Commit graph

707601 commits

Author SHA1 Message Date
Ernesto A. Fernández
309e8cda59 gfs2: preserve i_mode if __gfs2_set_acl() fails
When changing a file's acl mask, __gfs2_set_acl() will first set the
group bits of i_mode to the value of the mask, and only then set the
actual extended attribute representing the new acl.

If the second part fails (due to lack of space, for example) and the
file had no acl attribute to begin with, the system will from now on
assume that the mask permission bits are actual group permission bits,
potentially granting access to the wrong users.

Prevent this by only changing the inode mode after the acl has been set.

Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2017-08-31 07:53:15 -05:00
Andy Shevchenko
8546137721 pinctrl: intel: Decrease indentation in intel_gpio_set()
Decrease indentation in intel_gpio_set() to make it looking slightly better
and be in align with intel_gpio_get().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-31 14:46:36 +02:00
Jacopo Mondi
cb715d0ad0 pinctrl: rza1: Remove suffix from gpiochip label
The OF node name already contains the gpio chip identifier, no need to
append it when creating the label.

The following debug message clearly shows the suffix is not required
"pinctrl-rza1 fcfe3000.pin-controller: Parsed gpiochip gpio-0-0 with 6
pins"

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-31 14:45:18 +02:00
Ernesto A. Fernández
54aae14bee gfs2: don't return ENODATA in __gfs2_xattr_set unless replacing
The function __gfs2_xattr_set() will return -ENODATA when called to
remove a xattr that does not exist. The result is that setfacl will
show an exit status of 1 when called to set only a file's mode bits
(on a file with no ACLs), despite succeeding. A "No data available"
error will be printed as well.

To fix this return 0 instead, except when the XATTR_REPLACE flag is
set, in which case -ENODATA is appropriate. This is consistent with
how most other xattr setting functions work, in other filesystems.

Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2017-08-31 07:43:03 -05:00
Matan Barak
8eb19e8e7c IB/core: Expose ioctl interface through experimental Kconfig
Add CONFIG_INFINIBAND_EXP_USER_ACCESS that enables the ioctl
interface. This interface is experimental and is subject to change.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:14 -04:00
Matan Barak
5242711294 IB/core: Assign root to all drivers
In order to use the parsing tree, we need to assign the root
to all drivers. Currently, we just assign the default parsing
tree via ib_uverbs_add_one. The driver could override this by
assigning a parsing tree prior to registering the device.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:14 -04:00
Matan Barak
9ee79fce36 IB/core: Add completion queue (cq) object actions
Adding CQ ioctl actions:
1. create_cq
2. destroy_cq

This requires adding the following:
1. A specification describing the method
	a. Handler
	b. Attributes specification
		Each attribute is one of the following:
		a. PTR_IN - input data
			    Note: This could be encoded inlined for
				  data < 64bit
		b. PTR_OUT - response data
		c. IDR - idr based object
		d. FD - fd based object
                Blobs attributes (clauses a and b) contain their type,
	        while objects specifications (clauses c and d)
                contains the expected object type (for example, the
                given id should be UVERBS_TYPE_PD) and the required
                access (READ, WRITE, NEW or DESTROY). If a NEW is
                required, the new object's id will be assigned to this
                attribute. All attributes could get UA_FLAGS
                attribute. Currently we support stating that an
		attribute is mandatory or that the specification size
                corresponds to a lower bound (and that this attribute
		could be extended).
		We currently add both default attributes and the two
		generic UHW_IN and UHW_OUT driver specific attributes.
2. Handler
   A handler gets a uverbs_attr_bundle. The handler developer uses
   uverbs_attr_get to fetch an attribute of a given id.
   Each of these attribute groups correspond to the specification
   group defined in the action (clauses 1.b and 1.c respectively).
   The indices of these arrays corresponds to the attribute ids
   declared in the specifications (clause 2).

   The handler is quite simple. It assumes the infrastructure fetched
   all objects and locked, created or destroyed them as required by
   the specification. Pointer (or blob) attributes were validated to
   match their required sizes. After the handler finished, the
   infrastructure commits or rollbacks the objects.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:13 -04:00
Matan Barak
d70724f149 IB/core: Add legacy driver's user-data
In this phase, we don't want to change all the drivers to use
flexible driver's specific attributes. Therefore, we add two default
attributes: UHW_IN and UHW_OUT. These attributes are optional in some
methods and they encode the driver specific command data. We add
a function that extract this data and creates the legacy udata over
it.

