error/shutdown.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:19 +0000 (17:35 +0300)]
net/mlx5: Introduce attach/detach to interface API
Add attach/detach callbacks to interface API.
This is crucial for implementing seamless reset flow which releases the
hardware and it's resources upon detach while keeping software
structures and state (e.g netdev) then reset and reallocate the hardware
needed resources upon attach.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:18 +0000 (17:35 +0300)]
net/mlx5: SRIOV core code refactoring
Simplify the code and makes it look modular and symmetric.
Split sriov enable/disable to two levels: device level and pci level.
When user enable/disable sriov (via sriov_configure driver callback) we
will enable/disable both device and pci sriov.
When driver load/unload we will enable/disable (on demand) only device
sriov while keeping the PCI sriov enabled for next driver load.
On internal/pci error, VFs will be kept enabled on PCI and the reset
is done only in device level.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohamad Haj Yahia [Fri, 9 Sep 2016 14:35:17 +0000 (17:35 +0300)]
net/mlx5: Skip waiting for vf pages in internal error
In case of device in internal error state there is no need to wait for
vf pages since they will be reclaimed manually later in the unload flow.
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Sep 2016 04:19:12 +0000 (21:19 -0700)]
Merge branch 'net-is_enabled'
Javier Martinez Canillas says:
====================
net: use IS_ENABLED() instead of checking for built-in or module
This trivial series replace the open coding to check for a Kconfig symbol
being built-in or module, with IS_ENABLED() macro that does exactly that.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:20 +0000 (08:43 -0400)]
xfrm: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:19 +0000 (08:43 -0400)]
sctp: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:18 +0000 (08:43 -0400)]
net: sched: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:17 +0000 (08:43 -0400)]
l2tp: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:16 +0000 (08:43 -0400)]
ipv4: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:15 +0000 (08:43 -0400)]
net: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:14 +0000 (08:43 -0400)]
lec: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Javier Martinez Canillas [Fri, 9 Sep 2016 12:43:13 +0000 (08:43 -0400)]
appletalk: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Sep 2016 04:17:14 +0000 (21:17 -0700)]
Merge branch 'fs_enet-opt'
Christophe Leroy says:
====================
Optimisation of fs_enet ethernet driver
This set optimises the freescale fs_enet ethernet driver:
1/ Merge of RX and TX NAPI functions in order to limit the amount of
interrupts
2/ Do not unmap DMA when packets len is below copybreak, otherwise there
is no benefit in copying the skb instead of allocating a new one
3/ Make copybreak value configurable as the optimised value is not the
same on all targets
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Christophe Leroy [Fri, 9 Sep 2016 12:26:25 +0000 (14:26 +0200)]
net: fs_enet: make rx_copybreak value configurable
Measurement shows that on a MPC8xx running at 132MHz, the optimal
limit is 112:
* 114 bytes packets are processed in 147 TB ticks with higher copybreak
* 114 bytes packets are processed in 148 TB ticks with lower copybreak
* 128 bytes packets are processed in 154 TB ticks with higher copybreak
* 128 bytes packets are processed in 148 TB ticks with lower copybreak
* 238 bytes packets are processed in 172 TB ticks with higher copybreak
* 238 bytes packets are processed in 148 TB ticks with lower copybreak
However it might be different on other processors
and/or frequencies. So it is useful to make it configurable.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christophe Leroy [Fri, 9 Sep 2016 12:26:23 +0000 (14:26 +0200)]
net: fs_enet: don't unmap DMA when packet len is below copybreak
When the length of the packet is below the defined copybreak limit,
the received packet is copied into a newly allocated skb in order
to reuse the skb. This is only interesting if it allow us to avoid
a new DMA mapping. We shall therefore not DMA unmap and remap the
skb->data. Instead, we invalidate the cache
with dma_sync_single_for_cpu() once the received data has been
copied into the new skb.
The following measures have been obtained on a mpc885 running at 132Mhz.
Measurement is done using the timebase with packets sent to the target
with 'ping -s 1' (packet len is 60):
* Without this patch: 182 TB ticks
* With this patch: 143 TB ticks
As a comparison, if we set the copybreak limit to 0, then we get
148 TB ticks. It means that without this patch, duration is even
worse when copying received data to a new skb instead of
allocating a new skb for next packet to be received
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christophe Leroy [Fri, 9 Sep 2016 12:26:21 +0000 (14:26 +0200)]
net: fs_enet: merge NAPI RX and NAPI TX
Initially, a NAPI TX routine has been implemented separately from
NAPI RX, as done on the freescale/gianfar driver.
By merging NAPI RX and NAPI TX, we reduce the amount of TX completion
interrupts.
Handling of the budget in association with TX interrupts is based on
indications provided at https://wiki.linuxfoundation.org/networking/napi
We never proceed more than the complete TX ring on a single run.
At the same time, we fix an issue in the handling of fep->tx_free:
It is only when fep->tx_free goes up to MAX_SKB_FRAGS that
we need to wake up the queue. There is no need to call
netif_wake_queue() at every packet successfully transmitted.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Brandt [Wed, 7 Sep 2016 18:57:09 +0000 (14:57 -0400)]
net: ethernet: renesas: sh_eth: add POST registers for rz
Due to a mistake in the hardware manual, the FWSLC and POST1-4 registers
were not documented and left out of the driver for RZ/A making the CAM
feature non-operational.
Additionally, when the offset values for POST1-4 are left blank, the driver
attempts to set them using an offset of 0xFFFF which can cause a memory
corruption or panic.
This patch fixes the panic and properly enables CAM.
Reported-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Sep 2016 03:53:56 +0000 (20:53 -0700)]
Merge branch 'act_tunnel_key'
Hadar Hen Zion says:
====================
net/sched: ip tunnel metadata set/release/classify by using TC
This patchset introduces ip tunnel manipulation support using the TC subsystem.
In the decap flow, it enables the user to redirect packets from a shared tunnel
device and classify by outer and inner headers. The outer headers are extracted
from the metadata and used by the flower filter. A new action act_tunnel_key,
releases the metadata.
In the encap flow, act_tunnel_key creates a metadata object to be used by the
shared tunnel device. The actual redirection to the tunnel device is done using
act_mirred.
