Commit Graph

310 Commits

Author SHA1 Message Date
Alex Briskin b9d7adc45d staging: most: hdm_usb: Driver registration with module_driver macro
Register with module_driver macro instead of module_init/module_exit.

Signed-off-by: Alex Briskin <br.shurik@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-27 19:59:10 +02:00
Gustavo A. R. Silva a8e95f8a34 staging: most: hdm-dim2: fix error return code in dim2_probe()
platform_get_irq() returns an error code, but the dim2_hdm driver
ignores it and always returns -ENODEV. This is not correct and,
prevents -EPROBE_DEFER from being propagated properly.

Also, notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af

Print and propagate the return value of platform_get_irq on failure.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-18 15:57:17 -07:00
Arvind Yadav 2c73e5761d staging: most: hdm-dim2: constify platform_device_id
platform_device_id are not supposed to change at runtime. All functions
working with platform_device_id provided by <linux/platform_device.h>
work with const platform_device_id. So mark the non-const structs as
const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-18 15:57:16 -07:00
Arvind Yadav 27acb55764 staging: most: usb: constify usb_device_id
usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-18 15:57:16 -07:00
Linus Torvalds 5518b69b76 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Reasonably busy this cycle, but perhaps not as busy as in the 4.12
  merge window:

   1) Several optimizations for UDP processing under high load from
      Paolo Abeni.

   2) Support pacing internally in TCP when using the sch_fq packet
      scheduler for this is not practical. From Eric Dumazet.

   3) Support mutliple filter chains per qdisc, from Jiri Pirko.

   4) Move to 1ms TCP timestamp clock, from Eric Dumazet.

   5) Add batch dequeueing to vhost_net, from Jason Wang.

   6) Flesh out more completely SCTP checksum offload support, from
      Davide Caratti.

   7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
      Neira Ayuso, and Matthias Schiffer.

   8) Add devlink support to nfp driver, from Simon Horman.

   9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
      Prabhu.

  10) Add stack depth tracking to BPF verifier and use this information
      in the various eBPF JITs. From Alexei Starovoitov.

  11) Support XDP on qed device VFs, from Yuval Mintz.

  12) Introduce BPF PROG ID for better introspection of installed BPF
      programs. From Martin KaFai Lau.

  13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.

  14) For loads, allow narrower accesses in bpf verifier checking, from
      Yonghong Song.

  15) Support MIPS in the BPF selftests and samples infrastructure, the
      MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
      Daney.

  16) Support kernel based TLS, from Dave Watson and others.

  17) Remove completely DST garbage collection, from Wei Wang.

  18) Allow installing TCP MD5 rules using prefixes, from Ivan
      Delalande.

  19) Add XDP support to Intel i40e driver, from Björn Töpel

  20) Add support for TC flower offload in nfp driver, from Simon
      Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
      Kicinski, and Bert van Leeuwen.

  21) IPSEC offloading support in mlx5, from Ilan Tayari.

  22) Add HW PTP support to macb driver, from Rafal Ozieblo.

  23) Networking refcount_t conversions, From Elena Reshetova.

  24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
      for tuning the TCP sockopt settings of a group of applications,
      currently via CGROUPs"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
  net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
  dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
  cxgb4: Support for get_ts_info ethtool method
  cxgb4: Add PTP Hardware Clock (PHC) support
  cxgb4: time stamping interface for PTP
  nfp: default to chained metadata prepend format
  nfp: remove legacy MAC address lookup
  nfp: improve order of interfaces in breakout mode
  net: macb: remove extraneous return when MACB_EXT_DESC is defined
  bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
  bpf: fix return in load_bpf_file
  mpls: fix rtm policy in mpls_getroute
  net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
  net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
  ...
2017-07-05 12:31:59 -07:00
Andrey Shvetsov 4271eabb48 staging: most: net: hold used net device
This adds the dev_hold and dev_put calls to the functions
aim_resume_tx_channel, aim_rx_data and on_netinfo to postpone the
unregistration of the used net device.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-24 00:32:46 +08:00
Andrey Shvetsov 2338652c33 staging: most: net: protect consistency of the state
This introduces the mutex that protects the consistency between the
tx.linked, rx.linked and the presence of the net divice.

