Commit Graph

205 Commits

Author SHA1 Message Date
David S. Miller
85eb018fec wireless-drivers-next patches for 4.11
The most notable change here is the inclusion of airtime fairness
 scheduling to ath9k. It prevents slow clients from hogging all the
 airtime and unfairly slowing down faster clients.
 
 Otherwise smaller changes and cleanup.
 
 Major changes:
 
 ath9k
 
 * cleanup eeprom endian handling
 * add airtime fairness scheduling
 
 ath10k
 
 * fix issues for new QCA9377 firmware version
 * support dev_coredump() for firmware crash dump
 * enable channel 169 on 5 GHz band
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJYalDTAAoJEG4XJFUm622ba2EH/ivoHG9CvmT6HgNw77odDr6b
 Zc7plDi2dd9LIzp3rF/9j8Ietfzpu31Pp9Qz0o1Su/s8RJIlXKVF5UeG5IignnEG
 02rv7Z+BGPW7SUNDb0cLa27PMYqUAh8vI39sxYSdQ9NQLIlpMLIxxx5iOZyAK5eV
 HBRS0pVlSxbAntb1JgWiN/LjjXe/PdhX3CR/b9b468KAcWB6UWj9nXQxFmz7d3uM
 dH3buDTgwaq7K24ZAFc1BsD7rgxprpauXxgIMWCKxRERf64WFfYkYdfdCER+PSPH
 maV5Te1KzTJBrQHDOPs1ezVe8gDUhb5YE4BJY9SppZpOE1arucq2g3+3obQUeHE=
 =DAVq
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2017-01-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

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

The most notable change here is the inclusion of airtime fairness
scheduling to ath9k. It prevents slow clients from hogging all the
airtime and unfairly slowing down faster clients.

Otherwise smaller changes and cleanup.

Major changes:

ath9k

* cleanup eeprom endian handling
* add airtime fairness scheduling

ath10k

* fix issues for new QCA9377 firmware version
* support dev_coredump() for firmware crash dump
* enable channel 169 on 5 GHz band
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-02 15:23:34 -05:00
Colin Ian King
ad334bbb07 brcmfmac: fix spelling mistakes on "Ivalid"
Trivial fixes to spelling mistake "Ivalid" to "Invalid" in
brcmf_err error messages.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-30 15:59:26 +02:00
Arend Van Spriel
2b66325d5e brcmfmac: fix uninitialized field in scheduled scan ssid configuration
The scheduled scan ssid configuration in firmware has a flags field that
was not initialized resulting in unexpected behaviour.

Fixes: e3bdb7cc0300 ("brcmfmac: fix handling ssids in .sched_scan_start() callback")
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-20 16:09:04 +02:00
Arend Van Spriel
cb853da3a3 brcmfmac: fix memory leak in brcmf_cfg80211_attach()
In brcmf_cfg80211_attach() there was one error path not properly
handled as it leaked memory allocated in brcmf_btcoex_attach().

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-20 16:09:03 +02:00
Michael S. Tsirkin
6bdf1e0efb Makefile: drop -D__CHECK_ENDIAN__ from cflags
That's the default now, no need for makefiles to set it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
2016-12-16 00:13:43 +02:00
David S. Miller
ab17cb1fea wireless-drivers-next patches for 4.10
Major changes:
 
 rsi
 
 * filter rx frames
 * configure tx power
 * make it possible to select antenna
 * support 802.11d
 
 brcmfmac
 
 * cleanup of scheduled scan code
 * support for bcm43341 chipset with different chip id
 * support rev6 of PCIe device interface
 
 ath10k
 
 * add spectral scan support for QCA6174 and QCA9377 families
 * show used tx bitrate with 10.4 firmware
 
 wil6210
 
 * add power save mode support
 * add abort scan functionality
 * add support settings retry limit for short frames
 
 bcma
 
 * add Dell Inspiron 3148
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJYQGivAAoJEG4XJFUm622bqG0IAJtSGt4Fxv2jL7GPmPpEUtYK
 F6G1PCk9LxO44rOZ15E/CT1vPk6Bnwqp9brdngmXwl7jc+jGs4MQN7g6cD4UZgPm
 gxjx8cah2HPRVgEE7PeOILthRxwPA+9klycsvwtglkgQ1SpQVmLHDTLpeOAkRluY
 olJGINoGHTD6osud6p3oKK+VP891omJvu8TPqRjhrhLhbQTWAuTxl2Gsdye30yag
 CsdaEZb9wdUEBoS80EVRwvgBzqrdKU5kGDGbuzytcyrFrRHo4flti1KgxDg3nIpI
 jC4Liwg0yE/aYZlfMqi/960rt8AttCJBDt/vwqp0mOE4IwFsE9Yaio6xXUonAC8=
 =a6a/
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2016-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.10

