We can get the following in the logs every few minutes or so:

wlcore: ERROR exceeded max RX BA sessions

Let's downgrade the message to a debug message as suggested by the TI
support folks at:

https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/p/352435/1244754

"The WL127x firmware supports max of 3 BA sessions. It cannot be increased.
 I think the problem here is the peer trying to initiate a 4th BA session
 (ADDBA request)."
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210101065955.63386-1-tony@atomide.com

Use flexible-array member introduced in C99 instead of zero-length
array. Most of zero-length array was already taken care in previous
patch [1].

[1]. https://patchwork.kernel.org/patch/11394197/Signed-off-by: NTian Tao <tiantao6@hisilicon.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608881703-37060-1-git-send-email-tiantao6@hisilicon.com

This ensure that previous association attempts do not leave stale statuses
on subsequent attempts.

This fixes the WARN_ON(!cr->bss)) from __cfg80211_connect_result() when
connecting to an AP after a previous connection failure (e.g. where EAP fails
due to incorrect psk but association succeeded). In some scenarios, indeed,
brcmf_is_linkup() was reporting a link up event too early due to stale
BRCMF_VIF_STATUS_ASSOC_SUCCESS bit, thus reporting to cfg80211 a connection
result with a zeroed bssid (vif->profile.bssid is still empty), causing the
WARN_ON due to the call to cfg80211_get_bss() with the empty bssid.
Signed-off-by: NLuca Pesce <luca.pesce@vimar.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608807119-21785-1-git-send-email-luca.pesce@vimar.com

A null pointer will be passed to a kfree() call after a kzalloc() call failed.
This code is useless. Thus delete the extra function call.

A goto statement is also no longer needed. Thus adjust an if branch.
Signed-off-by: NZheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201222135113.20680-1-zhengyongjun3@huawei.com

Use module_pci_driver for drivers whose init and exit functions
only register and unregister, respectively.
Signed-off-by: NAmey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201221075735.197255-1-ameynarkhede03@gmail.com

When the usb device being plugged out, before ieee80211 gets to know the
hw being removed, it gets to know that the association status changed,
and thus ask for the device to do the calibration. This causes error as
the hw is absent.

This can be avoid by checking the status of the device before sending
the calibration request to the device.
Signed-off-by: NZhi Han <z.han@gmx.net>
Acked-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201217161657.GB12562@E480

When the usb device being plugged out, before the usb_driver:disconnect
called by e.g workqueue, it is possible that some URBs are still in
processing, and being marked as EPROTO in host controller.

Those URBs should not be scheduled in complete_rx callback function to
get further processing.
Signed-off-by: NZhi Han <z.han@gmx.net>
Acked-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201217161302.GA12562@E480

This adds support for the BCM43666/4 which seems to be using the same
firmware as BCM4366 (4366c0). I found it in the Netgear R8000P router.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Acked-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201214101553.32097-1-zajec5@gmail.com

There is a spelling mistake in the Kconfig help text. Fix it.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201216115808.12987-1-colin.king@canonical.com

As the Marvell PCIE WiFi-Ex driver does not have any code or data
located in initmem, there is no need to annotate the mwifiex_pcie
structure with __refdata.  Drop the annotation, to avoid suppressing
future section warnings.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201211133835.2970384-1-geert+renesas@glider.be

Fix the following coccicheck warning:
 ./drivers/net/wireless/realtek/rtw88/debug.c:800:17-23: WARNING:
Comparison of 0/1 to bool variable
Reported-by: NAbaci Robot <abaci@linux.alibaba.com>
Signed-off-by: NYANG LI <abaci-bugfix@linux.alibaba.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1610445040-23599-1-git-send-email-abaci-bugfix@linux.alibaba.com

To protect both of WL/BT performance while BT is under re-link state.
4-slot mode TDMA can make the re-link more sensitive and mitigate the WL
throughput drop.
Signed-off-by: NChing-Te Ku <ku920601@realtek.com>
Signed-off-by: NPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210112021135.3823-1-pkshih@realtek.com

Hal function must follow the value that calculates from dynamic mechanism.
Force to set new_lvl to 4 damages receiving ability. System will not able
to reconnect to the AP if wifi unexpected disconnecting at this moment.
Signed-off-by: NVincent Fann <vincent_fann@realtek.com>
Signed-off-by: NPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201228082516.16488-1-pkshih@realtek.com

Sometimes driver does not get tx report from firmware because wifi
environment is too noisy to get ack from AP about a TX frame,
or firmware is too busy to report driver in a estimated time.
But the condition will not affect wifi function or throughput.
So we reduce the log level to rtw_debug instead of scary backtrace.
Signed-off-by: NChin-Yen Lee <timlee@realtek.com>
Signed-off-by: NPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201228082433.16431-1-pkshih@realtek.com