Additionally, this patch optimizes the setup of the ch->linked in the
function aim_probe_channel.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-24 00:32:46 +08:00
Andrey Shvetsov 606c217597 staging: most: net: make net device lifetime obvious
The function aim_probe_channel calls only one of the functions
alloc_netdev and register_netdev per run.

Correspondingly, the function aim_disconnect_channel calls only one of
the functions unregister_netdev and free_netdev per run.

This patch makes it obvious by using the 'else' part of the 'if'
statement.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-24 00:32:46 +08:00
Andrey Shvetsov 3c1746edd1 staging: most: net: remove redundant traces
This removes redundant netdev_info/pr_info.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-24 00:32:46 +08:00
Johannes Berg 59ae1d127a networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy()
some data into the new space, introduce skb_put_data() for
this.

An spatch similar to the one for skb_put_zero() converts many
of the places using it:

    @@
    identifier p, p2;
    expression len, skb, data;
    type t, t2;
    @@
    (
    -p = skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    |
    -p = (t)skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, len);
    |
    -memcpy(p, data, len);
    )

    @@
    type t, t2;
    identifier p, p2;
    expression skb, data;
    @@
    t *p;
    ...
    (
    -p = skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    |
    -p = (t *)skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, sizeof(*p));
    |
    -memcpy(p, data, sizeof(*p));
    )

    @@
    expression skb, len, data;
    @@
    -memcpy(skb_put(skb, len), data, len);
    +skb_put_data(skb, data, len);

(again, manually post-processed to retain some comments)

Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:37 -04:00
Andrey Shvetsov d2892ebc5b staging: most: dim2: replace function parameter with the expression
This replaces the function parameter sync_mfe with the expression
(ch_type == CAT_CT_VAL_SYNC) what is the same.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:10 +02:00
Andrey Shvetsov 648377cd21 staging: most: dim2: enable flow control for isoc channels
This patch enables the flow control feature for the isochronous channels
of the DIM2 macro.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:10 +02:00
Andrey Shvetsov 578bdec44c staging: most: allocate private net_dev_context with the alloc_netdev
This moves the allocation of the net_dev to the aim_probe_channel() and
uses the parameter sizeof_priv of the function alloc_netdev to reserve
the space for the struct net_dev_context.

As a side effect, the nd->dev always points to the existing net_dev.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:10 +02:00
Andrey Shvetsov d54516086d staging: most: net: remove redundant cleanup code
This removes redundant cleanup code that is executed anyway when the
most_deregister_aim() is called.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:10 +02:00
Andrey Shvetsov eec3546cb9 staging: most: use unsafe version of list traversing
The function get_net_dev_context does not remove elements of the list.
Hence, list traversing does not need to be secured.

This patch replaces list_for_each_entry_safe with the
list_for_each_entry.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:09 +02:00
Andrey Shvetsov d35bbfaa4a staging: most: remove dependency on networking-aim
The modules hdm-usb and hdm-dim2 depend on the module aim-network, because
they use the function most_deliver_netinfo that it exports.

To remove this dependency, this patch replaces the call of the function
most_deliver_netinfo with the call of the function that is the parameter
'on_netinfo' of the function request_netinfo.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:09 +02:00
Andrey Shvetsov 78a900205c staging: most: i2c: remove empty callback request_netinfo
Since the networking-aim checks the availability of the callback
request_netinfo, this patch removes the empty callback request_netinfo
from the i2c-hdm.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:09 +02:00
Andrey Shvetsov a4d98fac51 staging: most: check availability of the callback request_netinfo
Since not all HDMs implement the callback request_netinfo, this patch
adds checking of its availability.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:09 +02:00
Andrey Shvetsov 29c1035fee staging: most: net: add carrier information
This adds the carrier information for the network devices based on the
INIC controllers.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:09 +02:00
Andrey Shvetsov cf5b36b5d9 staging: most: net: use dormant state
This replaces the call of wait_for_completion in case of an invalid MAC
address in the function most_nd_open() with the dormant state of the
network device.