Major changes:

rsi

* filter rx frames
* configure tx power
* make it possible to select antenna
* support 802.11d

brcmfmac

* cleanup of scheduled scan code
* support for bcm43341 chipset with different chip id
* support rev6 of PCIe device interface

ath10k

* add spectral scan support for QCA6174 and QCA9377 families
* show used tx bitrate with 10.4 firmware

wil6210

* add power save mode support
* add abort scan functionality
* add support settings retry limit for short frames

bcma

* add Dell Inspiron 3148
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-02 13:58:10 -05:00
Arend Van Spriel
53e3a80d80 brcmfmac: fix scheduled scan result handling for newer chips
The scan results for scheduled scan as retrieved from the device
have changed. A field has been added which is not needed. However,
the appended info is. Luckily they are versioned so check that to
find out the location of the appended data.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:31 +02:00
Arend Van Spriel
c6989fd55c brcmfmac: use requested scan interval in scheduled scan
User-space can specify the interval for the scheduled scan. This
interval is found in scheduled scan plan. The driver supports only
one plan, which is legacy behaviour.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:30 +02:00
Arend Van Spriel
dfe5b0d52d brcmfmac: remove restriction from .sched_scan_start() callback
In the .sched_scan_start() callback a condition was checked whether a
normal scan was ongoing. However, there is no need for this check as
it is ok to start the scheduled scan irrespective whether or not a
normal scan is ongoing.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:30 +02:00
Arend Van Spriel
331e789443 brcmfmac: use provided channels for scheduled scan
User-space can provide list of channels in the schedule scan request.
This was ignored so all channels supported and allowed by the device
were used. This patch configures the device to use the channels as
listed in the request.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:29 +02:00
Arend Van Spriel
3e48611d31 brcmfmac: move scheduled scan activation to pno source file
Rework .sched_scan_start() callback moving actual configuration of
the device in pno source file.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:29 +02:00
Arend Van Spriel
fca6cb2f05 brcmfmac: split up brcmf_pno_config() function
The brcmf_pno_config() function handles two configurations in
firmware. Split it and have caller sort out what is needed.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:28 +02:00
Arend Van Spriel
fa85b30a90 brcmfmac: make internal escan more generic
For scheduled scan we initiate an escan in firmware to obtain more
info missing from the scheduled scan notification we get from firmware.
For upcoming functionality this is also required so make it a bit
more generic.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:27 +02:00
Arend Van Spriel
ab5981c830 brcmfmac: change prototype for brcmf_do_escan()
Reduce the number of parameters as the removed ones can be obtained
through struct brcmf_if parameter.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:27 +02:00
Arend Van Spriel
3e2e86ab19 brcmfmac: fix handling ssids in .sched_scan_start() callback
The ssids list in the scheduled scan request were not properly taken
into account when configuring in firmware. The hidden bit was set for
any ssid resulting in active scanning for all. Only set it for ssids
that are in the ssids list.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:26 +02:00
Arend Van Spriel
ac55136f43 brcmfmac: move pno helper functions in separate source file
Introducing new source file for pno related functionality. Moving
existing pno functions.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:26 +02:00
Arend Van Spriel
dc630dc5c7 brcmfmac: add support for 43341 chip
This chip was already supported, but seems a device came up giving
a different chip identifier. So adding that effectively mapping to
the same firmware file as for 43340 chip.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:25 +02:00
Franky Lin
be4b092cab brcmfmac: add pcie host dongle interface rev6 support
In rev6 of pcie host dongle interface protocol, host needs to maximum
supported ring number from dongle shared memory and set up ring buffer
and ring indices offset accordingly.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29 17:29:24 +02:00
David S. Miller
33f8a0458b wireless-drivers-next patches for 4.10
Major changes:
 
