Commit Graph

26091 Commits

Author SHA1 Message Date
Amitkumar Karwar
0a5cc49750 mwifiex: send fewer channels to scan while connected
Application triggers periodic background scans when device is connected.
We will scan less number of channels per scan command so that data
traffic won't get affected.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 19:08:47 +02:00
Devidas Puranik
92c70a958b mwifiex: fix for unaligned reads
Using the accessor function e.g. get_unaligned_le32 instead of
le32_to_cpu to avoid the unaligned access. This is for the
architectures that don't handle the unaligned memory access

Signed-off-by: Devidas Puranik <devidas@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 19:05:21 +02:00
Daniel Mentz
5653c6462f mwifiex: Use accessors routines for unaligned values
Synopsys' ARCompact architecture does not support loading from or
storing values to unaligned memory locations. We saw a series of
misaligned access exceptions on ARC. To work around this issue, we bulk
replaced le16_to_cpu and le32_to_cpu with get_unaligned_le16 and
get_unaligned_le32, respectively. We also added le16_unaligned_add_cpu
which is similar to le16_add_cpu but works with unaligned values.

Signed-off-by: Daniel Mentz <danielmentz@google.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 19:05:21 +02:00
Karthik Ananthapadmanabha
5c0b879874 mwifiex: add qualifier to firmware structures
Adding qualifier "__packed" indicates that no padding should be
performed on the qualified object for alignment.
This patch adds qualifier __packed to the required firmware
structures in mwifiex driver.

Signed-off-by: Karthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 19:05:20 +02:00
Brian Norris
5203341562 mwifiex: pcie: clean up error prints in mwifiex_pcie_reset_notify()
We shouldn't be printing a kernel pointer as a decimal integer. But we
really shouldn't be printing this case at all; we should never get here
with NULL drvdata. We've eliminated this unnecessary conditional in
several other places, so kill it here too.

Similarly, there's no need to check for '!pdev'; we are guaranteed to
have a real device here.

And finally, use dev_err() instead of pr_err().

This yields (for failed PCIe resets):

[   68.286586] mwifiex_pcie 0000:01:00.0: mwifiex_pcie_reset_notify: adapter structure is not valid

instead of:

[   82.932658] mwifiex_pcie: mwifiex_pcie_reset_notify: Card or adapter structure is not valid (-270880688088)

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 19:04:39 +02:00
Jeffy Chen
ef7e071474 mwifiex: wake system up when receives a wake irq
Currrently we are disabling this wake irq after receiving it. If this
happens before we finish suspend and the pm event check is disabled,
the system will continue suspending, and this irq would not work again.

We may need to abort system suspend to avoid that.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 18:44:05 +02:00
Alexandre Belloni
5c5105666d atmel: remove time_t usage
last_qual never really holds a time. It only holds jiffies. Make it the
same type as jiffies.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20 18:43:17 +02:00
Rostyslav Khudolii
b51040fc37 ath6kl: Remove old 802.11a-only channels
Channels 34/38/42/46 can only be used for compatibility with old devices sold
in Japan. Modern products, such as AR6003/AR6004 don't support these channels.
Keeping them in the upstream is error prone and requires full network stack
support. A custom patch should be used in case such compatibility is required.

Without this one, a user is able to start an AP using wpa_supplicant,
for example, on one of these channels (34/38/42/46), without getting
any warning/error from the cfg80211 or ath6kl - which is correct
(since these channels match regdom rules). However, the AR6003 and its
firmware (we're using v3.4.0.225) will fail and return
"WMI_CMDERROR_EVENTID" with "INVALID_PARAM" error code.

Signed-off-by: Rostyslav Khudolii <rkhudolii@airtame.com>
Cc: Attila Sukosd <attila@airtame.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-20 17:27:15 +02:00
Colin Ian King
eed4721fb6 ath10k: remove redundant check of len with buf_len
The check of len > buf_len is redundant as len is initialized
to 0 and buf_len to 4096, so this comparison is always false.
Remove it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-20 17:24:45 +02:00
Mohammed Shafi Shajakhan
0a7d88e432 ath10k: fix typo in wmi header file
Fix typo (spelling mistake) in wmi.h

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-20 17:23:08 +02:00
Kalle Valo
46bc92bedb ath10k: fix warnings from an earlier commit
I failed to notice that commit 523f6701db ("ath10k: update available channel
list for 5G radio") added two new warnings:

drivers/net/wireless/ath/ath10k/mac.c:3129:6: warning: symbol 'ath10k_mac_update_channel_list' was not declared. Should it be static?
drivers/net/wireless/ath/ath10k/mac.c:3170: Alignment should match open parenthesis

Fix those.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-20 17:21:38 +02:00
Ryan Hsu
6be3b6cce1 ath10k: fix incorrect wlan_mac_base in qca6174_regs
In the 'commit ebee76f7fa ("ath10k: allow setting coverage class")',
it inherits the design and the address offset from ath9k, but the address
is not applicable to QCA6174, which leads to a random crash while doing the
resume() operation, since the set_coverage_class.ops will be called from
ieee80211_reconfig() when resume() (if the wow is not configured).

Fix the incorrect address offset here to avoid the random crash.

Verified on QCA6174/hw3.0 with firmware WLAN.RM.4.4-00022-QCARMSWPZ-2.

kvalo: this also seems to fix a regression with firmware restart.

Fixes: ebee76f7fa ("ath10k: allow setting coverage class")
Cc: <stable@vger.kernel.org> # v4.10
Signed-off-by: Ryan Hsu <ryanhsu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-20 17:11:31 +02:00
Mohammed Shafi Shajakhan
a28f6f27a8 ath10k: fix fetching channel during potential radar detection
Fetch target operating channel during potential radar detection when
the interface is just brought up, but no channel is assigned from
userspace. In this scenario rx_channel may not be having a valid pointer
hence fetch the target operating channel to avoid warnings as below
which can be triggered by the commands with DFS testing over longer run

comamnds:
iw wlan1 set type mesh
ifconfig wlan1 up (valid tgt_oper_chan only)
iw wlan1 cac trigger freq 5260 HT20 (valid rx_channel, tgt_oper_chan)
iw wlan1 cac trigger freq 5280 HT20
iw wlan1 cac trigger freq 5300 HT20

Once the CAC expires, current channel context will be removed and
we are only left with the fallback option of using 'target operating
channel'

Firmware and driver log:
ath: phy1: DFS: radar found on freq=5300: id=1, pri=1125, count=5,
count_false=4
ath: phy1: DFS: radar found on freq=5260: id=5, pri=3151, count=6,
count_false=11
ath: phy1: DFS: radar found on freq=5280: id=1, pri=1351, count=6,
count_false=4
ath: phy1: DFS: radar found on freq=5300: id=1, pri=1125, count=5,
count_false=4
ath10k_pci 0001:01:00.0: failed to derive channel for radar pulse,
treating as radar
ath10k_pci 0001:01:00.0: failed to derive channel for radar pulse,
treating as radar

Call trace:

WARNING: CPU: 1 PID: 2145 at
backports-20161201-3.14.77-9ab3068/net/wireless/chan.c:265
cfg80211_set_dfs_state+0x3c/0x88 [cfg80211]()

 Workqueue: phy1 ieee80211_dfs_radar_detected_work
[mac80211]
[<c0320770>] (warn_slowpath_null) from [<bf79b90c>]
(cfg80211_set_dfs_state+0x3c/0x88 [cfg80211])
[<bf79b90c>] (cfg80211_set_dfs_state [cfg80211]) from
[<bf79697c>] (cfg80211_radar_event+0xc4/0x140 [cfg80211])
[<bf79697c>] (cfg80211_radar_event [cfg80211]) from
[<bf83c058>] (ieee80211_dfs_radar_detected_work+0xa8/0xb4 [mac80211])
[<bf83c058>] (ieee80211_dfs_radar_detected_work
[mac80211]) from [<c0339518>] (process_one_work+0x298/0x4a4)

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-16 10:58:20 +02:00
Colin Ian King
51f60b8b69 ath10k: remove redundant error check
The check on ret for an error is redundant because it is already been
checked for non-zero earlier on and ret is never non-zero at this point.
Fix this by removing the redundant check and error message.

Detected by CoverityScan, CID#1357170 ("Logically Dead Code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-16 10:56:46 +02:00
Zefir Kurtisi
45c3d550b0 ath9k: don't trigger spectral scan when not enabled
Doing so enables the FFT generation without prior
configuration, leading to an IRQ storm caused by
invalid (or at least unwanted) PHY errors.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-16 10:54:52 +02:00
Tamizh chelvam
523f6701db ath10k: update available channel list for 5G radio
If a 5 GHz radio is calibrated for operation in both
the low band (channels 36 to 64) and high band(channels 100 to 169),
hardware allows operations in all the listed channels. However,
if the chip has been calibrated only for the low/high band and
a high/low band channel is configured, due to lack of calibration
there will be potentially invalid signal on those non calibrated channels.
To avoid this problem this patch sets IEEE80211_CHAN_DISABLED flag for
those non calibrated channels by using low_5ghz_chan and high_5ghz_chan
values which we get from target through wmi service ready event.

Driver initialized flags are getting re initialized in handle_channel
in cfg80211. So calling the function to disable the non supported channel
from reg_notifier().

Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-16 10:53:49 +02:00
Mohammed Shafi Shajakhan
ca07baab0b ath10k: disallow DFS simulation if DFS channel is not enabled
If DFS is not enabled in hostapd (ieee80211h=0) DFS channels shall
not be available for use even though the hardware may have the capability
to support DFS. With this configuration (DFS disabled in hostapd) trying to
bring up ath10k device in DFS channel for AP mode fails and trying to
simulate DFS in ath10k debugfs results in a warning in cfg80211 complaining
invalid channel and this should be avoided in the driver itself rather than
false propogating RADAR detection to mac80211/cfg80211. Fix this by
checking for the first vif 'is_started' state(should work for client mode
as well) as all the vifs shall be configured for the same channel

sys/kernel/debug/ieee80211/phy1/ath10k# echo 1 > dfs_simulate_radar

WARNING: at net/wireless/chan.c:265 cfg80211_radar_event+0x24/0x60
Workqueue: phy0 ieee80211_dfs_radar_detected_work [mac80211]
[<c022f2d4>] (warn_slowpath_null) from
[<bf72dab8>] (cfg80211_radar_event+0x24/0x60 [cfg80211])
[<bf72dab8>] (cfg80211_radar_event [cfg80211]) from
[<bf7813e0>] (ieee80211_dfs_radar_detected_work+0x94/0xa0 [mac80211])
[<bf7813e0>] (ieee80211_dfs_radar_detected_work [mac80211]) from
[<c0242320>] (process_one_work+0x20c/0x32c)

WARNING: at net/wireless/nl80211.c:2488 nl80211_get_mpath+0x13c/0x4cc
 Workqueue: phy0 ieee80211_dfs_radar_detected_work [mac80211]
[<c022f2d4>] (warn_slowpath_null) from
[<bf72dab8>] (cfg80211_radar_event+0x24/0x60 [cfg80211])
[<bf72dab8>] (cfg80211_radar_event [cfg80211]) from
[<bf7813e0>] (ieee80211_dfs_radar_detected_work+0x94/0xa0 [mac80211])
[<bf7813e0>] (ieee80211_dfs_radar_detected_work [mac80211]) from
[<c0242320>] (process_one_work+0x20c/0x32c)

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-16 10:51:35 +02:00
Brian Norris
36908c4e5b mwifiex: uninit wakeup info when removing device
We manually init wakeup info, but we don't detach it on device removal.
This means that if we (for example) rmmod + modprobe the driver, the
device framework might return -EEXIST the second time, and we'll
complain in the logs:

[  839.311881] mwifiex_pcie 0000:01:00.0: fail to init wakeup for mwifiex

AFAICT, there's no other negative effect.