Driver's data should start from UVERBS_UDATA_DRIVER_DATA_FLAG. This
turns on the first bit of the namespace, indicating this attribute
belongs to the driver's namespace.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:13 -04:00
Matan Barak
64b19e1323 IB/core: Export ioctl enum types to user-space
Add a new ib_user_ioctl_verbs.h which exports all required ABI
enums and structs to the user-space.
Export the default types to user-space through this file.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:12 -04:00
Matan Barak
4da70da23e IB/core: Explicitly destroy an object while keeping uobject
When some objects are destroyed, we need to extract their status at
destruction. After object's destruction, this status
(e.g. events_reported) relies in the uobject. In order to have the
latest and correct status, the underlying object should be destroyed,
but we should keep the uobject alive and read this information off the
uobject. We introduce a rdma_explicit_destroy function. This function
destroys the class type object (for example, the IDR class type which
destroys the underlying object as well) and then convert the uobject
to be of a null class type. This uobject will then be destroyed as any
other uobject once uverbs_finalize_object[s] is called.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:11 -04:00
Matan Barak
3541030650 IB/core: Add macros for declaring methods and attributes
This patch adds macros for declaring objects, methods and
attributes. These definitions are later used by downstream patches
to declare some of the default types.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:11 -04:00
Matan Barak
118620d368 IB/core: Add uverbs merge trees functionality
Different drivers support different features and even subset of the
common uverbs implementation. Currently, this is handled as bitmask
in every driver that represents which kind of methods it supports, but
doesn't go down to attributes granularity. Moreover, drivers might
want to add their specific types, methods and attributes to let
their user-space counter-parts be exposed to some more efficient
abstractions. It means that existence of different features is
validated syntactically via the parsing infrastructure rather than
using a complex in-handler logic.

In order to do that, we allow defining features and abstractions
as parsing trees. These per-feature parsing tree could be merged
to an efficient (perfect-hash based) parsing tree, which is later
used by the parsing infrastructure.

To sum it up, this makes a parse tree unique for a device and
represents only the features this particular device supports.
This is done by having a root specification tree per feature.
Before a device registers itself as an IB device, it merges
all these trees into one parsing tree. This parsing tree
is used to parse all user-space commands.

A future user-space application could read this parse tree. This
tree represents which objects, methods and attributes are
supported by this device.

This is based on the idea of
Jason Gunthorpe <jgunthorpe@obsidianresearch.com>

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:10 -04:00
Matan Barak
09e3ebf8c1 IB/core: Add DEVICE object and root tree structure
This adds the DEVICE object. This object supports creating the context
that all objects are created from. Moreover, it supports executing
methods which are related to the device itself, such as QUERY_DEVICE.
This is a singleton object (per file instance).

All standard objects are put in the root structure. This root will later
on be used in drivers as the source for their whole parsing tree.
Later on, when new features are added, these drivers could mix this root
with other customized objects.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:10 -04:00
Matan Barak
5009010fbf IB/core: Declare an object instead of declaring only type attributes
Switch all uverbs_type_attrs_xxxx with DECLARE_UVERBS_OBJECT
macros. This will be later used in order to embed the object
specific methods in the objects as well.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:09 -04:00
Matan Barak
fac9658cab IB/core: Add new ioctl interface
In this ioctl interface, processing the command starts from
properties of the command and fetching the appropriate user objects
before calling the handler.

Parsing and validation is done according to a specifier declared by
the driver's code. In the driver, all supported objects are declared.
These objects are separated to different object namepsaces. Dividing
objects to namespaces is done at initialization by using the higher
bits of the object ids. This initialization can mix objects declared
in different places to one parsing tree using in this ioctl interface.

For each object we list all supported methods. Similarly to objects,
methods are separated to method namespaces too. Namespacing is done
similarly to the objects case. This could be used in order to add
methods to an existing object.

Each method has a specific handler, which could be either a default
handler or a driver specific handler.
Along with the handler, a bunch of attributes are specified as well.
Similarly to objects and method, attributes are namespaced and hashed
by their ids at initialization too. All supported attributes are
subject to automatic fetching and validation. These attributes include
the command, response and the method's related objects' ids.

