Commit Graph

619785 Commits

Author SHA1 Message Date
Shaohua Li
b761fe226b bpf: clean up put_cpu_var usage
put_cpu_var takes the percpu data, not the data returned from
get_cpu_var.

This doesn't change the behavior.

Cc: Tejun Heo <tj@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 22:09:17 -04:00
Jacob Keller
ac28b41aac igb: restore PPS signal on igb_ptp_reset
When a reset occurs, the PPS SYS_WRAP interrupt was not re-enabled which
resulted in disabling of the PPS signaling. Fix this by recording when
the interrupt is on and ensuring that we re-enable it every time we
reset.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-27 19:00:52 -07:00
Todd Fujinaka
0742337c19 igb: bump version to igb-5.4.0
Bump igb version to match other igb drivers.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-27 19:00:52 -07:00
Todd Fujinaka
3d05fd0a99 igbvf: bump version to igbvf-2.4.0
Bump version to match other igbvf drivers.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-27 19:00:52 -07:00
Wei Yongjun
7a823471ad igb: fix non static symbol warning
Fixes the following sparse warning:

drivers/net/ethernet/intel/igb/igb_ethtool.c:2707:5: warning:
 symbol 'igb_rxnfc_write_vlan_prio_filter' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-27 19:00:52 -07:00
Rafał Miłecki
7f00ee2bbc brcmfmac: use correct skb freeing helper when deleting flowring
Flowrings contain skbs waiting for transmission that were passed to us
by netif. It means we checked every one of them looking for 802.1x
Ethernet type. When deleting flowring we have to use freeing function
that will check for 802.1x type as well.

Freeing skbs without a proper check was leading to counter not being
properly decreased. This was triggering a WARNING every time
brcmf_netdev_wait_pend8021x was called.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend@broadcom.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-27 18:47:55 +03:00
Rafał Miłecki
2f0e56fa37 brcmfmac: replace WARNING on timeout with a simple error message
Even with timeout increased to 950 ms we get WARNINGs from time to time.
It mostly happens on A-MPDU stalls (e.g. when station goes out of
range). It may take up to 5-10 secods for the firmware to recover and
for that time it doesn't process packets.

It's still useful to have a message on time out as it may indicate some
firmware problem and incorrect key update. Raising a WARNING however
wasn't really that necessary, it doesn't point to any driver bug anymore
and backtrace wasn't much useful.

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>
2016-09-27 18:47:08 +03:00
Larry Finger
8334ffdc82 rtlwifi: Add explicit values to hw_variables enum
The entries in this enum may be referenced in debug output. Adding explicit
values simplifies the lookup.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-27 18:46:03 +03:00
Larry Finger
1cc49a5b54 rtlwifi: Add HAL_DEF_WOWLAN case to *_get_hw() routines
Only rtl8821ae implements WOWLAN; however, the other drivers may receive
a call requesting information about this mode. The other drivers need to
ignore the request rather than logging that the default branch of the
switch statement has been reached.

Reported by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-27 18:46:03 +03:00
Joe Perches
ad5748893b rtlwifi: Add switch variable to 'switch case not processed' messages
Help along debugging by showing what switch/case variable is not
being processed in these messages.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-27 18:44:19 +03:00
Kalle Valo
0ad523c8a1 * Some new HW IDs;
* Small fix in CTDP error handling;
 * Remove support for older firmwares;
 * Clean-ups and a few simple fixes here and there.
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Merge tag 'iwlwifi-next-for-kalle-2015-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

* Some new HW IDs;
* Small fix in CTDP error handling;
* Remove support for older firmwares;
* Clean-ups and a few simple fixes here and there.
2016-09-27 18:32:24 +03:00
jbaron@akamai.com
e96e0eded1 bnx2x: free the mac filter group list before freeing the cmd
The group list must be freed prior to freeing the command otherwise
we have a use-after-free.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Cc: Yuval Mintz <Yuval.Mintz@qlogic.com>
Cc: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 09:55:18 -04:00
David S. Miller
44675a6df8 Merge branch 'mediatek-pdam-lro-fixes'
Nelson Chang says:

====================
net: ethernet: mediatek: some bug fixes for PDAM and HW LRO

1) Add to stop PDMA while stopping the frame engine
2) Modify the register settings for LRO relinquishments
3) Jump out from the waiting loop while LRO relinquishments are done
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 09:41:38 -04:00
Nelson Chang
ca3ba106a9 net: ethernet: mediatek: bug fix to disable HW LRO
(1) Modify the register settings for LRO relinquishments
(2) Jump out from the waiting loop while LRO relinquishments are done

Signed-off-by: Nelson Chang <nelson.chang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 09:41:31 -04:00
Nelson Chang
6bf563d50a net: ethernet: mediatek: add to stop PDMA while stopping the frame engine
Stop PDMA while the frame engine is going to stop.

Signed-off-by: Nelson Chang <nelson.chang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 09:41:31 -04:00
Ben Greear
30d2049b32 ath10k: support up to 64 vdevs
The (1 << x) - 1 trick won't work when you
are trying to fill up all 64 bits, so add special
case for that.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[kvalo@qca.qualcomm.com: remove the sentence about moving limits]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:18:33 +03:00
Ben Greear
15138fdf32 ath10k: document cycle count related counters
They are not necessarily named in an intuitive manner,
so at least add some comments to help the next person.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:18:29 +03:00
Ben Greear
aa66ba0c31 ath10k: fix typo in logging message
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:18:24 +03:00
Vasanthakumar Thiagarajan
2f38c3c01d ath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode
Chipset from QCA99X0 onwards (QCA99X0, QCA9984, QCA4019 & future)
rx_hdr_status is not padded to align in 4-byte boundary. Define a
new hw_params field to handle different alignment behaviour between
different hw. This patch fixes improper retrieval of rfc1042 header
with QCA4019. This patch along with "ath10k: Properly remove padding
from the start of rx payload" will fix traffic failure in ethernet
decap mode for QCA4019.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:15:51 +03:00
Masahiro Yamada
65901a9e70 ath10k: do not check if reset is NULL
Since reset_control_get() never returns NULL, we can use IS_ERR()
instead of IS_ERR_OR_NULL().  The return statements can be simpler
as well.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:11:52 +03:00
Masahiro Yamada
c5d8a34675 ath10k: use devm_reset_control_get() instead of reset_control_get()
Use the managed variant of reset_control_get() to simplify the
failure path and the .remove callback.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:11:48 +03:00
Masahiro Yamada
828662753d ath10k: use devm_clk_get() instead of clk_get()
Use the managed variant of clk_get() to simplify the failure path
and the .remove callback.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:11:43 +03:00
Joe Perches
e13dbead97 ath10k: spelling and miscellaneous neatening
Correct some trivial comment typos.
Remove unnecessary parentheses in a long line.

Signed-off-by: Joe Perches <joe@perches.com>
[kvalo@qca.qualcomm.com: drop the change for return]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-09-27 15:00:48 +03:00
David S. Miller
3783c09eab Merge branch 'bcmgenet-phydev-revert'
Philippe Reynes says:

====================
net: bcmgenet: only use new api ethtool_{get|set}_link_ksettings

Some times ago, a serie of patches were committed :
- commit 62469c7600 ("net: ethernet: bcmgenet: use phydev from struct net_device")
- commit 6b352ebccb ("net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings")
The first patch add a regression on this driver, so it should be reverted.
As the second patch depend on the former, it should be reverted too.

The first patch is buggy because there is a "trick" in this driver.
The structure phydev is kept in the private data when the interface
go down, and used when the interface go up to enable the phy before
the function phy_connect is called.

I don't have this hardware, neither the datasheet. So I won't
update the driver to avoid this trick.