But we can fix this by disabling wakeup on remove, similar to what a few
other drivers do (e.g., the power supply framework).

This code (and bug) has existed on SDIO for a while, but it got moved
around and enabled for PCIe with commit 853402a008 ("mwifiex: Enable
WoWLAN for both sdio and pcie").

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-16 10:14:13 +02:00
Brian Norris
ba1c7e45ec mwifiex: set adapter->dev before starting to use mwifiex_dbg()
The mwifiex_dbg() log handler utilizes the struct device in
adapter->dev. Without it, it decides not to print anything.

As of commit 2e02b58142 ("mwifiex: Allow mwifiex early access to device
structure"), we started assigning that pointer only after we finished
mwifiex_register() -- this effectively neuters any mwifiex_dbg() logging
done before this point.

Let's move the device assignment into mwifiex_register().

Fixes: 2e02b58142 ("mwifiex: Allow mwifiex early access to device structure")
Cc: Rajat Jain <rajatja@google.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-16 10:14:12 +02:00
Brian Norris
4e841d3eb9 mwifiex: pcie: don't leak DMA buffers when removing
When PCIe FLR support was added, much of the remove/release code for
PCIe was migrated to ->down_dev(), but ->down_dev() is never called for
device removal. Let's refactor the cleanup to be done in both cases.

Also, drop the comments above mwifiex_cleanup_pcie(), because they were
clearly wrong, and it's better to have clear and obvious code than to
detail the code steps in comments anyway.

Fixes: 4c5dae59d2 ("mwifiex: add PCIe function level reset support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-16 10:14:12 +02:00
Sara Sharon
9a3fcf912e iwlwifi: mvm: cleanup pending frames in DQA mode
When a station is asleep, the fw will set it as "asleep".
All queues that are used only by one station will be stopped by
the fw.

In pre-DQA mode this was relevant for aggregation queues. However,
in DQA mode a queue is owned by one station only, so all queues
will be stopped.
As a result, we don't expect to get filtered frames back to
mac80211 and don't have to maintain the entire pending_frames
state logic, the same way as we do in aggregations.

The correct behavior is to align DQA behavior with the aggregation
queue behaviour pre-DQA:
- Don't count pending frames.
- Let mac80211 know we have frames in these queues so that it can
properly handle trigger frames.

When a trigger frame is received, mac80211 tells the driver to send
frames from the queues using release_buffered_frames.
The driver will tell the fw to let frames out even if the station
is asleep. This is done by iwl_mvm_sta_modify_sleep_tx_count.

Reported-and-tested-by: Jens Axboe <axboe@kernel.dk>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-16 09:53:39 +02:00
Lior David
b8c31b5d6c wil6210: add oob_mode for AP certification
Add a new value to the oob_mode module parameter for
supporting AP certification.
All enabled values of oob_mode (>0) are intended only
for debugging and diagnostics.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:40 +02:00
Dedy Lansky
3b56c15fa3 wil6210: correctly report locally generated disconnect in STA mode
Driver always invoke cfg80211_disconnected() with locally_generated as
false.
Fix this by reporting true whenever the disconnect is triggered from
upper layers (cfg80211) or from within the driver itself (reset,
deinit).

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:36 +02:00
Dedy Lansky
628639b1c9 wil6210: use WMI_DISCONNECT_CMDID upon connect timeout
Upon connect timeout driver invokes _wil6210_disconnect() which iterates
over sta array and disconnects each connected sta. In practice, because
the connection is still ongoing and because cid is not yet allocated,
disconnect is not actually happening. This leaves FW in connecting
state while driver is in disconnected state.
To fix this, upon connect timeout, explicitly send WMI_DISCONNECT_CMDID
to FW to make sure it gets disconnected.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:32 +02:00
Hamad Kadmany
f6b29b6585 wil6210: protect list of pending wmi events during flush
When flush is done, pending events list is manipulated
without taking the proper spinlock, which could lead to
memory corruption if list is manipulated by wmi worker
or by interrupt routine.

Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:27 +02:00
Dedy Lansky
bcdd49b074 wil6210: store bss object and use cfg80211_connect_bss()
In a fast disconnect/connect sequence, cfg80211_connect_result() can
fail to find the bss object which the driver is connecting to. Detailed
sequence of events:
* Driver is connected in STA mode
* Disconnect request arrives from user space. Driver disconnects and
  calls cfg80211_disconnected() which adds new event to the
  cfg80211_wq worker thread
* Connect request arrives from user space. cfg80211_connect() stores
  ssid/ssid_len and calls rdev_connect()
* __cfg80211_disconnected() runs in worker thread and zero
  wdev->ssid_len
* Connect succeeds. Driver calls cfg80211_connect_result() which fails
  to find the bss because wdev->ssid_len is zero

To overcome this, upon connect request, store the bss object in the
driver and upon connect completion pass it to kernel using
cfg80211_connect_bss().

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:23 +02:00
Maya Erez
18618a9fba wil6210: missing reinit_completion in HALP voting
After setting HALP ICR bit, we keep it set until HALP unvote.
Masking HALP ICR should protect the driver from hitting the HALP ICR
over and over again. However, in case there is another MISC ICR
we will read the HALP ICR and issue a completion. This can lead to
a case where HALP voting is completed immediately, as the completion
is already set.
Reinit the HALP completion before the actual vote will clear previous
completions and protect from such cases.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:18 +02:00
Dedy Lansky
5eb443e9af wil6210: use print_hex_dump_debug instead of print_hex_dump_bytes
Some dynamic debug printouts in driver are using print_hex_dump_bytes.
However, with dynamic debug disabled, print_hex_dump_bytes outputs to
log unconditionally.
Use print_hex_dump_debug instead to prevent log pollution when dynamic
debug disabled.

Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:14 +02:00
Lior David
9953a782f9 wil6210: bus_request platform operation refinement
The driver uses the bus_request platform operation to
request resources from the platform for a specific bandwidth.
Currently the driver requests resources for the maximum
theoretical bandwidth, when interface is brought up.
Refine this process a bit: now the driver will request a
small amount of resources when interface is up, and will only
issue the maximum request when connected.
This mechanism will be improved further in the future to make
more refined requests based on actual bandwidth.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:09 +02:00
Lior David
4a0e45a783 wil6210: do not start regular scan on stopped p2p device
The driver should not allow starting any type of scan on a stopped
P2P device. Current implementation only checked social scan.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:04 +02:00
Hamad Kadmany
f2de576dcf wil6210: set dma mask to reflect device capability
device supports 48bit addresses, reflect that by
setting the dma mask accordingly.

Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:04:00 +02:00
Christophe Jaillet
4aa2d31f5d wcn36xx: Fix error handling
Reorder 'out_free_dxe_pool' and 'out_free_dxe_ctl' error handling labels
in order to match the way resources have been allocated.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:01:16 +02:00
Mohammed Shafi Shajakhan
c73f8c0033 ath10k: fix a warning during channel switch with multiple vaps
Doing a channel switch via hostapd_cli seems to update
the new channel context for each VAP's appropriately as below
in 'ath10k_mac_update_vif_chan', hence we can safely suppress the
warning that shows up during this operation and dump the warning only
if no vaps are available for channel switch

hostapd_cli -i wlan0 chan_switch 5 5200
OK

ath10k_pci : mac chanctx switch n_vifs 3 mode 1
ath10k_pci : mac chanctx switch vdev_id 2 freq 5180->5200 width 0->0
ath10k_pci : mac chanctx switch vdev_id 1 freq 5180->5200 width 0->0
ath10k_pci : mac chanctx switch vdev_id 0 freq 5180->5200 width 0->0

Call Trace:

WARNING: backports-20161201-3.14.77-9ab3068/drivers/net/wireless/ath/ath10k/mac.c:7126
[<c022f2d4>] (warn_slowpath_null) from [<bf7f150c>]
(ath10k_reconfig_complete+0xe4/0x25c [ath10k_core])
[<bf7f150c>] (ath10k_reconfig_complete [ath10k_core])
[<bf7f35f0>] (ath10k_mac_vif_ap_csa_work+0x214/0x370 [ath10k_core])
[<bf7f38b8>] (ath10k_mac_op_change_chanctx+0x108/0x128 [ath10k_core])
[<bf782ac0>] (ieee80211_recalc_chanctx_min_def+0x30c/0x430 [mac80211])
[<bf7830a4>] (ieee80211_recalc_smps_chanctx+0x2ec/0x840 [mac80211])
[<bf7843e8>] (ieee80211_vif_use_reserved_context+0x7c/0xf8 [mac80211])
[<bf7843e8>] (ieee80211_vif_use_reserved_context [mac80211])
[<bf76e5d4>] (ieee80211_csa_finalize_work+0x5c/0x88 [mac80211])

Fixes: d7bf4b4aba ("ath10k: fix ar->rx_channel updating logic")
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 10:00:33 +02:00
Dmitry Tunin
16ff1fb0e3 ath9k_htc: Add support of AirTies 1eda:2315 AR9271 device
T:  Bus=01 Lev=02 Prnt=02 Port=02 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs=  1
P:  Vendor=1eda ProdID=2315 Rev=01.08
S:  Manufacturer=ATHEROS
S:  Product=USB2.0 WLAN
S:  SerialNumber=12345
C:  #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 6 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 09:57:30 +02:00
Ryan Hsu
912b6e8850 ath10k: improve the firmware download time for QCA9377
QCA9377 is the family of QCA61x4 which shared the same procedure
to enable the hardware clock that could improve the firmware download time.