As a side effect, opening the network device cannot fail anymore.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:09 +02:00
Andrey Shvetsov a73470f202 staging: most: net: remove useless variable channels_opened
The function most_nd_stop is only called by successful return from the
function most_nd_open, so the channels_opened is always true in the
function most_nd_stop.

The functions aim_resume_tx_channel and aim_rx_data are only called
after successful most_start_channel in the function most_nd_open, so the
channels_opened is always true in the functions aim_resume_tx_channel
and aim_rx_data.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15 11:59:08 +02:00
Kees Cook 063246641d format-security: move static strings to const
While examining output from trial builds with -Wformat-security enabled,
many strings were found that should be defined as "const", or as a char
array instead of char pointer.  This makes some static analysis easier,
by producing fewer false positives.

As these are all trivial changes, it seemed best to put them all in a
single patch rather than chopping them up per maintainer.

Link: http://lkml.kernel.org/r/20170405214711.GA5711@beast
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Jes Sorensen <jes@trained-monkey.org>	[runner.c]
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Salil Mehta <salil.mehta@huawei.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Florian Westphal <fw@strlen.de>
Cc: Antonio Quartulli <a@unstable.cc>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Kejian Yan <yankejian@huawei.com>
Cc: Daode Huang <huangdaode@hisilicon.com>
Cc: Qianqian Xie <xieqianqian@huawei.com>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Christian Gromm <christian.gromm@microchip.com>
Cc: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Cc: Jason Litzinger <jlitzingerdev@gmail.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:14 -07:00
Linus Torvalds c6a677c6f3 Staging/IIO patches for 4.12-rc1
Here is the big staging tree update for 4.12-rc1.  And it's a big one,
 adding about 350k new lines of crap^Wcode, mostly all in a big dump of
 media drivers from Intel.  But there's other new drivers in here as
 well, yet-another-wifi driver, new IIO drivers, and a new crypto
 accelerator.  We also deleted a bunch of stuff, mostly in patch
 cleanups, but also the Android ION code has shrunk a lot, and the
 Android low memory killer driver was finally deleted, much to the
 celebration of the -mm developers.
 
 All of these have been in linux-next with a few build issues that will
 show up when you merge to your tree, I'll follow up with fixes for those
 after this gets merged.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big staging tree update for 4.12-rc1.

  It's a big one, adding about 350k new lines of crap^Wcode, mostly all
  in a big dump of media drivers from Intel. But there's other new
  drivers in here as well, yet-another-wifi driver, new IIO drivers, and
  a new crypto accelerator.

  We also deleted a bunch of stuff, mostly in patch cleanups, but also
  the Android ION code has shrunk a lot, and the Android low memory
  killer driver was finally deleted, much to the celebration of the -mm
  developers.

  All of these have been in linux-next with a few build issues that will
  show up when you merge to your tree"

Merge conflicts in the new rtl8723bs driver (due to the wifi changes
this merge window) handled as per linux-next, courtesy of Stephen
Rothwell.

* tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1182 commits)
  staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fd
  staging: ks7010: remove line continuations in quoted strings
  staging: vt6656: use tabs instead of spaces
  staging: android: ion: Fix unnecessary initialization of static variable
  staging: media: atomisp: fix range checking on clk_num
  staging: media: atomisp: fix misspelled word in comment
  staging: media: atomisp: kmap() can't fail
  staging: atomisp: remove #ifdef for runtime PM functions
  staging: atomisp: satm include directory is gone
  atomisp: remove some more unused files
  atomisp: remove hmm_load/store/clear indirections
  atomisp: kill off mmgr_free
  atomisp: clean up the hmm init/cleanup indirections
  atomisp: handle allocation calls before init in the hmm layer
  staging: fsl-dpaa2/eth: Add maintainer for Ethernet driver
  staging: fsl-dpaa2/eth: Add TODO file
  staging: fsl-dpaa2/eth: Add trace points
  staging: fsl-dpaa2/eth: Add driver specific stats
  staging: fsl-dpaa2/eth: Add ethtool support
  staging: fsl-dpaa2/eth: Add Freescale DPAA2 Ethernet driver
  ...
2017-05-05 18:16:23 -07:00
Dhananjay Balan f06ee95ce6 staging: most: aim-sound style fixess
Replace hardcoded function name with __func__

Signed-off-by: Dhananjay Balan <mail@dbalan.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-25 20:56:15 +02:00
Mauro Carvalho Chehab e1c3e6e1ca docs-rst: fix usb cross-references
As some USB documentation files got moved, adjust their
cross-references to their new place.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:41:29 -06:00
Christian Gromm b2e8aa52e2 staging: most: usb: pass correct register table
Inside the function store_value() the table of writable registers need to
be passed to function get_static_reg_addr() or else the correct register
address is never going to be found.