 iwlwifi
 
 * finalize and enable dynamic queue allocation
 * use dev_coredumpmsg() to prevent locking the driver
 * small fix to pass the AID to the FW
 * use FW PS decisions with multi-queue
 
 ath9k
 
 * add device tree bindings
 * switch to use mac80211 intermediate software queues to reduce
   latency and fix bufferbloat
 
 wl18xx
 
 * allow scanning in AP mode
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJYOAC4AAoJEG4XJFUm622bUYkH/3SSYp6moSdKpVnVPx7ST7yK
 t9WHR9IMZFIhD6vq8AK6+8OQr1TgGjHfPu+WZj7CIl8nu53kcgPRi51gg1mndbNg
 9N3RbVp06nGbM2VnW8ZIpg3OLIXatZ4c9g3LFvvtyobYvWGJ6W4D79JdlmTG1ELr
 XAjInbxFsgon+CwqCMOaAJx8xYp42rBnPRZZvhOq9O33kRw8Umo9UQw0s1U2Vfgx
 prxQ6d0GxNAPEe8QiDw/vtBcXWFMOhQeDl8sK70ZcojSn1FY730NsIh/Y86PcQTK
 6TsvOL5gg+rd0ln8TZRAslnDrZBAhTEDqUzLQMRJ9VjEj5RFd8eLCSIzHfaroI8=
 =4qCH
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2016-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.10

Major changes:

iwlwifi

* finalize and enable dynamic queue allocation
* use dev_coredumpmsg() to prevent locking the driver
* small fix to pass the AID to the FW
* use FW PS decisions with multi-queue

ath9k

* add device tree bindings
* switch to use mac80211 intermediate software queues to reduce
  latency and fix bufferbloat

wl18xx

* allow scanning in AP mode
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-27 20:26:59 -05:00
Tobias Regnery
4c0bfeaae9 brcmsmac: fix array out-of-bounds access in qm_log10
I get the following UBSAN warning during boot on my laptop:

================================================================================
UBSAN: Undefined behaviour in drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_qmath.c:280:21
index 32 is out of range for type 's16 [32]'
CPU: 0 PID: 879 Comm: NetworkManager Not tainted 4.9.0-rc4 #28
Hardware name: LENOVO Lenovo IdeaPad N581/INVALID, BIOS 5ECN96WW(V9.01) 03/14/2013
ffff8800b74a6478 ffffffff828e59d2 0000000041b58ab3 ffffffff8398330c
ffffffff828e5920 ffff8800b74a64a0 ffff8800b74a6450 0000000000000020
1ffffffff845848c ffffed0016e94bf1 ffffffffc22c2460 000000006b9c0514
Call Trace:
[<ffffffff828e59d2>] dump_stack+0xb2/0x110
[<ffffffff828e5920>] ? _atomic_dec_and_lock+0x150/0x150
[<ffffffff82968c9d>] ubsan_epilogue+0xd/0x4e
[<ffffffff82969875>] __ubsan_handle_out_of_bounds+0xfa/0x13e
[<ffffffff8296977b>] ? __ubsan_handle_shift_out_of_bounds+0x241/0x241
[<ffffffffc0d48379>] ? bcma_host_pci_read16+0x59/0xa0 [bcma]
[<ffffffffc0d48388>] ? bcma_host_pci_read16+0x68/0xa0 [bcma]
[<ffffffffc212ad78>] ? read_phy_reg+0xe8/0x180 [brcmsmac]
[<ffffffffc2184714>] qm_log10+0x2e4/0x350 [brcmsmac]
[<ffffffffc2142eb8>] wlc_phy_init_lcnphy+0x538/0x1f20 [brcmsmac]
[<ffffffffc2142980>] ? wlc_lcnphy_periodic_cal+0x5c0/0x5c0 [brcmsmac]
[<ffffffffc1ba0c93>] ? ieee80211_open+0xb3/0x110 [mac80211]
[<ffffffff82f73a02>] ? sk_busy_loop+0x1e2/0x840
[<ffffffff82f7a6ce>] ? __dev_change_flags+0xae/0x220
...