But the real goal of the first serie was to move to the new api
ethtool_{get|set}_link_ksettings. So I provide a new version of
the patch without the "cleaning" of driver to use the phydev
store in the net_device structure.

Changelog:
v3:
- use priv instead of dev (so all the code use the same phydev)
v2:
- use Florian Fainelli patches for the revert instead of Jaedon Shin
- simply use net: bcmgenet: for the prefix of the patch
====================

Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 07:43:56 -04:00
Philippe Reynes
fa92bf04f5 net: bcmgenet: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 07:43:07 -04:00
Florian Fainelli
0299b6acf9 Revert "net: ethernet: bcmgenet: use phydev from struct net_device"
This reverts commit 62469c7600 ("net: ethernet: bcmgenet: use phydev
from struct net_device") because it causes GENETv1/2/3 adapters to
expose the following behavior after an ifconfig down/up sequence:

PING fainelli-linux (10.112.156.244): 56 data bytes
64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.352 ms
64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.472 ms (DUP!)
64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.496 ms (DUP!)
64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.517 ms (DUP!)
64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.536 ms (DUP!)
64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.557 ms (DUP!)
64 bytes from 10.112.156.244: seq=1 ttl=61 time=752.448 ms (DUP!)

This was previously fixed by commit 5dbebbb44a ("net: bcmgenet:
Software reset EPHY after power on") but the commit we are reverting was
essentially making this previous commit void, here is why.

Without commit 62469c7600 we would have the following scenario after
an ifconfig down then up sequence:

- bcmgenet_open() calls bcmgenet_power_up() to make sure the PHY is
  initialized *before* we get to initialize the UniMAC, this is
  critical to ensure the PHY is in a correct state, priv->phydev is
  valid, this code executes fine

- second time from bcmgenet_mii_probe(), through the normal
  phy_init_hw() call (which arguably could be optimized out)

Everything is fine in that case. With commit 62469c7600, we would have
the following scenario to happen after an ifconfig down then up
sequence:

- bcmgenet_close() calls phy_disonnect() which makes dev->phydev become
  NULL

- when bcmgenet_open() executes again and calls bcmgenet_mii_reset() from
  bcmgenet_power_up() to initialize the internal PHY, the NULL check
  becomes true, so we do not reset the PHY, yet we keep going on and
  initialize the UniMAC, causing MAC activity to occur

- we call bcmgenet_mii_reset() from bcmgenet_mii_probe(), but this is
  too late, the PHY is botched, and causes the above bogus pings/packets
  transmission/reception to occur

Reported-by: Jaedon Shin <jaedon.shin@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 07:43:07 -04:00
Philippe Reynes
62c8d3daad Revert "net: ethernet: bcmgenet: use new api ethtool_{get|set}_link_ksettings"
This reverts commit 6b352ebccb ("net: ethernet: broadcom: bcmgenet:
use new api ethtool_{get|set}_link_ksettings").

We needs to revert the commit 62469c7600 ("net: ethernet: bcmgenet:
use phydev from struct net_device"), because this commit add a
regression. As the commit 6b352ebccb ("net: ethernet: broadcom:
bcmgenet: use new api ethtool_{get|set}_link_ksettings") depend
on the first one, we also need to revert it first.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 07:43:07 -04:00
Mickaël Salaün
1955351da4 bpf: Set register type according to is_valid_access()
This prevent future potential pointer leaks when an unprivileged eBPF
program will read a pointer value from its context. Even if
is_valid_access() returns a pointer type, the eBPF verifier replace it
with UNKNOWN_VALUE. The register value that contains a kernel address is
then allowed to leak. Moreover, this fix allows unprivileged eBPF
programs to use functions with (legitimate) pointer arguments.

