openwrt/staging/blogic.git
10 years agoat86rf230: improve receive handling
Alexander Aring [Mon, 27 Oct 2014 16:13:42 +0000 (17:13 +0100)]
at86rf230: improve receive handling

Current behaviour it to copy the frame inclusive CRC into a skb, then
remove the CRC from the skb. This patch optimizes this by not copying
the CRC at the first place.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: use ieee802154_is_valid_psdu_len helper
Alexander Aring [Mon, 27 Oct 2014 16:13:41 +0000 (17:13 +0100)]
at86rf230: use ieee802154_is_valid_psdu_len helper

This patch adds the ieee802154_is_valid_psdu_len function to validate
the psdu length. If the psdu length is invalid we use the maximum
payload to receive also corrupted frames in monitor mode.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: add valid psdu length helper
Alexander Aring [Mon, 27 Oct 2014 16:13:40 +0000 (17:13 +0100)]
ieee802154: add valid psdu length helper

This patch adds a generic valid psdu length check function helper. This
is useful to check the length field after receiving. For example the
at86rf231 doesn't filter invalid psdu length. Sometimes the CRC can also
be correct. If we get the lqi value with an invalid frame length the
kernel may crash because we dereference an invalid pointer in the
receive buffer.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: move rcu locking
Alexander Aring [Mon, 27 Oct 2014 16:13:39 +0000 (17:13 +0100)]
mac802154: rx: move rcu locking

Instead of twice lock and unlock mechanism this patch hold these locks
only once at one position.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: move skb_reset_mac_header
Alexander Aring [Mon, 27 Oct 2014 16:13:38 +0000 (17:13 +0100)]
mac802154: rx: move skb_reset_mac_header

This patch moves the skb_reset_mac_header call before frame parsing
while wpan rx and before monitor deliver functionality.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: add monitor pkt_type information
Alexander Aring [Mon, 27 Oct 2014 16:13:37 +0000 (17:13 +0100)]
mac802154: rx: add monitor pkt_type information

This patch adds a PACKET_OTHERHOST setting when a monitor interface
receives a skb. All receiving skb's to the monitor interface should
be PACKET_OTHERHOST.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: add CHECKSUM_UNNECESSARY
Alexander Aring [Mon, 27 Oct 2014 16:13:36 +0000 (17:13 +0100)]
mac802154: rx: add CHECKSUM_UNNECESSARY

This patch adds CHECKSUM_UNNECESSARY to skb->ip_summed before delivery.
There exist no transceiver with IP checksum functionality.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: move skb->protocol setting
Alexander Aring [Mon, 27 Oct 2014 16:13:35 +0000 (17:13 +0100)]
mac802154: rx: move skb->protocol setting

This patch moves the skb->protocol setting to the position when it's
needed. It's only needed when frame parsing was successful.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: rename remove mac802154_subif_rx
Alexander Aring [Mon, 27 Oct 2014 16:13:34 +0000 (17:13 +0100)]
mac802154: rx: rename remove mac802154_subif_rx

This patch removes the mac802154_subif_rx function and do the necessary
calls inside of ieee802154_rx function. The ieee802154_rx is small
enough to move the functionality inside this function.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: remove monitor receive while xmit
Alexander Aring [Mon, 27 Oct 2014 16:13:33 +0000 (17:13 +0100)]
mac802154: tx: remove monitor receive while xmit

This removes the call of monitor receive funktion when any interface
type call xmit. There exist no such use case that a monitor interface
should receive the actual sending frame. One use case could be that a
wpan interface and monitor interface could be running at the same time
on one phy. Then the monitor interface receives the wpan frames also.
Furthermore we adding support for promiscous mode setting. With
promiscous mode setting we can't run a wpan and monitor interface at the
same time.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: move receive handling into rx.c
Alexander Aring [Mon, 27 Oct 2014 16:13:32 +0000 (17:13 +0100)]
mac802154: rx: move receive handling into rx.c

This patch removes all relevant receiving functions inclusive frame
parsing into rx file. Like mac80211 we should implement the complete
receive handling and parsing in this file.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: document ieee802154_rx() context requirement
Alexander Aring [Mon, 27 Oct 2014 16:13:31 +0000 (17:13 +0100)]
mac802154: rx: document ieee802154_rx() context requirement

This patch is similar like d20ef63d32461332958661df73e21c0ca42601b0
("mac80211: document ieee80211_rx() context requirement"). The
netif_receive_skb call requires with softirqs disabled. This patch
adds a warning if softirqs are pending while calling ieee802154_rx.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rx: use tasklet instead workqueue
Alexander Aring [Mon, 27 Oct 2014 16:13:30 +0000 (17:13 +0100)]
mac802154: rx: use tasklet instead workqueue

Tasklets have much less overhead than workqueues. This patch also
removes the heap allocation for the worker on receiving path.
Like mac80211 we should prefer use a tasklet here instead a workqueue to
getting fast out of interrupt context when ieee802154_rx_irqsafe is
called by driver. Like wireless inside the tasklet context we should
call netif_receive_skb instead netif_rx_ni anymore.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: drivers: use dev_alloc_skb
Alexander Aring [Mon, 27 Oct 2014 16:13:29 +0000 (17:13 +0100)]
ieee802154: drivers: use dev_alloc_skb

This patch change the allocation of skb inside the ieee802154 driver
layer to dev_alloc_skb. This changes also the gfp mask to GFP_ATOMIC
which is needed for upcomming change that the receiving is done by a
tasklet and not a workqueue anymore.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: use put_unaligned_le16 for copy crc
Alexander Aring [Mon, 27 Oct 2014 16:13:28 +0000 (17:13 +0100)]
mac802154: tx: use put_unaligned_le16 for copy crc

This patch replaces the memcpy with a put_unaligned_le16. The placement
of crc inside of PSDU can also be unaligned. With memcpy this can fail
on some architectures.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: 6lowpan: rename process_data and lowpan_process_data
Martin Townsend [Thu, 23 Oct 2014 14:40:56 +0000 (15:40 +0100)]
ieee802154: 6lowpan: rename process_data and lowpan_process_data

As we have decouple decompression from data delivery we can now rename all
occurences of process_data in receive path.

Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agobluetooth:6lowpan: use consume_skb when packet processed successfully
Martin Townsend [Thu, 23 Oct 2014 14:40:55 +0000 (15:40 +0100)]
bluetooth:6lowpan: use consume_skb when packet processed successfully

Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years ago6lowpan: fix process_data return values
Martin Townsend [Thu, 23 Oct 2014 14:40:54 +0000 (15:40 +0100)]
6lowpan: fix process_data return values

As process_data now returns just error codes fix up the calls to this
function to only drop the skb if an error code is returned.

Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years ago6lowpan: remove skb_deliver from IPHC
Martin Townsend [Thu, 23 Oct 2014 14:40:53 +0000 (15:40 +0100)]
6lowpan: remove skb_deliver from IPHC

Separating skb delivery from decompression ensures that we can support further
decompression schemes and removes the mixed return value of error codes with
NET_RX_FOO.

Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: make worker information static
Alexander Aring [Sun, 26 Oct 2014 17:15:34 +0000 (18:15 +0100)]
mac802154: tx: make worker information static

This patch moves the worker information struct out of skb control block.
Instead control block we declare it static inside of tx.c file. We can do
that, because the worker can't be used twice at the same time. It's
protected by stop and wake netdev queue.

This patch fix an issue that the "struct ieee802154_xmit_cb" doesn't fit
into the skb control block on some kernel configuartion reported by
kbuild test robot.

It was introduced by commit fe24371d6645b766c59ec664c59d0a9c310ad455
("mac802154: tx: remove kmalloc in xmit hotpath").

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: asynchronous xmit handling
Alexander Aring [Sun, 26 Oct 2014 08:37:15 +0000 (09:37 +0100)]
at86rf230: asynchronous xmit handling

This patch converts the sync xmit handling into an async xmit handling. The
driver was already prepared for this step, all other drivers need more
work to implement a xmit_async function.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: add comment at sync xmit callback
Alexander Aring [Sun, 26 Oct 2014 08:37:14 +0000 (09:37 +0100)]
mac802154: tx: add comment at sync xmit callback

This patch adds a warning that xmit_sync callback is deprecated and
should be removed soon. The 802.15.4 subsystem will not accept synced
drivers anymore.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: change naming convention
Alexander Aring [Sun, 26 Oct 2014 08:37:13 +0000 (09:37 +0100)]
mac802154: tx: change naming convention

This patch changes the naming convention of the tx functions like
mac80211. Just with an 802154 instead 80211 inside the name.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: move stats tx increment
Alexander Aring [Sun, 26 Oct 2014 08:37:12 +0000 (09:37 +0100)]
mac802154: tx: move stats tx increment

This patch moves the stats increment of successful transmitted packets
in the right place when the skb was really successful transmitted.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: cleanup crc calculation
Alexander Aring [Sun, 26 Oct 2014 08:37:11 +0000 (09:37 +0100)]
mac802154: tx: cleanup crc calculation

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: use netdev print helpers
Alexander Aring [Sun, 26 Oct 2014 08:37:10 +0000 (09:37 +0100)]
mac802154: tx: use netdev print helpers

This patch replace the pr_foo printout function to netdev_foo printout
function. Inside the xmit handling, the interface is already known.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: don't allow if down while sync tx
Alexander Aring [Sun, 26 Oct 2014 08:37:09 +0000 (09:37 +0100)]
mac802154: tx: don't allow if down while sync tx

This patch holds rtnl lock while sync xmit inside of workqueue.
Otherwise we could down the interface while worker xmit handling.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: add support for xmit_async callback
Alexander Aring [Sun, 26 Oct 2014 08:37:08 +0000 (09:37 +0100)]
mac802154: tx: add support for xmit_async callback

This patch renames the existsing xmit callback to xmit_sync and
introduces an asynchronous xmit_async function. If ieee802154_ops
doesn't provide the xmit_async callback, then we have a fallback to
the xmit_sync callback.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: fix error handling while xmit
Alexander Aring [Sun, 26 Oct 2014 08:37:07 +0000 (09:37 +0100)]
mac802154: tx: fix error handling while xmit

In case of an error we should call kfree_skb instead of consume_skb which
is called by ieee802154_xmit_complete function.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: use queue helpers in xmit worker
Alexander Aring [Sun, 26 Oct 2014 08:37:06 +0000 (09:37 +0100)]
mac802154: tx: use queue helpers in xmit worker

This patch uses the queue utility helpers inside the xmit worker of
mac802154 subsystem.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: add netdev qeue helpers
Alexander Aring [Sun, 26 Oct 2014 08:37:05 +0000 (09:37 +0100)]
mac802154: add netdev qeue helpers

This patch adds a new file net/mac802154/util.c which contains utility
functions for drivers, etc. This file contains functions to start and
stop queues for all virtual interfaces, this is useful for asynchronous
handling by driver level.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: remove xmit channel context switch
Alexander Aring [Sun, 26 Oct 2014 08:37:04 +0000 (09:37 +0100)]
mac802154: tx: remove xmit channel context switch

This patch removes the channel hopping feature before xmit. There are
several issues to provide a real channel hopping (timing requirements,
etc...).

We don't have any known kernelspace protocol which really use this
feature. And I don't know an real user of this feature.
We simply drop this feature now.