Signed-off-by: Ryan Hsu <ryanhsu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 09:55:54 +02:00
Ryan Hsu
583a662943 ath10k: improve the firmware download time for QCA6174
Len Brown reported the system resume time is taking more than 2 seconds in
bug - https://bugzilla.kernel.org/show_bug.cgi?id=185621.

The reason of the 2 seconds is due to the firmware download time.

The chip is booted up in the default reference clock speed to handle the
firmware download to chip memory and advanced to the support higher speed
clock to run the firmware after all. The default reference clock in the
hardware is slow so that the firmware download time is taking up to 2
seconds for a 600KB firmware file.

	[76796.349701] ath10k_pci : boot uploading firmware image len 688691
	[76798.334612] ath10k_pci : htt tx max num pending tx 1056

The resolution here is to enable the higher speed clock if the hardware
supported before the firmware download at BMI stage, so that the hardware
can handle the firmare download in a more efficient way. This can help to
improve the firmware download time from 2 seconds to around 500ms for the
same 600KB firmware file.

	[322858.577919] ath10k_pci boot uploading firmware image len 688691
	[322859.093094] ath10k_pci htt tx max num pending tx 1056

The steps to advance to the higher speed clock is very hardware specific,
so adding the hardware ops for the hardware that can support this.

Reported-by: Len Brown <lenb@kernel.org>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Ryan Hsu <ryanhsu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-03-09 09:55:48 +02:00
Colin Ian King
3e062eb21d rtlwifi: fix spelling mistake: "conuntry" -> "country"
trivial fix to spelling mistake in RT_TRACE message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:07:32 +02:00
Nils Holland
3beb27028c rtl8187: Enable monitor mode to fix multicast reception
The rtl8187 cards don't seem to receive multicast frames, which,
among other things, makes them fail to receive RAs in IPv6 networks.
The cause seems to be that the RTL818X_RX_CONF_MULTICAST flag doesn't
have the desired effect.

Fix the issue by setting RTL818X_RX_CONF_MONITOR instead, which puts the
card into monitor mode and resolves the problem so that multicast frames
are sucessfully passed to the kernel.

The existence of the problem and the effectiveness of the solution has
originally been confirmed on an 8187B based card with the USB id of
0bda:8197. Subsequent testing by Larry Finger on an 8187L based card,
which follows the second (8187, i.e. "non-b") code path in the driver,
has confirmed that the fix does not cause any noticeable regresssions
there either.

Signed-off-by: Nils Holland <nholland@tisys.org>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:07:10 +02:00
Stanislaw Gruszka
dd35cc0896 rt2x00: fix rt2x00debug_dump_frame comment
Reported-by: Jeroen Roovers <jer@airfi.aero>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:54 +02:00
Stanislaw Gruszka
fb47ada8dc rt2800: use TXOP_BACKOFF for probe frames
Even if we do not set AMPDU bit in TXWI, device still can aggregate
frame and send it with rate not corresponding to requested. That mean
we can do not sent probe frames with requested rate. To prevent that
use TXOP_BACKOFF for probe frames.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:53 +02:00
Stanislaw Gruszka
9d7a7a4d2b rt2800: status based rate flags for nomatch case
We use skb_desc->tx_rate_flags from entry as rate[].flags even if
skb does not match status. Patch corrects flags and also fixes
mcs for legacy rates.

rt2800_rate_from_status() is based on Felix's mt76
mt76x2_mac_process_tx_rate() function.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:53 +02:00
Stanislaw Gruszka
293dff78ee rt2x00: use txdone_nomatch on rt2800usb
If we do not match skb entry, provide tx status via nomatch procedure.

Currently in that case we do rt2x00lib_txdone_noinfo(TXDONE_NOINFO),
which actually assume that entry->skb was posted without retries and
provide rate saved in skb desc as successful. Patch changed that to
rate read from TX_STAT_FIFO, however still do not provide correct
number of retries.

On SoC/PCI devices we keep providing status via standard txdone
procedure, no change in those devices, though we should thing about it.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:52 +02:00
Stanislaw Gruszka
ec80ad70d7 rt2x00: fixup fill_tx_status for nomatch case
Add bits rt2x00lib_fill_tx_status() when filling status in nomatch
case and hopefully do not break the function for existing cases.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:52 +02:00
Stanislaw Gruszka
a09305d052 rt2x00: add txdone nomatch function
This txdone nomatch function will be used when we get status from the HW,
but we could not match it with any sent skb.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:51 +02:00
Stanislaw Gruszka
56646adf9c rt2x00: separte clearing entry from rt2x00lib_txdone
This makes rt2x00lib_txdone a bit simpler and will allow to reuse
code in different variant of txdone which I'm preparing.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:51 +02:00
Stanislaw Gruszka
5edb05afeb rt2x00: separte filling tx status from rt2x00lib_txdone
This makes rt2x00lib_txdone a bit simpler and will allow to reuse code
in different variant of txdone which I'm preparing.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:51 +02:00
Stanislaw Gruszka
a13d985f26 rt2800: identify station based on status WCID
Add framework to identify sta based on tx status WCID. This is currently
not used, will start be utilized in the future patch.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:50 +02:00
Gabor Juhos
96609f366c rt2x00: rt2800lib: move rt2800_drv_data declaration into rt2800lib.h
The rt2800_drv_data structure contains driver specific
information. Move the declaration into the rt2800lib.h
header which is a more logical place for it. Also fix
the comment style to avoid checkpatch warning.

The patch contains no functional changes, it is in
preparation for the next patch.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08 17:05:50 +02:00
Linus Torvalds
8d70eeb84a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix double-free in batman-adv, from Sven Eckelmann.

 2) Fix packet stats for fast-RX path, from Joannes Berg.

 3) Netfilter's ip_route_me_harder() doesn't handle request sockets
    properly, fix from Florian Westphal.

 4) Fix sendmsg deadlock in rxrpc, from David Howells.

 5) Add missing RCU locking to transport hashtable scan, from Xin Long.

 6) Fix potential packet loss in mlxsw driver, from Ido Schimmel.

 7) Fix race in NAPI handling between poll handlers and busy polling,
    from Eric Dumazet.

 8) TX path in vxlan and geneve need proper RCU locking, from Jakub
    Kicinski.

 9) SYN processing in DCCP and TCP need to disable BH, from Eric
    Dumazet.

10) Properly handle net_enable_timestamp() being invoked from IRQ
    context, also from Eric Dumazet.

11) Fix crash on device-tree systems in xgene driver, from Alban Bedel.

12) Do not call sk_free() on a locked socket, from Arnaldo Carvalho de
    Melo.

13) Fix use-after-free in netvsc driver, from Dexuan Cui.

14) Fix max MTU setting in bonding driver, from WANG Cong.

15) xen-netback hash table can be allocated from softirq context, so use
    GFP_ATOMIC. From Anoob Soman.

16) Fix MAC address change bug in bgmac driver, from Hari Vyas.

17) strparser needs to destroy strp_wq on module exit, from WANG Cong.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits)
  strparser: destroy workqueue on module exit
  sfc: fix IPID endianness in TSOv2
  sfc: avoid max() in array size
  rds: remove unnecessary returned value check
  rxrpc: Fix potential NULL-pointer exception
  nfp: correct DMA direction in XDP DMA sync
  nfp: don't tell FW about the reserved buffer space
  net: ethernet: bgmac: mac address change bug
  net: ethernet: bgmac: init sequence bug
  xen-netback: don't vfree() queues under spinlock
  xen-netback: keep a local pointer for vif in backend_disconnect()
  netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails
  netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups
  netfilter: nf_conntrack_sip: fix wrong memory initialisation
  can: flexcan: fix typo in comment
  can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
  can: gs_usb: fix coding style
  can: gs_usb: Don't use stack memory for USB transfers
  ixgbe: Limit use of 2K buffers on architectures with 256B or larger cache lines
  ixgbe: update the rss key on h/w, when ethtool ask for it
  ...
2017-03-04 17:31:39 -08:00
David S. Miller
35576ee17f This contains just the average.h change in order to get it
into the tree before adding new users through -next trees.
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Merge tag 'mac80211-for-davem-2017-03-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
This contains just the average.h change in order to get it
into the tree before adding new users through -next trees.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-02 14:39:17 -08:00
David S. Miller
1c296a3ea8 wireless-drivers fixes for 4.11
Add back a fixed version of an ath10k patch which was reverted during
 the merge window.
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Merge tag 'wireless-drivers-for-davem-2017-03-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.11

Add back a fixed version of an ath10k patch which was reverted during
the merge window.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-02 14:38:42 -08:00
Waldemar Rymarkiewicz
1657b8f84e ath10k: search SMBIOS for OEM board file extension
Board Data File (BDF) is loaded upon driver boot-up procedure. The right
board data file is identified, among others, by device and sybsystem ids.

The problem, however, can occur when the (default) board data file cannot
fulfill with the vendor requirements and it is necessary to use a different
board data file.

To solve the issue QCA uses SMBIOS type 0xF8 to store Board Data File Name
Extension to specify the extension/variant name. The driver will take the
extension suffix into consideration and will load the right (non-default)
board data file if necessary.

If it is unnecessary to use extension board data file, please leave the
SMBIOS field blank and default configuration will be used.

Example:
If a default board data file for a specific board is identified by a string
      "bus=pci,vendor=168c,device=003e,subsystem-vendor=1028,
       subsystem-device=0310"
then the OEM specific data file, if used, could be identified by variant
suffix:
      "bus=pci,vendor=168c,device=003e,subsystem-vendor=1028,
       subsystem-device=0310,variant=DE_1AB"

If board data file name extension is set but board-2.bin does not contain
board data file for the variant, the driver will fallback to the default
board data file not to break backward compatibility.

This was first applied in commit f2593cb1b2 ("ath10k: Search SMBIOS for OEM
board file extension") but later reverted in commit 005c3490e9 ("Revert
"ath10k: Search SMBIOS for OEM board file extension"". This patch is now
otherwise the same as commit f2593cb1b2 except the regression fixed.

Signed-off-by: Waldemar Rymarkiewicz <ext.waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-02 10:48:41 +02:00
Ingo Molnar
174cd4b1e5 sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
Fix up affected files that include this signal functionality via sched.h.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:32 +01:00
Ingo Molnar
3f07c01441 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/signal.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:29 +01:00
Johannes Berg
eb1e011a14 average: change to declare precision, not factor
Declaring the factor is counter-intuitive, and people are prone
to using small(-ish) values even when that makes no sense.

Change the DECLARE_EWMA() macro to take the fractional precision,
in bits, rather than a factor, and update all users.