When these entities (objects, methods and attributes) are used, the
high bits of the entities ids are used in order to calculate the hash
bucket index. Then, these high bits are masked out in order to have a
zero based index. Since we use these high bits for both bucketing and
namespacing, we get a compact representation and O(1) array access.
This is mandatory for efficient dispatching.

Each attribute has a type (PTR_IN, PTR_OUT, IDR and FD) and a length.
Attributes could be validated through some attributes, like:
(*) Minimum size / Exact size
(*) Fops for FD
(*) Object type for IDR

If an IDR/fd attribute is specified, the kernel also states the object
type and the required access (NEW, WRITE, READ or DESTROY).
All uobject/fd management is done automatically by the infrastructure,
meaning - the infrastructure will fail concurrent commands that at
least one of them requires concurrent access (WRITE/DESTROY),
synchronize actions with device removals (dissociate context events)
and take care of reference counting (increase/decrease) for concurrent
actions invocation. The reference counts on the actual kernel objects
shall be handled by the handlers.

 objects
+--------+
|        |
|        |   methods                                                                +--------+
|        |   ns         method      method_spec                           +-----+   |len     |
+--------+  +------+[d]+-------+   +----------------+[d]+------------+    |attr1+-> |type    |
| object +> |method+-> | spec  +-> +  attr_buckets  +-> |default_chain+--> +-----+   |idr_type|
+--------+  +------+   |handler|   |                |   +------------+    |attr2|   |access  |
|        |  |      |   +-------+   +----------------+   |driver chain|    +-----+   +--------+
|        |  |      |                                    +------------+
|        |  +------+
|        |
|        |
|        |
|        |
|        |
|        |
|        |
|        |
|        |
|        |
+--------+

[d] = Hash ids to groups using the high order bits

The right types table is also chosen by using the high bits from
the ids. Currently we have either default or driver specific groups.

Once validation and object fetching (or creation) completed, we call
the handler:
int (*handler)(struct ib_device *ib_dev, struct ib_uverbs_file *ufile,
               struct uverbs_attr_bundle *ctx);

ctx bundles attributes of different namespaces. Each element there
is an array of attributes which corresponds to one namespaces of
attributes. For example, in the usually used case:

 ctx                               core
+----------------------------+     +------------+
| core:                      +---> | valid      |
+----------------------------+     | cmd_attr   |
| driver:                    |     +------------+
|----------------------------+--+  | valid      |
                                |  | cmd_attr   |
                                |  +------------+
                                |  | valid      |
                                |  | obj_attr   |
                                |  +------------+
                                |
                                |  drivers
                                |  +------------+
                                +> | valid      |
                                   | cmd_attr   |
                                   +------------+
                                   | valid      |
                                   | cmd_attr   |
                                   +------------+
                                   | valid      |
                                   | obj_attr   |
                                   +------------+

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:09 -04:00
Adit Ranadive
14d6c3a83f RDMA/vmw_pvrdma: Fix a signedness
Fixes: 29c8d9eba5 ("IB: Add vmw_pvrdma driver")
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:08 -04:00
Aditya Sarwade
72f9b089ec RDMA/vmw_pvrdma: Report network header type in WC
We should report the network header type in the work completion so that
the kernel can infer the right RoCE type headers.

Reviewed-by: Bryan Tan <bryantan@vmware.com>
Signed-off-by: Aditya Sarwade <asarwade@vmware.com>
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:08 -04:00
Roland Dreier
79364227e6 IB/core: Add might_sleep() annotation to ib_init_ah_from_wc()
For RoCE, ib_init_ah_from_wc() can follow the path

    ib_init_ah_from_wc() ->
      rdma_addr_find_l2_eth_by_grh() ->
        rdma_resolve_ip()

and rdma_resolve_ip() will sleep in kzalloc() and wait_for_completion().

However, developers will not see any warnings if they use ib_init_ah_from_wc()
in an atomic context and test only on IB, because the function doesn't
sleep in that case.