This patch removes also the hold of pib lock which isn't needed by any
real driver xmit callback implementation.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: squash multiple dereferencing
Alexander Aring [Sun, 26 Oct 2014 08:37:03 +0000 (09:37 +0100)]
mac802154: tx: squash multiple dereferencing

This patch introduce some new stack variables to avoid multiple
dereferencing inside the xmit worker function.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: remove kmalloc in xmit hotpath
Alexander Aring [Sun, 26 Oct 2014 08:37:02 +0000 (09:37 +0100)]
mac802154: tx: remove kmalloc in xmit hotpath

This patch removes the kmalloc allocation for workqueue data. This patch
replaces the kmalloc and uses the control block of skb. The control block
has enough space and isn't use by any other layer in this case.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: tx: move xmit callback to tx file
Alexander Aring [Sun, 26 Oct 2014 08:37:01 +0000 (09:37 +0100)]
mac802154: tx: move xmit callback to tx file

This patch moves the netdev xmit callback functions into the tx.c file.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: remove ieee802154_addr from driver_ops
Alexander Aring [Sat, 25 Oct 2014 15:16:42 +0000 (17:16 +0200)]
mac802154: remove ieee802154_addr from driver_ops

This driver_ops callback function is never used by any driver.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rename dev_workqueue to workqueue
Alexander Aring [Sat, 25 Oct 2014 15:16:41 +0000 (17:16 +0200)]
mac802154: rename dev_workqueue to workqueue

Small rename to use the name workqueue than dev_workqueue. To bring the
same naming convention like wireless into 802.15.4.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: introduce IEEE802154_DEV_TO_SUB_IF
Alexander Aring [Sat, 25 Oct 2014 15:16:40 +0000 (17:16 +0200)]
mac802154: introduce IEEE802154_DEV_TO_SUB_IF

This function adds a wrapper to call netdev_priv to getting the sdata
attribute. This is similar like the IEEE80211_DEV_TO_SUB_IF function
inside wireless stack implementation.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: introduce hw_to_local function
Alexander Aring [Sat, 25 Oct 2014 15:16:39 +0000 (17:16 +0200)]
mac802154: introduce hw_to_local function

This patch replace the mac802154_to_priv macro with a static inline
function named hw_to_local. This brings a similar naming convention like
mac80211 stack.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rename sdata slaves and slaves_mtx
Alexander Aring [Sat, 25 Oct 2014 15:16:38 +0000 (17:16 +0200)]
mac802154: rename sdata slaves and slaves_mtx

This patch renamens the slaves attribute in sdata to interfaces and
slaves_mtx to iflist_mtx. This is similar like the mac80211 stack naming
convention.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rename hw subif_data variable to local
Alexander Aring [Sat, 25 Oct 2014 15:16:37 +0000 (17:16 +0200)]
mac802154: rename hw subif_data variable to local

This patch renames the hw attribute in struct ieee802154_sub_if_data to
local. This avoid confusing with the struct ieee802154_hw hw; inside of
local struct.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rename mac802154_sub_if_data
Alexander Aring [Sat, 25 Oct 2014 15:16:36 +0000 (17:16 +0200)]
mac802154: rename mac802154_sub_if_data

Like wireless this structure should named ieee802154_sub_if_data and not
mac802154_sub_if_data. This patch renames the struct and variables to
sdata instead priv sometimes.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: rename mac802154_priv to ieee802154_local
Alexander Aring [Sat, 25 Oct 2014 15:16:35 +0000 (17:16 +0200)]
mac802154: rename mac802154_priv to ieee802154_local

This patch rename the mac802154_priv to ieee802154_local. The
mac802154_priv structure is like ieee80211_local and so we name it
ieee802154_local.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: rename ieee802154_dev to ieee802154_hw
Alexander Aring [Sat, 25 Oct 2014 15:16:34 +0000 (17:16 +0200)]
ieee802154: rename ieee802154_dev to ieee802154_hw

The identical struct of the wireless stack implementation is named
ieee80211_hw. This is useful to name the variable hw instead of get
confusing with netdev dev variable.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: remove fakehard driver
Alexander Aring [Sat, 25 Oct 2014 15:16:33 +0000 (17:16 +0200)]
ieee802154: remove fakehard driver

This patch removes the not functional fakehard driver. We don't support
HardMAC 802.15.4 drivers right now.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoMAINTAINERS: add missing headers in 802.15.4
Alexander Aring [Sat, 25 Oct 2014 07:41:05 +0000 (09:41 +0200)]
MAINTAINERS: add missing headers in 802.15.4

This patch adds a lot of include headers which are missing by the
current IEEE 802.15.4 subsystem.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: move ieee802154 header
Alexander Aring [Sat, 25 Oct 2014 07:41:04 +0000 (09:41 +0200)]
ieee802154: move ieee802154 header

This patch moves the ieee802154 header into include/linux instead
include/net. Similar like wireless which have the ieee80211 header
inside of include/linux.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: move wpan-class.c to core.c
Alexander Aring [Sat, 25 Oct 2014 07:41:03 +0000 (09:41 +0200)]
ieee802154: move wpan-class.c to core.c

Like the wireless core.c file this file contains function for phy
allocation and freeing. Move this file to core.c to get similar
behaviour.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: move wpan-phy.h to cfg802154.h
Alexander Aring [Sat, 25 Oct 2014 07:41:02 +0000 (09:41 +0200)]
ieee802154: move wpan-phy.h to cfg802154.h

The wpan-phy header contains the wpan_phy struct information. Later this
header will be have similar function like cfg80211 header. The cfg80211
header contains the wiphy struct which is identically the wpan_phy
struct inside 802.15.4 subsystem.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: move wpan.c to iface.c
Alexander Aring [Sat, 25 Oct 2014 07:41:01 +0000 (09:41 +0200)]
mac802154: move wpan.c to iface.c

The wpan.c file contains the interface handling functions now. It's similar
like the mac80211 iface.c file. This patch renames this file to iface.c to
have similar naming convention in mac802154.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: move mac802154.h to ieee802154_i.h
Alexander Aring [Sat, 25 Oct 2014 07:41:00 +0000 (09:41 +0200)]
mac802154: move mac802154.h to ieee802154_i.h