Not an issue currently since reg_type is only set for PTR_TO_PACKET or
PTR_TO_PACKET_END in XDP and TC programs that can only be loaded as
privileged. For now, the only unprivileged eBPF program allowed is for
socket filtering and all the types from its context are UNKNOWN_VALUE.
However, this fix is important for future unprivileged eBPF programs
which could use pointers in their context.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 03:51:34 -04:00
Naveen N. Rao
973d94d8a8 bpf samples: update tracex5 sample to use __seccomp_filter
seccomp_phase1() does not exist anymore. Instead, update sample to use
__seccomp_filter(). While at it, set max locked memory to unlimited.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 03:48:58 -04:00
Naveen N. Rao
2b064fff85 bpf samples: fix compiler errors with sockex2 and sockex3
These samples fail to compile as 'struct flow_keys' conflicts with
definition in net/flow_dissector.h. Fix the same by renaming the
structure used in the sample.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27 03:48:58 -04:00
Philippe Reynes
b6f5be2873 net: tg3: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26 20:17:09 -04:00
Emmanuel Grumbach
9cd70e80f7 iwlwifi: mvm: initialise ADD_STA before sending it to the firmware
When we unshare a queue, the ADD_STA was not properly
initialised.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-26 23:15:26 +03:00
Sara Sharon
3ac37d0109 iwlwifi: allow error table address new range
The firmware has a new smart linker, and this table can now be
in ICCM or in SMEM. It is not hardcoded, but depends on code
size. Allow the full range.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-26 23:15:25 +03:00
Emmanuel Grumbach
4dc6511f86 iwlwifi: mvm: fix typo in TC_CMD_SEC_KEY_FROM_TABLE
This define should really be TX_CMD_SEC_KEY_FROM_TABLE

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-26 23:15:24 +03:00
Luca Coelho
4b87e5af63 iwlwifi: remove support for fw older than -17 and -22
FW versions older than -17 for 3160 and 7260 and older than -22 for
newer NICs are not supported anymore.  Don't load these versions
and remove code that handles them.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-09-26 23:15:14 +03:00
Rafał Miłecki
2df86ad959 brcmfmac: drop unused fields from struct brcmf_pub
They seem to be there from the first day. We calculate these values but
never use them.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:51:02 +03:00
Rafał Miłecki
23e9c128ad brcmfmac: fix memory leak in brcmf_fill_bss_param
This function is called from get_station callback which means that every
time user space was getting/dumping station(s) we were leaking 2 KiB.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Fixes: 1f0dc59a6d ("brcmfmac: rework .get_station() callback")
Cc: stable@vger.kernel.org # 4.2+
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:49:10 +03:00
Larry Finger
b42fbed6b8 rtl8xxxu: Stop log spam from each successful interrupt
As soon as debugging is turned on, the logs are filled with messages
reporting the interrupt status. As this quantity is usually zero, this
output is not needed. In fact, there will be a report if the status is
not zero, thus the debug line in question could probably be deleted.
Rather than taking that action, I have changed it to only be printed
when the newly added RTL8XXXU_DEBUG_INTERRUPT bit is set in the debug
mask.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:41:37 +03:00
Jes Sorensen
2fc5dd27bf rtl8xxxu: Use a struct rtl8xxxu_fileops * in rtl8xxxu_init_device()
This saves some 217, or about, derefences of priv->fops.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:41:36 +03:00
Jes Sorensen
c0a99bbb1b rtl8xxxu: Clean up llt_init() API
Remove last_tx_page argument from the llt_init() function. The
rtl8xxxu_fileops structure contains the correct TX_TOTAL_PAGE_NUM
value for the device, and rtl8xxxu_auto_llt_table() doesn't need to
know the value in the first place.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:41:36 +03:00
Jes Sorensen
3a589fae4a rtl8xxxu: Fix off by one error calculating pubq
This was detected tracing the 8188eu driver, but doesn't seem to make
any difference when using it.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:41:35 +03:00
Amitkumar Karwar
ac3b561721 mwifiex: code rearrangement in mwifiex_usb_host_to_card()
This patch helps get rid of goto statement and improves readability.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:39:43 +03:00
Cathy Luo
5476f8030d mwifiex: fix race condition causing tx timeout
It's been observed that in a corner case mwifiex_usb_tx_complete()
gets called before we exit from mwifiex_usb_host_to_card() after
submitting the urb. 'data_sent' flag remains set in this case. It
blocks further Tx packets and triggers watchdog timeout.