Add a might_sleep() so that lockdep will catch bugs no matter what hardware is
used to test.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:07 -04:00
Roland Dreier
c761611811 IB/cm: Fix sleeping in atomic when RoCE is used
A couple of places in the CM do

    spin_lock_irq(&cm_id_priv->lock);
    ...
    if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))

However when the underlying transport is RoCE, this leads to a sleeping function
being called with the lock held - the callchain is

    cm_alloc_response_msg() ->
      ib_create_ah_from_wc() ->
        ib_init_ah_from_wc() ->
          rdma_addr_find_l2_eth_by_grh() ->
            rdma_resolve_ip()

and rdma_resolve_ip() starts out by doing

    req = kzalloc(sizeof *req, GFP_KERNEL);

not to mention rdma_addr_find_l2_eth_by_grh() doing

    wait_for_completion(&ctx.comp);

to wait for the task that rdma_resolve_ip() queues up.

Fix this by moving the AH creation out of the lock.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-31 08:35:07 -04:00
Vitaly Kuznetsov
773b79f7a7 tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others()
Add Hyper-V tracing subsystem and trace hyperv_mmu_flush_tlb_others().
Tracing is done the same way we do xen_mmu_flush_tlb_others().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jork Loeser <Jork.Loeser@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Xiao <sixiao@microsoft.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: devel@linuxdriverproject.org
Link: http://lkml.kernel.org/r/20170802160921.21791-10-vkuznets@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-31 14:20:37 +02:00
Vitaly Kuznetsov
628f54cc64 x86/hyper-v: Support extended CPU ranges for TLB flush hypercalls
Hyper-V hosts may support more than 64 vCPUs, we need to use
HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX/LIST_EX hypercalls in this
case.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jork Loeser <Jork.Loeser@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Xiao <sixiao@microsoft.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: devel@linuxdriverproject.org
Link: http://lkml.kernel.org/r/20170802160921.21791-9-vkuznets@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-31 14:20:36 +02:00
Ingo Molnar
3e83dfd5d8 Merge branch 'x86/mm' into x86/platform, to pick up TLB flush dependency
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-31 14:20:06 +02:00
Lior David
69fecf599f wil6210: ensure P2P device is stopped before removing interface
User space can remove the P2P management interface while it is active
(for example, while listen/search is active) and this can cause
a crash. Ensure the P2P device is fully stopped before removing.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:54 +03:00
Lior David
d83ad4c4fd wil6210: increase connect timeout
Connect can take longer than current timeout in some scenarios,
for example with long-range antenna array. Increase the timeout
to support these scenarios.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:50 +03:00
Dedy Lansky
7086d86175 wil6210: clear PAL_UNIT_ICR part of device reset
When FW starts running it can get D0 to D3 interrupt that is a leftover
from previous system suspend while FW was not running.
As this interrupt is not relevant anymore, clear it part of device reset
procedure.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:45 +03:00
Dedy Lansky
1490846d25 wil6210: move pre-FW configuration to separate function
Re-arrange the code to have dedicated function for device configuration
which takes place before FW starts running.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:40 +03:00
Lazar Alexei
761f8e4d46 wil6210: align to latest auto generated wmi.h
Align to latest version of the auto generated wmi file
describing the interface with FW.

Signed-off-by: Lazar Alexei <qca_ailizaro@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:35 +03:00
Gidon Studinski
5f591dac9f wil6210: make debugfs compilation optional
Since debugfs is a kernel configuration option, enable the driver to
compile without debugfs.

Signed-off-by: Gidon Studinski <qca_gidons@qca.qualcomm.com>
Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:31 +03:00
Lior David
40cbd88be7 wil6210: ratelimit errors in TX/RX interrupts
Sometimes there is a firmware crash but the hardware
is not fully stopped and continue to send TX/RX interrupts.
This can cause an overload of messages which can bring the
host down. Add ratelimit to these error messages to fix this.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:19:26 +03:00
Hauke Mehrtens
c0cc00f250 ath10k: activate user space firmware loading again
In commit 9f5bcfe933 ("ath10k: silence firmware file probing
warnings") the firmware loading was changed from request_firmware() to
request_firmware_direct() to silence some warnings in case it fails.
request_firmware_direct() directly searches in the file system only and
does not send a hotplug event to user space in case it could not find
the firmware directly.
In LEDE we use a user space script to extract the calibration data from
the flash memory which gets triggered by the hotplug event. This way the
firmware gets extracted from some vendor specific partition when the
driver requests this firmware. This mechanism does not work any more
after this change.

Fixes: 9f5bcfe933 ("ath10k: silence firmware file probing warnings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:15:15 +03:00
Erik Stromdahl
30b83fff6d ath10k: sdio: remove unused struct member
irq_wq in struct ath10k_sdio is a remnant from an earlier
version of the sdio patchset.