This patch moves the mac802154.h internal header to ieee802154_i.h like
the wireless stack ieee80211_i.h file. This avoids confusing with the
not internal header include/net/mac802154.h header. Additional we get
the same naming conversion like mac80211 for this file.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: move ieee802154_dev.c to main.c
Alexander Aring [Sat, 25 Oct 2014 07:40:59 +0000 (09:40 +0200)]
mac802154: move ieee802154_dev.c to main.c

The ieee802154_dev functionality contains various function for
allocation and registration of an ieee802154_dev. This is equal to the
net/mac80211/main.c file. This patch rename the ieee802154_dev.c to
main.c to have the same behaviour.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Add self-tests for SMP crypto functions
Johan Hedberg [Sat, 25 Oct 2014 19:15:39 +0000 (21:15 +0200)]
Bluetooth: Add self-tests for SMP crypto functions

This patch adds self-tests for the c1 and s1 crypto functions used for
SMP pairing. The data used is the sample data from the core
specification.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Add skeleton for SMP self-tests
Johan Hedberg [Sat, 25 Oct 2014 19:15:38 +0000 (21:15 +0200)]
Bluetooth: Add skeleton for SMP self-tests

This patch adds a basic skeleton for SMP self-tests. The tests are put
behind a new configuration option since running them will slow down the
boot process. For now there are no actual tests defined but those will
come in a subsequent patch.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Pass only crypto context to SMP crypto functions
Johan Hedberg [Sat, 25 Oct 2014 19:15:37 +0000 (21:15 +0200)]
Bluetooth: Pass only crypto context to SMP crypto functions

In order to make unit testing possible we need to make the SMP crypto
functions only take the crypto context instead of the full SMP context
(the latter would require having hci_dev, hci_conn, l2cap_chan,
l2cap_conn, etc around). The drawback is that we no-longer get the
involved hdev in the debug logs, but this is really the only way to make
simple unit tests for the code.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: fix shadow warning in hci_disconnect()
Fabian Frederick [Sat, 25 Oct 2014 08:48:58 +0000 (10:48 +0200)]
Bluetooth: fix shadow warning in hci_disconnect()

use clkoff_cp for hci_cp_read_clock_offset instead of cp
(already defined above).

Suggested-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: wpan-class: fix trailing semicolon
Alexander Aring [Sat, 25 Oct 2014 03:25:12 +0000 (05:25 +0200)]
ieee802154: wpan-class: fix trailing semicolon

This patch removes an unnecessary tailing semicolon after macro
define. Otherwise we get a trailing semicolon while using this macro.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: wpan-phy: use blank line after function
Alexander Aring [Sat, 25 Oct 2014 03:25:11 +0000 (05:25 +0200)]
ieee802154: wpan-phy: use blank line after function

This patch adds a blank line after function declaration.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: wpan-phy: change to __aligned(size)
Alexander Aring [Sat, 25 Oct 2014 03:25:10 +0000 (05:25 +0200)]
ieee802154: wpan-phy: change to __aligned(size)

This patch fix a checkpatch warning that __aligned(size) is preferred
over __attribute__((aligned(size))).

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agomac802154: fix typo IEEE802515 to IEEE802154
Alexander Aring [Sat, 25 Oct 2014 03:25:09 +0000 (05:25 +0200)]
mac802154: fix typo IEEE802515 to IEEE802154

This patch fixs a typo in address filter defines from IEEE802515 to
IEEE802154.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: ieee802154_dev: fix align typo
Alexander Aring [Sat, 25 Oct 2014 03:25:08 +0000 (05:25 +0200)]
ieee802154: ieee802154_dev: fix align typo

This patch fix a typo and fix align instead allign.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: mac802154: remove FSF address
Alexander Aring [Sat, 25 Oct 2014 03:25:07 +0000 (05:25 +0200)]
ieee802154: mac802154: remove FSF address

This patch removes the FSF address in files which belongs to ieee802154
and mac802154.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Fix missing channel unlock in l2cap_le_credits
Martin Townsend [Mon, 13 Oct 2014 18:24:45 +0000 (19:24 +0100)]
Bluetooth: Fix missing channel unlock in l2cap_le_credits

In the error case where credits is greater than max_credits there
is a missing l2cap_chan_unlock before returning.

Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Tested-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years ago6lowpan: Use skb_cow in IPHC decompression.
Martin Townsend [Mon, 13 Oct 2014 10:00:56 +0000 (11:00 +0100)]
6lowpan: Use skb_cow in IPHC decompression.

Currently there are potentially 2 skb_copy_expand calls in IPHC
decompression.  This patch replaces this with one call to
skb_cow which will check to see if there is enough headroom
first to ensure it's only done if necessary and will handle
alignment issues for cache.
As skb_cow uses pskb_expand_head we ensure the skb isn't shared from
bluetooth and ieee802.15.4 code that use the IPHC decompression.

Signed-off-by: Martin Townsend <martin.townsend@xsilon.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: 6lowpan: remove unnecessary codes in give_skb_to_upper
Li RongQing [Thu, 16 Oct 2014 02:21:55 +0000 (10:21 +0800)]
Bluetooth: 6lowpan: remove unnecessary codes in give_skb_to_upper

netif_rx() only returns NET_RX_DROP and NET_RX_SUCCESS, not returns
negative value

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Improve RFCOMM __test_pf macro robustness
Szymon Janc [Mon, 13 Oct 2014 09:43:54 +0000 (11:43 +0200)]
Bluetooth: Improve RFCOMM __test_pf macro robustness

Value returned by this macro might be used as bit value so it should
return either 0 or 1 to avoid possible bugs (similar to NSC bug)
when shifting it.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
10 years agoBluetooth: Fix RFCOMM NSC response
Szymon Janc [Mon, 13 Oct 2014 09:43:53 +0000 (11:43 +0200)]
Bluetooth: Fix RFCOMM NSC response

rfcomm_send_nsc expects CR to be either 0 or 1 since it is later
passed to __mcc_type macro and shitfed. Unfortunatelly CR extracted
from received frame type was not sanitized and shifted value was passed
resulting in bogus response.

