Most users of IS_ERR_VALUE() in the kernel are wrong, as they
pass an 'int' into a function that takes an 'unsigned long'
argument. This happens to work because the type is sign-extended
on 64-bit architectures before it gets converted into an
unsigned type.

However, anything that passes an 'unsigned short' or 'unsigned int'
argument into IS_ERR_VALUE() is guaranteed to be broken, as are
8-bit integers and types that are wider than 'unsigned long'.

Andrzej Hajda has already fixed a lot of the worst abusers that
were causing actual bugs, but it would be nice to prevent any
users that are not passing 'unsigned long' arguments.

This patch changes all users of IS_ERR_VALUE() that I could find
on 32-bit ARM randconfig builds and x86 allmodconfig. For the
moment, this doesn't change the definition of IS_ERR_VALUE()
because there are probably still architecture specific users
elsewhere.

Almost all the warnings I got are for files that are better off
using 'if (err)' or 'if (err < 0)'.
The only legitimate user I could find that we get a warning for
is the (32-bit only) freescale fman driver, so I did not remove
the IS_ERR_VALUE() there but changed the type to 'unsigned long'.
For 9pfs, I just worked around one user whose calling conventions
are so obscure that I did not dare change the behavior.

I was using this definition for testing:

 #define IS_ERR_VALUE(x) ((unsigned long*)NULL == (typeof (x)*)NULL && \
       unlikely((unsigned long long)(x) >= (unsigned long long)(typeof(x))-MAX_ERRNO))

which ends up making all 16-bit or wider types work correctly with
the most plausible interpretation of what IS_ERR_VALUE() was supposed
to return according to its users, but also causes a compile-time
warning for any users that do not pass an 'unsigned long' argument.

I suggested this approach earlier this year, but back then we ended
up deciding to just fix the users that are obviously broken. After
the initial warning that caused me to get involved in the discussion
(fs/gfs2/dir.c) showed up again in the mainline kernel, Linus
asked me to send the whole thing again.

[ Updated the 9p parts as per Al Viro  - Linus ]
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.org/lkml/2016/1/7/363
Link: https://lkml.org/lkml/2016/5/27/486
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # For nvmem part
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The commit fb724ed5 ("wlcore: Fix regression in
wlcore_set_partition()") fixed wl12xx functionality.
However, it reverted the support in fw logger
over sdio in wl18xx.

This patch reverts the changes made and also fixes
the original functionality issue introduced in wl12xx.

Fixes: fb724ed5 ("wlcore: Fix regression in wlcore_set_partition()")
Signed-off-by: NGuy Mishol <guym@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Use to_delayed_work() instead of open-coding it.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
[Update commit message]
Signed-off-by: NJulian Calaby <julian.calaby@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Use to_delayed_work() instead of open-coding it.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
[Update commit message]
Signed-off-by: NJulian Calaby <julian.calaby@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

ssid is an array of u8, so it can never be null, so the null check on
wl->scan.ssid is redundant and can be removed.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add debugfs key (under CFG80211_CERTIFICATION_ONUS
configuration) to set/clear radar_debug_mode.
In this mode, the driver simply ignores radar
events (but prints them).

The fw is notified about this mode through
a special generic_cfg_feature command.

This mode is relevant only for ap mode. look for
it when initializing ap vif.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When working with AP + P2P, it's possible to get into
a state when the AP is in ROC (due to assiciating station)
while trying to ROC on the P2P interface.

Replace the WARN_ON with wl1271_error to avoid warnings
in this case.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The commit 3719c17e ("wlcore/wl18xx: fw logger over sdio") introduced a
regression causing the wlcore to time out and go into recovery. Reverting the
changes regarding write of the last partition size brings the module back to
it's functional state.

Fixes: 3719c17e ("wlcore/wl18xx: fw logger over sdio")
Reported-by: NRoss Green <rgkernel@gmail.com>
Signed-off-by: NEmil Goode <emil.fsw@goode.io>
[kvalo@codeaurora.org: improved commit log]
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

wlcore_read/wlcore_write can return negative values so it should
be assigned to signed variable.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2120705

Fixes: 3719c17e ("wlcore/wl18xx: fw logger over sdio")
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add DT support for the wl1271 SPI WiFi.