Its use was removed as a result of Kalle's review, but somehow
the struct member survived.

It is not used and can therefore safely be removed.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:14:18 +03:00
Ryan Hsu
c9353bf483 ath10k: fix napi_poll budget overflow
In napi_poll, the budget number is used to control the amount of packets
we should handle per poll to balance the resource in the system.

In the list of the amsdu packets reception, we check if there is budget
count left and handle the complete list of the packets, that it will have
chances the very last list will over the budget leftover.

So adding one more parameter - budget_left, this would help while
traversing the list to avoid handling more than the budget given.

Reported-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Fix-suggested-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Link: https://lkml.kernel.org/r/26670dce-4dd2-f8e4-0e14-90d74257e739@virtuozzo.com
Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-08-31 15:13:18 +03:00
Takashi Iwai
83b033bd33 ASoC: Fixes for v4.13
A couple of fixes, one for a regression in simple-card introduced during
 the merge window that was only reported this week and another for a
 regression in registration of ACPI GPIOs.
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlmn+AUTHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0FTNB/9mqEy0JFFxpr5K5z9YxgXIqJTtIcEV
 IoWyrPsZauGYN1OV1ozD6Fih9ZXM4Mp9zZ3UupY3WidSDJksz89r2eLUSCeXPMHL
 lY/Cpbq4/4ZVQVXZIY0UskbYqXQrbcadSyQqrX/EfvP5qQwMN5DVvRg4GlAKdTE0
 kPVnOOcpEnHbFk3r5hEqRa9zynFog0xGwO45G8mHtEjOstrPNECBELdfc3sUqt55
 PGQPMaNWLRK7mk/EmT2hEcAZx0U9IFXkZ0vymqhVnxZ6pyZEu8YRrzW9oulmHdvU
 G+KTm/LqcyzEzQTYFI7VxukOd84MT+xwN/2bHNm0ViAdo8xruhkMU3rH
 =ag+w
 -----END PGP SIGNATURE-----

Merge tag 'asoc-fix-v4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.13

A couple of fixes, one for a regression in simple-card introduced during
the merge window that was only reported this week and another for a
regression in registration of ACPI GPIOs.
2017-08-31 14:08:26 +02:00
Paul Mackerras
93b2d3cf37 powerpc: Correct instruction code for xxlor instruction
The instruction code for xxlor that commit 0016a4cf55 ("powerpc:
Emulate most Book I instructions in emulate_step()", 2010-06-15)
added is actually the code for xxlnor.  It is used in get_vsr()
and put_vsr() and the effect of the error is that if emulate_step
is used to emulate a VSX load or store from any register other
than vsr0, the bitwise complement of the correct value will be
loaded or stored.  This corrects the error.

Fixes: 0016a4cf55 ("powerpc: Emulate most Book I instructions in emulate_step()")
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31 22:07:19 +10:00
Michael Ellerman
f9effe9250 powerpc: Fix DAR reporting when alignment handler faults
Anton noticed that if we fault part way through emulating an unaligned
instruction, we don't update the DAR to reflect that.

The DAR value is eventually reported back to userspace as the address
in the SEGV signal, and if userspace is using that value to demand
fault then it can be confused by us not setting the value correctly.

This patch is ugly as hell, but is intended to be the minimal fix and
back ports easily.

Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
2017-08-31 22:06:57 +10:00
Martin Schwidefsky
0fdd49ad1b A bugfix in the ccw translation code.
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJZdiEwAAoJEN7Pa5PG8C+vPooQAJBpWITzls7r4vBpamg/24Ec
 VnVClfQte/sfpBzP18R9h7HeC9g9gFHTjmZ6hQMg386wIumnvESAx3moVG3gTGsV
 FBpTgAwb1s0m/x4nuVVxoHOi9RMqThldUhVrOo5o6DnqabMlkb0A7xYVByZBfQEp
 vaenzOTtRMltUADu7gWIjw4+tz35r4S5/l/WGqbGp6HYHbNwD8brfv7P8dPZ4u9l
 EMxzg47zeVeEb9WLA9fGUX2iO9wqOgHjPcuzO3Uua8rAsmR0MUBmYPGvRHN78MUr
 LD7qsCsmAmmYHPoopjG8o4R+PjkUNnBdvqKmLJYnEAP1wGOWQIiEWFg0+YAVtuvt
 8E0/Rx40DFXQfYB4hu3FoeGupksJ85ID07/0dzozWK0zqeMjo05IGoQHJoGDlTJy
 SUMhGPGXRReDKBJT3k1jUbAtHRK1WLukXTcOdSQNBXOuU3zDx9gYndLEDopoWu4R
 +rCrb38ekC5G/PtEPQsQrf+JXy+mwXOEv2k1OAFJ4jdh0oAZwdGTShWf0/431Kd0
 siSXCKJ2l1aIN3IonwTTF9S/6bEXCxGuTKfR7ANmZ3FVsIfQo9ej8N50iGC0JZ/b
 XCITkl8DlsM5o9R91wCsIuhO8+5SjtwjA3iMYAAfNLtekIrAniuwulf5nGFi0tA+
 in8srHJGUQZMaO57Caox
 =CQfQ
 -----END PGP SIGNATURE-----