Note: shifted value was also passed to other functions but was used
only in if satements so this bug appears only for NSC case.

The CR bit in the value octet shall be set to the same value
as the CR bit in the type field octet of the not supported command
frame but the CR bit for NCS response should be set to 0 since it is
always a response.

This was affecting TC_RFC_BV_25_C PTS qualification test.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
10 years agoBluetooth: Defer connection-parameter removal when unpairing
Alfonso Acosta [Sat, 11 Oct 2014 21:44:47 +0000 (21:44 +0000)]
Bluetooth: Defer connection-parameter removal when unpairing

Systematically removing the LE connection parameters and autoconnect
action is inconvenient for rebonding without disconnecting from
userland (i.e. unpairing followed by repairing without
disconnecting). The parameters will be lost after unparing and
userland needs to take care of book-keeping them and re-adding them.

This patch allows userland to forget about parameter management when
rebonding without disconnecting. It defers clearing the connection
parameters when unparing without disconnecting, giving a chance of
keeping the parameters if a repairing happens before the connection is
closed.

Signed-off-by: Alfonso Acosta <fons@spotify.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
10 years agoieee802154: 6lowpan: add RTNL assertion
Alexander Aring [Mon, 13 Oct 2014 08:33:07 +0000 (10:33 +0200)]
ieee802154: 6lowpan: add RTNL assertion

This patch ensure that the rtnl lock is hold while newlink callback.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: 6lowpan: improve packet registration
Alexander Aring [Mon, 13 Oct 2014 08:33:06 +0000 (10:33 +0200)]
ieee802154: 6lowpan: improve packet registration

This patch improves the packet registration handling. Instead of
registration with module init we have a open count variable and
registration the lowpan packet handler when it's needed.

The open count variable should be protected by RTNL.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Remove redundant check on hci_conn's device class
Alfonso Acosta [Tue, 7 Oct 2014 08:44:12 +0000 (08:44 +0000)]
Bluetooth: Remove redundant check on hci_conn's device class

NULL-checking conn->dev_class is pointless since the variable is
defined as an array, i.e. it will always be non-NULL.

Signed-off-by: Alfonso Acosta <fons@spotify.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
10 years agoBluetooth: Include ADV_IND report in Device Connected event
Alfonso Acosta [Tue, 7 Oct 2014 08:44:11 +0000 (08:44 +0000)]
Bluetooth: Include ADV_IND report in Device Connected event

There are scenarios when autoconnecting to a device after the
reception of an ADV_IND report (action 0x02), in which userland
might want to examine the report's contents.

For instance, the Service Data might have changed and it would be
useful to know ahead of time before starting any GATT procedures.
Also, the ADV_IND may contain Manufacturer Specific data which would
be lost if not propagated to userland. In fact, this patch results
from the need to rebond with a device lacking persistent storage which
notifies about losing its LTK in ADV_IND reports.

This patch appends the ADV_IND report which triggered the
autoconnection to the EIR Data in the Device Connected event.

Signed-off-by: Alfonso Acosta <fons@spotify.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
10 years agoBluetooth: Refactor arguments of mgmt_device_connected
Alfonso Acosta [Tue, 7 Oct 2014 08:44:10 +0000 (08:44 +0000)]
Bluetooth: Refactor arguments of mgmt_device_connected

The values of a lot of the mgmt_device_connected() parameters come
straight from a hci_conn object. We can simplify the function by passing
the full hci_conn pointer to it.

Signed-off-by: Alfonso Acosta <fons@spotify.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
10 years agoat86rf230: remove unnecessary print of async error
Alexander Aring [Tue, 7 Oct 2014 08:38:33 +0000 (10:38 +0200)]
at86rf230: remove unnecessary print of async error

The async error function will already printout the errno over dev_err.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: fix enable_irq handling on async spi
Alexander Aring [Tue, 7 Oct 2014 08:38:32 +0000 (10:38 +0200)]
at86rf230: fix enable_irq handling on async spi

Sometimes the async state function is call in an context where the spi
irq is diabled. This patch fix the handling to enable the irq when
spi_async failed in the async state change calling chain. We do this by
a context parameter irq_enable and evaluate this parameter when
spi_async failed instead of returning spi_async errno.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: fix race condition
Alexander Aring [Tue, 7 Oct 2014 08:38:31 +0000 (10:38 +0200)]
at86rf230: fix race condition

When the driver waits for a tx completion currently the driver direct
enables the irq. When we switching to RX_AACK_ON some steps afterwards
the driver could receive a new frame and request resources which are
already in use, for example irq state change resource.

To be sure there are no new interrupts when we switching to RX_AACK_ON,
we enable the irq when state change to RX_AACK_ON was completed.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: add missing enable_irq
Alexander Aring [Tue, 7 Oct 2014 08:38:30 +0000 (10:38 +0200)]
at86rf230: add missing enable_irq

This patch adds a missing enable_irq when spi_async in isr failed.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: squash unnecessary dereferencing
Alexander Aring [Tue, 7 Oct 2014 08:38:29 +0000 (10:38 +0200)]
at86rf230: squash unnecessary dereferencing

This patch removes dereferencing irq number over spi struct. Instead we
doing it directly over isr paramater.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: correct at86rf2xx lifs timings
Alexander Aring [Tue, 7 Oct 2014 08:38:28 +0000 (10:38 +0200)]
at86rf230: correct at86rf2xx lifs timings

Symbol rate is 16 us. Lifs is 40 symbols. 16 * 40 = 640 us.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: correct aret lifs and sifs handling
Alexander Aring [Tue, 7 Oct 2014 08:38:27 +0000 (10:38 +0200)]
at86rf230: correct aret lifs and sifs handling