For example:
$ tc qdisc add dev vnet0 ingress
$ tc filter add dev vnet0 protocol ip parent ffff: \
flower \
ip_proto 1 \
action tunnel_key set \
src_ip 11.11.0.1 \
dst_ip 11.11.0.2 \
id 11 \
action mirred egress redirect dev vxlan0
$ tc qdisc add dev vxlan0 ingress
$ tc filter add dev vxlan0 protocol ip parent ffff: \
flower \
enc_src_ip 11.11.0.2 \
enc_dst_ip 11.11.0.1 \
enc_key_id 11 \
action tunnel_key release \
action mirred egress redirect dev vnet0
Amir & Hadar
Changes from V6:
- Add kfree_rcu to tunnel_key_release function
- Use reverse Christmas tree order in tunnel_key_init function
Changes from V5:
- Add __rcu notation to struct tcf_tunnel_key_params in struct tcf_tunnel_key
- Fix indentation in include/net/dst_metadata.h
- Fix syntx error in commit message
Changes from V4:
- Fix tunnel_key_init function error flow.
- Add 'action' variable to struct tcf_tunnel_key_params and use it instead of
tcf_action variable which is not protected by rcu lock.
Changes from V3:
- Use percpu stats
- No spinlock on datapatch - protecting parameters with rcu
- Fix buggy handling of set/release dst
- Use nla_get_in_addr and nla_put_in_addr
- Fix change logs
- Pass in6_addr by pointer
- Rename utility functions to start with double underscore
Changes from V2:
- Use union in struct fl_flow_key for enc_ipv6 and enc_ipv4.
- Rename functions _ip_tun_rx_dst and _ipv6_tun_rx_dst to _ip_tun_set_dst and
_ipv6_tun_set_dst accordingly.
- Remove local parameter 'encapdecap' from tunnel_key_init function.
- Don't copy in6_addr values in tunnel_key_dump_addresses function, use pointers.
Changes from V1:
- More cleanups to key32_to_tunnel_id() and tunnel_id_to_key32()
- IPv6 Support added
- Set TUNNEL_KEY flag to make GRE work
- Handle zero tunnel id properly in act_tunnel_key
- Don't leave junk in decap action
- Fix bug in act_tunnel_key initialization where (exists & ocr) is true
- Remove BUG() from code
- Rename action to tunnel_key
- Improve grep-ability of code
- Reuse code from ip_tun_rx_dst() and ipv6_tun_rx_dst()
Changes from RFC:
- Add a new action instead of making mirred too complex
- No need to specify UDP port in action - it is already in the tunnel device
configuration
- Added a decap operation to drop tunnel metadata
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Amir Vadai [Thu, 8 Sep 2016 13:23:48 +0000 (16:23 +0300)]
net/sched: Introduce act_tunnel_key
This action could be used before redirecting packets to a shared tunnel
device, or when redirecting packets arriving from a such a device.
The action will release the metadata created by the tunnel device
(decap), or set the metadata with the specified values for encap
operation.
For example, the following flower filter will forward all ICMP packets
destined to 11.11.11.2 through the shared vxlan device 'vxlan0'. Before
redirecting, a metadata for the vxlan tunnel is created using the
tunnel_key action and it's arguments:
$ tc filter add dev net0 protocol ip parent ffff: \
flower \
ip_proto 1 \
dst_ip 11.11.11.2 \
action tunnel_key set \
src_ip 11.11.0.1 \
dst_ip 11.11.0.2 \
id 11 \
action mirred egress redirect dev vxlan0
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amir Vadai [Thu, 8 Sep 2016 13:23:47 +0000 (16:23 +0300)]
net/sched: cls_flower: Classify packet in ip tunnels
Introduce classifying by metadata extracted by the tunnel device.
Outer header fields - source/dest ip and tunnel id, are extracted from
the metadata when classifying.
For example, the following will add a filter on the ingress Qdisc of shared
vxlan device named 'vxlan0'. To forward packets with outer src ip
11.11.0.2, dst ip 11.11.0.1 and tunnel id 11. The packets will be
forwarded to tap device 'vnet0' (after metadata is released):
$ tc filter add dev vxlan0 protocol ip parent ffff: \
flower \
enc_src_ip 11.11.0.2 \
enc_dst_ip 11.11.0.1 \
enc_key_id 11 \
dst_ip 11.11.11.1 \
action tunnel_key release \
action mirred egress redirect dev vnet0
The action tunnel_key, will be introduced in the next patch in this
series.
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amir Vadai [Thu, 8 Sep 2016 13:23:46 +0000 (16:23 +0300)]
net/dst: Utility functions to build dst_metadata without supplying an skb
Extract __ip_tun_set_dst() and __ipv6_tun_set_dst() out of
ip_tun_rx_dst() and ipv6_tun_rx_dst(), to be used without supplying an
skb.
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amir Vadai [Thu, 8 Sep 2016 13:23:45 +0000 (16:23 +0300)]
net/ip_tunnels: Introduce tunnel_id_to_key32() and key32_to_tunnel_id()
Add utility functions to convert a 32 bits key into a 64 bits tunnel and
vice versa.
These functions will be used instead of cloning code in GRE and VXLAN,
and in tc act_iptunnel which will be introduced in a following patch in
this patchset.
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 10 Sep 2016 16:58:52 +0000 (09:58 -0700)]
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"nvdimm fixes for v4.8, two of them are tagged for -stable:
- Fix devm_memremap_pages() to use track_pfn_insert(). Otherwise,
DAX pmd mappings end up with an uncached pgprot, and unusable
performance for the device-dax interface. The device-dax interface
appeared in 4.7 so this is tagged for -stable.
- Fix a couple VM_BUG_ON() checks in the show_smaps() path to
understand DAX pmd entries. This fix is tagged for -stable.
- Fix a mis-merge of the nfit machine-check handler to flip the
polarity of an if() to match the final version of the patch that
Vishal sent for 4.8-rc1. Without this the nfit machine check
handler never detects / inserts new 'badblocks' entries which
applications use to identify lost portions of files.
- For test purposes, fix the nvdimm_clear_poison() path to operate on
legacy / simulated nvdimm memory ranges. Without this fix a test
can set badblocks, but never clear them on these ranges.
- Fix the range checking done by dax_dev_pmd_fault(). This is not
tagged for -stable since this problem is mitigated by specifying
aligned resources at device-dax setup time.