While at it, add some more documentation.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-02 08:32:46 +01:00
David S. Miller
16c54ac903 First round of fixes - details in the commits:
* use a valid hrtimer clock ID in mac80211_hwsim
  * don't reorder frames prior to BA session
  * flush a delayed work at suspend so the state is all valid before
    suspend/resume
  * fix packet statistics in fast-RX, the RX packets
    counter increment was simply missing
  * don't try to re-transmit filtered frames in an aggregation session
  * shorten (for tracing) a debug message
  * typo fix in another debug message
  * fix nul-termination with HWSIM_ATTR_RADIO_NAME in hwsim
  * fix mgmt RX processing when station is looked up by driver/device
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Merge tag 'mac80211-for-davem-2017-02-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
First round of fixes - details in the commits:
 * use a valid hrtimer clock ID in mac80211_hwsim
 * don't reorder frames prior to BA session
 * flush a delayed work at suspend so the state is all valid before
   suspend/resume
 * fix packet statistics in fast-RX, the RX packets
   counter increment was simply missing
 * don't try to re-transmit filtered frames in an aggregation session
 * shorten (for tracing) a debug message
 * typo fix in another debug message
 * fix nul-termination with HWSIM_ATTR_RADIO_NAME in hwsim
 * fix mgmt RX processing when station is looked up by driver/device
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-01 15:08:34 -08:00
Linus Torvalds
cf393195c3 Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax
Pull IDR rewrite from Matthew Wilcox:
 "The most significant part of the following is the patch to rewrite the
  IDR & IDA to be clients of the radix tree. But there's much more,
  including an enhancement of the IDA to be significantly more space
  efficient, an IDR & IDA test suite, some improvements to the IDR API
  (and driver changes to take advantage of those improvements), several
  improvements to the radix tree test suite and RCU annotations.

  The IDR & IDA rewrite had a good spin in linux-next and Andrew's tree
  for most of the last cycle. Coupled with the IDR test suite, I feel
  pretty confident that any remaining bugs are quite hard to hit. 0-day
  did a great job of watching my git tree and pointing out problems; as
  it hit them, I added new test-cases to be sure not to be caught the
  same way twice"

Willy goes on to expand a bit on the IDR rewrite rationale:
 "The radix tree and the IDR use very similar data structures.

  Merging the two codebases lets us share the memory allocation pools,
  and results in a net deletion of 500 lines of code. It also opens up
  the possibility of exposing more of the features of the radix tree to
  users of the IDR (and I have some interesting patches along those
  lines waiting for 4.12)

  It also shrinks the size of the 'struct idr' from 40 bytes to 24 which
  will shrink a fair few data structures that embed an IDR"

* 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax: (32 commits)
  radix tree test suite: Add config option for map shift
  idr: Add missing __rcu annotations
  radix-tree: Fix __rcu annotations
  radix-tree: Add rcu_dereference and rcu_assign_pointer calls
  radix tree test suite: Run iteration tests for longer
  radix tree test suite: Fix split/join memory leaks
  radix tree test suite: Fix leaks in regression2.c
  radix tree test suite: Fix leaky tests
  radix tree test suite: Enable address sanitizer
  radix_tree_iter_resume: Fix out of bounds error
  radix-tree: Store a pointer to the root in each node
  radix-tree: Chain preallocated nodes through ->parent
  radix tree test suite: Dial down verbosity with -v
  radix tree test suite: Introduce kmalloc_verbose
  idr: Return the deleted entry from idr_remove
  radix tree test suite: Build separate binaries for some tests
  ida: Use exceptional entries for small IDAs
  ida: Move ida_bitmap to a percpu variable
  Reimplement IDR and IDA using the radix tree
  radix-tree: Add radix_tree_iter_delete
  ...
2017-02-28 20:29:41 -08:00
Alexey Dobriyan
5b5e0928f7 lib/vsprintf.c: remove %Z support
Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.

Use BUILD_BUG_ON in a couple ATM drivers.

In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement.  Hopefully this patch inspires
someone else to trim vsprintf.c more.

Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
1cce200081 scripts/spelling.txt: add "deintialize(d)" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  deintializing||deinitializing
  deintialize||deinitialize
  deintialized||deinitialized

Link: http://lkml.kernel.org/r/1481573103-11329-28-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
66f0044908 scripts/spelling.txt: add "disassocation" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  disassocation||disassociation

Link: http://lkml.kernel.org/r/1481573103-11329-27-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
2c14960100 scripts/spelling.txt: add "configuartion" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  configuartion||configuration

While we are here, fix the "ouput" as well in the touched hunk in
drivers/media/dvb-frontends/drx39xyj/drx_driver.h.

Link: http://lkml.kernel.org/r/1481573103-11329-23-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
183b8021fc scripts/spelling.txt: add "intialization" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  intialization||initialization

The "inintialization" in drivers/acpi/spcr.c is a different pattern but
I fixed it as well in this commit.

Link: http://lkml.kernel.org/r/1481573103-11329-16-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
550116d21a scripts/spelling.txt: add "aligment" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  aligment||alignment

I did not touch the "N_BYTE_ALIGMENT" macro in
drivers/net/wireless/realtek/rtlwifi/wifi.h to avoid unpredictable
impact.

I fixed "_aligment_handler" in arch/openrisc/kernel/entry.S because
it is surrounded by #if 0 ... #endif.  It is surely safe and I
confirmed "_alignment_handler" is correct.

I also fixed the "controler" I found in the same hunk in
arch/openrisc/kernel/head.S.

Link: http://lkml.kernel.org/r/1481573103-11329-8-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
08a7e621ff scripts/spelling.txt: add "swith" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  swith||switch
  swithable||switchable
  swithed||switched
  swithing||switching

While we are here, fix the "update" to "updates" in the touched hunk in
drivers/net/wireless/marvell/mwifiex/wmm.c.

Link: http://lkml.kernel.org/r/1481573103-11329-2-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Johannes Berg
ff4dd73dd2 mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length
Unfortunately, the nla policy was defined to have HWSIM_ATTR_RADIO_NAME
as an NLA_STRING, rather than NLA_NUL_STRING, so we can't use it as a
NUL-terminated string in the kernel.

Rather than break the API, kasprintf() the string to a new buffer to
guarantee NUL termination.

Reported-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-27 17:15:28 +01:00
Thomas Gleixner
8fbcfeb8a9 mac80211_hwsim: Replace bogus hrtimer clockid
mac80211_hwsim initializes a hrtimer with clockid
CLOCK_MONOTONIC_RAW. That's not supported.

Use CLOCK_MONOTONIC instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-27 14:04:39 +01:00
Thomas Gleixner
915f3e3f76 mac80211_hwsim: Replace bogus hrtimer clockid
mac80211_hwsim initializes a hrtimer with clockid CLOCK_MONOTONIC_RAW.
That's not supported.

Use CLOCK_MONOTNIC instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-25 09:48:16 -08:00
Kalle Valo
005c3490e9 Revert "ath10k: Search SMBIOS for OEM board file extension"
This reverts commit f2593cb1b2.

Paul reported that this patch with older board-2.bin ath10k initialisation
fails on Dell XPS 13:

ath10k_pci 0000:3a:00.0: failed to fetch board data for bus=pci,vendor=168c,
device=003e,subsystem-vendor=1a56,subsystem-device=1535,variant=RV_0520 from
ath10k/QCA6174/hw3.0/board-2.bin

The reason is that the older board-2.bin does not have the variant version of
the image name and ath10k does not fallback to the older naming scheme.

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=185621#c9
Fixes: f2593cb1b2 ("ath10k: Search SMBIOS for OEM board file extension")
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 15:59:45 -05:00
Kalle Valo
b065d3f59f Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.11. Major changes:

ath10k

* when trying older firmware versions don't confuse user with error messages

ath9k

* fix crash in AP mode (regression)
* fix relayfs crash (regression)
* fix initialisation with AR9340 and AR9550
2017-02-15 16:01:04 +02:00
Christian Lamparter
c9f1e32600 ath9k: use correct OTP register offsets for the AR9340 and AR9550
This patch fixes the OTP register definitions for the AR934x and AR9550
WMAC SoC.

Previously, the ath9k driver was unable to initialize the integrated
WMAC on an Aerohive AP121:

| ath: phy0: timeout (1000 us) on reg 0x30018: 0xbadc0ffe & 0x00000007 != 0x00000004
| ath: phy0: timeout (1000 us) on reg 0x30018: 0xbadc0ffe & 0x00000007 != 0x00000004
| ath: phy0: Unable to initialize hardware; initialization status: -5
| ath9k ar934x_wmac: failed to initialize device
| ath9k: probe of ar934x_wmac failed with error -5

It turns out that the AR9300_OTP_STATUS and AR9300_OTP_DATA
definitions contain a typo.

Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: stable@vger.kernel.org
Fixes: add295a4af "ath9k: use correct OTP register offsets for AR9550"
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-15 11:20:43 +02:00
Arnd Bergmann
7272416609 rt2500usb: don't mark register accesses as inline
When CONFIG_KASAN is set, we get a rather large stack here:

drivers/net/wireless/ralink/rt2x00/rt2500usb.c: In function 'rt2500usb_set_device_state':
drivers/net/wireless/ralink/rt2x00/rt2500usb.c:1074:1: error: the frame size of 3032 bytes is larger than 100 bytes [-Werror=frame-larger-than=]

If we don't force those functions to be inline, the compiler can figure this
out better itself and not inline the functions when doing so would be harmful,
reducing the stack size to a merge 256 bytes.

Note that there is another problem that manifests in this driver, as a result
of the typecheck() macro causing even larger stack frames.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:16:00 +02:00
Tobias Klauser
91b632803e brcmfmac: Use net_device_stats from struct net_device
Instead of using a private copy of struct net_device_stats in struct
brcm_if, use stats from struct net_device.  Also remove the now
unnecessary .ndo_get_stats function.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:15:16 +02:00
Larry Finger
b686784d03 rtlwifi: btcoexist: Fix if == else warnings in halbtc8723b1ant.c
The 0-DAY kernel test infrastructure reports the following:
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c:1875:2-4: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c:2253:3-5: WARNING: possible condition with no effect (if == else)

Reported-by: kbuild-all@01.org
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:14:44 +02:00
Larry Finger
42e74946f0 rtlwifi: btcoexist: Fix if == else warnings in halbtc8821a1ant.c
The 0-DAY kernel test infrastructure reports the following:
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:1771:1-3: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:2126:3-5: WARNING: possible condition with no effect (if == else)

Reported-by: kbuild-all@01.org
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:14:44 +02:00
Larry Finger
ac0ca72c6f rtlwifi: btcoexist: Fix if == else warnings in halbtc8821a2ant.c
The 0-DAY kernel test infrastructure reports the following:
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3023:1-3: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3035:2-4: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3037:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3047:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3075:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3085:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3129:1-3: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3141:2-4: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3143:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3153:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3179:2-4: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3181:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3192:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2677:1-3: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2833:1-3: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2847:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2857:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2885:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2895:3-5: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2940:1-3: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2788:2-4: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2391:2-4: WARNING: possible condition with no effect (if == else)
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2417:2-4: WARNING: possible condition with no effect (if == else)

Reported-by: kbuild-all@01.org
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:14:43 +02:00
Brian Norris
2447e2cad7 mwifiex: don't enable/disable IRQ 0 during suspend/resume
If we don't have an out-of-band wakeup IRQ configured through DT (as
most platforms don't), then we fall out of this function with
'irq_wakeup == 0'. Other code (e.g., mwifiex_disable_wake() and
mwifiex_enable_wake()) treats 'irq_wakeup >= 0' as a valid IRQ, and so
we end up calling {enable,disable}_irq() on IRQ 0.