The parameter of kfree function is NULL, so kfree code is useless, delete it.
Signed-off-by: NZheng Yongjun <zhengyongjun3@huawei.com>
Acked-by: NPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201216130442.13869-1-zhengyongjun3@huawei.com

ath.git patches for v5.12. Major changes:

ath9k

* more robust encryption key cache management

BCM4908 family SoCs come with integrated Starfighter 2 switch. Its
registers layout it a mix of BCM7278 and BCM7445. It has 5 integrated
PHYs and 8 ports. It also supports RGMII and SerDes.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210106213202.17459-3-zajec5@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

BCM4908 family SoCs have integrated Starfighter 2 switch.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210106213202.17459-2-zajec5@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

This helps validating DTS files. Only the current (not deprecated one)
binding was converted.

Minor changes:
1. Dropped dsa/dsa.txt references
2. Updated node name to match dsa.yaml requirement
3. Fixed 2 typos in examples

The new binding was validated using the dt_binding_check.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20210106213202.17459-1-zajec5@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Mat Martineau says:

====================
MPTCP: Add MP_PRIO support and rework local address IDs

Patches 1 and 2 rework the assignment of local address IDs to allow them
to be assigned by a userspace path manager, and add corresponding self
tests.

Patches 2-8 add the ability to change subflow priority after a subflow
has been established. Each subflow in a MPTCP connection has a priority
level: "regular" or "backup". Data should only be sent on backup
subflows if no regular subflows are available. The priority level can be
set when the subflow connection is established (as was already
implemented), or during the life of the connection by sending MP_PRIO in
the TCP options (as added here). Self tests are included.
====================

Link: https://lore.kernel.org/r/20210109004802.341602-1-mathew.j.martineau@linux.intel.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

This patch added the MP_PRIO testcases:

Add a new argument bkup for run_tests and do_transfer, it can be set as
"backup" or "nobackup", the default value is "".

Add a new function chk_prio_nr to check the MP_PRIO related MIB counters.

The output looks like this:

29 single subflow, backup      syn[ ok ] - synack[ ok ] - ack[ ok ]
                               ptx[ ok ] - prx   [ ok ]
30 single address, backup      syn[ ok ] - synack[ ok ] - ack[ ok ]
                               add[ ok ] - echo  [ ok ]
                               ptx[ ok ] - prx   [ ok ]
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch added the mibs for MP_PRIO, MPTCP_MIB_MPPRIOTX for transmitting
of the MP_PRIO suboption, and MPTCP_MIB_MPPRIORX for receiving of it.
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch added the set_flags command in pm_nl_ctl, currently we can only
set two flags: backup and nobackup. The set_flags command can be used like
this:

 # pm_nl_ctl set 10.0.0.1 flags backup
 # pm_nl_ctl set 10.0.0.1 flags nobackup
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch added a new command MPTCP_PM_CMD_SET_FLAGS in PM netlink:

In mptcp_nl_cmd_set_flags, parse the input address, get the backup value
according to whether the address's FLAG_BACKUP flag is set from the
user-space. Then check whether this address had been added in the local
address list. If it had been, then call mptcp_nl_addr_backup to deal with
this address.

In mptcp_nl_addr_backup, traverse all the existing msk sockets to find
the relevant sockets, and call mptcp_pm_nl_mp_prio_send_ack to send out
a MP_PRIO ACK packet.

Finally in mptcp_nl_cmd_set_flags, set or clear the address's FLAG_BACKUP
flag.
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch added the incoming MP_PRIO logic:

Added a flag named mp_prio in struct mptcp_options_received, to mark the
MP_PRIO is received, and save the priority value to struct
mptcp_options_received's backup member. Then invoke
mptcp_pm_mp_prio_received with the receiving subsocket and the backup
value.

In mptcp_pm_mp_prio_received, get the subflow context according the input
subsocket, and change the subflow's backup as the incoming priority value.
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch added the outgoing MP_PRIO logic:

In mptcp_pm_nl_mp_prio_send_ack, find the related subflow and subsocket
according to the input parameter addr. Save the input priority value to
suflow's backup, then set subflow's send_mp_prio flag to true, and save
the input priority value to suflow's request_bkup. Finally, send out a
pure ACK on the related subsocket.

In mptcp_established_options_mp_prio, check whether the subflow's
send_mp_prio is set. If it is, this is the packet for sending MP_PRIO.
So save subflow->request_bkup value to mptcp_out_options's backup, and
change the option type to OPTION_MPTCP_PRIO.