This patch adds lifs/sifs handling only if max_frame_retries is above
zero. The at86rf2xx datasheets says nothing about phy lifs/sifs
handling. I asked the atmel support and they said lifs/sifs is done
by phy when max_frame_retries is above zero.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: add missing error handling
Alexander Aring [Tue, 7 Oct 2014 08:38:26 +0000 (10:38 +0200)]
at86rf230: add missing error handling

This patch adds an async error handling function if sync state change
runs into a timeout. The async error handling function tries to recover
the phy state machine into a valid state.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoat86rf230: fix errno on tx timeout handling
Alexander Aring [Tue, 7 Oct 2014 08:38:25 +0000 (10:38 +0200)]
at86rf230: fix errno on tx timeout handling

The rc variable is zero if we get a timeout. Instead of pass the rc
variable to the async error handling function which try to recover the
phy, we use a static -ETIMEDOUT errno.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: mrf24j40: Add support for MRF24J40MC
Simon Vincent [Mon, 6 Oct 2014 09:39:45 +0000 (10:39 +0100)]
ieee802154: mrf24j40: Add support for MRF24J40MC

The MRF24J40MC module has an external amplifier which should be
enabled. The TX power has to be lowered to meet FCC regs.

Signed-off-by: Simon Vincent <simon.vincent@xsilon.com>
Acked-by: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Add support for Acer [0489:e078]
Anantha Krishnan [Mon, 6 Oct 2014 11:01:49 +0000 (16:31 +0530)]
Bluetooth: Add support for Acer [0489:e078]

Add support for the QCA6174 chip.

    T:  Bus=06 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#=  3 Spd=12  MxCh= 0
    D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=0489 ProdID=e078 Rev=00.01
    C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

Signed-off-by: Anantha Krishnan <ananthk@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: 6lowpan: fix sign of errno return val
Alexander Aring [Mon, 6 Oct 2014 09:00:52 +0000 (11:00 +0200)]
ieee802154: 6lowpan: fix sign of errno return val

This patch fix ERR_PTR(-rc) to ERR_PTR(rc). The variable rc is already a
negative errno value.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: reassembly: fix tag byteorder
Alexander Aring [Mon, 6 Oct 2014 09:00:51 +0000 (11:00 +0200)]
ieee802154: reassembly: fix tag byteorder

This patch fix byte order handling in reassembly code of 802.15.4
6LoWPAN fragmentation handling.

net/ieee802154/reassembly.c:58:43: warning: restricted __be16 degrades to integer

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: 6lowpan: fix byteorder for frag tag
Alexander Aring [Mon, 6 Oct 2014 09:00:50 +0000 (11:00 +0200)]
ieee802154: 6lowpan: fix byteorder for frag tag

This patch fix byteorder issues with fragment tag of generation 802.15.4
6LoWPAN fragment header.

net/ieee802154/6lowpan_rtnl.c:278:54: warning restricted __be16 degrades to integer
net/ieee802154/6lowpan_rtnl.c:278:18: warning: incorrect type in assignment (different base types)
net/ieee802154/6lowpan_rtnl.c:278:18:    expected restricted __be16 [usertype] frag_tag
net/ieee802154/6lowpan_rtnl.c:278:18:    got unsigned short

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoieee802154: 6lowpan: Drop PACKET_OTHERHOST skbs in 6lowpan
Simon Vincent [Sun, 5 Oct 2014 18:23:12 +0000 (20:23 +0200)]
ieee802154: 6lowpan: Drop PACKET_OTHERHOST skbs in 6lowpan

There is no point processing pkts which are PACKET_OTHERHOST
in 6lowpan as they are discarded as soon as they reach the
ipv6 layer. Therefore we should drop them in the 6lowpan layer.

Signed-off-by: Simon Vincent <simon.vincent@xsilon.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agotrivial: net/mac802154: Fix Kconfig typo
Julien Catalano [Sun, 5 Oct 2014 18:23:11 +0000 (20:23 +0200)]
trivial: net/mac802154: Fix Kconfig typo

Signed-off-by: Julien Catalano <julien.catalano@gmail.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoMerge tag 'ntb-3.18' of git://github.com/jonmason/ntb
Linus Torvalds [Sun, 19 Oct 2014 19:58:22 +0000 (12:58 -0700)]
Merge tag 'ntb-3.18' of git://github.com/jonmason/ntb

Pull ntb (non-transparent bridge) updates from Jon Mason:
 "Add support for Haswell NTB split BARs, a debugfs entry for basic
  debugging info, and some code clean-ups"

* tag 'ntb-3.18' of git://github.com/jonmason/ntb:
  ntb: Adding split BAR support for Haswell platforms
  ntb: use errata flag set via DID to implement workaround
  ntb: conslidate reading of PPD to move platform detection earlier
  ntb: move platform detection to separate function
  NTB: debugfs device entry

10 years agoMerge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sun, 19 Oct 2014 19:50:44 +0000 (12:50 -0700)]
Merge branch 'i2c/for-next' of git://git./linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "Highlights from the I2C subsystem for 3.18:

   - new drivers for Axxia AM55xx, and Hisilicon hix5hd2 SoC.

