Commit Graph

153 Commits

Author SHA1 Message Date
Fabian Frederick 2f29fed3f8 net: rfkill: kernel-doc warning fixes
s/state/blocked

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-08 15:24:15 -04:00
Loic Poulain fa5c107cc8 net: rfkill: gpio: Fix clock status
Clock is disabled when the device is blocked.
So, clock_enabled is the logical negation of "blocked".

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-22 16:02:15 -04:00
Marcel Holtmann dda3b191eb net: rfkill: gpio: Enable module auto-loading for ACPI based switches
For the ACPI based switches the MODULE_DEVICE_TABLE is missing to
export the entries for module auto-loading.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-16 16:09:01 -04:00
Mika Westerberg fb70118c0e net: rfkill: gpio: Add more Broadcom bluetooth ACPI IDs
This adds one more ACPI ID of a Broadcom bluetooth chip.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-25 15:39:23 -04:00
John W. Linville 40a10fd740 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2014-05-22 13:58:36 -04:00
Loic Poulain 771bb3ddc2 rfkill-gpio: Use gpio cansleep version
If gpio controller requires waiting for read and write
GPIO values, then we have to use the gpio cansleep api.
Fix the rfkill_gpio_set_power which calls only the
nonsleep version (causing kernel warning).
There is no problem to use the cansleep version here
because we are not in IRQ handler or similar context
(cf rfkill_set_block).

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-07 13:20:59 +02:00
Heikki Krogerus 781d4e0fb7 net: rfkill: gpio: hard-code the gpio names
There is no need to dynamically generate the names. This
will fix a static checker warning..

net/rfkill/rfkill-gpio.c:144 rfkill_gpio_probe()
    warn: variable dereferenced before check 'rfkill->name'

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-11 09:29:22 +02:00
Heikki Krogerus 41d09df1e0 net: rfkill: gpio: add ACPI IDs for a Broadcom bluetooth chip
This adds ACPI IDs for Broadcom bluetooth chip BCM43241 used
on various Baytrail based boards such as Lenovo Miix 2 and
Asus Transformer Book T100TA.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-11 09:29:21 +02:00
Heikki Krogerus 04f1b47cd7 net: rfkill: gpio: add ACPI ID for GPS module on Lenovo Miix2
On Lenovo Miix 2 8", BCM4752 is renamed LNV4752.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-11 09:29:21 +02:00
Heikki Krogerus 848ef58695 net: rfkill: gpio: remove unused and obsolete platform parameters
After upgrading to descriptor based gpios, the gpio numbers
are not used anymore. The power_clk_name and the platform
specific setup and close hooks are not used by anybody, and
we should not encourage use of such things, so removing them.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-11 09:29:16 +02:00
Shaibal Dutta 67235cbca4 net: rfkill: move poll work to power efficient workqueue
This patch moves the rfkill poll_work to the power efficient workqueue.
This work does not have to be bound to the CPU that scheduled it, hence
the selection of CPU that executes it would be left to the scheduler.
Net result is that CPU idle times would be extended, resulting in power
savings.

This behaviour is enabled when CONFIG_WQ_POWER_EFFICIENT is selected.

Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Shaibal Dutta <shaibal.dutta@broadcom.com>
[zoran.markovic@linaro.org: Rebased to latest kernel, added commit message.
Fixed workqueue selection after suspend/resume cycle.]
Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-02-04 21:58:16 +01:00
Linus Torvalds 4ba9920e5e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) BPF debugger and asm tool by Daniel Borkmann.

 2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann.

 3) Correct reciprocal_divide and update users, from Hannes Frederic
    Sowa and Daniel Borkmann.

 4) Currently we only have a "set" operation for the hw timestamp socket
    ioctl, add a "get" operation to match.  From Ben Hutchings.

 5) Add better trace events for debugging driver datapath problems, also
    from Ben Hutchings.

 6) Implement auto corking in TCP, from Eric Dumazet.  Basically, if we
    have a small send and a previous packet is already in the qdisc or
    device queue, defer until TX completion or we get more data.

 7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko.

 8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel
    Borkmann.