These patches have appeared in a next release over the past week. The
recent rebase you can see in the timestamps was to drop an invalid fix
as identified by the updated device-dax unit tests [1]. The -mm
touches have an ack from Andrew"
[1]: "[ndctl PATCH 0/3] device-dax test for recent kernel bugs"
https://lists.01.org/pipermail/linux-nvdimm/2016-September/006855.html
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm: allow legacy (e820) pmem region to clear bad blocks
nfit, mce: Fix SPA matching logic in MCE handler
mm: fix cache mode of dax pmd mappings
mm: fix show_smap() for zone_device-pmd ranges
dax: fix mapping size check
Linus Torvalds [Sat, 10 Sep 2016 16:43:10 +0000 (09:43 -0700)]
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Mostly driver bugfixes, but also a few cleanups which are nice to have
out of the way"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: rk3x: Restore clock settings at resume time
i2c: Spelling s/acknowedge/acknowledge/
i2c: designware: save the preset value of DW_IC_SDA_HOLD
Documentation: i2c: slave-interface: add note for driver development
i2c: mux: demux-pinctrl: run properly with multiple instances
i2c: bcm-kona: fix inconsistent indenting
i2c: rcar: use proper device with dma_mapping_error
i2c: sh_mobile: use proper device with dma_mapping_error
i2c: mux: demux-pinctrl: invalidate properly when switching fails
Linus Torvalds [Sat, 10 Sep 2016 16:18:33 +0000 (09:18 -0700)]
Merge tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull fscrypto fixes fromTed Ts'o:
"Fix some brown-paper-bag bugs for fscrypto, including one one which
allows a malicious user to set an encryption policy on an empty
directory which they do not own"
* tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
fscrypto: require write access to mount to set encryption policy
fscrypto: only allow setting encryption policy on directories
fscrypto: add authorization check for setting encryption policy
Eric Biggers [Thu, 8 Sep 2016 21:20:38 +0000 (14:20 -0700)]
fscrypto: require write access to mount to set encryption policy
Since setting an encryption policy requires writing metadata to the
filesystem, it should be guarded by mnt_want_write/mnt_drop_write.
Otherwise, a user could cause a write to a frozen or readonly
filesystem. This was handled correctly by f2fs but not by ext4. Make
fscrypt_process_policy() handle it rather than relying on the filesystem
to get it right.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: stable@vger.kernel.org # 4.1+; check fs/{ext4,f2fs}
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Markus Elfring [Fri, 9 Sep 2016 18:40:16 +0000 (20:40 +0200)]
ATM-iphase: Use kmalloc_array() in tx_init()
* Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
* Replace the specification of data types by pointer dereferences
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>
David S. Miller [Sat, 10 Sep 2016 03:51:22 +0000 (20:51 -0700)]
Merge branch 'alx-msix'
Tobias Regnery says:
====================
alx: add msi-x support
This patchset adds msi-x support to the alx driver. It is a preparatory
series for multi queue support, which I am currently working on. As there
is no advantage over msi interrupts without multi queue support, msi-x
interrupts are disabled by default. In order to test for regressions, a
new module parameter is added to enable msi-x interrupts.
Based on information of the downstream driver at github.com/qca/alx
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tobias Regnery [Fri, 9 Sep 2016 10:19:55 +0000 (12:19 +0200)]
alx: add module parameter to enable msi-x support
msi-x support is default disabled in the alx driver. In order to test msi-x
interrupts for regressions add a module parameter to the driver.
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tobias Regnery [Fri, 9 Sep 2016 10:19:54 +0000 (12:19 +0200)]
alx: add msi-x support
Add msi-x support to the alx driver. This is in preparation for multi queue
support.
msi-x interrupts are disabled by default because without multi queue support
there is no advantage over msi interrupts. The performance numbers observed
with iperf stay the same.
Based on information of the downstream driver at github.com/qca/alx
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tobias Regnery [Fri, 9 Sep 2016 10:19:53 +0000 (12:19 +0200)]
alx: factor out part of the interrupt handler
Factor out the handling of misc interrupts into a new function.
This function can be reused later for msi-x interrupts.
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tobias Regnery [Fri, 9 Sep 2016 10:19:52 +0000 (12:19 +0200)]
alx: refactor msi enablement and disablement
Introduce a new flag field for the advanced interrupt capatibilities and add
new functions to enable and disable msi interrupts. These functions will be
extended later to cover msi-x interrupts.
We enable msi interrupts earlier in alx_init_intr because with msi-x and multi
queue support the number of queues must be set before we allocate resources for
the rx and tx paths.
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Biggers [Thu, 8 Sep 2016 18:36:39 +0000 (11:36 -0700)]
fscrypto: only allow setting encryption policy on directories
The FS_IOC_SET_ENCRYPTION_POLICY ioctl allowed setting an encryption
policy on nondirectory files. This was unintentional, and in the case
of nonempty regular files did not behave as expected because existing
data was not actually encrypted by the ioctl.
In the case of ext4, the user could also trigger filesystem errors in
->empty_dir(), e.g. due to mismatched "directory" checksums when the
kernel incorrectly tried to interpret a regular file as a directory.
This bug affected ext4 with kernels v4.8-rc1 or later and f2fs with
kernels v4.6 and later. It appears that older kernels only permitted
directories and that the check was accidentally lost during the
refactoring to share the file encryption code between ext4 and f2fs.
This patch restores the !S_ISDIR() check that was present in older
kernels.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Eric Biggers [Thu, 8 Sep 2016 17:57:08 +0000 (10:57 -0700)]
fscrypto: add authorization check for setting encryption policy
On an ext4 or f2fs filesystem with file encryption supported, a user
could set an encryption policy on any empty directory(*) to which they
had readonly access. This is obviously problematic, since such a
directory might be owned by another user and the new encryption policy
would prevent that other user from creating files in their own directory
(for example).
Fix this by requiring inode_owner_or_capable() permission to set an
encryption policy. This means that either the caller must own the file,
or the caller must have the capability CAP_FOWNER.
(*) Or also on any regular file, for f2fs v4.6 and later and ext4
v4.8-rc1 and later; a separate bug fix is coming for that.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: stable@vger.kernel.org # 4.1+; check fs/{ext4,f2fs}
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Baoyou Xie [Fri, 9 Sep 2016 01:21:15 +0000 (09:21 +0800)]
qed: mark symbols static where possible
We get a few warnings when building kernel with W=1:
drivers/net/ethernet/qlogic/qed/qed_l2.c:112:5: warning: no previous prototype for 'qed_sp_vport_start' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:110:6: warning: no previous prototype for 'qed_iov_is_valid_vfid' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:188:5: warning: no previous prototype for 'qed_iov_post_vf_bulletin' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:578:6: warning: no previous prototype for 'qed_iov_set_vfs_to_disable' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:1135:28: warning: no previous prototype for 'qed_iov_get_public_vf_info' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:1148:6: warning: no previous prototype for 'qed_iov_clean_vf' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:2444:5: warning: no previous prototype for 'qed_iov_chk_ucast' [-Wmissing-prototypes]
drivers/net/ethernet/qlogic/qed/qed_sriov.c:2762:5: warning: no previous prototype for 'qed_iov_vf_flr_cleanup' [-Wmissing-prototypes]
....