   - designware driver gained AMD support, exynos gained exynos7 support

  The rest is usual driver stuff.  Hopefully no lowlights this time"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: i801: Add Device IDs for Intel Sunrise Point PCH
  i2c: hix5hd2: add i2c controller driver
  i2c-imx: Disable the clock on probe failure
  i2c: designware: Add support for AMD I2C controller
  i2c: designware: Rework probe() to get clock a bit later
  i2c: designware: Default to fast mode in case of ACPI
  i2c: axxia: Add I2C driver for AXM55xx
  i2c: exynos: add support for HSI2C module on Exynos7
  i2c: mxs: detect No Slave Ack on SELECT in PIO mode
  i2c: cros_ec: Remove EC_I2C_FLAG_10BIT
  i2c: cros-ec-tunnel: Add of match table
  i2c: rcar: remove sign-compare flaw
  i2c: ismt: Use minimum descriptor size
  i2c: imx: Add arbitration lost check
  i2c: rk3x: Remove unlikely() annotations
  i2c: rcar: check for no IRQ in rcar_i2c_irq()
  i2c: rcar: make rcar_i2c_prepare_msg() *void*
  i2c: rcar: simplify check for last message
  i2c: designware: add support of platform data to set I2C mode
  i2c: designware: add support of I2C standard mode

10 years agoMerge tag 'sound-fix-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Sun, 19 Oct 2014 19:45:36 +0000 (12:45 -0700)]
Merge tag 'sound-fix-3.18-rc1' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are a collection of small fixes after 3.18 merge.

  The urgent one is the fix for kernel panics with linked PCM substream
  triggered by the recent nonatomic PCM ops support.  Other two fixes
  (emu10k1 and bebob) are stable fixes, and one easy PCI ID addition for
  a new Intel HD-audio controller"

* tag 'sound-fix-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda_intel: Add Device IDs for Intel Sunrise Point PCH
  ALSA: emu10k1: Fix deadlock in synth voice lookup
  ALSA: pcm: Fix referred substream in snd_pcm_action_group() unlock loop
  ALSA: bebob: Fix failure to detect source of clock for Terratec Phase 88

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Sun, 19 Oct 2014 19:40:24 +0000 (12:40 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull second round of input updates from Dmitry Torokhov:
 "Mostly simple bug fixes, although we do have one brand new driver for
  Microchip AR1021 i2c touchscreen.

  Also there is the change to stop trying to use i8042 active
  multiplexing by default (it is still possible to activate it via
  i8042.nomux=0 on boxes that implement it)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xpad - add Thrustmaster as Xbox 360 controller vendor
  Input: xpad - add USB ID for Thrustmaster Ferrari 458 Racing Wheel
  Input: max77693-haptic - fix state check in imax77693_haptic_disable()
  Input: xen-kbdfront - free grant table entry in xenkbd_disconnect_backend
  Input: alps - fix v4 button press recognition
  Input: i8042 - disable active multiplexing by default
  Input: i8042 - add noloop quirk for Asus X750LN
  Input: synaptics - gate forcepad support by DMI check
  Input: Add Microchip AR1021 i2c touchscreen
  Input: cros_ec_keyb - add of match table
  Input: serio - avoid negative serio device numbers
  Input: avoid negative input device numbers
  Input: automatically set EV_ABS bit in input_set_abs_params
  Input: adp5588-keys - cancel workqueue in failure path
  Input: opencores-kbd - switch to using managed resources
  Input: evdev - fix EVIOCG{type} ioctl

10 years agoMerge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Sun, 19 Oct 2014 19:29:23 +0000 (12:29 -0700)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband

Pull infiniband/RDMA updates from Roland Dreier:
 - large set of iSER initiator improvements
 - hardware driver fixes for cxgb4, mlx5 and ocrdma
 - small fixes to core midlayer

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits)
  RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line
  RDMA/cxgb4: Add missing neigh_release in find_route
  RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
  RDMA/cxgb4: Make c4iw_wr_log_size_order static
  IB/core: Fix XRC race condition in ib_uverbs_open_qp
  IB/core: Clear AH attr variable to prevent garbage data
  RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis
  RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it
  RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc()
  RDMA/ocrdma: Remove a unused-label warning
  RDMA/ocrdma: Convert kernel VA to PA for mmap in user
  RDMA/ocrdma: Get vlan tag from ib_qp_attrs
  RDMA/ocrdma: Add default GID at index 0
  IB/mlx5, iser, isert: Add Signature API additions
  Target/iser: Centralize ib_sig_domain setting
  IB/iser: Centralize ib_sig_domain settings
  IB/mlx5: Use extended internal signature layout
  IB/iser: Set IP_CSUM as default guard type
  IB/iser: Remove redundant assignment
  IB/mlx5: Use enumerations for PI copy mask
  ...

10 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Oct 2014 18:55:41 +0000 (11:55 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull more perf updates from Ingo Molnar:
 "A second (and last) round of late coming fixes and changes, almost all
  of them in perf tooling:

  User visible tooling changes:

   - Add period data column and make it default in 'perf script' (Jiri
     Olsa)

   - Add a visual cue for toggle zeroing of samples in 'perf top'
     (Taeung Song)

   - Improve callchains when using libunwind (Namhyung Kim)

  Tooling fixes and infrastructure changes:

   - Fix for double free in 'perf stat' when using some specific invalid
     command line combo (Yasser Shalabi)

   - Fix off-by-one bugs in map->end handling (Stephane Eranian)

   - Fix off-by-one bug in maps__find(), also related to map->end
     handling (Namhyung Kim)

   - Make struct symbol->end be the first addr after the symbol range,
     to make it match the convention used for struct map->end.  (Arnaldo
     Carvalho de Melo)

   - Fix perf_evlist__add_pollfd() error handling in 'perf kvm stat
     live' (Jiri Olsa)

   - Fix python test build by moving callchain_param to an object linked
     into the python binding (Jiri Olsa)

   - Document sysfs events/ interfaces (Cody P Schafer)

   - Fix typos in perf/Documentation (Masanari Iida)

   - Add missing 'struct option' forward declaration (Arnaldo Carvalho
     de Melo)

   - Add option to copy events when queuing for sorting across cpu
     buffers and enable it for 'perf kvm stat live', to avoid having
     events left in the queue pointing to the ring buffer be rewritten
     in high volume sessions.  (Alexander Yarygin, improving work done
     by David Ahern):

   - Do not include a struct hists per perf_evsel, untangling the
     histogram code from perf_evsel, to pave the way for exporting a
     minimalistic tools/lib/api/perf/ library usable by tools/perf and
     initially by the rasd daemon being developed by Borislav Petkov,
     Robert Richter and Jean Pihet.  (Arnaldo Carvalho de Melo)

