In commit d825db346270e ("b43: shut up clang -Wuninitialized variable
warning"), the message noted that function lpphy_papd_cal() was empty
and had an old TODO regarding its implementation. As the reverse
engineering project that created the LP-PHY version of this driver
has not been active for some time, it is safe to remove this empty
function.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The "rate_index" is only used as an index into the phist_data->rx_rate[]
array in the mwifiex_hist_data_set() function. That array has
MWIFIEX_MAX_AC_RX_RATES (74) elements and it's used to generate some
debugfs information. The "rate_index" variable comes from the network
skb->data[] and it is a u8 so it's in the 0-255 range. We need to cap
it to prevent an array overflow.
Fixes: cbf6e05527 ("mwifiex: add rx histogram statistics support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.
So, replace code of the following form:
sizeof(struct usb_req_write_regs) + count * sizeof(struct reg_data)
with:
struct_size(req, reg_writes, count)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
struct boo entry[];
};
size = sizeof(struct foo) + count * sizeof(struct boo);
instance = kzalloc(size, GFP_KERNEL)
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL)
Notice that, in this case, variable regd_size is not necessary,
hence it is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Below changes are done:
* Device 80MHz clock should be disabled for 9116 in 20MHz band.
* Default edca parameters should be used initially before
connection.
* Default TA aggregation is 3 for 9116.
* Bootup parameters should be loaded first when channel is
changed.
* 4 byte register writes are possible for 9116.
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Device reset register(watchdog timer related) addresses and
values are different for 9116.
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For 9116 device, we have introduced w9116 features frame, which shall be
send when radio capabilities confirm is received.
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Bootup parameters are different for 9116 device. Check added for device
model where-ever bootup parameters are being send.
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Initial frame exchange sequence has been changed for 9116 chip. Getting MAC
address using EEPROM read frame will be once common device configuration is
done and RESET_MAC frame is sending after bootup parameters confirmation is
received, which are different from RS9113 device
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
New firmware files and firmware loading method are added for 9116.
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Till software bootloader ready state, communication with device is common
for 9113 and 9116. Hence moved that part of firmware loading to separate
function rsi_prepare_fw_load(). Also LMAC_VER_OFFSET is different for 9113
and 9116, so renamed existing macro to LMAC_VER_OFFSET_9113
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
9116 device id entry is added in both SDIO and USB interfaces.
New enumberation value taken for the device model. Based on the
device model detected run time, few device specific operations
needs to be performed.
adding rsi_dev_model to get device type in run time, as we can use
same driver for 9113 and 9116 except few firmware load changes.
Signed-off-by: Siva Rebbagondla <siva8118@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Remove not used any longer queue_entry field and flag.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We do not any longer check txstatus timeout from tasklet, so do not need
this optimization.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Sometimes we can get into situation when there are pending statuses,
but we do not get INT_SOURCE_CSR_TX_FIFO_STATUS. Handle this situation
by arming timeout timer and read statuses (it will fix case when
we just do not have irq) and queue work to handle case we missed
statues from hardware FIFO.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Prepare to use rt2800mmio_fetch_txstatus() in concurrent manner and drop
return value since is not longer needed.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Move rt2800usb_txstatus_pending routine to rt2800lib. It will be reused
by rt2800mmio code.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Use new flush_queue() callback for SoC devices, what was already done for
PCIe devices.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Do not disable txstatus interrupt and add quota of processed tx statuses in
one tasklet. Quota is needed to allow to fed device with new frames during
processing of tx statuses.
Patch fixes about 15% performance degradation on some scenarios caused by
0b0d556e0e ("rt2800mmio: use txdone/txstatus routines from lib").
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
kmalloc can fail in rsi_register_rates_channels but memcpy still attempts
to write to channels. The patch replaces these calls with kmemdup and
passes the error upstream.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For unknown reasons printk() on some context can cause CPU hung on
embedded MT7620 AP/router MIPS platforms. What can result on wifi
disconnects.
This patch move queue full messages to debug level what is consistent
with other mac80211 drivers which drop packet silently if tx queue is
full. This make MT7620 OpenWRT routers more stable, what was reported
by various users.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Some USB host devices/drivers on some conditions can always return
EPROTO error on submitted URBs. That can cause infinity loop in the
rt2x00 driver.
Since we can have single EPROTO errors we can not mark as device as
removed to avoid infinity loop. However we can count consecutive
EPROTO errors and mark device as removed if get lot of it.
I choose number 10 as threshold.
Reported-and-tested-by: Randy Oostdyk <linux-kernel@oostdyk.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
As reported by Randy we can overwhelm logs on some USB error conditions.
To avoid that use dev_warn_ratelimited() and dev_err_ratelimitd().