In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 10 Sep 2016 02:36:04 +0000 (19:36 -0700)]
Merge branch 'bpf-helper-cleanups'
Daniel Borkmann says:
====================
Some BPF helper cleanups
This series contains a couple of misc cleanups and improvements
for BPF helpers. For details please see individual patches. We
let this also sit for a few days with Fengguang's kbuild test
robot, and there were no issues seen (besides one false positive,
see last one for details).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 9 Sep 2016 00:45:31 +0000 (02:45 +0200)]
bpf: add BPF_CALL_x macros for declaring helpers
This work adds BPF_CALL_<n>() macros and converts all the eBPF helper functions
to use them, in a similar fashion like we do with SYSCALL_DEFINE<n>() macros
that are used today. Motivation for this is to hide all the register handling
and all necessary casts from the user, so that it is done automatically in the
background when adding a BPF_CALL_<n>() call.
This makes current helpers easier to review, eases to write future helpers,
avoids getting the casting mess wrong, and allows for extending all helpers at
once (f.e. build time checks, etc). It also helps detecting more easily in
code reviews that unused registers are not instrumented in the code by accident,
breaking compatibility with existing programs.
BPF_CALL_<n>() internals are quite similar to SYSCALL_DEFINE<n>() ones with some
fundamental differences, for example, for generating the actual helper function
that carries all u64 regs, we need to fill unused regs, so that we always end up
with 5 u64 regs as an argument.
I reviewed several 0-5 generated BPF_CALL_<n>() variants of the .i results and
they look all as expected. No sparse issue spotted. We let this also sit for a
few days with Fengguang's kbuild test robot, and there were no issues seen. On
s390, it barked on the "uses dynamic stack allocation" notice, which is an old
one from bpf_perf_event_output{,_tp}() reappearing here due to the conversion
to the call wrapper, just telling that the perf raw record/frag sits on stack
(gcc with s390's -mwarn-dynamicstack), but that's all. Did various runtime tests
and they were fine as well. All eBPF helpers are now converted to use these
macros, getting rid of a good chunk of all the raw castings.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 9 Sep 2016 00:45:30 +0000 (02:45 +0200)]
bpf: add own ctx rewriter on ifindex for clsact progs
When fetching ifindex, we don't need to test dev for being NULL since
we're always guaranteed to have a valid dev for clsact programs. Thus,
avoid this test in fast path.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 9 Sep 2016 00:45:29 +0000 (02:45 +0200)]
bpf: add BPF_SIZEOF and BPF_FIELD_SIZEOF macros
Add BPF_SIZEOF() and BPF_FIELD_SIZEOF() macros to improve the code a bit
which otherwise often result in overly long bytes_to_bpf_size(sizeof())
and bytes_to_bpf_size(FIELD_SIZEOF()) lines. So place them into a macro
helper instead. Moreover, we currently have a BUILD_BUG_ON(BPF_FIELD_SIZEOF())
check in convert_bpf_extensions(), but we should rather make that generic
as well and add a BUILD_BUG_ON() test in all BPF_SIZEOF()/BPF_FIELD_SIZEOF()
users to detect any rewriter size issues at compile time. Note, there are
currently none, but we want to assert that it stays this way.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 9 Sep 2016 00:45:28 +0000 (02:45 +0200)]
bpf: minor cleanups in helpers
Some minor misc cleanups, f.e. use sizeof(__u32) instead of hardcoding
and in __bpf_skb_max_len(), I missed that we always have skb->dev valid
anyway, so we can drop the unneeded test for dev; also few more other
misc bits addressed here.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 8 Sep 2016 22:40:48 +0000 (15:40 -0700)]
ip_tunnel: do not clear l4 hashes
If skb has a valid l4 hash, there is no point clearing hash and force
a further flow dissection when a tunnel encapsulation is added.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jean Delvare [Thu, 8 Sep 2016 14:25:15 +0000 (16:25 +0200)]
drivers: net: phy: mdio-xgene: Add hardware dependency
The mdio-xgene driver is only useful on X-Gene SoC.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Iyappan Subramanian <isubramanian@apm.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Markus Elfring [Thu, 8 Sep 2016 13:43:37 +0000 (15:43 +0200)]
ATM-ForeRunnerHE: Use kmalloc_array() in he_init_group()
* Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
* Replace the specification of data types by pointer dereferences
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>
Markus Elfring [Thu, 8 Sep 2016 12:20:17 +0000 (14:20 +0200)]
ATM-ENI: Use kmalloc_array() in eni_start()
* 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>
David S. Miller [Sat, 10 Sep 2016 02:24:21 +0000 (19:24 -0700)]
Merge tag 'rxrpc-rewrite-
20160908' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Rewrite data and ack handling
This patch set constitutes the main portion of the AF_RXRPC rewrite. It
consists of five fix/helper patches:
(1) Fix ASSERTCMP's and ASSERTIFCMP's handling of signed values.
(2) Update some protocol definitions slightly.
(3) Use of an hlist for RCU purposes.
(4) Removal of per-call sk_buff accounting (not really needed when skbs
aren't being queued on the main queue).
(5) Addition of a tracepoint to log incoming packets in the data_ready
callback and to log the end of the data_ready callback.
And then there are two patches that form the main part:
(6) Preallocation of resources for incoming calls so that in patch (7) the
data_ready handler can be made to fully instantiate an incoming call
and make it live. This extends through into AFS so that AFS can
preallocate its own incoming call resources.
The preallocation size is capped at the listen() backlog setting - and
that is capped at a sysctl limit which can be set between 4 and 32.
The preallocation is (re)charged either by accepting/rejecting pending
calls or, in the case of AFS, manually. If insufficient preallocation
resources exist, a BUSY packet will be transmitted.
The advantage of using this preallocation is that once a call is set
up in the data_ready handler, DATA packets can be queued on it
immediately rather than the DATA packets being queued for a background
work item to do all the allocation and then try and sort out the DATA
packets whilst other DATA packets may still be coming in and going
either to the background thread or the new call.
(7) Rewrite the handling of DATA, ACK and ABORT packets.
In the receive phase, DATA packets are now held in per-call circular
buffers with deduplication, out of sequence detection and suchlike
being done in data_ready. Since there is only one producer and only
once consumer, no locks need be used on the receive queue.