The report is valid: doing the math in this function, with an input value
N=63 the variable s16tableIndex gets a value of 31. This value is used as
an index in the array log_table with 32 entries. But the next line is:

	s16errorApproximation = (s16) qm_mulu16(u16offset,
				(u16) (log_table[s16tableIndex + 1] -
				       log_table[s16tableIndex]));

With s16tableIndex + 1 we are trying an out-of-bounds access to the array.

The log_table array provides log2 values in q.15 format and the above
statement tries an error approximation with the next value. To fix this
issue add the next value to the array and update the comment accordingly.

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-25 11:56:34 +02:00
Wright Feng
f25ba69c63 brcmfmac: update beacon IE after bss up and clear when AP stopped
Firmware doesn't update beacon/Probe Response vendor IEs correctly when
bss is down, so we move brcmf_config_ap_mgmt_ie after BSS up. And host
driver should clear IEs when AP stopped so that the IEs in host side will
be synced with in firmware side.

Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-23 17:34:38 +02:00
Rafał Miłecki
e1c122d55f brcmfmac: print name of connect status event
This simplifies debugging. Format %s (%u) comes from similar debugging
message in brcmf_fweh_event_worker.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-17 08:44:35 +02:00
David S. Miller
bb598c1b8c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of bug fixes in 'net' overlapping other changes in
'net-next-.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 10:54:36 -05:00
Rafał Miłecki
b073ac1fcf brcmfmac: proto: add callback for queuing TX data
So far our core code was calling brcmf_fws_process_skb which wasn't
a proper thing to do. If case of devices using msgbuf protocol fwsignal
shouldn't be used. It was an unnecessary extra layer simply calling
a protocol specifix txdata function.

Please note we already have txdata callback, but it's used for calls
between bcdc and fwsignal so it couldn't be simply used there.

This makes core code more generic (instead of bcdc/fwsignal specific).

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-09 03:30:32 +02:00
Arnd Bergmann
d3532ea6ce brcmfmac: avoid maybe-uninitialized warning in brcmf_cfg80211_start_ap
A bugfix added a sanity check around the assignment and use of the
'is_11d' variable, which looks correct to me, but as the function is
rather complex already, this confuses the compiler to the point where
it can no longer figure out if the variable is always initialized
correctly:

brcm80211/brcmfmac/cfg80211.c: In function ‘brcmf_cfg80211_start_ap’:
brcm80211/brcmfmac/cfg80211.c:4586:10: error: ‘is_11d’ may be used uninitialized in this function [-Werror=maybe-uninitialized]

This adds an initialization for the newly introduced case in which
the variable should not really be used, in order to make the warning
go away.

Fixes: b3589dfe02 ("brcmfmac: ignore 11d configuration errors")
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-10-27 18:04:54 +03:00
Johannes Berg
8f20542386 wireless: deprecate WDS and disable by default
The old WDS 4-addr frame support is very limited, e.g.
 * no encryption is possible on such links
 * it cannot support rate/HT/VHT negotiation
 * management APIs are very restricted

These make the WDS legacy mode useless in practice.

All of these are resolved by the 4-addr AP/client support,
so there's also no reason to improve WDS in the future.

Therefore, add a Kconfig option to disable legacy WDS.
This gives people an "emergency valve" while they migrate
to the better-supported 4-addr AP/client option; we plan
to remove it (and the associated cfg80211/mac80211 code,
which is the ultimate goal) in the future.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27 09:08:43 +02:00
Purushottam Kushwaha
e227300c83 cfg80211: pass struct to interface combination check/iter
Move the growing parameter list to a structure for the interface
combination check and iteration functions in cfg80211 and mac80211
to make the code easier to understand.

Signed-off-by: Purushottam Kushwaha <pkushwah@qti.qualcomm.com>
[edit commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-13 13:39:49 +02:00
Linus Torvalds
687ee0ad4e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) BBR TCP congestion control, from Neal Cardwell, Yuchung Cheng and
    co. at Google. https://lwn.net/Articles/701165/

 2) Do TCP Small Queues for retransmits, from Eric Dumazet.

 3) Support collect_md mode for all IPV4 and IPV6 tunnels, from Alexei
    Starovoitov.

 4) Allow cls_flower to classify packets in ip tunnels, from Amir Vadai.

 5) Support DSA tagging in older mv88e6xxx switches, from Andrew Lunn.

