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Wey-Yi Guy 34a5b4b6af iwlwifi: do not re-configure HT40 after associated 
The ht40 setting should not change after association unless channel switch

This fix a problem we are seeing which cause uCode assert because driver
sending invalid information and make uCode confuse

Here is the firmware assert message:
kernel: iwlagn 0000:03:00.0: Microcode SW error detected.  Restarting 0x82000000.
kernel: iwlagn 0000:03:00.0: Loaded firmware version: 17.168.5.3 build 42301
kernel: iwlagn 0000:03:00.0: Start IWL Error Log Dump:
kernel: iwlagn 0000:03:00.0: Status: 0x000512E4, count: 6
kernel: iwlagn 0000:03:00.0: 0x00002078 | ADVANCED_SYSASSERT
kernel: iwlagn 0000:03:00.0: 0x00009514 | uPc
kernel: iwlagn 0000:03:00.0: 0x00009496 | branchlink1
kernel: iwlagn 0000:03:00.0: 0x00009496 | branchlink2
kernel: iwlagn 0000:03:00.0: 0x0000D1F2 | interruptlink1
kernel: iwlagn 0000:03:00.0: 0x00000000 | interruptlink2
kernel: iwlagn 0000:03:00.0: 0x01008035 | data1
kernel: iwlagn 0000:03:00.0: 0x0000C90F | data2
kernel: iwlagn 0000:03:00.0: 0x000005A7 | line
kernel: iwlagn 0000:03:00.0: 0x5080B520 | beacon time
kernel: iwlagn 0000:03:00.0: 0xCC515AE0 | tsf low
kernel: iwlagn 0000:03:00.0: 0x00000003 | tsf hi
kernel: iwlagn 0000:03:00.0: 0x00000000 | time gp1
kernel: iwlagn 0000:03:00.0: 0x29703BF0 | time gp2
kernel: iwlagn 0000:03:00.0: 0x00000000 | time gp3
kernel: iwlagn 0000:03:00.0: 0x000111A8 | uCode version
kernel: iwlagn 0000:03:00.0: 0x000000B0 | hw version
kernel: iwlagn 0000:03:00.0: 0x00480303 | board version
kernel: iwlagn 0000:03:00.0: 0x09E8004E | hcmd
kernel: iwlagn 0000:03:00.0: CSR values:
kernel: iwlagn 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
kernel: iwlagn 0000:03:00.0:        CSR_HW_IF_CONFIG_REG: 0X00480303
kernel: iwlagn 0000:03:00.0:          CSR_INT_COALESCING: 0X0000ff40
kernel: iwlagn 0000:03:00.0:                     CSR_INT: 0X00000000
kernel: iwlagn 0000:03:00.0:                CSR_INT_MASK: 0X00000000
kernel: iwlagn 0000:03:00.0:           CSR_FH_INT_STATUS: 0X00000000
kernel: iwlagn 0000:03:00.0:                 CSR_GPIO_IN: 0X00000030
kernel: iwlagn 0000:03:00.0:                   CSR_RESET: 0X00000000
kernel: iwlagn 0000:03:00.0:                CSR_GP_CNTRL: 0X080403c5
kernel: iwlagn 0000:03:00.0:                  CSR_HW_REV: 0X000000b0
kernel: iwlagn 0000:03:00.0:              CSR_EEPROM_REG: 0X07d60ffd
kernel: iwlagn 0000:03:00.0:               CSR_EEPROM_GP: 0X90000001
kernel: iwlagn 0000:03:00.0:              CSR_OTP_GP_REG: 0X00030001
kernel: iwlagn 0000:03:00.0:                 CSR_GIO_REG: 0X00080044
kernel: iwlagn 0000:03:00.0:            CSR_GP_UCODE_REG: 0X000093bb
kernel: iwlagn 0000:03:00.0:           CSR_GP_DRIVER_REG: 0X00000000
kernel: iwlagn 0000:03:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
kernel: iwlagn 0000:03:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
kernel: iwlagn 0000:03:00.0:                 CSR_LED_REG: 0X00000078
kernel: iwlagn 0000:03:00.0:        CSR_DRAM_INT_TBL_REG: 0X88214dd2
kernel: iwlagn 0000:03:00.0:        CSR_GIO_CHICKEN_BITS: 0X27800200
kernel: iwlagn 0000:03:00.0:             CSR_ANA_PLL_CFG: 0X00000000
kernel: iwlagn 0000:03:00.0:           CSR_HW_REV_WA_REG: 0X0001001a
kernel: iwlagn 0000:03:00.0:        CSR_DBG_HPET_MEM_REG: 0Xffff0010
kernel: iwlagn 0000:03:00.0: FH register values:
kernel: iwlagn 0000:03:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X21316d00
kernel: iwlagn 0000:03:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X021479c0
kernel: iwlagn 0000:03:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000060
kernel: iwlagn 0000:03:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
kernel: iwlagn 0000:03:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
kernel: iwlagn 0000:03:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
kernel: iwlagn 0000:03:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
kernel: iwlagn 0000:03:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0001
kernel: iwlagn 0000:03:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
kernel: iwlagn 0000:03:00.0: Start IWL Event Log Dump: display last 20 entries
kernel: ------------[ cut here ]------------
WARNING: at net/mac80211/util.c:1208 ieee80211_reconfig+0x1f1/0x407()
kernel: Hardware name: 4290W4H
kernel: Pid: 1896, comm: kworker/0:0 Not tainted 3.1.0 #2
kernel: Call Trace:
kernel:  [<ffffffff81036558>] ? warn_slowpath_common+0x73/0x87
kernel:  [<ffffffff813b8966>] ? ieee80211_reconfig+0x1f1/0x407
kernel:  [<ffffffff8139e8dc>] ? ieee80211_recalc_smps_work+0x32/0x32
kernel:  [<ffffffff8139e95a>] ? ieee80211_restart_work+0x7e/0x87
kernel:  [<ffffffff810472fa>] ? process_one_work+0x1c8/0x2e3
kernel:  [<ffffffff810480c9>] ? worker_thread+0x17a/0x23a
kernel:  [<ffffffff81047f4f>] ? manage_workers.clone.18+0x15b/0x15b
kernel:  [<ffffffff81047f4f>] ? manage_workers.clone.18+0x15b/0x15b
kernel:  [<ffffffff8104ba97>] ? kthread+0x7a/0x82
kernel:  [<ffffffff813d21b4>] ? kernel_thread_helper+0x4/0x10
kernel:  [<ffffffff8104ba1d>] ? kthread_flush_work_fn+0x11/0x11
kernel:  [<ffffffff813d21b0>] ? gs_change+0xb/0xb