Received ACK and ABORT packets are now parsed and discarded in
data_ready to recycle resources as fast as possible.
sk_buffs are no longer pulled, trimmed or cloned, but rather the
offset and size of the content is tracked. This particularly affects
jumbo DATA packets which need insertion into the receive buffer in
multiple places. Annotations are kept to track which bit is which.
Packets are no longer queued on the socket receive queue; rather,
calls are queued. Dummy packets to convey events therefore no longer
need to be invented and metadata packets can be discarded as soon as
parsed rather then being pushed onto the socket receive queue to
indicate terminal events.
The preallocation facility added in (6) is now used to set up incoming
calls with very little locking required and no calls to the allocator
in data_ready.
Decryption and verification is now handled in recvmsg() rather than in
a background thread. This allows for the future possibility of
decrypting directly into the user buffer.
With this patch, the code is a lot simpler and most of the mass of
call event and state wangling code in call_event.c is gone.
With this, the majority of the AF_RXRPC rewrite is complete. However,
there are still things to be done, including:
(*) Limit the number of active service calls to prevent an attacker from
filling up a server's memory.
(*) Limit the number of calls on the rebuff-with-BUSY queue.
(*) Transmit delayed/deferred ACKs from recvmsg() if possible, rather than
punting to the background thread. Ideally, the background thread
shouldn't run at all, but data_ready can't call kernel_sendmsg() and
we can't rely on recvmsg() attending to the call in a timely fashion.
(*) Prevent the call at the front of the socket queue from hogging
recvmsg()'s attention if there's a sufficiently continuous supply of
data.
(*) Distribute ICMP errors by connection rather than by call. Possibly
parse the ICMP packet to try and pin down the exact connection and
call.
(*) Encrypt/decrypt directly between user buffers and socket buffers where
possible.
(*) IPv6.
(*) Service ID upgrade. This is a facility whereby a special flag bit is
set in the DATA packet header when making a call that tells the server
that it is allowed to change the service ID to an upgraded one and
reply with an equivalent call from the upgraded service.
This is used, for example, to override certain AFS calls so that IPv6
addresses can be returned.
(*) Allow userspace to preallocate call user IDs for incoming calls.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 10 Sep 2016 02:21:07 +0000 (19:21 -0700)]
Merge tag 'wireless-drivers-for-davem-2016-09-08' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.8
iwlwifi
* fix P2P dump trigger
* prevent a potential null dereference in iwlmvm
* prevent an uninitialized value from being returned in iwlmvm
* advertise support for channel width change in AP mode
ath10k
* fix racy rx status retrieval from htt context
* QCA9887 support is not experimental anymore, remove the warning message
ath9k
* fix regression with led GPIOs
* fix AR5416 GPIO access warning
brcmfmac
* avoid potential stack overflow in brcmf_cfg80211_start_ap()
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Lars Persson [Thu, 8 Sep 2016 11:24:21 +0000 (13:24 +0200)]
dwc_eth_qos: do not register semi-initialized device
We move register_netdev() to the end of dwceqos_probe() to close any
races where the netdev callbacks are called before the initialization
has finished.
Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marcelo Ricardo Leitner [Thu, 8 Sep 2016 09:54:11 +0000 (17:54 +0800)]
sctp: identify chunks that need to be fragmented at IP level
Previously, without GSO, it was easy to identify it: if the chunk didn't
fit and there was no data chunk in the packet yet, we could fragment at
IP level. So if there was an auth chunk and we were bundling a big data
chunk, it would fragment regardless of the size of the auth chunk. This
also works for the context of PMTU reductions.
But with GSO, we cannot distinguish such PMTU events anymore, as the
packet is allowed to exceed PMTU.
So we need another check: to ensure that the chunk that we are adding,
actually fits the current PMTU. If it doesn't, trigger a flush and let
it be fragmented at IP level in the next round.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 8 Sep 2016 09:04:24 +0000 (10:04 +0100)]
via-velocity: remove null pointer check on array tdinfo->skb_dma
tdinfo->skb_dma is a 7 element array of dma_addr_t hence cannot be
null, so the pull pointer check on tdinfo->skb_dma is redundant.
Remove it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Baoyou Xie [Thu, 8 Sep 2016 08:43:23 +0000 (16:43 +0800)]
qede: mark qede_set_features() static
We get 1 warning when building kernel with W=1:
drivers/net/ethernet/qlogic/qede/qede_main.c:2113:5: warning: no previous prototype for 'qede_set_features' [-Wmissing-prototypes]
In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
so this patch marks this function with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Raju Lakkaraju [Thu, 8 Sep 2016 08:39:31 +0000 (14:09 +0530)]
net: phy: Fixed checkpatch errors for Microsemi PHYs.
The existing VSC85xx PHY driver did not follow the coding style and caused "checkpatch" to complain. This commit fixes this.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 8 Sep 2016 07:42:06 +0000 (08:42 +0100)]
net: x25: remove null checks on arrays calling_ae and called_ae
dtefacs.calling_ae and called_ae are both 20 element __u8 arrays and
cannot be null and hence are redundant checks. Remove these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Jiang [Fri, 9 Sep 2016 16:10:08 +0000 (09:10 -0700)]
libnvdimm: allow legacy (e820) pmem region to clear bad blocks
Bad blocks can be injected via /sys/block/pmemN/badblocks. In a situation
where legacy pmem is being used or a pmem region created by using memmap
kernel parameter, the injected bad blocks are not cleared due to
nvdimm_clear_poison() failing from lack of ndctl function pointer. In
this case we need to just return as handled and allow the bad blocks to
be cleared rather than fail.
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Vishal Verma [Fri, 2 Sep 2016 23:27:30 +0000 (17:27 -0600)]
nfit, mce: Fix SPA matching logic in MCE handler
The check for a 'pmem' type SPA in the MCE handler was inverted due to a
merge/rebase error.
Fixes: 6839a6d nfit: do an ARS scrub on hitting a latent media error
Cc: linux-acpi@vger.kernel.org
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Wed, 7 Sep 2016 15:51:21 +0000 (08:51 -0700)]
mm: fix cache mode of dax pmd mappings
track_pfn_insert() in vmf_insert_pfn_pmd() is marking dax mappings as
uncacheable rendering them impractical for application usage. DAX-pte
mappings are cached and the goal of establishing DAX-pmd mappings is to
attain more performance, not dramatically less (3 orders of magnitude).
track_pfn_insert() relies on a previous call to reserve_memtype() to
establish the expected page_cache_mode for the range. While memremap()
arranges for reserve_memtype() to be called, devm_memremap_pages() does
not. So, teach track_pfn_insert() and untrack_pfn() how to handle
tracking without a vma, and arrange for devm_memremap_pages() to
establish the write-back-cache reservation in the memtype tree.