 6) Support GMAC protocol in iwlwifi mwm, from Ayala Beker.

 7) Support ndo_poll_controller in mlx5, from Calvin Owens.

 8) Move VRF processing to an output hook and allow l3mdev to be
    loopback, from David Ahern.

 9) Support SOCK_DESTROY for UDP sockets. Also from David Ahern.

10) Congestion control in RXRPC, from David Howells.

11) Support geneve RX offload in ixgbe, from Emil Tantilov.

12) When hitting pressure for new incoming TCP data SKBs, perform a
    partial rathern than a full purge of the OFO queue (which could be
    huge). From Eric Dumazet.

13) Convert XFRM state and policy lookups to RCU, from Florian Westphal.

14) Support RX network flow classification to igb, from Gangfeng Huang.

15) Hardware offloading of eBPF in nfp driver, from Jakub Kicinski.

16) New skbmod packet action, from Jamal Hadi Salim.

17) Remove some inefficiencies in snmp proc output, from Jia He.

18) Add FIB notifications to properly propagate route changes to
    hardware which is doing forwarding offloading. From Jiri Pirko.

19) New dsa driver for qca8xxx chips, from John Crispin.

20) Implement RFC7559 ipv6 router solicitation backoff, from Maciej
    Żenczykowski.

21) Add L3 mode to ipvlan, from Mahesh Bandewar.

22) Support 802.1ad in mlx4, from Moshe Shemesh.

23) Support hardware LRO in mediatek driver, from Nelson Chang.

24) Add TC offloading to mlx5, from Or Gerlitz.

25) Convert various drivers to ethtool ksettings interfaces, from
    Philippe Reynes.

26) TX max rate limiting for cxgb4, from Rahul Lakkireddy.

27) NAPI support for ath10k, from Rajkumar Manoharan.

28) Support XDP in mlx5, from Rana Shahout and Saeed Mahameed.

29) UDP replicast support in TIPC, from Richard Alpe.

30) Per-queue statistics for qed driver, from Sudarsana Reddy Kalluru.

31) Support BQL in thunderx driver, from Sunil Goutham.

32) TSO support in alx driver, from Tobias Regnery.

33) Add stream parser engine and use it in kcm.

34) Support async DHCP replies in ipconfig module, from Uwe
    Kleine-König.

35) DSA port fast aging for mv88e6xxx driver, from Vivien Didelot.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1715 commits)
  mlxsw: switchx2: Fix misuse of hard_header_len
  mlxsw: spectrum: Fix misuse of hard_header_len
  net/faraday: Stop NCSI device on shutdown
  net/ncsi: Introduce ncsi_stop_dev()
  net/ncsi: Rework the channel monitoring
  net/ncsi: Allow to extend NCSI request properties
  net/ncsi: Rework request index allocation
  net/ncsi: Don't probe on the reserved channel ID (0x1f)
  net/ncsi: Introduce NCSI_RESERVED_CHANNEL
  net/ncsi: Avoid unused-value build warning from ia64-linux-gcc
  net: Add netdev all_adj_list refcnt propagation to fix panic
  net: phy: Add Edge-rate driver for Microsemi PHYs.
  vmxnet3: Wake queue from reset work
  i40e: avoid NULL pointer dereference and recursive errors on early PCI error
  qed: Add RoCE ll2 & GSI support
  qed: Add support for memory registeration verbs
  qed: Add support for QP verbs
  qed: PD,PKEY and CQ verb support
  qed: Add support for RoCE hw init
  qede: Add qedr framework
  ...
2016-10-05 10:11:24 -07:00
Linus Torvalds
9929780e86 Driver core patches for 4.9-rc1
Here are the "big" driver core patches for 4.9-rc1.  Also in here are a
 number of debugfs fixes that cropped up due to the changes that happened
 in 4.8 for that filesystem.  Overall, nothing major, just a few fixes
 and cleanups.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iFYEABECABYFAlfyNw4PHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfspLVYAoNXr
 FXBHGb2tNT/1PLfvUCwd5PqWAJ9Khb5WAHtvjTmEN1zabz45aSbcrA==
 =Uz6V
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here are the "big" driver core patches for 4.9-rc1. Also in here are a
  number of debugfs fixes that cropped up due to the changes that
  happened in 4.8 for that filesystem. Overall, nothing major, just a
  few fixes and cleanups.