Add documentation file for the wl1271 SPI WiFi.
Signed-off-by: NUri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: NRob Herring <robh@kernel.org>
Tested-By: NSebastian Reichel <sre@kernel.org>
Reviewed-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The power function uses a consumer regulator access to update the WiFi
enable GPIO value.
Signed-off-by: NUri Mashiach <uri.mashiach@compulab.co.il>
Tested-By: NSebastian Reichel <sre@kernel.org>
Reviewed-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently mac80211 does not inform the driver of the session
block ack timeout when starting a rx aggregation session.
Drivers that manage the reorder buffer need to know this
parameter.
Seeing that there are now too many arguments for the
drv_ampdu_action() function, wrap them inside a structure.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Fix the below Oops when trying to modprobe wlcore_spi.
The oops occurs because the wl1271_power_{off,on}()
function doesn't check the power() function pointer.

[   23.401447] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
[   23.409954] pgd = c0004000
[   23.412922] [00000000] *pgd=00000000
[   23.416693] Internal error: Oops: 80000007 [#1] SMP ARM
[   23.422168] Modules linked in: wl12xx wlcore mac80211 cfg80211
musb_dsps musb_hdrc usbcore usb_common snd_soc_simple_card evdev joydev
omap_rng wlcore_spi snd_soc_tlv320aic23_i2c rng_core snd_soc_tlv320aic23
c_can_platform c_can can_dev snd_soc_davinci_mcasp snd_soc_edma
snd_soc_omap omap_wdt musb_am335x cpufreq_dt thermal_sys hwmon
[   23.453253] CPU: 0 PID: 36 Comm: kworker/0:2 Not tainted
4.2.0-00002-g951efee-dirty #233
[   23.461720] Hardware name: Generic AM33XX (Flattened Device Tree)
[   23.468123] Workqueue: events request_firmware_work_func
[   23.473690] task: de32efc0 ti: de4ee000 task.ti: de4ee000
[   23.479341] PC is at 0x0
[   23.482112] LR is at wl12xx_set_power_on+0x28/0x124 [wlcore]
[   23.488074] pc : [<00000000>]    lr : [<bf2581f0>]    psr: 60000013
[   23.488074] sp : de4efe50  ip : 00000002  fp : 00000000
[   23.500162] r10: de7cdd00  r9 : dc848800  r8 : bf27af00
[   23.505663] r7 : bf27a1a8  r6 : dcbd8a80  r5 : dce0e2e0  r4 :
dce0d2e0
[   23.512536] r3 : 00000000  r2 : 00000000  r1 : 00000001  r0 :
dc848810
[   23.519412] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM
Segment kernel
[   23.527109] Control: 10c5387d  Table: 9cb78019  DAC: 00000015
[   23.533160] Process kworker/0:2 (pid: 36, stack limit = 0xde4ee218)
[   23.539760] Stack: (0xde4efe50 to 0xde4f0000)

[...]

[   23.665030] [<bf2581f0>] (wl12xx_set_power_on [wlcore]) from
[<bf25f7ac>] (wlcore_nvs_cb+0x118/0xa4c [wlcore])
[   23.675604] [<bf25f7ac>] (wlcore_nvs_cb [wlcore]) from [<c04387ec>]
(request_firmware_work_func+0x30/0x58)
[   23.685784] [<c04387ec>] (request_firmware_work_func) from
[<c0058e2c>] (process_one_work+0x1b4/0x4b4)
[   23.695591] [<c0058e2c>] (process_one_work) from [<c0059168>]
(worker_thread+0x3c/0x4a4)
[   23.704124] [<c0059168>] (worker_thread) from [<c005ee68>]
(kthread+0xd4/0xf0)
[   23.711747] [<c005ee68>] (kthread) from [<c000f598>]
(ret_from_fork+0x14/0x3c)
[   23.719357] Code: bad PC value
[   23.722760] ---[ end trace 981be8510db9b3a9 ]---

Prevent oops by validationg power() pointer value before
calling the function.
Signed-off-by: NUri Mashiach <uri.mashiach@compulab.co.il>
Cc: stable@vger.kernel.org
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Enable the FW Logger to work over the SDIO interface in addition to over UART
interface. In the new design we use fw internal memory instead of packet ram
that was used in older (wl12xx) design. This change reduces the impact on TP
and stability.