 9) Share IP header compression code between Bluetooth and IEEE802154
    layers, from Jukka Rissanen.

10) Fix ipv6 router reachability probing, from Jiri Benc.

11) Allow packets to be captured on macvtap devices, from Vlad Yasevich.

12) Support tunneling in GRO layer, from Jerry Chu.

13) Allow bonding to be configured fully using netlink, from Scott
    Feldman.

14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can
    already get the TCI.  From Atzm Watanabe.

15) New "Heavy Hitter" qdisc, from Terry Lam.

16) Significantly improve the IPSEC support in pktgen, from Fan Du.

17) Allow ipv4 tunnels to cache routes, just like sockets.  From Tom
    Herbert.

18) Add Proportional Integral Enhanced packet scheduler, from Vijay
    Subramanian.

19) Allow openvswitch to mmap'd netlink, from Thomas Graf.

20) Key TCP metrics blobs also by source address, not just destination
    address.  From Christoph Paasch.

21) Support 10G in generic phylib.  From Andy Fleming.

22) Try to short-circuit GRO flow compares using device provided RX
    hash, if provided.  From Tom Herbert.

The wireless and netfilter folks have been busy little bees too.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits)
  net/cxgb4: Fix referencing freed adapter
  ipv6: reallocate addrconf router for ipv6 address when lo device up
  fib_frontend: fix possible NULL pointer dereference
  rtnetlink: remove IFLA_BOND_SLAVE definition
  rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info
  qlcnic: update version to 5.3.55
  qlcnic: Enhance logic to calculate msix vectors.
  qlcnic: Refactor interrupt coalescing code for all adapters.
  qlcnic: Update poll controller code path
  qlcnic: Interrupt code cleanup
  qlcnic: Enhance Tx timeout debugging.
  qlcnic: Use bool for rx_mac_learn.
  bonding: fix u64 division
  rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC
  sfc: Use the correct maximum TX DMA ring size for SFC9100
  Add Shradha Shah as the sfc driver maintainer.
  net/vxlan: Share RX skb de-marking and checksum checks with ovs
  tulip: cleanup by using ARRAY_SIZE()
  ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
  net/cxgb4: Don't retrieve stats during recovery
  ...
2014-01-25 11:17:34 -08:00
Heikki Krogerus 2111cad655 net: rfkill: gpio: convert to descriptor-based GPIO interface
Convert to the safer gpiod_* family of API functions.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-07 18:45:20 +01:00
Jeff Kirsher 8232f1f3d0 rfkill: Fix FSF address in file headers
Several files refer to an old address for the Free Software Foundation
in the file header comment.  Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.

CC: linux-wireless@vger.kernel.org
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-11 10:56:21 -05:00
Heikki Krogerus ef91ffaa03 net: rfkill: gpio: add ACPI support
Including ACPI ID for Broadcom GPS receiver BCM4752.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-28 15:05:25 +01:00
Heikki Krogerus 262c91ee5e net: rfkill: gpio: prepare for DT and ACPI support
This will add the relevant values like the gpios and the
type in rfkill_gpio_platform_data to the rfkill_gpio_data
structure. It will allow those values to be easily picked
from DT and ACPI tables later.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-28 15:05:25 +01:00
Heikki Krogerus 0be81727a4 net: rfkill: gpio: spinlock-safe GPIO access
This sets the direction of the gpio once when it's requested,
and uses the spinlock-safe gpio_set_state() to change the
state.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-28 15:05:24 +01:00
Heikki Krogerus f02ae59b12 net: rfkill: gpio: clean up clock handling
Use a simple flag to see the state of the clock, and make
the clock available even without a name. Also, get rid of
HAVE_CLK dependency.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-28 15:05:24 +01:00
Heikki Krogerus 5e7ca3937f net: rfkill: gpio: convert to resource managed allocation
And remove now unneeded resource freeing.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-28 15:05:23 +01:00
Linus Torvalds cc998ff881 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:
 "Noteworthy changes this time around:

   1) Multicast rejoin support for team driver, from Jiri Pirko.