Cc: <stable@vger.kernel.org>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Nilesh Choudhury <nilesh.choudhury@oracle.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Toshi Kani <toshi.kani@hpe.com>
Reported-by: Kai Zhang <kai.ka.zhang@oracle.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Sat, 3 Sep 2016 17:38:03 +0000 (10:38 -0700)]
mm: fix show_smap() for zone_device-pmd ranges
Attempting to dump /proc/<pid>/smaps for a process with pmd dax mappings
currently results in the following VM_BUG_ONs:
kernel BUG at mm/huge_memory.c:1105!
task:
ffff88045f16b140 task.stack:
ffff88045be14000
RIP: 0010:[<
ffffffff81268f9b>] [<
ffffffff81268f9b>] follow_trans_huge_pmd+0x2cb/0x340
[..]
Call Trace:
[<
ffffffff81306030>] smaps_pte_range+0xa0/0x4b0
[<
ffffffff814c2755>] ? vsnprintf+0x255/0x4c0
[<
ffffffff8123c46e>] __walk_page_range+0x1fe/0x4d0
[<
ffffffff8123c8a2>] walk_page_vma+0x62/0x80
[<
ffffffff81307656>] show_smap+0xa6/0x2b0
kernel BUG at fs/proc/task_mmu.c:585!
RIP: 0010:[<
ffffffff81306469>] [<
ffffffff81306469>] smaps_pte_range+0x499/0x4b0
Call Trace:
[<
ffffffff814c2795>] ? vsnprintf+0x255/0x4c0
[<
ffffffff8123c46e>] __walk_page_range+0x1fe/0x4d0
[<
ffffffff8123c8a2>] walk_page_vma+0x62/0x80
[<
ffffffff81307696>] show_smap+0xa6/0x2b0
These locations are sanity checking page flags that must be set for an
anonymous transparent huge page, but are not set for the zone_device
pages associated with dax mappings.
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
David S. Miller [Fri, 9 Sep 2016 23:56:54 +0000 (16:56 -0700)]
Merge branch 'mlxsw-fixes'
Jiri Pirko says:
====================
mlxsw: couple of fixes
Couple of fixes from Ido and myself.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 8 Sep 2016 06:16:02 +0000 (08:16 +0200)]
mlxsw: spectrum: Set port type before setting its address
During port init, we currently set the port's type to Ethernet after
setting its MAC address. However, the hardware documentation states this
should be the other way around.
Align the driver with the hardware documentation and set the port's MAC
address after setting its type.
Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 8 Sep 2016 06:16:01 +0000 (08:16 +0200)]
mlxsw: spectrum_router: Fix error path in mlxsw_sp_router_init
When neigh_init fails, we have to do proper cleanup including
router_fini call.
Fixes: 6cf3c971dc84cb ("mlxsw: spectrum_router: Add private neigh table")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Wed, 7 Sep 2016 21:07:32 +0000 (14:07 -0700)]
macsec: set network devtype
The netdevice type structure for macsec was being defined but never used.
To set the network device type the macro SET_NETDEV_DEVTYPE must be called.
Compile tested only, I don't use macsec.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Wed, 7 Sep 2016 20:57:36 +0000 (13:57 -0700)]
rtnetlink: remove unused ifla_stats_policy
This structure is defined but never used. Flagged with W=1
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 9 Sep 2016 23:50:23 +0000 (16:50 -0700)]
Merge branch 'newroute-creation-flags'
Guillaume Nault says:
====================
ip: fix creation flags reported in RTM_NEWROUTE events
Netlink messages sent to user-space upon RTM_NEWROUTE events have their
nlmsg_flags field inconsistently set. While the NLM_F_REPLACE and
NLM_F_APPEND bits are correctly handled, NLM_F_CREATE and NLM_F_EXCL
are always 0.
This series sets the NLM_F_CREATE and NLM_F_EXCL bits when applicable,
for IPv4 and IPv6.
Since IPv6 ignores the NLM_F_APPEND flags in requests, this flag isn't
reported in RTM_NEWROUTE IPv6 events. This keeps IPv6 internal
consistency (same flag semantic for user requests and kernel events) at
the cost of bringing different flag interpretation for IPv4 and IPv6.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Wed, 7 Sep 2016 15:21:40 +0000 (17:21 +0200)]
ipv6: report NLM_F_CREATE and NLM_F_EXCL flags in RTM_NEWROUTE events
Since commit
37a1d3611c12 ("ipv6: include NLM_F_REPLACE in route
replace notifications"), RTM_NEWROUTE notifications have their
NLM_F_REPLACE flag set if the new route replaced a preexisting one.
However, other flags aren't set.
This patch reports the missing NLM_F_CREATE and NLM_F_EXCL flag bits.
NLM_F_APPEND is not reported, because in ipv6 a NLM_F_CREATE request
is interpreted as an append request (contrary to ipv4, "prepend" is not
supported, so if NLM_F_EXCL is not set then NLM_F_APPEND is implicit).
As a result, the possible flag combination can now be reported
(iproute2's terminology into parentheses):
* NLM_F_CREATE | NLM_F_EXCL: route didn't exist, exclusive creation
("add").
* NLM_F_CREATE: route did already exist, new route added after
preexisting ones ("append").
* NLM_F_REPLACE: route did already exist, new route replaced the
first preexisting one ("change").
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Wed, 7 Sep 2016 15:20:46 +0000 (17:20 +0200)]
ipv4: fix value of ->nlmsg_flags reported in RTM_NEWROUTE events
fib_table_insert() inconsistently fills the nlmsg_flags field in its
notification messages.
Since commit
b8f558313506 ("[RTNETLINK]: Fix sending netlink message
when replace route."), the netlink message has its nlmsg_flags set to
NLM_F_REPLACE if the route replaced a preexisting one.
Then commit
a2bb6d7d6f42 ("ipv4: include NLM_F_APPEND flag in append
route notifications") started setting nlmsg_flags to NLM_F_APPEND if
the route matched a preexisting one but was appended.
In other cases (exclusive creation or prepend), nlmsg_flags is 0.
This patch sets ->nlmsg_flags in all situations, preserving the
semantic of the NLM_F_* bits:
* NLM_F_CREATE: a new fib entry has been created for this route.
