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
0b0d556e ("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>

Remove space leftovers.
Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
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>

Syzkaller report this:

kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN PTI
CPU: 0 PID: 4492 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #45
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
RIP: 0010:sysfs_remove_file_ns+0x27/0x70 fs/sysfs/file.c:468
Code: 00 00 00 41 54 55 48 89 fd 53 49 89 d4 48 89 f3 e8 ee 76 9c ff 48 8d 7d 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 2d 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 8b 6d
RSP: 0018:ffff8881e9d9fc00 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff900367e0 RCX: ffffffff81a95952
RDX: 0000000000000006 RSI: ffffc90001405000 RDI: 0000000000000030
RBP: 0000000000000000 R08: fffffbfff1fa22ed R09: fffffbfff1fa22ed
R10: 0000000000000001 R11: fffffbfff1fa22ec R12: 0000000000000000
R13: ffffffffc1abdac0 R14: 1ffff1103d3b3f8b R15: 0000000000000000
FS:  00007fe409dc1700(0000) GS:ffff8881f1200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d721000 CR3: 00000001e98b6005 CR4: 00000000007606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 sysfs_remove_file include/linux/sysfs.h:519 [inline]
 driver_remove_file+0x40/0x50 drivers/base/driver.c:122
 pcmcia_remove_newid_file drivers/pcmcia/ds.c:163 [inline]
 pcmcia_unregister_driver+0x7d/0x2b0 drivers/pcmcia/ds.c:209
 ssb_modexit+0xa/0x1b [ssb]
 __do_sys_delete_module kernel/module.c:1018 [inline]
 __se_sys_delete_module kernel/module.c:961 [inline]
 __x64_sys_delete_module+0x3dc/0x5e0 kernel/module.c:961
 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x462e99
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe409dc0c58 EFLAGS: 00000246 ORIG_RAX: 00000000000000b0
RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000462e99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe409dc16bc
R13: 00000000004bccaa R14: 00000000006f6bc8 R15: 00000000ffffffff
Modules linked in: ssb(-) 3c59x nvme_core macvlan tap pata_hpt3x3 rt2x00pci null_blk tsc40 pm_notifier_error_inject notifier_error_inject mdio cdc_wdm nf_reject_ipv4 ath9k_common ath9k_hw ath pppox ppp_generic slhc ehci_platform wl12xx wlcore tps6507x_ts ioc4 nf_synproxy_core ide_gd_mod ax25 can_dev iwlwifi can_raw atm tm2_touchkey can_gw can sundance adp5588_keys rt2800mmio rt2800lib rt2x00mmio rt2x00lib eeprom_93cx6 pn533 lru_cache elants_i2c ip_set nfnetlink gameport tipc hampshire nhc_ipv6 nhc_hop nhc_udp nhc_fragment nhc_routing nhc_mobility nhc_dest 6lowpan silead brcmutil nfc mt76_usb mt76 mac80211 iptable_security iptable_raw iptable_mangle iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter ip6_vti ip_gre sit hsr veth vxcan batman_adv cfg80211 rfkill chnl_net caif nlmon vcan bridge stp llc ip6_gre ip6_tunnel tunnel6 tun joydev mousedev serio_raw ide_pci_generic piix floppy ide_core sch_fq_codel ip_tables x_tables ipv6
 [last unloaded: 3c59x]
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 3913cbf8011e1c05 ]---

In ssb_modinit, it does not fail SSB init when ssb_host_pcmcia_init failed,
however in ssb_modexit, ssb_host_pcmcia_exit calls pcmcia_unregister_driver
unconditionally, which may tigger a NULL pointer dereference issue as above.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 399500da ("ssb: pick PCMCIA host code support from b43 driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

Use remove_proc_subtree to remove the whole subtree
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
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>

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/399Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[added a few more braces]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

This device ID and device type was never released, so we can remove it
from the PCI IDs list.
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>

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@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>

Start supporting API version 47 for 22000 series.  The 9000 series is
now frozen on version 46.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

ath.git patches for 5.2. No major changes.

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>

We are discouraging the use of BUG() these days, remove the
unused ASSERT macros from skbuff.h.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The driver does not advertize NETIF_F_FRAGLIST, the stack can't
pass skbs with frags lists to the xmit function.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Recent changes to taprio did not use the correct div64 helpers,
leading to:

net/sched/sch_taprio.o: In function `taprio_dequeue':
sch_taprio.c:(.text+0x34a): undefined reference to `__divdi3'
net/sched/sch_taprio.o: In function `advance_sched':
sch_taprio.c:(.text+0xa0b): undefined reference to `__divdi3'
net/sched/sch_taprio.o: In function `taprio_init':
sch_taprio.c:(.text+0x1450): undefined reference to `__divdi3'
/home/jkicinski/devel/linux/Makefile:1032: recipe for target 'vmlinux' failed

Use math64 helpers.

Fixes: 7b9eba7b ("net/sched: taprio: fix picos_per_byte miscalculation")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>