   2) Centralize and simplify TCP RTT measurement handling in order to
      reduce the impact of bad RTO seeding from SYN/ACKs.  Also, when
      both timestamps and local RTT measurements are available prefer
      the later because there are broken middleware devices which
      scramble the timestamp.

      From Yuchung Cheng.

   3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel
      memory consumed to queue up unsend user data.  From Eric Dumazet.

   4) Add a "physical port ID" abstraction for network devices, from
      Jiri Pirko.

   5) Add a "suppress" operation to influence fib_rules lookups, from
      Stefan Tomanek.

   6) Add a networking development FAQ, from Paul Gortmaker.

   7) Extend the information provided by tcp_probe and add ipv6 support,
      from Daniel Borkmann.

   8) Use RCU locking more extensively in openvswitch data paths, from
      Pravin B Shelar.

   9) Add SCTP support to openvswitch, from Joe Stringer.

  10) Add EF10 chip support to SFC driver, from Ben Hutchings.

  11) Add new SYNPROXY netfilter target, from Patrick McHardy.

  12) Compute a rate approximation for sending in TCP sockets, and use
      this to more intelligently coalesce TSO frames.  Furthermore, add
      a new packet scheduler which takes advantage of this estimate when
      available.  From Eric Dumazet.

  13) Allow AF_PACKET fanouts with random selection, from Daniel
      Borkmann.

  14) Add ipv6 support to vxlan driver, from Cong Wang"

Resolved conflicts as per discussion.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits)
  openvswitch: Fix alignment of struct sw_flow_key.
  netfilter: Fix build errors with xt_socket.c
  tcp: Add missing braces to do_tcp_setsockopt
  caif: Add missing braces to multiline if in cfctrl_linkup_request
  bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize
  vxlan: Fix kernel panic on device delete.
  net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls
  net: mvneta: properly disable HW PHY polling and ensure adjust_link() works
  icplus: Use netif_running to determine device state
  ethernet/arc/arc_emac: Fix huge delays in large file copies
  tuntap: orphan frags before trying to set tx timestamp
  tuntap: purge socket error queue on detach
  qlcnic: use standard NAPI weights
  ipv6:introduce function to find route for redirect
  bnx2x: VF RSS support - VF side
  bnx2x: VF RSS support - PF side
  vxlan: Notify drivers for listening UDP port changes
  net: usbnet: update addr_assign_type if appropriate
  driver/net: enic: update enic maintainers and driver
  driver/net: enic: Exposing symbols for Cisco's low latency driver
  ...
2013-09-05 14:54:29 -07:00
Luis Henriques dee08ab83d net: rfkill: Do not ignore errors from regulator_enable()
Function regulator_enable() may return an error that has to be checked.
This patch changes function rfkill_regulator_set_block() so that it checks
for the return code.  Also, rfkill_data->reg_enabled is set to 'true' only
if there is no error.

This fixes the following compilation warning:

net/rfkill/rfkill-regulator.c:43:20: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]

Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-15 18:17:05 +02:00
Greg Kroah-Hartman e49df67df1 net: rfkill: convert class code to use dev_groups
The dev_attrs field of struct class is going away soon, dev_groups
should be used instead.  This converts the rfkill class code to use the
correct field.

Cc: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-25 16:34:40 -07:00
John W. Linville 6475cb05ee Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-04-22 14:58:14 -04:00
Wei Yongjun 06f95e66de rfkill: fix error return code in rfkill_gpio_probe()
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
[fix some indentation on the way]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-22 15:42:18 +02:00
Samuel Ortiz 44b3decb41 rfkill: Add NFC to the list of supported radios
And return the proper string for it.

Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-12 16:54:38 +02:00
Sachin Kamat 9fed3096d7 net: rfkill: Fix sparse warning in rfkill-regulator.c
'rfkill_regulator_ops' is used only in this file. Hence make it static.
Silences the following warning:
net/rfkill/rfkill-regulator.c:54:19: warning:
symbol 'rfkill_regulator_ops' was not declared. Should it be static?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:35:41 +01:00
Tejun Heo ba0c96cd9a rfkill: don't use [delayed_]work_pending()
There's no need to test whether a (delayed) work item in pending
before queueing, flushing or cancelling it.  Most uses are unnecessary
and quite a few of them are buggy.