* NLM_F_EXCL: no other fib entry existed for this route.
* NLM_F_REPLACE: this route has overwritten a preexisting fib entry.
* NLM_F_APPEND: the new fib entry was added after other entries for
the same route.
As a result, the possible flag combination can now be reported
(iproute2's terminology into parentheses):
* NLM_F_CREATE | NLM_F_EXCL: route didn't exist, exclusive creation
("add").
* NLM_F_CREATE | NLM_F_APPEND: route did already exist, new route
added after preexisting ones ("append").
* NLM_F_CREATE: route did already exist, new route added before
preexisting ones ("prepend").
* NLM_F_REPLACE: route did already exist, new route replaced the
first preexisting one ("change").
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 9 Sep 2016 21:52:05 +0000 (14:52 -0700)]
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"This includes a couple of bugfixs for virtio.
The virtio console patch is actually also in x86/tip targeting 4.9
because it helps vmap stacks, but it also fixes IOMMU_PLATFORM which
was added in 4.8, and it seems important not to ship that in a broken
configuration"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_console: Stop doing DMA on the stack
virtio: mark vring_dma_dev() static
Linus Torvalds [Fri, 9 Sep 2016 21:47:41 +0000 (14:47 -0700)]
Merge tag 'pm-4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"This includes a PM QoS framework fix from Tejun to prevent interrupts
from being enabled unexpectedly during early boot and a cpufreq
documentation fix.
Specifics:
- If the PM QoS framework invokes cancel_delayed_work_sync() during
early boot, it will enable interrupts which is not expected at that
point, so prevent it from happening (Tejun Heo)
- Fix cpufreq statistic documentation to follow a recent change in
behavior that forgot to update it as appropriate (Jean Delvare)"
* tag 'pm-4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq-stats: Minor documentation fix
PM / QoS: avoid calling cancel_delayed_work_sync() during early boot
Rafael J. Wysocki [Fri, 9 Sep 2016 20:34:16 +0000 (22:34 +0200)]
Merge branches 'pm-core-fixes' and 'pm-cpufreq-fixes'
* pm-core-fixes:
PM / QoS: avoid calling cancel_delayed_work_sync() during early boot
* pm-cpufreq-fixes:
cpufreq-stats: Minor documentation fix
Linus Torvalds [Fri, 9 Sep 2016 20:09:50 +0000 (13:09 -0700)]
Merge tag 'gpio-v4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Some GPIO fixes that have been boiling the last two weeks or so.
Nothing special, I'm trying to sort out some Kconfig business and
Russell needs a fix in for -his SA1100 rework.
Summary:
- Revert a pointless attempt to add an include to solve the UM allyes
compilation problem.
- Make the mcp23s08 depend on OF_GPIO as it uses it and doesn't
compile properly without it.
- Fix a probing problem for ucb1x00"
* tag 'gpio-v4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: sa1100: fix irq probing for ucb1x00
gpio: mcp23s08: make driver depend on OF_GPIO
Revert "gpio: include <linux/io-mapping.h> in gpiolib-of"
Linus Torvalds [Fri, 9 Sep 2016 20:00:41 +0000 (13:00 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fix from Miklos Szeredi:
"This fixes a deadlock when fuse, direct I/O and loop device are
combined"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: direct-io: don't dirty ITER_BVEC pages
Linus Torvalds [Fri, 9 Sep 2016 19:56:28 +0000 (12:56 -0700)]
Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fix from Miklos Szeredi:
"This fixes a regression caused by the last pull request"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix workdir creation
Linus Torvalds [Fri, 9 Sep 2016 19:52:31 +0000 (12:52 -0700)]
Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"I'm not proud of how long it took me to track down that one liner in
btrfs_sync_log(), but the good news is the patches I was trying to
blame for these problems were actually fine (sorry Filipe)"
* 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: introduce tickets_id to determine whether asynchronous metadata reclaim work makes progress
btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns
btrfs: do not decrease bytes_may_use when replaying extents
Linus Torvalds [Fri, 9 Sep 2016 19:02:46 +0000 (12:02 -0700)]
Merge tag 'sound-4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"We've got quite a few fixes at this time, and all are stable patches.
syzkaller strikes back again (episode 19 or so), and we had to plug
some holes in ALSA core part (mostly timer).
In addition, a couple of FireWire audio fixes for the invalid copy
user calls in locks, and a few quirks for HD-audio and USB-audio as
usual are included"
* tag 'sound-4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: rawmidi: Fix possible deadlock with virmidi registration
ALSA: timer: Fix zero-division by continue of uninitialized instance
ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
ALSA: fireworks: accessing to user space outside spinlock
ALSA: firewire-tascam: accessing to user space outside spinlock
ALSA: hda - Enable subwoofer on Dell Inspiron 7559
ALSA: hda - Add headset mic quirk for Dell Inspiron 5468
ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114
ALSA: timer: fix NULL pointer dereference on memory allocation failure
ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
Andy Lutomirski [Tue, 30 Aug 2016 15:04:15 +0000 (08:04 -0700)]
virtio_console: Stop doing DMA on the stack
virtio_console uses a small DMA buffer for control requests. Move
that buffer into heap memory.
Doing virtio DMA on the stack is normally okay on non-DMA-API virtio
systems (which is currently most of them), but it breaks completely
if the stack is virtually mapped.
Tested by typing both directions using picocom aimed at /dev/hvc0.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Baoyou Xie [Thu, 1 Sep 2016 11:02:57 +0000 (19:02 +0800)]
virtio: mark vring_dma_dev() static
We get 1 warning when building kernel with W=1:
drivers/virtio/virtio_ring.c:170:16: warning: no previous prototype for 'vring_dma_dev' [-Wmissing-prototypes]
In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
so this patch marks this function with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Linus Torvalds [Fri, 9 Sep 2016 17:54:29 +0000 (10:54 -0700)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- smp_mb__before_spinlock() changed to smp_mb() on arm64 since the
generic definition to smp_wmb() is not sufficient
- avoid a recursive loop with the graph tracer by using using
preempt_(enable|disable)_notrace in _percpu_(read|write)
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: use preempt_disable_notrace in _percpu_read/write
arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb()
Linus Torvalds [Fri, 9 Sep 2016 15:43:42 +0000 (08:43 -0700)]
Merge tag 'powerpc-4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- Don't alias user region to other regions below PAGE_OFFSET from
Paul Mackerras
- Fix again csum_partial_copy_generic() on 32-bit from Christophe
Leroy
- Fix corrupted PE allocation bitmap on releasing PE from Gavin Shan
Fixes for code merged this cycle:
- Fix crash on releasing compound PE from Gavin Shan
- Fix processor numbers in OPAL ICP from Benjamin Herrenschmidt
- Fix little endian build with CONFIG_KEXEC=n from Thiago Jung
Bauermann"
* tag 'powerpc-4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET
powerpc/32: Fix again csum_partial_copy_generic()
powerpc/powernv: Fix corrupted PE allocation bitmap on releasing PE
powerpc/powernv: Fix crash on releasing compound PE
powerpc/xics/opal: Fix processor numbers in OPAL ICP
powerpc/pseries: Fix little endian build with CONFIG_KEXEC=n
Linus Torvalds [Fri, 9 Sep 2016 15:32:10 +0000 (08:32 -0700)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"A few ARM fixes:
- Robin Murphy noticed that the non-secure privileged entry was
relying on undefined behaviour, which needed to be fixed.