Merge tag 'vfio-ccw-20170724' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into fixes

Pull vfio-ccw fix from Cornelia Huck:
"A bugfix in the ccw translation code."
2017-08-31 14:05:20 +02:00
Martin Schwidefsky
8ab867cb08 s390/mm: fix BUG_ON in crst_table_upgrade
A 31-bit compat process can force a BUG_ON in crst_table_upgrade
with specific, invalid mmap calls, e.g.

   mmap((void*) 0x7fff8000, 0x10000, 3, 32, -1, 0)

The arch_get_unmapped_area[_topdown] functions miss an if condition
in the decision to do a page table upgrade.

Fixes: 9b11c7912d ("s390/mm: simplify arch_get_unmapped_area[_topdown]")
Cc: <stable@vger.kernel.org>  # v4.12+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-08-31 14:03:21 +02:00
Martin Schwidefsky
0b89ede629 s390/mm: fork vs. 5 level page tabel
The mm->context.asce field of a new process is not set up correctly
in case of a fork with a 5 level page table.
Add the missing case to init_new_context().

Fixes: 1aea9b3f92 ("s390/mm: implement 5 level pages tables")
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-08-31 14:03:21 +02:00
Fenglin Wu
4e83ac4cfb pinctrl: qcom: spmi-gpio: Correct power_source range check
Power source selection in DIG_VIN_CTL is indexed from 0, in the range
check it shouldn't be equal to the total number of power sources.

Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-31 13:59:15 +02:00
Arvind Yadav
72c7c78e68 gpio: pl061: constify amba_id
amba_id are not supposed to change at runtime. All functions
working with const amba_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-31 13:57:57 +02:00
Bhumika Goyal
ae9d7f83a5 pinctrl: freescale: make mxs_regs const
Make these const as they are only stored in the const field of a
mxs_pinctrl_soc_data structure.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-31 13:57:01 +02:00
Mark Brown
05997302b7 Merge remote-tracking branch 'asoc/fix/rt5670' into asoc-fixes 2017-08-31 12:49:46 +01:00
David Hildenbrand
c95c895303 KVM: s390: vsie: cleanup mcck reinjection
The machine check information is part of the vsie_page.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170830160603.5452-4-david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-08-31 13:49:40 +02:00
David Hildenbrand
3dbf0205b1 KVM: s390: use WARN_ON_ONCE only for checking
Move the real logic that always has to be executed out of the
WARN_ON_ONCE.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170830160603.5452-3-david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-08-31 13:49:39 +02:00
David Hildenbrand
8149fc0772 KVM: s390: guestdbg: fix range check
Looks like the "overflowing" range check is wrong.

|=======b-------a=======|

addr >= a || addr <= b

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170830160603.5452-2-david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-08-31 13:49:39 +02:00
Ryan Lee
dea1105017 ASoC: max98927: Changed device property read function
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-31 12:46:08 +01:00
Ryan Lee
607f7777bf ASoC: max98927: Modified DAPM widget and map to enable/disable VI sense path
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-31 12:46:08 +01:00
Ryan Lee
f81991ddd0 ASoC: max98927: Added PM suspend and resume function
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-31 12:45:08 +01:00
Ryan Lee
848844b87a ASoC: max98927: Modified chip default register values
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-31 12:45:07 +01:00
Ryan Lee
01c6f1b5c8 ASoC: max98927: Added missing \n to end of dev_err messages
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-31 12:45:07 +01:00