A new event was added to notify fw logger is ready for reading. Dynamic
configuration to debugfs was added as well.
Signed-off-by: NShahar Patury <shaharp@ti.com>
Signed-off-by: NGuy Mishol <guym@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

The maximum chunks used by the function is
(SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE + 1).
The original commands array had space for
(SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) commands.
When the last chunk is used (len > 4 * WSPI_MAX_CHUNK_SIZE), the last
command is stored outside the bounds of the commands array.

Oops 5 (page fault) is generated during current wl1271 firmware load
attempt:

root@debian-armhf:~# ifconfig wlan0 up
[  294.312399] Unable to handle kernel paging request at virtual address
00203fc4
[  294.320173] pgd = de528000
[  294.323028] [00203fc4] *pgd=00000000
[  294.326916] Internal error: Oops: 5 [#1] SMP ARM
[  294.331789] Modules linked in: bnep rfcomm bluetooth ipv6 arc4 wl12xx
wlcore mac80211 musb_dsps cfg80211 musb_hdrc usbcore usb_common
wlcore_spi omap_rng rng_core musb_am335x omap_wdt cpufreq_dt thermal_sys
hwmon
[  294.351838] CPU: 0 PID: 1827 Comm: ifconfig Not tainted
4.2.0-00002-g3e9ad27-dirty #78
[  294.360154] Hardware name: Generic AM33XX (Flattened Device Tree)
[  294.366557] task: dc9d6d40 ti: de550000 task.ti: de550000
[  294.372236] PC is at __spi_validate+0xa8/0x2ac
[  294.376902] LR is at __spi_sync+0x78/0x210
[  294.381200] pc : [<c049c760>]    lr : [<c049ebe0>]    psr: 60000013
[  294.381200] sp : de551998  ip : de5519d8  fp : 00200000
[  294.393242] r10: de551c8c  r9 : de5519d8  r8 : de3a9000
[  294.398730] r7 : de3a9258  r6 : de3a9400  r5 : de551a48  r4 :
00203fbc
[  294.405577] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 :
de3a9000
[  294.412420] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM
Segment user
[  294.419918] Control: 10c5387d  Table: 9e528019  DAC: 00000015
[  294.425954] Process ifconfig (pid: 1827, stack limit = 0xde550218)
[  294.432437] Stack: (0xde551998 to 0xde552000)

...