- Vladimir Murzin noticed that prov-v7 fails to build for MMUless
configurations because a required header file wasn't included.
- A bunch of fixes for StrongARM regressions found while testing
4.8-rc on such platforms"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: sa1100: clear reset status prior to reboot
ARM: 8600/1: Enforce some NS-SVC initialisation
ARM: 8599/1: mm: pull asm/memory.h explicitly
ARM: sa1100: register clocks early
ARM: sa1100: fix 3.6864MHz clock
Greg Kroah-Hartman [Fri, 9 Sep 2016 13:11:35 +0000 (15:11 +0200)]
Merge tag 'fixes-for-v4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.8-rc6
Unfortunately we have a bogus dwc3 patch leaked through the cracks and
got merged into Linus' HEAD. That patch ended up causing off-by-1 error
in our TRB accounting logic. Thankfully John Youn found out the problem
and we provided a revert to the bogus dwc3 patch in no time.
Apart from this off-by-1 error, we have two fixes to the Renesas drivers,
a small fix to our generic phy driver, a NULL pointer dereference fix for
f_eem and a build warning fix in dwc3.
Kalle Valo [Fri, 9 Sep 2016 12:19:40 +0000 (15:19 +0300)]
Merge branch 'ath-current' into ath-next
Commit
3c97f5de1f28 ("ath10k: implement NAPI support") conflicts with
ath-current. To avoid any merge problems merge ath-current to ath-next already now.
Conflicts:
drivers/net/wireless/ath/ath10k/htt_rx.c
Daniel Wagner [Thu, 18 Aug 2016 13:12:05 +0000 (15:12 +0200)]
carl9170: Fix wrong completion usage
carl9170_usb_stop() is used from several places to flush and cleanup any
pending work. The normal pattern is to send a request and wait for the
irq handler to call complete(). The completion is not reinitialized
during normal operation and as the old comment indicates it is important
to keep calls to wait_for_completion_timeout() and complete() balanced.
Calling complete_all() brings this equilibirum out of balance and needs
to be fixed by a reinit_completion(). But that opens a small race
window. It is possible that the sequence of complete_all(),
reinit_completion() is faster than the wait_for_completion_timeout() can
do its work. The wake up is not lost but the done counter test is after
reinit_completion() has been executed. The only reason we don't see
carl9170_exec_cmd() hang forever is we use the timeout version of
wait_for_copletion().
Let's fix this by reinitializing the completion (that is just setting
done counter to 0) just before we send out an request. Now,
carl9170_usb_stop() can be sure a complete() call is enough to make
progess since there is only one waiter at max. This is a common pattern
also seen in various drivers which use completion.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Eric Bentley [Tue, 30 Aug 2016 06:16:19 +0000 (02:16 -0400)]
ath6kl: Allow the radio to report 0 dbm txpower without timing out
The ath6kl driver attempts to get the txpower value from the radio by first
clearing the existing stored value and then watching the value to become
non-zero.
APs allow setting client power to values from -127..127, but this radio
is not capable of setting values less then 0 and so will report txpower
as 0dbm for both negative and 0 client power values.
When the radio has txpower set to 0dbm txpower (equivalent to 1mw) the
ath6kl_cfg80211_get_txpower() function will remain in the
wait_event_interruptible_timeout() loop waiting for the value to be
non-zero, and will eventually timeout. This results in a 5 second delay in
response. However, the correct value of zero is eventually returned.
The 6004 defaults to 63dbm which is then limited by regulatory and
hardware limits with max of 18dbm (6003 max is 16dbm), therefore we can
use values larger then these to be able to determine when the value has
been updated.
To correct the issue, set the value to a nonsensical value (255) and wait
for it to change to the valid value.
Tested on both 6003 and 6004 based radios. Return value of zero is
correctly returned in an expected amount of time (similar to when
returning non-zero values) when AP client power is set to both 0 and
negative values.
Signed-off-by: Eric Bentley <eric.bentley@lairdtech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Dan Kephart [Wed, 3 Aug 2016 20:43:43 +0000 (16:43 -0400)]
ath6kl: enable firmware crash dumps on the AR6004
The firmware crash dumps on the 6004 are the same as the 6003. Remove the
statement guarding it from dumping on the 6004. Renamed the
REG_DUMP_COUNT_AR6003 to reflect support on both chips.
Signed-off-by: Dan Kephart <dan.kephart@lairdtech.com>
Reviewed-by: Steve deRosier <steve.derosier@lairdtech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Bob Copeland [Sat, 16 Apr 2016 14:54:37 +0000 (10:54 -0400)]
ath9k: remove repetitions of mask array size
The constant "123", which is the number of elements in
mask_m / mask_p, is repeated several times in this function.
Replace memsets with array initialization, and replace a loop
conditional with ARRAY_SIZE() so that we don't repeat ourselves.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Ashok Raj Nagarajan [Fri, 2 Sep 2016 05:29:53 +0000 (10:59 +0530)]
ath10k: fix reporting channel survey data
When user requests for survey dump data, driver is providing wrong survey
information. This information we sent is the survey data that we have
collected during previous user request.
This issue occurs because we request survey dump for wrong channel. With
this change, we correctly display the correct and current survey
information to userspace.
Fixes: fa7937e3d5c2 ("ath10k: update bss channel survey information")
Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Mohammed Shafi Shajakhan [Thu, 1 Sep 2016 16:13:36 +0000 (21:43 +0530)]
ath10k: remove unnecessary error code assignment
The error assigned does not seems to be used anywhere,
fixes nothing just a small cleanup
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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