Linux 3.4.83 update: wireless card (iwlwifi) stop working

[Andres Bertens]

Hi,

I updated today to 3.4.83 kernel and my wireless card stop working (log 
says: iwlwifi 0000:03:00.0: Unable to initialize device).

My laptop is a Lenovo Thinkpad X230, with an Intel 6205 AGN card.

Reverting patch
    Johannes Berg <johannes.berg@xxxxxxxxx>
       iwlwifi: always copy first 16 bytes of commands
makes it work again.

Regards,
Andres Bertens

PS
If of any interest, here are the related logs:

Linux mintaka 3.4.83-smp #1 SMP Wed Mar 12 13:10:44 CLST 2014 x86_64 
x86_64 x86_64 GNU/Linux

Linux-3.4.83, device not working:
--------------------------------
iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
iwlwifi 0000:03:00.0: pci_resource_base = ffffc90006618000
iwlwifi 0000:03:00.0: HW Revision ID = 0x34
iwlwifi 0000:03:00.0: irq 42 for MSI/MSI-X
iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN, 
REV=0xB0
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: device EEPROM VER=0x715, CALIB=0x6
iwlwifi 0000:03:00.0: Device SKU: 0x1F0
iwlwifi 0000:03:00.0: Valid Tx ant: 0x3, Valid Rx ant: 0x3
iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
iwlwifi 0000:03:00.0: Error sending CALIBRATION_CFG_CMD: time out after 
2000ms.
iwlwifi 0000:03:00.0: Current CMD queue read_ptr 2 write_ptr 3
iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 7 
[0x077f0001]
iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110
iwlwifi 0000:03:00.0: Unable to initialize device.


Linux-3.4.83, patch remove, device working:
-------------------------------------------
iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
iwlwifi 0000:03:00.0: pci_resource_base = ffffc9000672c000
iwlwifi 0000:03:00.0: HW Revision ID = 0x34
iwlwifi 0000:03:00.0: irq 42 for MSI/MSI-X
iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE disabled
iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN, 
REV=0xB0
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: device EEPROM VER=0x715, CALIB=0x6
iwlwifi 0000:03:00.0: Device SKU: 0x1F0
iwlwifi 0000:03:00.0: Valid Tx ant: 0x3, Valid Rx ant: 0x3
iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
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