[  294.883613] [<c049c760>] (__spi_validate) from [<c049ebe0>]
(__spi_sync+0x78/0x210)
[  294.891670] [<c049ebe0>] (__spi_sync) from [<bf036598>]
(wl12xx_spi_raw_write+0xfc/0x148 [wlcore_spi])
[  294.901661] [<bf036598>] (wl12xx_spi_raw_write [wlcore_spi]) from
[<bf21c694>] (wlcore_boot_upload_firmware+0x1ec/0x458 [wlcore])
[  294.914038] [<bf21c694>] (wlcore_boot_upload_firmware [wlcore]) from
[<bf24532c>] (wl12xx_boot+0xc10/0xfac [wl12xx])
[  294.925161] [<bf24532c>] (wl12xx_boot [wl12xx]) from [<bf20d5cc>]
(wl1271_op_add_interface+0x5b0/0x910 [wlcore])
[  294.936364] [<bf20d5cc>] (wl1271_op_add_interface [wlcore]) from
[<bf15c4ac>] (ieee80211_do_open+0x44c/0xf7c [mac80211])
[  294.947963] [<bf15c4ac>] (ieee80211_do_open [mac80211]) from
[<c0537978>] (__dev_open+0xa8/0x110)
[  294.957307] [<c0537978>] (__dev_open) from [<c0537bf8>]
(__dev_change_flags+0x88/0x148)
[  294.965713] [<c0537bf8>] (__dev_change_flags) from [<c0537cd0>]
(dev_change_flags+0x18/0x48)
[  294.974576] [<c0537cd0>] (dev_change_flags) from [<c05a55a0>]
(devinet_ioctl+0x6b4/0x7d0)
[  294.983191] [<c05a55a0>] (devinet_ioctl) from [<c0517040>]
(sock_ioctl+0x1e4/0x2bc)
[  294.991244] [<c0517040>] (sock_ioctl) from [<c017d378>]
(do_vfs_ioctl+0x420/0x6b0)
[  294.999208] [<c017d378>] (do_vfs_ioctl) from [<c017d674>]
(SyS_ioctl+0x6c/0x7c)
[  295.006880] [<c017d674>] (SyS_ioctl) from [<c000f4c0>]
(ret_fast_syscall+0x0/0x54)
[  295.014835] Code: e1550004 e2444034 0a00007d e5953018 (e5942008)
[  295.021544] ---[ end trace 66ed188198f4e24e ]---
Signed-off-by: NUri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Cc: stable@vger.kernel.org
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Align to new wl18xx sg parameters.
This requires to split both wl12xx/wl18xx enumerators.
Signed-off-by: NGuy Mishol <guym@ti.com>
Acked-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Rename WL_TI to WLAN_VENDOR_TI to match with other vendor configs and make sure
that it's enabled by default in new configs. Convert menuconfigs to regular
configs to unify the wireless drivers menuconfig. Part of reorganising wireless
drivers directory and Kconfig.

Also remove WLCORE dependency to WL_TI. It should not be needed as WLCORE is
already under if  WLAN_VENDOR_TI.
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

An spi_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: NAndrew F. Davis <afd@ti.com>
Acked-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add the option to configure multiple 'scan plans' for scheduled scan.
Each 'scan plan' defines the number of scan cycles and the interval
between scans. The scan plans are executed in the order they were
configured. The last scan plan will always run infinitely and thus
defines only the interval between scans.
The maximum number of scan plans supported by the device and the
maximum number of iterations in a single scan plan are advertised
to userspace so it can configure the scan plans appropriately.

When scheduled scan results are received there is no way to know which
scan plan is being currently executed, so there is no way to know when
the next scan iteration will start. This is not a problem, however.
The scan start timestamp is only used for flushing old scan results,
and there is no difference between flushing all results received until
the end of the previous iteration or the start of the current one,
since no results will be received in between.
Signed-off-by: NAvraham Stern <avraham.stern@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Align fields reg_ch_conf_last and reg_ch_conf_pending of
struct wl1271{} to 64bit.

Without this, on 64bit ARM, wlcore_set_pending_regdomain_ch() fails at
the point it calls set_bit(ch_bit_idx, (long*)wl->reg_ch_conf_pending);
Here is the error message while doing iw wlan0 scan or connect:

[   10.666857] wlcore: IRQ work
[   10.670046] wlcore: intr: 0x40 (fw_rx_counter = 1, drv_rx_counter = 0, tx_results_counter = 0)
[   10.678697] wlcore: WL1271_ACX_INTR_DATA
[   10.682810] Unhandled fault: alignment fault (0x96000021) at 0xffffffc037a817f4
[   10.690139] Internal error: : 96000021 [#1] PREEMPT SMP
[   10.695366] Modules linked in:
[   10.698437] CPU: 3 PID: 894 Comm: irq/60-wl18xx Tainted: G        W       4.2.0-rc6-linaro-hikey #2
[   10.707501] Hardware name: HiKey Development Board (DT)
[   10.712733] task: ffffffc03a9d1680 ti: ffffffc039e18000 task.ti: ffffffc039e18000
[   10.720239] PC is at set_bit+0x14/0x30
[   10.724002] LR is at wlcore_set_pending_regdomain_ch+0x40/0x4c
Signed-off-by: NGuodong Xu <guodong.xu@linaro.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Fixes the output of 'modinfo --field firmware'.
Signed-off-by: NGeoff Levand <geoff@infradead.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Advertise the capability to send A-MSDU within A-MPDU
in the AddBA request sent by mac80211. Let the driver
know about the peer's capabilities.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Add diversity statistics and sync the driver
statistics acx and debugfs representation
with the current fw api.
Signed-off-by: NGuy Mishol <guym@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Sync the driver statistics acx and debugfs representation
with the current fw api.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When starting a p2p mgmt interface, enable its device role. This
allows us to keep the sta role disabled and scan on the dev role.

In general, p2p management interfaces cannot send vif-specific commands
to FW, as the vif role id is invalid. Only off-channel data and scans
happen on this vif, so most ops are not relevant.

If the vif is a p2p mgmt vif, block some mac80211 ops.

Configure rate policies for p2p mgmt interface, as
otherwise p2p packets come out with arbitrary rates.

Since wpa_supplicant currently doesn't support standalone
p2p device mode (without another attached managed interface),
add p2p device to the allowed interface combinations without
decreasing the allowed station count.

Moreover, increase the station count in some cases, as AP
mode usually starts as station interface, and the AP interface
is now different from the p2p management one).
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add definitions and function prototypes for generic_cfg
command.
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add support for long intervals on sched scan.

If configured, the original request interval will
be used num_short_interval times, and then the
long interval will be used.

While on it, fix the scan command field names
to reflect the expected value is in ms (rather
than secs).

These values will be taken from the conf file,
so bump its version accordingly.
Signed-off-by: NEyal Shapira <eyal@wizery.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Added support for a new time sync event
the event data contains the WiLink TSF value.
To trigger the event, a HW modification is required,
so as a supporting firmware binary.
Signed-off-by: NYaniv Machani <yanivma@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

add comments to the antenna diversity reading
Signed-off-by: NGuy Mishol <guym@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

add option to dynamically configure the fw
which debug traces to open
Signed-off-by: NGuy Mishol <guym@ti.com>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

update the rssi reading on rx_status
to read both RSSI level (7 bits) and
antenna diversity (msb)
Signed-off-by: NGuy Mishol <guym@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When wlcore_probe_of failed, return the correct error code instead of ENOMEM
Signed-off-by: NRaphaël Poggi <poggi.raph@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

As we're running out of hardware capability flags pretty quickly,
convert them to use the regular test_bit() style unsigned long
bitmaps.

This introduces a number of helper functions/macros to set and to
test the bits, along with new debugfs code.

The occurrences of an explicit __clear_bit() are intentional, the
drivers were never supposed to change their supported bits on the
fly. We should investigate changing this to be a per-frame flag.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

Delete jump to a label on the next line, when that label is not
used elsewhere.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier l;
@@

-if (...) goto l;
-l:
// </smpl>
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If the wl18xx-conf.bin file is missing or invalid (e.g. due
to recent driver change), fallback to default configuration
instead of failing driver load.
Reported-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

* Interrupt request need to happen when the wilink chip is powered on and
  driving the wlan_irq line. This avoids spurious interrupt issues that
  are a result of different external pulls configuration on different
  platforms
* Allow working with wl18xx level-low and falling edge irqs by configuring
  wl18xx to invert the device interrupt
Signed-off-by: NEyal Reizer <eyalr@ti.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This support is essentially useless as typically networks are encrypted,
frames will be filtered by hardware, and rate scaling will be done with
the intended recipient in mind. For real monitoring of the network, the
monitor mode support should be used instead.

Removing it removes a lot of corner cases.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

The driver can clearly enable fast-xmit since it does rate
control in the device and thus must do duration calculation
there as well.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>