  All of these have been in linux-next with no reported issues"

* tag 'driver-core-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (23 commits)
  drivers: dma-coherent: Move spinlock in dma_alloc_from_coherent()
  drivers: dma-coherent: Fix DMA coherent size for less than page
  MAINTAINERS: extend firmware_class maintainer list
  debugfs: propagate release() call result
  driver-core: platform: Catch errors from calls to irq_get_irq_data
  sysfs print name of undiscoverable attribute group
  carl9170: fix debugfs crashes
  b43legacy: fix debugfs crash
  b43: fix debugfs crash
  debugfs: introduce a public file_operations accessor
  device core: Remove deprecated create_singlethread_workqueue
  drivers/base dmam_declare_coherent_memory leaks
  platform: don't return 0 from platform_get_irq[_byname]() on error
  cpu: clean up register_cpu func
  dma-mapping: use vma_pages().
  drivers: dma-coherent: use vma_pages().
  attribute_container: Fix typo
  base: soc: make it explicitly non-modular
  drivers: base: dma-mapping: page align the size when unmap_kernel_range
  platform driver: fix use-after-free in platform_device_del()
  ...
2016-10-03 20:03:24 -07:00
Rafał Miłecki
7f00ee2bbc brcmfmac: use correct skb freeing helper when deleting flowring
Flowrings contain skbs waiting for transmission that were passed to us
by netif. It means we checked every one of them looking for 802.1x
Ethernet type. When deleting flowring we have to use freeing function
that will check for 802.1x type as well.

Freeing skbs without a proper check was leading to counter not being
properly decreased. This was triggering a WARNING every time
brcmf_netdev_wait_pend8021x was called.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend@broadcom.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-27 18:47:55 +03:00
Rafał Miłecki
2f0e56fa37 brcmfmac: replace WARNING on timeout with a simple error message
Even with timeout increased to 950 ms we get WARNINGs from time to time.
It mostly happens on A-MPDU stalls (e.g. when station goes out of
range). It may take up to 5-10 secods for the firmware to recover and
for that time it doesn't process packets.

It's still useful to have a message on time out as it may indicate some
firmware problem and incorrect key update. Raising a WARNING however
wasn't really that necessary, it doesn't point to any driver bug anymore
and backtrace wasn't much useful.

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>
2016-09-27 18:47:08 +03:00
Rafał Miłecki
2df86ad959 brcmfmac: drop unused fields from struct brcmf_pub
They seem to be there from the first day. We calculate these values but
never use them.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:51:02 +03:00
Rafał Miłecki
23e9c128ad brcmfmac: fix memory leak in brcmf_fill_bss_param
This function is called from get_station callback which means that every
time user space was getting/dumping station(s) we were leaking 2 KiB.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Fixes: 1f0dc59a6d ("brcmfmac: rework .get_station() callback")
Cc: stable@vger.kernel.org # 4.2+
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:49:10 +03:00
Hante Meuleman
92c3136047 brcmfmac: simplify mapping of auth type
The 802.11 standard only has four valid auth type configurations of which
our firmware only supports two, ie. Open System and Shared Key. Simplify
the mapping falling back to automatic for other types specified by
user-space.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:56 +03:00
Hante Meuleman
a7ed7828ec brcmfmac: fix out of bound access on clearing wowl wake indicator
Clearing the wowl wakeindicator happens with a rather odd
construction where the string "clear" is used to set the iovar
wowl_wakeind. This was implemented incorrectly as it caused an
out of bound access. Use an intermediate variable of correct
length and copy string in that. Problem was found using coverity.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:55 +03:00
Hante Meuleman
2b7425f362 brcmfmac: fix clearing entry IPv6 address
When IPv6 address is to be cleared there is a possible out of
bound access. But also the clearing of the last entry and the
adjustment of total number of stored IPv6 addresses is not
updated. This patch fixes that bug. Bug was found using coverity.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:55 +03:00
Hante Meuleman
835680b82f brcmfmac: remove unnecessary null pointer check
in the function brcmf_bus_start() in the exception handling a
check is made to dermine whether ifp is null, though this is not
possible. Removing the unnessary check.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:54 +03:00
Arend Van Spriel
8fa5fdec09 brcmfmac: remove worker from .ndo_set_mac_address() callback
As it turns out there is no need to use a worker for the callback
because it is not called from atomic context.

