net: wireless: bcmdhd: Fix driver hang when resetting

bus->tx_max was not being initialized when we do a reset and
the driver is statically linked.  this led to about a 50%
chance that it would be considered an illegal value when
we send the mac address to the FW.  add code to initialize
it to a safe value until we receive the right value from the fw.

Bug: 5974574

Change-Id: I28ab25d97203ef075e5354c25f85a25daaff5594
Signed-off-by: Mike J. Chen <mjchen@google.com>
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Turn interface down (only) in case of FW crash

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
cfg80211: fix a crash in nl80211_send_station

mac80211 leaves sinfo->assoc_req_ies uninitialized, causing a random
pointer memory access in nl80211_send_station.
Instead of checking if the pointer is null, use sinfo->filled, like
the rest of the fields.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
net: wireless: bcmdhd: Update to Version 5.90.195.28

- Improve scan for p2p
- Use use_rxchain support
- Use WL_WIRELESS_EXT instead of CONFIG_WIRELESS_EXT
- Initial sched_scan support

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

Conflicts:

	drivers/net/wireless/bcmdhd/bcmsdh_linux.c
	drivers/net/wireless/bcmdhd/bcmsdh_sdmmc.c
	drivers/net/wireless/bcmdhd/bcmsdh_sdmmc_linux.c
	drivers/net/wireless/bcmdhd/dhd_cfg80211.c
	drivers/net/wireless/bcmdhd/dhd_linux.c
	drivers/net/wireless/bcmdhd/dhd_sdio.c
	drivers/net/wireless/bcmdhd/include/bcmsdh_sdmmc.h
	drivers/net/wireless/bcmdhd/include/epivers.h
	drivers/net/wireless/bcmdhd/include/linuxver.h
	drivers/net/wireless/bcmdhd/include/sbchipc.h
	drivers/net/wireless/bcmdhd/include/wlioctl.h
	drivers/net/wireless/bcmdhd/wl_cfg80211.c
net: wireless: bcmdhd: Update to Version 5.90.195.30

- Fix STA features if P2P FW is in use
- Move ENABLE_P2P_INTERFACE to Makefile
- Minor fixes in PNO scan

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

Conflicts:

	drivers/net/wireless/bcm4329_presto/include/proto/802.1d.h
	drivers/net/wireless/bcmdhd/dhd.h
	drivers/net/wireless/bcmdhd/dhd_common.c
	drivers/net/wireless/bcmdhd/wl_cfg80211.h
net: wireless: bcmdhd: Add SET_RANDOM_MAC_SOFTAP option

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Minor cleaning

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Add SETSUSPENDMODE command

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
NOMMU: Lock i_mmap_mutex for access to the VMA prio list

commit 918e556ec214ed2f584e4cac56d7b29e4bb6bf27 upstream.

Lock i_mmap_mutex for access to the VMA prio list to prevent concurrent
access.  Currently, certain parts of the mmap handling are protected by
the region mutex, but not all.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ASoC: wm8962: Fix sidetone enumeration texts

commit 31794bc37bf2db84f085da52b72bfba65739b2d2 upstream.

The sidetone enumeration texts have left and right swapped.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hwmon: (max6639) Fix FAN_FROM_REG calculation

commit b63d97a36edb1aecf8c13e5f5783feff4d64c24b upstream.

RPM calculation from tachometer value does not depend on PPR.
Also, do not report negative RPM values.

Signed-off-by: Chris D Schimp <silverchris@gmail.com>
[guenter.roeck@ericsson.com: do not report negative RPM values]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hwmon: (max6639) Fix PPR register initialization to set both channels

commit 2f2da1ac0ba5b6cc6e1957c4da5ff20e67d8442b upstream.

Initialize PPR register for both channels, and set correct PPR register bits.
Also remove unnecessary variable initializations.

Signed-off-by: Chris D Schimp <silverchris@gmail.com>
[guenter.roeck@ericsson.com: Merged two patches into one]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hwmon: (ads1015) Fix file leak in probe function

commit 363434b5dc352464ac7601547891e5fc9105f124 upstream.

An error while creating sysfs attribute files in the driver's probe function
results in an error abort, but already created files are not removed. This patch
fixes the problem.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Dirk Eibach <eibach@gdsys.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PCI: workaround hard-wired bus number V2

commit 71f6bd4a23130cd2f4b036010c5790b1295290b9 upstream.

Fixes PCI device detection on IBM xSeries IBM 3850 M2 / x3950 M2
when using ACPI resources (_CRS).
This is default, a manual workaround (without this patch)
would be pci=nocrs boot param.

V2: Add dev_warn if the workaround is hit. This should reveal
how common such setups are (via google) and point to possible
problems if things are still not working as expected.
-> Suggested by Jan Beulich.