That seems bad, so let's not do that.

Same problem as fixed in this patch:

https://patchwork.kernel.org/patch/9531693/
[PATCH v2 2/3] btmrvl: set irq_bt to -1 when failed to parse it

with the difference that:
(a) this one is actually a regression and
(b) this affects both device tree and non-device-tree systems

While fixing the regression, also drop the verbosity on the parse
failure, so we don't see this when a DT node is present but doesn't have
an interrupt property (this is perfectly legal):

[   21.999000] mwifiex_pcie 0000:01:00.0: fail to parse irq_wakeup from device tree

Fixes: 853402a008 ("mwifiex: Enable WoWLAN for both sdio and pcie")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:14:10 +02:00
Tobias Klauser
3a6282045b orinoco: Use net_device_stats from struct net_device
Instead of using a private copy of struct net_device_stats in
struct orinoco_private, use stats from struct net_device. Also remove
the now unnecessary .ndo_get_stats function.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:13:04 +02:00
Julia Lawall
7546bba385 rtlwifi: btcoexist: fix semicolon.cocci warnings
Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:12:06 +02:00
Iain Hunter
1f8665320f wlcore: disable multicast filter in AP mode
Enable AP support for allmulticast for MDNS. It can be enabled by bringing
up the interface with ip command with argument allmulticast on

Signed-off-by: Iain Hunter <i-hunter1@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-15 11:10:41 +02:00
Sven Eckelmann
07460b92db ath9k: Access rchan::buf only with per_cpu helper
The relayfs was changed to use per CPU constructs to handle the rchan
buffers. But the users of the rchan buffers in other parts of the kernel
were not modified. This caused crashes like

  BUG: unable to handle kernel paging request at 00003a5198a0b910
  IP: [<ffffffffa973cb3a>] ath_cmn_process_fft+0xea/0x610
  PGD 0 [  179.522449]
  Oops: 0000 [#1] SMP
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.0-rc5 #1
  [...]
  Call Trace:
   <IRQ> [  179.656426]  [<ffffffffa9704373>] ? ath_rx_tasklet+0x2f3/0xd10
   [<ffffffffa9702106>] ? ath9k_tasklet+0x1b6/0x230
   [<ffffffffa90dcbd1>] ? tasklet_action+0xf1/0x100
   [<ffffffffa9a3cb3f>] ? __do_softirq+0xef/0x284
   [<ffffffffa90dd22e>] ? irq_exit+0xae/0xb0
   [<ffffffffa9a3c89f>] ? do_IRQ+0x4f/0xd0
   [<ffffffffa9a3aa42>] ? common_interrupt+0x82/0x82
   <EOI> [  179.703152]  [<ffffffffa9a39c1d>] ? poll_idle+0x2d/0x57
   [<ffffffffa908c845>] ? sched_clock+0x5/0x10
   [<ffffffffa97bc8d6>] ? cpuidle_enter_state+0xf6/0x2d0
   [<ffffffffa911988e>] ? cpu_startup_entry+0x14e/0x230
   [<ffffffffaa3cdf70>] ? start_kernel+0x461/0x481
   [<ffffffffaa3cd120>] ? early_idt_handler_array+0x120/0x120
   [<ffffffffaa3cd413>] ? x86_64_start_kernel+0x14c/0x170
  Code: 31 db 41 be ff ff ff ff 4c 8b 26 48 8b 6e 08 49 8b 84 24 60 05 00
        00 48 8b 00 0f b7 40 04 66 89 44 24 48 eb 11 48 8b 55 40 48 98 <48>
        8b 3c c2 e8 ad a0 a4 ff 01 c3 41 8d 56 01 be 00 02 00 00 48
  RIP  [<ffffffffa973cb3a>] ath_cmn_process_fft+0xea/0x610
   RSP <ffff9b43e7003d20>
  CR2: 00003a5198a0b910

Fixes: 017c59c042 ("relay: Use per CPU constructs for the relay channel buffer pointers")
Cc: Akash Goel <akash.goel@intel.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Reported-by: Mathias Kretschmer <mathias.kretschmer@fit.fraunhofer.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:59:24 +02:00
Felix Fietkau
a6e56d749f ath9k: clean up and fix ath_tx_count_airtime
ath_tx_count_airtime is doing a lot of unnecessary work:

- Redundant station lookup
- Redundant rcu_read_lock/unlock
- Useless memcpy of bf->rates
- Useless NULL check of bf->bf_mpdu
- Redundant lookup of the skb tid

Additionally, it tries to look up the mac80211 queue index from the txq,
which fails if the frame was delivered via the power save queue.

This patch fixes all of these issues by passing down the right set of
pointers instead of doing extra work

Cc: stable@vger.kernel.org
Fixes: 63fefa0504 ("ath9k: Introduce airtime fairness scheduling between stations")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:58:33 +02:00
Tobias Klauser
1235a3b66c ath6kl: Use net_device_stats from struct net_device
Instead of using a private copy of struct net_device_stats in struct
ath6kl_vif, use stats from struct net_device. Also remove the now
unnecessary .ndo_get_stats function.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:57:19 +02:00
Ryan Hsu
a532293fcb ath10k: fix the garage chars in board file name creation
The variant[] string will be valid only if the bdf_ext is set.

The string memory needs to be null-terminated to avoid the undefined garbage
appended by the subsequent board file name creation.

ath10k_pci 0000:04:00.0: failed to fetch board data for
"bus=pci,vendor=168c,device=003e,subsystem-vendor=168c,subsystem-device=3363��P�����"
from ath10k/QCA6174/hw3.0/board-2.bin

Fixes: f2593cb1b2 ("ath10k: Search SMBIOS for OEM board file extension")
Reported-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Ryan Hsu <ryanhsu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:56:45 +02:00
Kalle Valo
7be52c03bb ath10k: convert warning about non-existent OTP board id to debug message
Currently ath10k unncessarily warns about board id not available from OTP:

ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
ath10k_pci 0000:02:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
ath10k_pci 0000:02:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 1 testmode 1
ath10k_pci 0000:02:00.0: firmware ver 10.2.4.70.9-2 api 5 features no-p2p,raw-mode crc32 b8d50af5
ath10k_pci 0000:02:00.0: board id is not exist in otp, ignore it
ath10k_pci 0000:02:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
ath10k_pci 0000:02:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal otp max-sta 128 raw 0 hwcrypto 1

But not all boards have the board id in OTP so this is not a problem and no
need to confuse the user with that info. So this can be safely changed to a
debug message.

Also fix grammar in the debug message.

Fixes: d2e202c06c ("ath10k: ignore configuring the incorrect board_id")
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:52:39 +02:00
Michal Kazior
9f5bcfe933 ath10k: silence firmware file probing warnings
Firmware files are versioned to prevent older
driver instances to load unsupported firmware
blobs. This is reflected with a fallback logic
which attempts to load several firmware files.

This however produced a lot of unnecessary
warnings sometimes confusing users and leading
them to rename firmware files making things even
more confusing.

Hence use request_firmware_direct() which does not
produce extra warnings. This shouldn't really
break anything because most modern systems don't
rely on udev/hotplug helpers to load firmware
files anymore. For example it was confirmed that
LEDE does not user helper.

This also fixes a 60 second delay per _each_
unexistent firmware/calibration file with distros
which have CONFIG_FW_LOADER_USER_HELPER_FALLBACK
enabled, RHEL being a notable example. Using
ath10k with firmware-2.bin this might end up
into a five minute delay in boot.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
[kvalo@qca.qualcomm.com: add more info to the commit log]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:52:35 +02:00
Kalle Valo
310c01afae ath10k: add directory to board data error message
This way user has a better idea what file exactly is missing.
This is needed when we switch to using request_firmware_direct() which doesn't
print any errors anymore.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:52:30 +02:00
Erik Stromdahl
1c61bedc0a ath10k: fetch firmware images in a loop
To make it easier to handle minimum and maximum firmware API numbers convert
the firmware fetch functionality to a loop. If no firmware image is found print
an error with minimum and maximum API numbers and the name of firmware
directory. This is needed when we switch to using request_firmware_direct()
which doesn't print any errors anymore.

Also add a new function for creating the fw file name dynamically which makes it
easier to add new bus support, for example SDIO and USB, later.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
[kvalo@qca.qualcomm.com: remove sdio/usb part, new error message, clarify commit log]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:52:25 +02:00
Kalle Valo
1427228d58 ath10k: fix napi crash during rmmod when probe firmware fails
This fixes the below crash when ath10k probe firmware fails, NAPI polling tries
to access a rx ring resource which was never allocated. An easy way to
reproduce this is easy to remove all the firmware files, load ath10k modules
and ath10k will crash when calling 'rmmod ath10k_pci'. The fix is to call
napi_enable() from ath10k_pci_hif_start() so that it matches with
napi_disable() being called from ath10k_pci_hif_stop().

Big thanks to Mohammed Shafi Shajakhan who debugged this and provided first
version of the fix. In this patch I just fix the actual problem in pci.c
instead of having a workaround in core.c.