Reported-by: Dan Williams <dcbw@redhat.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:54 +03:00
Arend Van Spriel
26305d3d72 brcmfmac: initialize variable in brcmf_sdiod_regrl()
In case of an error the variable returned is uninitialized. The caller
will probably check the error code before using it, but better assure
it is set to zero.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:53 +03:00
Arend Van Spriel
bc98164136 brcmfmac: fix memory leak in brcmf_flowring_add_tdls_peer()
In the error paths in brcmf_flowring_add_tdls_peer() the allocated
resource should be freed.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:53 +03:00
Arend Van Spriel
704d1c6b56 brcmfmac: rework pointer trickery in brcmf_proto_bcdc_query_dcmd()
The variable info is assigned to point to bcdc->msg[1], which is the
same as pointing to bcdc->buf. As that is what we want to access
make it clear by fixing the assignment. This also avoid out-of-bounds
errors from static analyzers are bcdc->msg[1] is not in the structure
definition.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:52 +03:00
Hante Meuleman
b3589dfe02 brcmfmac: ignore 11d configuration errors
802.11d is not always supported by firmware anymore. Currently the
AP configuration of 11d will cause an abort if the ioctl set is
failing. This behavior is not correct and the error should be
ignored.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:51 +03:00
Christian Lamparter
9c4a45b17e b43legacy: fix debugfs crash
This patch fixes a crash that happens because b43legacy's
debugfs code expects file->f_op to be a pointer to its own
b43legacy_debugfs_fops struct. This is no longer the case
since commit 9fd4dcece4
("debugfs: prevent access to possibly dead file_operations at file open")

Reviewed-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Cc: stable <stable@vger.kernel.org> # 4.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-21 12:13:34 +02:00
Christian Lamparter
51b275a6fe b43: fix debugfs crash
This patch fixes a crash that happens because b43's
debugfs code expects file->f_op to be a pointer to
its own b43_debugfs_fops struct. This is no longer
the case since commit 9fd4dcece4
("debugfs: prevent access to possibly dead file_operations at file open")

Reviewed-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Cc: stable <stable@vger.kernel.org> # 4.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-21 12:13:34 +02:00
David S. Miller
e812bd905a wireless-drivers-next patches for 4.9
Major changes:
 
 iwlwifi
 
 * preparation for new a000 HW continues
 * some DQA improvements
 * add support for GMAC
 * add support for 9460, 9270 and 9170 series
 
 mwifiex
 
 * support random MAC address for scanning
 * add HT aggregation support for adhoc mode
 * add custom regulatory domain support
 * add manufacturing mode support via nl80211 testmode interface
 
 bcma
 
 * support BCM53573 series of wireless SoCs
 
 bitfield.h
 
 * add FIELD_PREP() and FIELD_GET() macros
 
 mt7601u
 
 * convert to use the new bitfield.h macros
 
 brcmfmac
 
 * add support for bcm4339 chip with modalias sdio:c00v02D0d4339
 
 ath10k
 
 * add nl80211 testmode support for 10.4 firmware
 * hide kernel addresses from logs using %pK format specifier
 * implement NAPI support
 * enable peer stats by default
 
 ath9k
 
 * use ieee80211_tx_status_noskb where possible
 
 wil6210
 
 * extract firmware capabilities from the firmware file
 
 ath6kl
 
 * enable firmware crash dumps on the AR6004
 
 ath-current is also merged to fix a conflict in ath10k.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJX2rF7AAoJEG4XJFUm622bD3EH/icZDT7vVxnb0VPP8jAScA4h
 bMNrI3iFxnPohO8Rzp+edWSdxEZoxwrBVk/6BHXO9PHHZwPX7/b8/OOXmLWB2X1c
 ffj1jt83RENcsZFvd5OJfDYxIq89uOkWybdD6nIUd3umKC9KeFOI5nCju31fEZrQ
 ZptqvKGIV36bbx07K8Y/PQRL2SA6T+09WqvuljLHZD5hfPGZ+GWXV2p+HAm3Moos
 iy6HUx5+pYfC+zlcmvJvL47Wxj+HppS/48ujyQ68DD2UkjOtF620YJjVy3o+njip
 GNJtCgWFDp2ar3uvRP2BfBd9FtseDTKsKusxJQvNGoSR0ON+uGIzURCznQ+2PCM=
 =FyXw
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2016-09-15' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.9