In mptcp_write_options, clear the send_mp_prio flag and send out the
MP_PRIO suboption with mptcp_out_options's backup value.
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Since the address ID can be set from user-space, some of the tests in
pm_netlink.sh will fail. This patch fixed the failures, and add the
testcases for setting the address ID.
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Currently the address ID set by the netlink PM from user-space is
overridden by the kernel. This patch added the address ID assignment
bitmap to allow user-space to set the address ID.

Use a per netns bitmask id_bitmap (256 bits) to keep track of in-use IDs.
And use next_id to keep track of the highest ID currently in use. If the
user-space provides an ID at endpoint creation time, try to use it. If
already in use, endpoint creation fails. Otherwise pick the first ID
available after the highest currently in use, with wrap-around.
Signed-off-by: NGeliang Tang <geliangtang@gmail.com>
Signed-off-by: NMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Heiner Kallweit says:

====================
r8169: small improvements

This series includes a number of smaller improvements.

v2:
- return on WARN in patch 1
====================

Link: https://lore.kernel.org/r/938caef4-8a0b-bbbd-66aa-76f758ff877a@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

If WOL isn't enabled, then there's no need to enable wakeup from D3
on system shutdown.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Use WARN_ONCE here to get a call trace in case of a problem.
This facilitates finding the offending code part.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Use WARN here to avoid stopping the system. In addition print the addr
and mask values that triggered the warning.

v2:
- return on WARN to avoid an invalid register write
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Introduced in commit 37b8da1a ("net: dsa: Move FDB add/del
implementation inside DSA") in net/dsa/legacy.c, these functions were
moved again to slave.c as part of commit 2a93c1a3 ("net: dsa: Allow
compiling out legacy support"), before actually deleting net/dsa/slave.c
in 93e86b3b ("net: dsa: Remove legacy probing support"). Along with
that movement there should have been a deletion of the prototypes from
dsa_priv.h, they are not useful.
Signed-off-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210108233054.1222278-1-olteanv@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

Ioana Ciornei says:

====================
dpaa2-mac: various updates

The first two patches of this series extends the MAC statistics support
to also work for network interfaces which have their link status handled
by firmware (TYPE_FIXED).

The next two patches are fixing a sporadic problem which happens when
the connected DPMAC object is not yet discovered by the fsl-mc bus, thus
the dpaa2-eth is not able to get a reference to it. A referred probe
will be requested in this case.

Finally, the last two patches make some cosmetic changes, mostly
removing comments and unnecessary checks.

Changes in v2:
 - replaced IS_ERR_OR_NULL() by IS_ERR() in patch 4/6
 - reworded the commit message of patch 6/6
====================

Link: https://lore.kernel.org/r/20210108090727.866283-1-ciorneiioana@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

The MC firmware takes these PAUSE/ASYM_PAUSE flags provided by the
driver, transforms them back into rx/tx pause enablement status and
applies them to hardware. We are not losing information by this
transformation, thus remove the comment.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

The dpaa2-eth driver has phylink integration only if the connected dpmac
object is in TYPE_PHY (aka the PCS/PHY etc link status is managed by
Linux instead of the firmware). The check is thus unnecessary because
the code path that reaches the .mac_link_up() callback is only with
TYPE_PHY dpmac objects.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

The fsl_mc_get_endpoint() function now returns -EPROBE_DEFER when the
dpmac device was not yet discovered by the fsl-mc bus. When this
happens, pass the error code up so that we can retry the probe at a
later time.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

The fsl_mc_get_endpoint() should return a pointer to the connected
fsl_mc device, if there is one. By interrogating the MC firmware, we
know if there is an endpoint or not so when the endpoint device is
actually searched on the fsl-mc bus and not found we are hitting the
case in which the device has not been yet discovered by the bus.

Return -EPROBE_DEFER so that callers can differentiate this case.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Acked-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

If the network interface object is connected to a MAC of TYPE_FIXED, the
link status management is handled exclusively by the firmware. This does
not mean that the driver cannot access the MAC counters and export them
in ethtool.

For this to happen, we open the attached dpmac device and keep a pointer
to it in priv->mac. Because of this, all the checks in the driver of the
following form 'if (priv->mac)' have to be updated to actually check
the dpmac attribute and not rely on the presence of a non-NULL value.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Split up the initialization phase of the dpmac object from actually
configuring the phylink instance, connecting to it and configuring the
MAC. This is done so that even though the dpni object is connected to a
dpmac which has link management handled by the firmware we are still
able to export the MAC counters.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>