BUG: unable to handle kernel NULL pointer dereference at (null)
IP:  __ath10k_htt_rx_ring_fill_n+0x19/0x230 [ath10k_core]
__ath10k_htt_rx_ring_fill_n+0x19/0x230 [ath10k_core]

Call Trace:

[<ffffffffa113ec62>] ath10k_htt_rx_msdu_buff_replenish+0x42/0x90
[ath10k_core]
[<ffffffffa113f393>] ath10k_htt_txrx_compl_task+0x433/0x17d0
[ath10k_core]
[<ffffffff8114406d>] ? __wake_up_common+0x4d/0x80
[<ffffffff811349ec>] ? cpu_load_update+0xdc/0x150
[<ffffffffa119301d>] ? ath10k_pci_read32+0xd/0x10 [ath10k_pci]
[<ffffffffa1195b17>] ath10k_pci_napi_poll+0x47/0x110 [ath10k_pci]
[<ffffffff817863af>] net_rx_action+0x20f/0x370

Reported-by: Ben Greear <greearb@candelatech.com>
Fixes: 3c97f5de1f ("ath10k: implement NAPI support")
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:40:16 +02:00
Amadeusz Sławiński
6d21911356 ath10k: fix comment
I wanted to take a look and it's apparently in other header

Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:38:25 +02:00
Amadeusz Sławiński
182f1e5a62 ath10k: use size_t for len variables
cleanup to consolidate type used for len variables

Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:38:20 +02:00
Amadeusz Sławiński
56ac13bfc7 ath10k: remove ath10k_vif_to_arvif()
it adds unnecessary level of indirection, while we just access structure
field

Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:38:15 +02:00
Matthew Wilcox
d3e709e63e idr: Return the deleted entry from idr_remove
It is a relatively common idiom (8 instances) to first look up an IDR
entry, and then remove it from the tree if it is found, possibly doing
further operations upon the entry afterwards.  If we change idr_remove()
to return the removed object, all of these users can save themselves a
walk of the IDR tree.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
2017-02-13 21:44:03 -05:00
David S. Miller
0d2164af26 Some more updates:
* use shash in mac80211 crypto code where applicable
  * some documentation fixes
  * pass RSSI levels up in change notifications
  * remove unused rfkill-regulator
  * various other cleanups
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Merge tag 'mac80211-next-for-davem-2017-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Some more updates:
 * use shash in mac80211 crypto code where applicable
 * some documentation fixes
 * pass RSSI levels up in change notifications
 * remove unused rfkill-regulator
 * various other cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 14:31:51 -05:00
Russell King
7ecb6227ca net: ath5k: fix build errors when linux/phy*.h is removed from net/dsa.h
Fix these errors reported by the 0-day builder by replacing the
linux/export.h include with linux/module.h.

In file included from include/linux/platform_device.h:14:0,
                 from drivers/net/wireless/ath/ath5k/ahb.c:20:
include/linux/device.h:1463:1: warning: data definition has no type or storage class
 module_init(__driver##_init); \
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
include/linux/device.h:1463:1: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int]
 module_init(__driver##_init); \
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: warning: parameter names (without types) in function declaration
In file included from include/linux/platform_device.h:14:0,
                 from drivers/net/wireless/ath/ath5k/ahb.c:20:
include/linux/device.h:1468:1: warning: data definition has no type or storage class
 module_exit(__driver##_exit);
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
include/linux/device.h:1468:1: error: type defaults to 'int' in declaration of 'module_exit' [-Werror=implicit-int]
 module_exit(__driver##_exit);
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: warning: parameter names (without types) in function declaration
In file included from include/linux/platform_device.h:14:0,
                 from drivers/net/wireless/ath/ath5k/ahb.c:20:
drivers/net/wireless/ath/ath5k/ahb.c:233:24: warning: 'ath_ahb_driver_exit' defined but not used [-Wunused-function]
 module_platform_driver(ath_ahb_driver);
                        ^
include/linux/device.h:1464:20: note: in definition of macro 'module_driver'
 static void __exit __driver##_exit(void) \
                    ^~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:24: warning: 'ath_ahb_driver_init' defined but not used [-Wunused-function]
 module_platform_driver(ath_ahb_driver);
                        ^
include/linux/device.h:1459:19: note: in definition of macro 'module_driver'
 static int __init __driver##_init(void) \
                   ^~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 13:51:04 -05:00
David S. Miller
e3f29c4809 wireless-drivers-next patches for 4.11
Mostly smaller changeds and fixes all over, nothing really major
 standing out.
 
 Major changes:
 
 iwlwifi
 
 * work on support for new A000 devices continues
 * fix 802.11w, which was failing to due an IGTK bug
 
 ath10k
 
 * add debugfs file peer_debug_trigger for debugging firmware
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Merge tag 'wireless-drivers-next-for-davem-2017-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.11

Mostly smaller changeds and fixes all over, nothing really major
standing out.

Major changes:

iwlwifi

* work on support for new A000 devices continues
* fix 802.11w, which was failing to due an IGTK bug

ath10k

* add debugfs file peer_debug_trigger for debugging firmware
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 13:47:52 -05:00
Kalle Valo
cbda794cf1 Some patches focusing on bugfixes for v4.11:
* Fix 802.11w, which was failing to due an IGTK bug;
   * A few more bugzilla bug fixes;
   * A channel-switch race condition fix;
   * Some fixes related to suspend/resume with new HW;
   * The RF-kill saga continues;
   * And some other fixes here and there...
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Merge tag 'iwlwifi-next-for-kalle-2017-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Some patches focusing on bugfixes for v4.11:

  * Fix 802.11w, which was failing to due an IGTK bug;
  * A few more bugzilla bug fixes;
  * A channel-switch race condition fix;
  * Some fixes related to suspend/resume with new HW;
  * The RF-kill saga continues;
  * And some other fixes here and there...
2017-02-08 21:28:36 +02:00
Golan Ben-Ami
0c8d0a4770 iwlwifi: mvm: avoid exceeding the allowed print length
Divide a mfuart related print so it won't exceed the allowed
MAX_MSG_LEN (110 bytes) per print.

Fixes: 19f63c531b ("iwlwifi: mvm: support v2 of mfuart load notification")
Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:23 +02:00
Ilan Peer
cd4d23c1ea iwlwifi: mvm: Fix removal of IGTK
When removing an IGTK, iwl_mvm_send_sta_igtk() was
called before station ID was retrieved, so the function
was invoked with an invalid station ID. Fix this by first
getting the station ID.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=192411
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:23 +02:00
Goodstein, Mordechay
735a0045f9 iwlwifi: mvm: avoid race condition in ADD_STA.
The race happens when we send ADD_STA(auth->assoc) -> LQ_CMD
between the commands the FW sometimes loses the medium for AUX, and
sends a ndp to the AP and the flow becomes, ADD_STA -> send ndp -> LQ_CMD
the problem is that there's no rates yet defined for sending the ndp and
FW generates an assert.

The fix: change the order of the commands to LQ_CMD -> ADD_STA

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:22 +02:00
Avraham Stern
b45242c99f iwlwifi: mvm: Fix CSA received immediately after association
The session protection set for association is only removed when
BSS_CHANGED_BEACON_INFO is set and BSS_CHANGED_ASSOC is not set.

However, mac80211 may set both on association (in case a beacon was
already received). In this case, mac80211 will not set
BSS_CHANGED_BEACON_INFO on the next beacons because it has already
notified the beacon change, so the session protection is never removed
(until the session protection ends).

When a CSA is received within this time, the station will fail to
folllow the channel switch because it cannot schedule the time event.

Fix this by removing the session protection when
BSS_CHANGED_BEACON_INFO and BSS_CHANGED_ASSOC are both set.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:22 +02:00
Golan Ben Ami
2b18824a5d iwlwifi: pcie: set STATUS_RFKILL immediately after interrupt
Currently, when getting a RFKILL interrupt, the transport enters a flow
in which it stops the device, disables other interrupts, etc. After
stopping the device, the transport resets the hw, and sleeps. During
the sleep, a context switch occurs and host commands are sent by upper
layers (e.g. mvm) to the fw. This is possible since the op_mode layer
and the transport layer hold different mutexes.

Since the STATUS_RFKILL bit isn't set, the transport layer doesn't
recognize that RFKILL was toggled on, and no commands can actually be
sent, so it enqueues the command to the tx queue and sets a timer on
the queue.

After switching context back to stopping the device, STATUS_RFKILL is
set, and then the transport can't send the command to the fw.
This eventually results in a queue hang.

Fix this by setting STATUS_RFKILL immediately when
the interrupt is fired.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:21 +02:00
Emmanuel Grumbach
43d59a4ce7 iwlwifi: mvm: don't call << operator with a negative value
In https://bugzilla.kernel.org/show_bug.cgi?id=177341 Bob
reported a UBSAN WARNING on rs.c in iwldvm.
Fix the same bug in iwlmvm.

This because
	i = index - 1;
	for (mask = (1 << i); i >= 0; i--, mask >>= 1)

is unsafe: i could be negative and hence we can call <<
on a negative value.
This bug doesn't have any real impact since the condition
of the for loop will prevent any usage of mask.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=177341
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:21 +02:00
Emmanuel Grumbach
1aa0ec5cdf iwlwifi: dvm: don't call << operator with a negative value
In https://bugzilla.kernel.org/show_bug.cgi?id=177341 Bob
reported a UBSAN WARNING on rs.c.

Undefined behaviour in drivers/net/wireless/intel/iwlwifi/dvm/rs.c:746:18

This because
	i = index - 1;
	for (mask = (1 << i); i >= 0; i--, mask >>= 1)

is unsafe: i could be negative and hence we can call <<
on a negative value.
This bug doesn't have any real impact since the condition
of the for loop will prevent any usage of mask.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=177341
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:20 +02:00
Emmanuel Grumbach
6eac0e817a iwlwifi: make RTPM depend on EXPERT
Enabling the RTPM Kconfig option can be fairly risky.
Runtime PM must be validated against a specific platform
before it can be safely enabled. Hence, it makes no sense
for distros and other big OS vendors to enable it since
they ship code to various systems and unknown platform.

Make sure that this is hinted properly by making the
IWLWIFI_PCIE_RTPM Kconfig option depend on EXPERT.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=172411
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:20 +02:00
Emmanuel Grumbach
04fa3e680b iwlwifi: pcie: don't increment / decrement a bool
David reported that the code I added uses the decrement
and increment operator on a boolean variable.

Fix that.

