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>
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>
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>
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>
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>
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>
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>
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>
It's important to inform user so he knows things went wrong. He may also
want to get memory dump for further debugging purposes.
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>
This method may be unsupported (see: USB bus) or may just fail (see:
SDIO bus).
While at it rework logic in brcmf_sdio_bus_get_memdump function to avoid
too many conditional code nesting levels.
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>
Add support for the .update_connect_params() callback for roaming
or subsequent (re)association.
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>
The wowlan support is (partially) determined dynamic by checking the
device/firmware capabilities. So they can differ per device. So it
is not possible to use a static global. Instead use the global as a
template and use kmemdup(). When kmemdup() fails the template is used
unmodified.
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>
For wowl netdetect the event data changed for newer chips. This
was recently fixed for scheduled scan, but same change is needed
for wowl netdetect. Removing now pointles += operation from both
result handlers.
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>
The driver advertises support for WOWLAN_NETDETECT but did not specify
maximum amount of netdetect match sets. This was no issue due to a bug
in nl80211. As that has been fixed, brcmfmac also needs fixing.
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>
It was left after reworking PCIe reset in commit 07fe2e38c7
("brcmfmac: Reset PCIE devices after recognition.").
Cc: Hante Meuleman <meuleman@broadcom.com>
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>
This intends to make init/attach process slightly easier to follow.
What driver was doing in brcmf_bus_start wasn't bus specific at all and
function brcmf_bus_stop wasn't undoing things done there. This function
is supposed to be called by bus specific code when the bus is ready.
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>
Driver used to call brcmf_bus_detach only from one place and it already
contained a check for drvr not being NULL. We can get rid of this extra
function, call brcmf_bus_stop directly and simplify the code.
There also isn't brcmf_bus_attach function which one could expect so it
looks more consistent this way.
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>
Function brcmf_c_set_joinpref_default is in common.c, so move it to the
related header.
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>
Functions brcmf_c_prec_enq and brcmf_sdio_init don't exist so we
really don't need their declarations. Function brcmf_parse_tlvs is used
in cfg80211.c only so make it static and drop from header as well.
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>
brcmf_sdio_fromevntchan() was being called on the the data frame
rather than the software header, causing some frames to be
mischaracterized as on the event channel rather than the data channel.
This fixes a major performance regression (due to dropped packets). With
this patch the download speed jumped from 1Mbit/s back up to 40MBit/s due
to the sheer amount of packets being incorrectly processed.
Fixes: c56caa9db8 ("brcmfmac: screening firmware event packet")
Signed-off-by: Gavin Li <git@thegavinli.com>
Cc: <stable@vger.kernel.org> # 4.7+
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
[kvalo@codeaurora.org: improve commit logs based on email discussion]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
BCM43455 is a more recent revision of the BCM4345. Some of the BCM43455
got a dedicated SDIO device ID which is currently not supported by
brcmfmac.
Adding the new sdio_device_id to brcmfmac is enough to get the BCM43455
supported because the chip itself is already supported (due to BCM4345
support in the driver).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We may want to use Open Firmware for other devices than just SDIO ones.
In future we may want to support more Broadcom properties so there is
really no reason for such limitation.
Call brcmf_of_probe for all kind of devices & move extra conditions to
the body of that funcion.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
During bands setup we disable all channels that firmware doesn't support
in the current regulatory setup. If we do this before wiphy_register
it will result in copying set flags (including IEEE80211_CHAN_DISABLED)
to the orig_flags which is supposed to be persistent. We don't want this
as regulatory change may result in enabling some channels. We shouldn't
mess with orig_flags then (by changing them or ignoring them) so it's
better to just take care of their proper values.
This patch cleanups code a bit (by taking orig_flags more seriously) and
allows further improvements like disabling really unavailable channels.
We will need that e.g. if some frequencies should be disabled for good
due to hardware setup (design).
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>
During init we take care of regulatory stuff by disabling all
unavailable channels (see brcmf_construct_chaninfo) so this predisabling
them is not really required (and this patch won't change any behavior).
It will on the other hand allow more detailed runtime control over
channels which is the main reason for this change.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Our code was assigning number of channels to the index variable by
default. If firmware reported channel we didn't predict this would
result in using that initial index value and writing out of array. This
never happened so far (we got a complete list of supported channels) but
it means possible memory corruption so we should handle it anyway.
This patch simply detects unexpected channel and ignores it.
As we don't try to create new entry now, it's also safe to drop hw_value
and center_freq assignment. For known channels we have these set anyway.
I decided to fix this issue by assigning NULL or a target channel to the
channel variable. This was one of possible ways, I prefefred this one as
it also avoids using channel[index] over and over.
Fixes: 58de92d2f9 ("brcmfmac: use static superset of channels for wiphy bands")
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>
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
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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>
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>
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>
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>
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>
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
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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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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
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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>
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>
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>
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>
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>
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>