The problem is fixed by setting data_sent and port_block flag at
correct place.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:39:42 +03:00
Cathy Luo
1afac196c1 mwifiex: fix kernel crash for USB chipsets
Following crash issue is observed during TCP traffic stress
test

[ 2253.625439] NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s!
[kworker/u17:1:5191]
[ 2253.625520] Call Trace:
[ 2253.625527]  [<ffffffffc0b47030>] ? moal_spin_lock+0x30/0x30
[usb8xxx]
[ 2253.625533]  [<ffffffffc0ac3ceb>] ? wlan_wmm_lists_empty+0xb/0xf0
[mlan]
[ 2253.625537]  [<ffffffffc0ab0ea3>] mlan_main_process+0x1b3/0x720
[mlan]
[ 2253.625540]  [<ffffffffc0b337f5>] woal_main_work_queue+0x45/0x80
[usb8xxx]
[ 2253.625543]  [<ffffffff8108aaf0>] process_one_work+0x150/0x3f0
[ 2253.625545]  [<ffffffff8108b1e1>] worker_thread+0x121/0x520
[ 2253.625547]  [<ffffffff8108b0c0>] ? rescuer_thread+0x330/0x330
[ 2253.625549]  [<ffffffff81090222>] kthread+0xd2/0xf0
[ 2253.625551]  [<ffffffff81090150>] ?
kthread_create_on_node+0x1c0/0x1c0
[ 2253.625553]  [<ffffffff8179423c>] ret_from_fork+0x7c/0xb0
[ 2253.625555]  [<ffffffff81090150>] ?
kthread_create_on_node+0x1c0/0x1c0

In mwifiex_usb_tx_complete(), we are updating port->block_status first
and then freeing the skb attached to that URB. We may end up attaching
new skb to URB in a corner case and same will be freed. This results in
the kernel crash. The problem is solved by changing the sequence.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:39:41 +03:00
Hante Meuleman
92c3136047 brcmfmac: simplify mapping of auth type
The 802.11 standard only has four valid auth type configurations of which
our firmware only supports two, ie. Open System and Shared Key. Simplify
the mapping falling back to automatic for other types specified by
user-space.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:56 +03:00
Hante Meuleman
a7ed7828ec brcmfmac: fix out of bound access on clearing wowl wake indicator
Clearing the wowl wakeindicator happens with a rather odd
construction where the string "clear" is used to set the iovar
wowl_wakeind. This was implemented incorrectly as it caused an
out of bound access. Use an intermediate variable of correct
length and copy string in that. Problem was found using coverity.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:55 +03:00
Hante Meuleman
2b7425f362 brcmfmac: fix clearing entry IPv6 address
When IPv6 address is to be cleared there is a possible out of
bound access. But also the clearing of the last entry and the
adjustment of total number of stored IPv6 addresses is not
updated. This patch fixes that bug. Bug was found using coverity.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:55 +03:00
Hante Meuleman
835680b82f brcmfmac: remove unnecessary null pointer check
in the function brcmf_bus_start() in the exception handling a
check is made to dermine whether ifp is null, though this is not
possible. Removing the unnessary check.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:54 +03:00
Arend Van Spriel
8fa5fdec09 brcmfmac: remove worker from .ndo_set_mac_address() callback
As it turns out there is no need to use a worker for the callback
because it is not called from atomic context.

Reported-by: Dan Williams <dcbw@redhat.com>
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>
2016-09-26 20:35:54 +03:00
Arend Van Spriel
26305d3d72 brcmfmac: initialize variable in brcmf_sdiod_regrl()
In case of an error the variable returned is uninitialized. The caller
will probably check the error code before using it, but better assure
it is set to zero.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-26 20:35:53 +03:00