Cc: <stable@kernel.org> 3.1+
Reported-by: Udo Steinberg <udo@hypervisor.org>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-02 14:53:17 -05:00
..
accessibility
acpi Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 17:08:43 +02:00
amba
ata
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2011-10-25 13:25:22 +02:00
auxdisplay
base Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2011-10-25 15:18:39 +02:00
bcma
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-10-25 12:11:02 +02:00
bluetooth Bluetooth: Add support for Broadcom BCM20702A0 2011-11-08 13:15:43 -02:00
cdrom
char Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 17:03:38 +02:00
clk
clocksource Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 17:15:03 +02:00
connector
cpufreq Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 17:15:03 +02:00
cpuidle
crypto
dca
devfreq
dio
dma
edac
eisa
firewire
firmware
gpio
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-10-25 12:11:02 +02:00
hid Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2011-10-25 15:18:39 +02:00
hv
hwmon hwmon: (w83627ehf) Better fix for negative temperature values 2011-10-24 11:09:48 -07:00
hwspinlock
i2c
ide Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-10-25 12:11:02 +02:00
idle
ieee802154
infiniband net: add skb frag size accessors 2011-10-19 03:10:46 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-10-25 12:11:02 +02:00
iommu Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 16:17:32 +02:00
isdn Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty 2011-10-26 15:11:09 +02:00
leds
lguest
macintosh
mca
md Merge branch 'for-linus' of git://neil.brown.name/md 2011-10-26 21:39:42 +02:00
media Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2011-10-25 15:18:39 +02:00
memstick
message
mfd Merge branch 'for-linus' of git://opensource.wolfsonmicro.com/regmap 2011-10-25 13:57:45 +02:00
misc Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2011-10-25 12:13:59 +02:00
mmc
mtd
net iwlwifi: do not re-configure HT40 after associated 2011-12-02 14:53:17 -05:00
nfc
nubus
of
oprofile
parisc
parport parport_pc: release IO region properly if unsupported ITE887x card is found 2011-10-18 14:17:40 -07:00
pci Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 16:11:53 +02:00
pcmcia ARM: 7024/1: simpad: Cleanup CS3 accessors. 2011-10-17 09:12:42 +01:00
pinctrl pinctrl/sirf: fix sirfsoc_get_group_pins prototype 2011-10-25 10:43:57 +02:00
platform
pnp
power
pps
ps3
ptp
rapidio
regulator
rtc
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2011-10-25 13:25:22 +02:00
sbus
scsi Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd 2011-10-26 21:33:50 +02:00
sfi
sh
sn
spi
ssb
staging Remove stale "depends on NETDEV_1000"in staging drivers 2011-10-26 17:21:19 +02:00
target Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-10-25 12:11:02 +02:00
tc
telephony
thermal
tty Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty 2011-10-26 15:11:09 +02:00
uio uio: Support physical addresses >32 bits on 32-bit systems 2011-10-18 11:18:57 -07:00
usb Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2011-10-25 15:18:39 +02:00
uwb
vhost
video Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 16:17:32 +02:00
virt
virtio Add ethtool -g support to virtio_net 2011-10-24 02:07:21 -04:00
vlynq
w1
watchdog Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 17:03:38 +02:00
xen Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-26 16:44:09 +02:00
zorro zorro: Fix four checkpatch warnings 2011-10-24 21:00:34 +02:00
Kconfig Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging 2011-10-26 15:39:02 +02:00
Makefile Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging 2011-10-26 15:39:02 +02:00