Major changes:

iwlwifi

* preparation for new a000 HW continues
* some DQA improvements
* add support for GMAC
* add support for 9460, 9270 and 9170 series

mwifiex

* support random MAC address for scanning
* add HT aggregation support for adhoc mode
* add custom regulatory domain support
* add manufacturing mode support via nl80211 testmode interface

bcma

* support BCM53573 series of wireless SoCs

bitfield.h

* add FIELD_PREP() and FIELD_GET() macros

mt7601u

* convert to use the new bitfield.h macros

brcmfmac

* add support for bcm4339 chip with modalias sdio:c00v02D0d4339

ath10k

* add nl80211 testmode support for 10.4 firmware
* hide kernel addresses from logs using %pK format specifier
* implement NAPI support
* enable peer stats by default

ath9k

* use ieee80211_tx_status_noskb where possible

wil6210

* extract firmware capabilities from the firmware file

ath6kl

* enable firmware crash dumps on the AR6004

ath-current is also merged to fix a conflict in ath10k.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-17 09:53:29 -04:00
David S. Miller
b20b378d49 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mediatek/mtk_eth_soc.c
	drivers/net/ethernet/qlogic/qed/qed_dcbx.c
	drivers/net/phy/Kconfig

All conflicts were cases of overlapping commits.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-12 15:52:44 -07:00
Arend Van Spriel
5251b6be8b brcmfmac: sdio: shorten retry loop in brcmf_sdio_kso_control()
In brcmf_sdio_kso_control() there is a retry loop as hardware may take
time to settle. However, when the call to brcmf_sdiod_regrb() returns
an error it is due to SDIO access failure and it makes no sense to wait
for hardware to settle. This patch aborts the loop after a number of
subsequent access errors.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-09 12:12:15 +03:00
Arend Van Spriel
634faf3686 brcmfmac: add support for bcm4339 chip with modalias sdio:c00v02D0d4339
The driver already supports the bcm4339 chipset but only for the variant
that shares the same modalias as the bcm4335, ie. sdio:c00v02D0d4335.
It turns out that there are also bcm4339 devices out there that have a
more distiguishable modalias sdio:c00v02D0d4339.

Reported-by: Steve deRosier <derosier@gmail.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-09 12:12:14 +03:00
Arend Van Spriel
ded8991215 brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap()
User-space can choose to omit NL80211_ATTR_SSID and only provide raw
IE TLV data. When doing so it can provide SSID IE with length exceeding
the allowed size. The driver further processes this IE copying it
into a local variable without checking the length. Hence stack can be
corrupted and used as exploit.

Cc: stable@vger.kernel.org # v4.7
Reported-by: Daxing Guo <freener.gdx@gmail.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-07 16:43:50 +03:00
Nicolas Iooss
7703773ef1 brcmfmac: fix pmksa->bssid usage
The struct cfg80211_pmksa defines its bssid field as:

    const u8 *bssid;

contrary to struct brcmf_pmksa, which uses:

    u8 bssid[ETH_ALEN];

Therefore in brcmf_cfg80211_del_pmksa(), &pmksa->bssid takes the address
of this field (of type u8**), not the one of its content (which would be
u8*).  Remove the & operator to make brcmf_dbg("%pM") and memcmp()
behave as expected.

This bug have been found using a custom static checker (which checks the
usage of %p... attributes at build time).  It has been introduced in
commit 6c404f34f2 ("brcmfmac: Cleanup pmksa cache handling code"),
which replaced pmksa->bssid by &pmksa->bssid while refactoring the code,
without modifying struct cfg80211_pmksa definition.

Replace &pmk[i].bssid with pmk[i].bssid too to make the code clearer,
this change does not affect the semantic.

Fixes: 6c404f34f2 ("brcmfmac: Cleanup pmksa cache handling code")
Cc: stable@vger.kernel.org
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03 20:02:03 +03:00