Remove unnecessary pending tests from rfkill.  Only compile
tested.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
2012-12-28 13:40:16 -08:00
Linus Torvalds a2013a13e6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial branch from Jiri Kosina:
 "Usual stuff -- comment/printk typo fixes, documentation updates, dead
  code elimination."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  HOWTO: fix double words typo
  x86 mtrr: fix comment typo in mtrr_bp_init
  propagate name change to comments in kernel source
  doc: Update the name of profiling based on sysfs
  treewide: Fix typos in various drivers
  treewide: Fix typos in various Kconfig
  wireless: mwifiex: Fix typo in wireless/mwifiex driver
  messages: i2o: Fix typo in messages/i2o
  scripts/kernel-doc: check that non-void fcts describe their return value
  Kernel-doc: Convention: Use a "Return" section to describe return values
  radeon: Fix typo and copy/paste error in comments
  doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
  various: Fix spelling of "asynchronous" in comments.
  Fix misspellings of "whether" in comments.
  eisa: Fix spelling of "asynchronous".
  various: Fix spelling of "registered" in comments.
  doc: fix quite a few typos within Documentation
  target: iscsi: fix comment typos in target/iscsi drivers
  treewide: fix typo of "suport" in various comments and Kconfig
  treewide: fix typo of "suppport" in various comments
  ...
2012-12-13 12:00:02 -08:00
Bill Pemberton 9e2b29d0d6 rfkill: remove __dev* attributes
CONFIG_HOTPLUG is going away as an option.  As result the __dev*
markings will be going away.

Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-06 15:04:55 -05:00
Jiri Kosina 3bd7bf1f0f Merge branch 'master' into for-next
Sync up with Linus' tree to be able to apply Cesar's patch
against newer version of the code.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-28 19:29:19 +01:00
Alan Cox 6f7c962c0b rfkill: error cannot be set here so simplify
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-25 17:58:41 +02:00
Linus Torvalds aecdc33e11 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:

 1) GRE now works over ipv6, from Dmitry Kozlov.

 2) Make SCTP more network namespace aware, from Eric Biederman.

 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko.

 4) Make openvswitch network namespace aware, from Pravin B Shelar.

 5) IPV6 NAT implementation, from Patrick McHardy.

 6) Server side support for TCP Fast Open, from Jerry Chu and others.

 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel
    Borkmann.

 8) Increate the loopback default MTU to 64K, from Eric Dumazet.

 9) Use a per-task rather than per-socket page fragment allocator for
    outgoing networking traffic.  This benefits processes that have very
    many mostly idle sockets, which is quite common.

    From Eric Dumazet.

10) Use up to 32K for page fragment allocations, with fallbacks to
    smaller sizes when higher order page allocations fail.  Benefits are
    a) less segments for driver to process b) less calls to page
    allocator c) less waste of space.

    From Eric Dumazet.

11) Allow GRO to be used on GRE tunnels, from Eric Dumazet.

12) VXLAN device driver, one way to handle VLAN issues such as the
    limitation of 4096 VLAN IDs yet still have some level of isolation.
    From Stephen Hemminger.

13) As usual there is a large boatload of driver changes, with the scale
    perhaps tilted towards the wireless side this time around.