Reported-by: Alex Riesen <alexander.riesen@cetitec.com>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:40 +02:00
Andrey Shvetsov 5c13155d19 staging: most: usb: fix size overflow
Despite the user payload may not be bigger than (2**16 - 1) bytes, the
final packet size may be bigger because of the gap space needed for the
controller.

This patch removes the temporary variables of the type u16 that are used
to hold the offsets that may be bigger than 2**16 bytes.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:40 +02:00
Andrey Shvetsov f500192890 staging: most: usb: fix calculation of the extra_len
The final size of the buffer used for the streaming transfer consists of
the size for the user payload (buffer_size) and the size for the gaps
needed by the controller (extra_len).

The current implementation of the hdm_configure_channel() corrects the
buffer size down to the next appropriate for the hardware value, that is
the whole number of frames, but uses the old unaligned value to
calculate the extra_len.

Current patch fixes the described problem.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:40 +02:00
Andrey Shvetsov 2c4aaa1fff staging: most: destroy cdev when channel gets disconnected
When a channel is being removed while an application holds the
corresponding character device, this device is going to be destroyed only
after the application closes the file descriptor and releases character
device. In case the channel appears again before the application closes the
file descriptor it holds, the channel cannot be linked.

This patch changes the described behavior and destroys the character
device at the time the channel get disconnected from the AIM.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:39 +02:00
Andrey Shvetsov 5f788625cd staging: most: consolidate attributes for list of links
This patch replaces three temporary variables representing the
attributes to control the links between the AIMs and HDMs with an array
of three elements to keep the corresponding code compact.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:39 +02:00
Andrey Shvetsov add98da7da staging: most: core: separate property showing links
Currently an AIM has the following properties available to manage links:
  - write-only "remove_link" used to remove a link from a list
  - read/write "add_link" used to add a link to a list and display them

This patch transfers the read functionality of "add_link" to the new
read-only property "links" to build consistent set of properties to control
the list of links.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:39 +02:00
Andrey Shvetsov 7dc70220e9 staging: most: core: consolidate channel attributes
This patch replaces 13 temporary variables representing the attributes
to control the channel with an array of 13 elements to keep the
corresponding code compact.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:41:39 +02:00
Christian Gromm 1c74e3ab95 staging: most: core: make use of __ATTR_* macros
This patch replaces the proprietary macros with those provided by the
kernel.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:40:44 +02:00
Christian Gromm 4dd7c7c7b3 staging: most: core: fix function names
This patch fixes the names of the show/store functions to match the naming
convention.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:40:44 +02:00
Andrey Shvetsov bf676f4ce2 staging: most: fix comment of the function remove_link_store
This patch replaces the name store_remove_link by the remove_link_store
in the comment for the corresponding function.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:40:43 +02:00
Andrey Shvetsov 0b4194fd09 staging: most: fix comment of the function add_link_store
This patch replaces the name store_add_link by the add_link_store in the
comment for the corresponding function.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:40:43 +02:00
simran singhal bdc58e3bef staging: most: Using macro DIV_ROUND_UP
The macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /(d)).
It clarifies the divisor calculations. This occurence was detected using
the coccinelle script:

@@
expression e1;
expression e2;
@@
(
- ((e1) + e2 - 1) / (e2)
+ DIV_ROUND_UP(e1,e2)
|
- ((e1) + (e2 - 1)) / (e2)
+ DIV_ROUND_UP(e1,e2)
)

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-06 09:17:02 +01:00
stephen knipe 57e60850e7 staging: most: dim2_hdm octal permissions fix
This patch is to make the permissions sent to module_param be
explicitly octal in accordance with the linux style conventions. Issues
found by checkpatch.pl.