   - Make perf_evlist__open(evlist, NULL, NULL), i.e. without cpu and
     thread maps mean syswide monitoring, reducing the boilerplate for
     tools that only want system wide mode.  (Arnaldo Carvalho de Melo)

   - Move exit stuff from perf_evsel__delete to perf_evsel__exit, delete
     should be just a front end for exit + free (Arnaldo Carvalho de
     Melo)

   - Add support to new style format of kernel PMU event.  (Kan Liang)

  and other misc fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)
  perf script: Add period as a default output column
  perf script: Add period data column
  perf evsel: No need to drag util/cgroup.h
  perf evlist: Add missing 'struct option' forward declaration
  perf evsel: Move exit stuff from __delete to __exit
  kprobes/x86: Remove stale ARCH_SUPPORTS_KPROBES_ON_FTRACE define
  perf kvm stat live: Enable events copying
  perf session: Add option to copy events when queueing
  perf Documentation: Fix typos in perf/Documentation
  perf trace: Use thread_{,_set}_priv helpers
  perf kvm: Use thread_{,_set}_priv helpers
  perf callchain: Create an address space per thread
  perf report: Set callchain_param.record_mode for future use
  perf evlist: Fix for double free in tools/perf stat
  perf test: Add test case for pmu event new style format
  perf tools: Add support to new style format of kernel PMU event
  perf tools: Parse the pmu event prefix and suffix
  Revert "perf tools: Default to cpu// for events v5"
  perf Documentation: Remove Ruplicated docs for powerpc cpu specific events
  perf Documentation: sysfs events/ interfaces
  ...

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Sun, 19 Oct 2014 18:46:09 +0000 (11:46 -0700)]
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:
 "Here we have two bug fixes:

  1) The current thread's fault_code is not setup properly upon entry to
     do_sparc64_fault() in some paths, leading to spurious SIGBUS.

  2) Don't use a zero length array at the end of thread_info on sparc64,
     otherwise end_of_stack() isn't right"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Do not define thread fpregs save area as zero-length array.
  sparc64: Fix corrupted thread fault code.

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sun, 19 Oct 2014 18:41:57 +0000 (11:41 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:
 "A quick batch of bug fixes:

  1) Fix build with IPV6 disabled, from Eric Dumazet.

  2) Several more cases of caching SKB data pointers across calls to
     pskb_may_pull(), thus referencing potentially free'd memory.  From
     Li RongQing.

  3) DSA phy code tests operation presence improperly, instead of going:

        if (x->ops->foo)
                r = x->ops->foo(args);

     it was going:

        if (x->ops->foo(args))
                r = x->ops->foo(args);

   Fix from Andew Lunn"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  Net: DSA: Fix checking for get_phy_flags function
  ipv6: fix a potential use after free in sit.c
  ipv6: fix a potential use after free in ip6_offload.c
  ipv4: fix a potential use after free in gre_offload.c
  tcp: fix build error if IPv6 is not enabled

10 years agoNet: DSA: Fix checking for get_phy_flags function
Andrew Lunn [Sun, 19 Oct 2014 14:41:47 +0000 (16:41 +0200)]
Net: DSA: Fix checking for get_phy_flags function

The check for the presence or not of the optional switch function
get_phy_flags() called the function, rather than checked to see if it
is a NULL pointer. This causes a derefernce of a NULL pointer on all
switch chips except the sf2, the only switch to implement this call.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Fixes: 6819563e646a ("net: dsa: allow switch drivers to specify phy_device::dev_flags")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosparc64: Do not define thread fpregs save area as zero-length array.
David S. Miller [Sun, 19 Oct 2014 03:12:33 +0000 (23:12 -0400)]
sparc64: Do not define thread fpregs save area as zero-length array.

This breaks the stack end corruption detection facility.

What that facility does it write a magic value to "end_of_stack()"
and checking to see if it gets overwritten.

"end_of_stack()" is "task_thread_info(p) + 1", which for sparc64 is
the beginning of the FPU register save area.

So once the user uses the FPU, the magic value is overwritten and the
debug checks trigger.

Fix this by making the size explicit.

Due to the size we use for the fpsaved[], gsr[], and xfsr[] arrays we
are limited to 7 levels of FPU state saves.  So each FPU register set
is 256 bytes, allocate 256 * 7 for the fpregs area.

Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosparc64: Fix corrupted thread fault code.
David S. Miller [Sun, 19 Oct 2014 03:03:09 +0000 (23:03 -0400)]
sparc64: Fix corrupted thread fault code.

Every path that ends up at do_sparc64_fault() must install a valid
FAULT_CODE_* bitmask in the per-thread fault code byte.

Two paths leading to the label winfix_trampoline (which expects the
FAULT_CODE_* mask in register %g4) were not doing so:

1) For pre-hypervisor TLB protection violation traps, if we took
   the 'winfix_trampoline' path we wouldn't have %g4 initialized
   with the FAULT_CODE_* value yet.  Resulting in using the
   TLB_TAG_ACCESS register address value instead.

2) In the TSB miss path, when we notice that we are going to use a
   hugepage mapping, but we haven't allocated the hugepage TSB yet, we
   still have to take the window fixup case into consideration and
   in that particular path we leave %g4 not setup properly.

Errors on this sort were largely invisible previously, but after
commit 4ccb9272892c33ef1c19a783cfa87103b30c2784 ("sparc64: sun4v TLB
error power off events") we now have a fault_code mask bit
(FAULT_CODE_BAD_RA) that triggers due to this bug.

FAULT_CODE_BAD_RA triggers because this bit is set in TLB_TAG_ACCESS
(see #1 above) and thus we get seemingly random bus errors triggered
for user processes.

Fixes: 4ccb9272892c ("sparc64: sun4v TLB error power off events")
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>