Fixes: 0cd58eaab1 ("iwlwifi: pcie: allow the op_mode to block the tx queues")
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 17:54:09 +02:00
Kalle Valo
514612fc44 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.11. Major changes:

ath10k

* add debugfs file peer_debug_trigger for debugging firmware
2017-02-08 17:46:02 +02:00
Stanislaw Gruszka
cf81db30a6 rt2x00: remove queue_entry from skbdesc
queue_entry field of skbdesc is not read any more, remove it to allow
skbdesc contain other data.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:30:20 +02:00
Stanislaw Gruszka
2ceb813798 rt2x00: call entry directly in rt2x00_dump_frame
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:30:19 +02:00
Stanislaw Gruszka
80a97eae30 rt61pci: use entry directly
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:30:19 +02:00
Stanislaw Gruszka
0488a6121d rt2x00usb: fix anchor initialization
If device fail to initialize we can OOPS in rt2x00lib_remove_dev(), due
to using uninitialized usb_anchor structure:

[  855.435820] ieee80211 phy3: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x1000 with error -19
[  855.435826] ieee80211 phy3: rt2800_probe_rt: Error - Invalid RT chipset 0x0000, rev 0000 detected
[  855.435829] ieee80211 phy3: rt2x00lib_probe_dev: Error - Failed to allocate device
[  855.435845] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[  855.435900] IP: _raw_spin_lock_irq+0xd/0x30
[  855.435926] PGD 0
[  855.435953] Oops: 0002 [#1] SMP
<snip>
[  855.437011] Call Trace:
[  855.437029]  ? usb_kill_anchored_urbs+0x27/0xc0
[  855.437061]  rt2x00lib_remove_dev+0x190/0x1c0 [rt2x00lib]
[  855.437097]  rt2x00lib_probe_dev+0x246/0x7a0 [rt2x00lib]
[  855.437149]  ? ieee80211_roc_setup+0x9e/0xd0 [mac80211]
[  855.437183]  ? __kmalloc+0x1af/0x1f0
[  855.437207]  ? rt2x00usb_probe+0x13d/0xc50 [rt2x00usb]
[  855.437240]  rt2x00usb_probe+0x155/0xc50 [rt2x00usb]
[  855.437273]  rt2800usb_probe+0x15/0x20 [rt2800usb]
[  855.437304]  usb_probe_interface+0x159/0x2d0
[  855.437333]  driver_probe_device+0x2bb/0x460

Patch changes initialization sequence to fix the problem.

Cc: Vishal Thanki <vishalthanki@gmail.com>
Fixes: 8b4c000931 ("rt2x00usb: Use usb anchor to manage URB")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:29:24 +02:00
Stanislaw Gruszka
93c7018ec1 rt2x00usb: do not anchor rx and tx urb's
We might kill TX or RX urb during rt2x00usb_flush_entry(), what can
cause anchor list corruption like shown below:

[ 2074.035633] WARNING: CPU: 2 PID: 14480 at lib/list_debug.c:33 __list_add+0xac/0xc0
[ 2074.035634] list_add corruption. prev->next should be next (ffff88020f362c28), but was dead000000000100. (prev=ffff8801d161bb70).
<snip>
[ 2074.035670] Call Trace:
[ 2074.035672]  [<ffffffff813bde47>] dump_stack+0x63/0x8c
[ 2074.035674]  [<ffffffff810a2231>] __warn+0xd1/0xf0
[ 2074.035676]  [<ffffffff810a22af>] warn_slowpath_fmt+0x5f/0x80
[ 2074.035678]  [<ffffffffa073855d>] ? rt2x00usb_register_write_lock+0x3d/0x60 [rt2800usb]
[ 2074.035679]  [<ffffffff813dbe4c>] __list_add+0xac/0xc0
[ 2074.035681]  [<ffffffff81591c6c>] usb_anchor_urb+0x4c/0xa0
[ 2074.035683]  [<ffffffffa07322af>] rt2x00usb_kick_rx_entry+0xaf/0x100 [rt2x00usb]
[ 2074.035684]  [<ffffffffa0732322>] rt2x00usb_clear_entry+0x22/0x30 [rt2x00usb]

To fix do not anchor TX and RX urb's, it is not needed as during
shutdown we kill those urbs in rt2x00usb_free_entries().

Cc: Vishal Thanki <vishalthanki@gmail.com>
Fixes: 8b4c000931 ("rt2x00usb: Use usb anchor to manage URB")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:29:23 +02:00
Larry Finger
d5efe1535a rtlwifi: Move items out of rtl_pci_priv and rtl_usb_priv
In commit 6773386f97 ("rtlwifi: rtl8192c-common: Fix "BUG: KASAN:"),
a BUG detected when CONFIG_KASAN=y was fixed by reordering the layouts
of struct rtl_pci_priv, and struct rtl_usb_priv so that the variables
used by both PCI and USB drivers have the same offsets in both structs.
The better fix of relocating the critical variables into struct rtl_priv
was deferred as these changes do not have to be applied to stable
kernels.

This change also removes CamelCase variables with pLed0 => pled0.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:24:42 +02:00
Rafał Miłecki
d063055565 brcmfmac: merge two remaining brcmf_err macros
Now we always have __brcmf_err function we can do perfectly fine with
just one macro.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:23:39 +02:00
Rafał Miłecki
087fa712a0 brcmfmac: switch to C function (__brcmf_err) for printing errors
This will allow extending code and using more detailed messages e.g.
with the help of dev_err.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:23:39 +02:00
Rafał Miłecki
9587a01a7e brcmfmac: merge two brcmf_err macros into one
This allows simplifying the code by adding a simple IS_ENABLED check for
CONFIG_BRCMDB symbol.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08 17:23:38 +02:00
Johannes Berg
5524ddd4c1 ath10k: select WANT_DEV_COREDUMP
This is necessary so that - if ath10k is the only driver using
dev_coredump*() - the functionality is built into the kernel.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-08 17:01:53 +02:00
Johannes Berg
949c2d0096 wil6210: include moduleparam.h
This now declares a module parameter, so include the necessary
header file for that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-08 17:01:12 +02:00
Waldemar Rymarkiewicz
dab55d1083 ath10k: remove unneeded semicolon
Remove redundant semicolon after switch statement.

Signed-off-by: Waldemar Rymarkiewicz <ext.waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-08 17:00:31 +02:00
Emmanuel Grumbach
d45cb20e12 iwlwifi: mvm: use the PROBE_RESP_QUEUE to send deauth to unknown station
When we send a deauth to a station we don't know about, we
need to use the PROBE_RESP queue. This can happen when we
send a deauth to a station that is not associated to us.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:32 +02:00
Sara Sharon
5351f9ab25 iwlwifi: mvm: fix reorder timer re-arming
When NSSN is behind the reorder buffer due to timeout
the reorder timer isn't getting re-armed until NSSN
catches up. Fix it.

Fixes: 0690405fef ("iwlwifi: mvm: add reorder timeout per frame")

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:32 +02:00
Sara Sharon
c56108b58a iwlwifi: mvm: fix references to first_agg_queue in DQA mode
In DQA mode, first_agg_queue is initialized to
IWL_MVM_DQA_MIN_DATA_QUEUE. This causes two bugs in the tx response
flow:

1. When TX fails, we set IEEE80211_TX_STAT_AMPDU_NO_BACK regardless
   if we actually have aggregation open on the queue. This causes
   mac80211 to send a BAR frame even though there is no aggregation
   open.
   Fix that by simply checking the AMPDU flag that is set on by
   mac80211 for AMPDU packets.

2. When reclaiming frames in aggregation mode, we reclaim based on
   scheduler ssn and not the SN.
   The reason is that scheduler ssn may be ahead of SN due to a hole
   in the BA window that was filled.
   However, if we have aggregations open on IWL_MVM_DQA_BSS_CLIENT_QUEUE
   the reclaim flow will still go to the code of non-aggregation
   instead of the aggregation code since IWL_MVM_DQA_BSS_CLIENT_QUEUE
   is smaller than IWL_MVM_DQA_MIN_DATA_QUEUE, although it is a valid
   aggregation queue.
   Fix that by always using the aggregation reclaim code by default in
   DQA mode (currently it is implicitly used by default for all queues
   except the reserved BSS queue).

Fixes: cf961e1662 ("iwlwifi: mvm: support dqa-mode agg on non-shared queue")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:31 +02:00
Gregory Greenman
3374c3ab7f iwlwifi: mvm: fix a print of NSS for HT rate
Handling of the number of space time streams was missing for HT rate in
rate printing function. Fix it.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:31 +02:00
Golan Ben Ami
f4a1f04a3f iwlwifi: pcie: Re-configure IVAR table after stop device
When getting RF_KILL and disabling radio, the device gets stopped
and reset. This erases the IVAR table that matches the interrupt
to its cause, and is essential for MSIX proper functionality.
Till now, the table wasn't re-configured after the reset, and
therefore the interrupt that enabled radio didn't fire on the
right irq, and the driver didn't handle it correctly.

To fix this, configure the IVAR table again after resetting the
device.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:30 +02:00
Haim Dreyfuss
d7270d619a iwlwifi: pcie: re-configure IVAR table after suspend-resume
During the suspend/resume flow some HW blocks are reset.  This causes
the IVAR table to be completely erased.  This table is where interrupt
causes are bound to specific IRQs.  When the table is empty the
interrupt handlers are not called correctly.  Fix this by reconfiguring
the IVAR table after resume.

Fixes: 2e5d4a8f61 ("iwlwifi: pcie: Add new configuration to enable MSIX")
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:30 +02:00
Haim Dreyfuss
8373005805 iwlwifi: pcie: separate between SW and HW MSIX configuration
The MSIX configuration flow includes two different stages:
configuring the HW by writing to the IVAR table and configuring the SW
to reflect the HW configuration.
The HW configuration is needed on each HW reset,
whereas the SW configuration is only needed during the init flow.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 12:55:11 +02:00
Andrzej Zaborowski
bee427b862 cfg80211: Pass new RSSI level in CQM RSSI notification
Update the drivers to pass the RSSI level as a cfg80211_cqm_rssi_notify
parameter and pass this value to userspace in a new nl80211 attribute.
This helps both userspace and also helps in the implementation of the
multiple RSSI thresholds CQM mechanism.

Note for marvell/mwifiex I pass 0 for the RSSI value because the new
RSSI value is not available to the driver at the time of the
cfg80211_cqm_rssi_notify call, but the driver queries the new value
immediately after that, so it is actually available just a moment later
if we wanted to defer caling cfg80211_cqm_rssi_notify until that moment.
Without this, the new cfg80211 code (patch 3) will call .get_station
which will send a duplicate HostCmd_CMD_RSSI_INFO command to the hardware.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-08 10:43:40 +01:00
Andrzej Zaborowski
769f07d8f0 mac80211: Pass new RSSI level in CQM RSSI notification
Extend ieee80211_cqm_rssi_notify with a rssi_level parameter so that
this information can be passed to netlink clients in the next patch, if
available.  Most drivers will have this value at hand.  wl1251 receives
events from the firmware that only tell it whether latest measurement
is above or below threshold so we don't pass any value at this time
(parameter is 0).

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-08 10:43:04 +01:00
Haim Dreyfuss
7ca00409b5 iwlwifi: pcie: move msix conf functions above other functions
msix configuration functions should be called by other functions.
For example by pcie_d3_resume, move it above to enable it.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 10:04:09 +02:00
David S. Miller
3efa70d78f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflict was an interaction between a bug fix in the
netvsc driver in 'net' and an optimization of the RX path
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 16:29:30 -05:00
Felix Fietkau
3a5e969bb2 ath9k: fix race condition in enabling/disabling IRQs
The code currently relies on refcounting to disable IRQs from within the
IRQ handler and re-enabling them again after the tasklet has run.