Fix up various fairly trivial conflicts, mostly caused by the user
namespace changes.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits)
  hyperv: Add buffer for extended info after the RNDIS response message.
  hyperv: Report actual status in receive completion packet
  hyperv: Remove extra allocated space for recv_pkt_list elements
  hyperv: Fix page buffer handling in rndis_filter_send_request()
  hyperv: Fix the missing return value in rndis_filter_set_packet_filter()
  hyperv: Fix the max_xfer_size in RNDIS initialization
  vxlan: put UDP socket in correct namespace
  vxlan: Depend on CONFIG_INET
  sfc: Fix the reported priorities of different filter types
  sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP
  sfc: Fix loopback self-test with separate_tx_channels=1
  sfc: Fix MCDI structure field lookup
  sfc: Add parentheses around use of bitfield macro arguments
  sfc: Fix null function pointer in efx_sriov_channel_type
  vxlan: virtual extensible lan
  igmp: export symbol ip_mc_leave_group
  netlink: add attributes to fdb interface
  tg3: unconditionally select HWMON support when tg3 is enabled.
  Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT"
  gre: fix sparse warning
  ...
2012-10-02 13:38:27 -07:00
Vitaly Wool eab48345c2 rfkill: prevent unnecessary event generation
Prevent unnecessary rfkill event generation when the state has
not actually changed. These events have to be delivered to
relevant userspace processes, causing these processes to wake
up and do something while they could as well have slept. This
obviously results in more CPU usage, longer time-to-sleep-again
and therefore higher power consumption.

Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Mykyta Iziumtsev <nikita.izyumtsev@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-24 10:35:54 +02:00
AceLan Kao 06d7de831d Revert "rfkill: remove dead code"
This reverts commit 2e48928d8a.

Those functions are needed and should not be removed, or
there is no way to set the rfkill led trigger name.

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-21 20:50:25 +02:00
Tejun Heo 41f63c5359 workqueue: use mod_delayed_work() instead of cancel + queue
Convert delayed_work users doing cancel_delayed_work() followed by
queue_delayed_work() to mod_delayed_work().

Most conversions are straight-forward.  Ones worth mentioning are,

* drivers/edac/edac_mc.c: edac_mc_workq_setup() converted to always
  use mod_delayed_work() and cancel loop in
  edac_mc_reset_delay_period() is dropped.

* drivers/platform/x86/thinkpad_acpi.c: No need to remember whether
  watchdog is active or not.  @fan_watchdog_active and related code
  dropped.

* drivers/power/charger-manager.c: Seemingly a lot of
  delayed_work_pending() abuse going on here.
  [delayed_]work_pending() are unsynchronized and racy when used like
  this.  I converted one instance in fullbatt_handler().  Please
  conver the rest so that it invokes workqueue APIs for the intended
  target state rather than trying to game work item pending state
  transitions.  e.g. if timer should be modified - call
  mod_delayed_work(), canceled - call cancel_delayed_work[_sync]().

* drivers/thermal/thermal_sys.c: thermal_zone_device_set_polling()
  simplified.  Note that round_jiffies() calls in this function are
  meaningless.  round_jiffies() work on absolute jiffies not delta
  delay used by delayed_work.

v2: Tomi pointed out that __cancel_delayed_work() users can't be
    safely converted to mod_delayed_work().  They could be calling it
    from irq context and if that happens while delayed_work_timer_fn()
    is running, it could deadlock.  __cancel_delayed_work() users are
    dropped.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Roland Dreier <roland@kernel.org>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <len.brown@intel.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
2012-08-13 16:27:37 -07:00
Alex Hung 27e49ca955 rfkill: Add the capability to switch all devices of all type in __rfkill_switch_all().
__rfkill_switch_all() switches the state of devices of a given type; however,
it does not switch devices of all type (RFKILL_TYPE_ALL). As a result, it
ignores the keycode "KEY_RFKILL" from another module, i.e. eeepc-wmi.

This fix is to make __rfkill_switch_all() to be able to switch not only
devices of a given type but also all devices.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-06 15:18:17 -04:00
Paul Gortmaker 51990e8254 device.h: cleanup users outside of linux/include (C files)
For files that are actively using linux/device.h, make sure
that they call it out.  This will allow us to clean up some
of the implicit uses of linux/device.h within include/*
without introducing build regressions.

Yes, this was created by "cheating" -- i.e. the headers were
cleaned up, and then the fallout was found and fixed, and then
the two commits were reordered.  This ensures we don't introduce
build regressions into the git history.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-03-11 14:27:37 -04:00
John W. Linville 1032c736e8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/b43legacy/dma.c
2012-01-05 10:13:24 -05:00
Julia Lawall 841f1d92fb net/rfkill/rfkill-gpio.c: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.
The label fail_alloc already does this for rfkill.