Tested-by: garyhade@us.ibm.com
Signed-off-by: Yinghai Lu <yinghai.lu@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drm/radeon/kms: fix MSI re-arm on rv370+

commit b7f5b7dec3d539a84734f2bcb7e53fbb1532a40b upstream.

MSI_REARM_EN register is a write only trigger register.
There is no need RMW when re-arming.

May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=41668

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
powerpc/perf: power_pmu_start restores incorrect values, breaking frequency events

commit 9a45a9407c69d068500923480884661e2b9cc421 upstream.

perf on POWER stopped working after commit e050e3f0a71b (perf: Fix
broken interrupt rate throttling). That patch exposed a bug in
the POWER perf_events code.

Since the PMCs count upwards and take an exception when the top bit
is set, we want to write 0x80000000 - left in power_pmu_start. We were
instead programming in left which effectively disables the counter
until we eventually hit 0x80000000. This could take seconds or longer.

With the patch applied I get the expected number of samples:

          SAMPLE events:       9948

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mac80211: Fix a rwlock bad magic bug

commit b57e6b560fc2a2742910ac5ca0eb2c46e45aeac2 upstream.

read_lock(&tpt_trig->trig.leddev_list_lock) is accessed via the path
ieee80211_open (->) ieee80211_do_open (->) ieee80211_mod_tpt_led_trig
(->) ieee80211_start_tpt_led_trig (->) tpt_trig_timer before initializing
it.
the intilization of this read/write lock happens via the path
ieee80211_led_init (->) led_trigger_register, but we are doing
'ieee80211_led_init'  after 'ieeee80211_if_add' where we
register netdev_ops.
so we access leddev_list_lock before initializing it and causes the
following bug in chrome laptops with AR928X cards with the following
script

while true
do
sudo modprobe -v ath9k
sleep 3
sudo modprobe -r ath9k
sleep 3
done

	BUG: rwlock bad magic on CPU#1, wpa_supplicant/358, f5b9eccc
	Pid: 358, comm: wpa_supplicant Not tainted 3.0.13 #1
	Call Trace:

	[<8137b9df>] rwlock_bug+0x3d/0x47
	[<81179830>] do_raw_read_lock+0x19/0x29
	[<8137f063>] _raw_read_lock+0xd/0xf
	[<f9081957>] tpt_trig_timer+0xc3/0x145 [mac80211]
	[<f9081f3a>] ieee80211_mod_tpt_led_trig+0x152/0x174 [mac80211]
	[<f9076a3f>] ieee80211_do_open+0x11e/0x42e [mac80211]
	[<f9075390>] ? ieee80211_check_concurrent_iface+0x26/0x13c [mac80211]
	[<f9076d97>] ieee80211_open+0x48/0x4c [mac80211]
	[<812dbed8>] __dev_open+0x82/0xab
	[<812dc0c9>] __dev_change_flags+0x9c/0x113
	[<812dc1ae>] dev_change_flags+0x18/0x44
	[<8132144f>] devinet_ioctl+0x243/0x51a
	[<81321ba9>] inet_ioctl+0x93/0xac
	[<812cc951>] sock_ioctl+0x1c6/0x1ea
	[<812cc78b>] ? might_fault+0x20/0x20
	[<810b1ebb>] do_vfs_ioctl+0x46e/0x4a2
	[<810a6ebb>] ? fget_light+0x2f/0x70
	[<812ce549>] ? sys_recvmsg+0x3e/0x48
	[<810b1f35>] sys_ioctl+0x46/0x69
	[<8137fa77>] sysenter_do_call+0x12/0x2

Cc: Gary Morain <gmorain@google.com>
Cc: Paul Stewart <pstew@google.com>
Cc: Abhijit Pradhan <abhijit@qca.qualcomm.com>
Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Acked-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
eCryptfs: Copy up lower inode attrs after setting lower xattr

commit 545d680938be1e86a6c5250701ce9abaf360c495 upstream.

After passing through a ->setxattr() call, eCryptfs needs to copy the
inode attributes from the lower inode to the eCryptfs inode, as they
may have changed in the lower filesystem's ->setxattr() path.

One example is if an extended attribute containing a POSIX Access
Control List is being set. The new ACL may cause the lower filesystem to
modify the mode of the lower inode and the eCryptfs inode would need to
be updated to reflect the new mode.

https://launchpad.net/bugs/926292

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Sebastien Bacher <seb128@ubuntu.com>
Cc: John Johansen <john.johansen@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ipheth: Add iPhone 4S

commit 72ba009b8a159e995e40d3b4e5d7d265acead983 upstream.

BugLink: http://bugs.launchpad.net/bugs/900802

Signed-off-by: Till Kamppeter <till.kamppeter@gmail.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
NFSv4: Ensure we throw out bad delegation stateids on NFS4ERR_BAD_STATEID

commit b9f9a03150969e4bd9967c20bce67c4de769058f upstream.

To ensure that we don't just reuse the bad delegation when we attempt to
recover the nfs4_state that received the bad stateid error.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>