However, due to race conditions sometimes the IRQ handler might be
called twice, or the tasklet may not run at all (if interrupted in the
middle of a reset).

This can cause nasty imbalances in the irq-disable refcount which will
get the driver permanently stuck until the entire radio has been stopped
and started again (ath_reset will not recover from this).

Instead of using this fragile logic, change the code to ensure that
running the irq handler during tasklet processing is safe, and leave the
refcount untouched.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 11:00:25 +02:00
Felix Fietkau
a34d0a0da1 ath9k_hw: check if the chip failed to wake up
In an RFC patch, Sven Eckelmann and Simon Wunderlich reported:

"QCA 802.11n chips (especially AR9330/AR9340) sometimes end up in a
state in which a read of AR_CFG always returns 0xdeadbeef.
This should not happen when when the power_mode of the device is
ATH9K_PM_AWAKE."

Include the check for the default register state in the existing MAC
hang check.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 11:00:21 +02:00
Felix Fietkau
d63ffc45c5 ath9k: rename tx_complete_work to hw_check_work
Also include common MAC alive check. This should make the hang checks
more reliable for modes where beacons are not sent and is used as a
starting point for further hang check improvements

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 11:00:17 +02:00
Bjorn Andersson
03c95dbef6 wcn36xx: Implement cancel_hw_scan
In the even that the wcn36xx interface is brought down while a hw_scan
is active we must abort and wait for the ongoing scan to signal
completion to mac80211.

Reported-by: Mart Raudsepp <leio@gentoo.org>
Fixes: 886039036c ("wcn36xx: Implement firmware assisted scan")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:59:26 +02:00
Ashok Raj Nagarajan
7f622593cc ath10k: fix reading sram contents for QCA4019
With QCA4019 platform, SRAM address can be accessed directly from host but
currently, we are assuming sram addresses cannot be accessed directly and
hence we convert the addresses.

While there, clean up growing hw checks during conversion of target CPU
address to CE address. Now we have function pointer pertaining to different
chips.

Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:57:49 +02:00
Tamizh chelvam
cb4281528b ath10k: fix boot failure in UTF mode/testmode
Rx filter reset and the dynamic tx switch mode (EXT_RESOURCE_CFG)
configuration are causing the following errors when UTF firmware
is loaded to the target.

Error message 1:
[ 598.015629] ath10k_pci 0001:01:00.0: failed to ping firmware: -110
[ 598.020828] ath10k_pci 0001:01:00.0: failed to reset rx filter: -110
[ 598.141556] ath10k_pci 0001:01:00.0: failed to start core (testmode): -110

Error message 2:
[ 668.615839] ath10k_ahb a000000.wifi: failed to send ext resource cfg command : -95
[ 668.618902] ath10k_ahb a000000.wifi: failed to start core (testmode): -95

Avoiding these configurations while bringing the target in
testmode is solving the problem.

Cc: stable@vger.kernel.org
Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:52:07 +02:00
Maharaja Kennadyrajan
ee8b08a1be ath10k: add debugfs support to get per peer tids log via tracing
This patch provides support to get per peer tids log.

echo 1 > /sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/
XX:XX/peer_debug_trigger

These logs will be the part of FWLOGS which we collect the logs
via tracing interface. Here we will get the peer tigd logs only
once(not repeatedly) when we write 1 to the debugfs file.

Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:49:24 +02:00
Kalle Valo
39bfe9f7c0 ath10k: few whitespace fixes
Fixes checkpatch warnings:

drivers/net/wireless/ath/ath10k/pci.c:1593: Statements should start on a tabstop
drivers/net/wireless/ath/ath10k/ce.c:962: Alignment should match open parenthesis

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:43:30 +02:00
Kalle Valo
019e4280fa ath10k: use names in function definition arguments
Fixes new checkpatch warnings:

drivers/net/wireless/ath/ath10k/htt.h:1823: function definition argument 'struct sk_buff *' should also have an identifier name
drivers/net/wireless/ath/ath10k/wmi.h:6607: function definition argument 'struct wmi_start_scan_arg *' should also have an identifier name

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:43:25 +02:00
Kalle Valo
b2d6041568 ath10k: prefer unsigned int over just unsigned
Fixes new checkpatch warnings:

drivers/net/wireless/ath/ath10k/htt.h:1639: Prefer 'unsigned int' to bare use of 'unsigned'
drivers/net/wireless/ath/ath10k/htt.h:1660: Prefer 'unsigned int' to bare use of 'unsigned'

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 10:43:21 +02:00
Larry Finger
6773386f97 rtlwifi: rtl8192c-common: Fix "BUG: KASAN:
Kernels built with CONFIG_KASAN=y report the following BUG for rtl8192cu
and rtl8192c-common:

==================================================================
BUG: KASAN: slab-out-of-bounds in rtl92c_dm_bt_coexist+0x858/0x1e40
     [rtl8192c_common] at addr ffff8801c90edb08
Read of size 1 by task kworker/0:1/38
page:ffffea0007243800 count:1 mapcount:0 mapping:          (null)
     index:0x0 compound_mapcount: 0
flags: 0x8000000000004000(head)
page dumped because: kasan: bad access detected
CPU: 0 PID: 38 Comm: kworker/0:1 Not tainted 4.9.7-gentoo #3
Hardware name: Gigabyte Technology Co., Ltd. To be filled by
     O.E.M./Z77-DS3H, BIOS F11a 11/13/2013
Workqueue: rtl92c_usb rtl_watchdog_wq_callback [rtlwifi]
  0000000000000000 ffffffff829eea33 ffff8801d7f0fa30 ffff8801c90edb08
  ffffffff824c0f09 ffff8801d4abee80 0000000000000004 0000000000000297
  ffffffffc070b57c ffff8801c7aa7c48 ffff880100000004 ffffffff000003e8
Call Trace:
  [<ffffffff829eea33>] ? dump_stack+0x5c/0x79
  [<ffffffff824c0f09>] ? kasan_report_error+0x4b9/0x4e0
  [<ffffffffc070b57c>] ? _usb_read_sync+0x15c/0x280 [rtl_usb]
  [<ffffffff824c0f75>] ? __asan_report_load1_noabort+0x45/0x50
  [<ffffffffc06d7a88>] ? rtl92c_dm_bt_coexist+0x858/0x1e40 [rtl8192c_common]
  [<ffffffffc06d7a88>] ? rtl92c_dm_bt_coexist+0x858/0x1e40 [rtl8192c_common]
  [<ffffffffc06d0cbe>] ? rtl92c_dm_rf_saving+0x96e/0x1330 [rtl8192c_common]
...

The problem is due to rtl8192ce and rtl8192cu sharing routines, and having
different layouts of struct rtl_pci_priv, which is used by rtl8192ce, and
struct rtl_usb_priv, which is used by rtl8192cu. The problem was resolved
by placing the struct bt_coexist_info at the head of each of those private
areas.

Reported-and-tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> # 4.0+
Cc: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:07:59 +02:00
Larry Finger
41880bb38a rtlwifi: btcoexist: Convert halbtcoutsrc.c to use standard debugging
The routines in btcoexist use different debugging routines than are used
in the other drivers. This patch converts halbtcoutsrc.c to use the
standard routines. It also deletes the definitions of the now-unused
debugging macros, and turns on compilation of all the routines in
btcoexist.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:40 +02:00
Larry Finger
10468c3b43 rtlwifi: btcoexist: Convert halbtc8821a2ant.c to use standard debugging
The routines in btcoexist use different debugging routines than are used
in the other drivers. This patch converts halbtc8821a2ant.c to use the
standard routines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:39 +02:00
Larry Finger
bed4ff58af rtlwifi: btcoexist: Convert halbtc8821a1ant.c to use standard debugging
The routines in btcoexist use different debugging routines than are used
in the other drivers. This patch converts halbtc8821a1ant.c to use the
standard routines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:38 +02:00
Larry Finger
2277f5f115 rtlwifi: btcoexist: Convert halbtc8723b2ant.c to use standard debugging
The routines in btcoexist use different debugging routines than are used
in the other drivers. This patch converts halbtc8723b2ant.c to use the
standard routines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:38 +02:00
Larry Finger
dd192494e6 rtlwifi: btcoexist: Convert halbtc8723b1ant.c to use standard debugging
The routines in btcoexist use different debugging routines than are used
in the other drivers. This patch converts halbtc8723b1ant.c to use the
standard routines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:37 +02:00
Larry Finger
258b93cc39 rtlwifi: btcoexist: Convert halbtc8192e2ant.c to use standard debugging
The routines in btcoexist use different debugging routines than are used
in the other drivers. This patch converts halbtc8192e2ant.c to use the
standard routines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:37 +02:00
Larry Finger
d5e582523a rtlwifi: rtl8821ae: Fix typo in symbol for bandwidth numbers
In several places, "BANDWITH" is used when "BANDWIDTH" should have been
used.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:04:36 +02:00
Ganapathi Bhat
a5b60de697 mwifiex: Avoid skipping WEP key deletion for AP
This patch fixes the issue specific to AP. AP is started with WEP
security and external station is connected to it. Data path works
in this case. Now if AP is restarted with WPA/WPA2 security,
station is able to connect but ping fails.

Driver skips the deletion of WEP keys if interface type is AP.
Removing that redundant check resolves the issue.

Fixes: e57f1734d8 ("mwifiex: add key material v2 support")
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 10:03:40 +02:00
Stanislaw Gruszka
6232c17438 rt2x00: avoid introducing a USB dependency in the rt2x00lib module
As reported by Felix:

Though protected by an ifdef, introducing an usb symbol dependency in
the rt2x00lib module is a major inconvenience for distributions that
package kernel modules split into individual packages.

Get rid of this unnecessary dependency by calling the usb related
function from a more suitable place.

Cc: Vishal Thanki <vishalthanki@gmail.com>
Reported-by: Felix Fietkau <nbd@nbd.name>
Fixes: 8b4c000931 ("rt2x00usb: Use usb anchor to manage URB")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 09:57:48 +02:00
Rafał Miłecki
0f83ff6973 brcmfmac: use wiphy_read_of_freq_limits to respect limits from DT
This new helper reads extra frequency limits specified in DT and
disables unavailable chanels. This is useful for devices (like home
routers) with chipsets limited e.g. by board design.

In order to respect info read from DT we simply need to check for
IEEE80211_CHAN_DISABLED bit when constructing channel info.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-07 09:57:07 +02:00