Reported-and-tested-by: Randy Oostdyk <linux-kernel@oostdyk.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In case create_singlethread_workqueue fails, the fix free the
hardware and returns NULL to avoid NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
init_ray_cs does not check value of pcmcia_register_driver,
if it fails, there maybe cause a NULL pointer dereference in
exit_ray_cs.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.
So, replace code of the following form:
sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0])
with:
struct_size(pmkids, bssid_info, num_pmkids)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
* Bump the 20000-series FW API version supported;
* Work on the new debugging infra continues;
* One clean-up to prevent a bogus warning with clang;
* A small cleanup in the PCI ID list;
* Work on new hardware continues;
* RTT confidence indication support for FTM;
* An improvement in HE rate-scaling;
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Merge tag 'iwlwifi-next-for-kalle-2019-04-18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
Third batch of patches intended for v5.2
* Bump the 20000-series FW API version supported;
* Work on the new debugging infra continues;
* One clean-up to prevent a bogus warning with clang;
* A small cleanup in the PCI ID list;
* Work on new hardware continues;
* RTT confidence indication support for FTM;
* An improvement in HE rate-scaling;
In case the the trigger occurrences is zero or force_restart is set, the
driver sets IWL_FWRT_STATUS_DUMPING without actually scheduling trigger
collection. At this point no other dump collection can be performed.
Solve this by setting IWL_FWRT_STATUS_DUMPING bit only when the driver
is surely going to schedule dump collection
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When building with -Wsometimes-uninitialized, Clang warns:
drivers/net/wireless/intel/iwlwifi/mvm/sta.c:2114:12: warning: variable
'queue' is used uninitialized whenever 'if' condition is false
[-Wsometimes-uninitialized]
Clang can't evaluate at this point that WARN(1, ...) always returns true
because __ret_warn_on is defined as !!(condition), which isn't
immediately evaluated as 1. Change this branch to else so that it's
clear to Clang that we intend to bail out here.
Link: https://github.com/ClangBuiltLinux/linux/issues/399
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[added a few more braces]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The range response notification API has changed to add a value that
indicates the confidence of the rtt result.
Support the new API and print the rtt confidence for debug.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Allows to dump periphery memory on ax210 devices.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When building TLC configuration command, consider in case of HE,
if LDPC support is turned on in our capabilities.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add debug prints to the ini flow and rewrite existing prints to provide
more information
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add FW_INFO debug level. This level is enabled if INFO or FW debug
levels are set.
Also, set fw request and callback prints under this debug level.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
IWL_FW_INI_REGION_CSR and IWL_FW_INI_REGION_NOTIFICATION does not have
memory addresses attached to them so the driver should skip them when
parsing the region tlv.
Also, instead of declearing what region types should skip the addition of
the memory addresses, declare what regions have addition of memory
addresses.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
TFD_*_SLOTS and IWL_*_QUEUE_SIZE both define the TX queue
size (number of TFDs).
Get rid of TFD_*_SLOTS and use only IWL_*_QUEUE_SIZE.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
AX210 devices support 256 BA (256 MPDUs in an AMPDU).
The firmware requires that the number of TFDs will be
minimum twice as big as the BA size (2 * 256 = 512).
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
David Bauer says:
====================
net: add reset-controller driven PHY reset
This patchset adds support for a PHY reset driven by a reset-controller.
Currently, only GPIO driven resets are supported by the PHY subsystem.
It also renames the reset-gpio from 'reset' to 'reset_gpio' to
better differentiate between resets wired to a GPIO and resets wired to
a reset-controller driven pin.
Some systems have the PHY reset-line wired to a pin controlled by a
reset-controller (eg. some Atheros AR9132 based boards). In case the
bootloader asserts reset before loading the kernel, we currently do not
have a clean way of deasserting reset to probe the PHY.
v3:
- add missing newline in mdio_bus.c
v2:
- fixed missed rename of "reset" in at803x.c
- move initial reset to mdio_device_reset
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This renames the GPIO reset of mdio devices from 'reset' to
'reset_gpio' to better differentiate between GPIO and
reset-controller driven reset line.
Signed-off-by: David Bauer <mail@david-bauer.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit adds support for PHY reset pins handled by a reset controller.
Signed-off-by: David Bauer <mail@david-bauer.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the documentation for PHY reset lines controlled by a reset controller.
Signed-off-by: David Bauer <mail@david-bauer.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski says:
====================
net: some build fixes and other improvements
A few unrelated improvements here, mostly trying to make random
configs build and W=1 produce a little less warnings under net/
and drivers net/.
First two patches fix set but not used warnings with W=1.
Next patch fixes 64bit division in sch_taprio.c.
Last two patches are getting rid of some (almost) unused asserts
in skbuff.h.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