Signed-off-by: stephen knipe <steve.knipe@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-09 13:10:20 +01:00
Zhengyi Shen e495fac839 staging:most/hdm-i2c: Replace symbolic permissions with octal permissions
WARNING: Symbolic permissions 'S_IRUGO' are not preferred.
Consider using octal permissions '0444'.
This warning was detected by checkpatch.pl for hdm_i2c.c.

Signed-off-by: Zhengyi Shen <shenzhengyi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-05 11:41:38 +01:00
Sebastian Haas f3147b66a8 staging: most: hdm-usb: fix symbolic permissions warning
Replace symbolic permissions with their octect representation to fix
checkpatch warnings.

Signed-off-by: Sebastian Haas <sehaas@deebas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-27 09:40:56 +01:00
Eric Salem 5a10380bfb staging: most: hdm-usb: Fix mismatch between types used in sizeof operator
Fixed mismatch between types used in sizeof operator.

Signed-off-by: Eric Salem <ericsalem@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-16 18:08:56 +01:00
Ramiro Oliveira cbe50fc432 staging: most: change dma_buf variable to __le16
dma_buf is being cast to __le16 *, but it was defined as u16 *.
sparse reported this error as:
drivers/staging/most/hdm-usb/hdm_usb.c:158:16: warning: cast to restricted
__le16

This patch changes dma_buf from u16 to __le16.

Signed-off-by: Ramiro Oliveira <Ramiro.Oliveira@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-05 18:48:03 +01:00
Jason Litzinger 7e47629e7a staging: most: Eliminate usage of symbolic permissions
Fix checkpatch warnings regarding the use of symbolic permissions.

Where the MOST_CHANNEL_ATTR macro is used, convert to octal
permissions over symbolic.

Where _ATTR is used directly, replace with _ATTR_RW/_ATTR_WO and
update the show/store function names appropriately.

Signed-off-by: Jason Litzinger <jlitzingerdev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-29 21:57:14 +01:00
Christian Gromm 25e3854c83 staging: most: hdm-usb: add comment
This patch adds a comment to function hdm_configure_channel() to clarify
its execution paths.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-30 11:09:02 -04:00
Andrey Shvetsov e33269f60a staging: most: hdm-usb: introduce synchronization function
This patch introduces the function start_sync_ep() and relocates the
triggers for synchronization to this function.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-27 15:12:09 +02:00
Andrey Shvetsov 7c23baa90d staging: most: hdm-usb: do h/w specific synchronization at configuration time
This patch puts the synchronization procedure trigger for asynchronous
channels into the function hdm_configure_channel. Likewise, it removes
triggering of hardware specific synchronization for other channel types
from the probe function as it is not required.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-27 15:12:08 +02:00
Andrey Shvetsov 1e80e19ce9 staging: most: aim-networking: keep channels closed if ndo_open fails
This patch stops all started channels whenever the function most_nd_open
returns an error. Additionally, it renames variable wait_res to ret for
the consistency.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-27 15:12:08 +02:00
Andrey Shvetsov 3a542007fd staging: most: hdm-usb: fix mbo buffer leak
This patch fixes an MBO leak by replacing the proprietary
free_anchored_buffers() function with the usb_kill_anchored_urbs() function
of the USB subsystem and guarantees that the mbo->complete() completion
function is being called for each URB.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-16 10:25:14 +02:00
Andrey Shvetsov 02245b6077 staging: most: hdm-dim2: remove tracing of mac address
This patch removes tracing of the MAC address from the DIM2 HDM as it is
already done in the networking AIM.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-16 10:25:13 +02:00
Andrey Shvetsov f28e6cd3ac staging: most: hdm-usb: remove filtering of networking state
In case the networking interface goes down and up again, the USB HDM does
not report the state the MOST networking interface controller is in. This
might lead to nonfunctional network.

Since the networking AIM already takes care of hardware address checking
and tracing it can be removed from the HDM USB, which is what this patch is
doing.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-16 10:25:13 +02:00