A simplified version of the semantic match that finds the problem is as
follows: (http://coccinelle.lip6.fr)

// <smpl>
@r exists@
local idexpression x;
statement S;
identifier f1;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
x->f1
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04 14:30:46 -05:00
Rusty Russell 3db1cd5c05 net: fix assignment of 0/1 to bool variables.
DaveM said:
   Please, this kind of stuff rots forever and not using bool properly
   drives me crazy.

Joe Perches <joe@perches.com> gave me the spatch script:

	@@
	bool b;
	@@
	-b = 0
	+b = false
	@@
	bool b;
	@@
	-b = 1
	+b = true

I merely installed coccinelle, read the documentation and took credit.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-19 22:27:29 -05:00
Axel Lin 98ef55f66f net: rfkill: convert net/rfkill/* to use module_platform_driver()
This patch converts the drivers in net/rfkill/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Antonio Ospite <ospite@studenti.unina.it>
Cc: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30 15:08:27 -05:00
John W. Linville 515db09338 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Conflicts:
	drivers/net/wireless/iwlegacy/iwl-debugfs.c
	drivers/net/wireless/iwlegacy/iwl-rx.c
	drivers/net/wireless/iwlegacy/iwl-scan.c
	drivers/net/wireless/iwlegacy/iwl-tx.c
	include/net/bluetooth/bluetooth.h
2011-11-22 14:05:46 -05:00
Julia Lawall 1bac92cac1 net/rfkill/core.c: use kstrtoul, etc
Use kstrtoul, etc instead of the now deprecated strict_strtoul, etc.

A semantic patch rule for the kstrtoul case is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression a,b;
{int,long} *c;
@@

-strict_strtoul
+kstrtoul
 (a,b,c)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 16:14:10 -05:00
Paul Gortmaker d9b9384215 net: add moduleparam.h for users of module_param/MODULE_PARM_DESC
These files were getting access to these two via the implicit
presence of module.h everywhere.  They aren't modules, so they
don't need the full module.h inclusion though.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:30:29 -04:00
Sangwook Lee e209c5a7ed net:rfkill: add a gpio setup function into GPIO rfkill
Add a gpio setup function which gives a chance to set up
platform specific configuration such as pin multiplexing,
input/output direction at the runtime or booting time.

Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-03 15:19:19 -04:00
Mohammed Shafi Shajakhan 6be19ccd69 rfkill: properly assign a boolean type
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19 16:10:14 -04:00
Joe Perches 246c081204 rfkill: Remove unnecessary OOM logging messages
Removing unnecessary messages saves code and text.

Site specific OOM messages are duplications of a generic MM
out of memory message and aren't really useful, so just
delete them.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-13 15:45:02 -04:00
Rhyland Klein 7176ba23f8 net: rfkill: add generic gpio rfkill driver
This adds a new generic gpio rfkill driver to support rfkill switches
which are controlled by gpios. The driver also supports passing in
data about the clock for the radio, so that when rfkill is blocking,
it can disable the clock.

This driver assumes platform data is passed from the board files to
configure it for specific devices.

Original-patch-by: Anantha Idapalapati <aidapalapati@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-19 13:53:54 -04:00
Julia Lawall bd2281b85d net/rfkill/core.c: Avoid leaving freed data in a list
The list_for_each_entry loop can fail, in which case the list element is
not removed from the list rfkill_fds.  Since this list is not accessed by
the loop, the addition of &data->list into the list is just moved after the
loop.

The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E,E1,E2;
identifier l;
@@

*list_add(&E->l,E1);
... when != E1
    when != list_del(&E->l)
    when != list_del_init(&E->l)
    when != E = E2
*kfree(E);// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-16 14:10:42 -04:00
Antonio Ospite cbc6a6ed09 rfkill: Regulator consumer driver for rfkill
Add a regulator consumer driver for rfkill to enable controlling radio
transmitters connected to voltage regulators using the regulator
framework.

A new "vrfkill" virtual supply is provided to use in platform code.

Signed-off-by: Guiming Zhuo <gmzhuo@gmail.com>
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19 15:38:02 -04:00