[Bug 747025] Re: Modprobe passes 11n_disable=1 option to iwl3945 which doesn't support the option

[VladimirScherbaev]

user at user-laptop:~$ modinfo iwl3945
filename:       /lib/modules/2.6.38-7-generic/kernel/drivers/net/wireless/iwlwifi/iwl3945.ko
firmware:       iwlwifi-3945-2.ucode
license:        GPL
author:         Copyright(c) 2003-2010 Intel Corporation <ilw at linux.intel.com>
version:        in-tree:s
description:    Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux
srcversion:     08BA403405B97DE1DE3DA90
alias:          pci:v00008086d00004227sv*sd*bc*sc*i*
alias:          pci:v00008086d00004222sv*sd*bc*sc*i*
alias:          pci:v00008086d00004227sv*sd00001014bc*sc*i*
alias:          pci:v00008086d00004222sv*sd00001044bc*sc*i*
alias:          pci:v00008086d00004222sv*sd00001034bc*sc*i*
alias:          pci:v00008086d00004222sv*sd00001005bc*sc*i*
depends:        iwlcore,cfg80211,mac80211
vermagic:       2.6.38-7-generic SMP mod_unload modversions 686 
parm:           antenna:select antenna (1=Main, 2=Aux, default 0 [both]) (int)
parm:           swcrypto:using software crypto (default 1 [software])
 (int)
parm:           disable_hw_scan:disable hardware scanning (default 0) (deprecated) (int)
parm:           fw_restart3945:restart firmware in case of error (int)


cat intel-3945-iwlagn-disable11n.conf 
options iwl3945 11n_disable=1

user at user-laptop:/etc/modprobe.d# modprobe iwl3945
FATAL: Error inserting iwl3945 (/lib/modules/2.6.38-7-generic/kernel/drivers/net/wireless/iwlwifi/iwl3945.ko): Unknown symbol in module, or unknown parameter (see dmesg)

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https://bugs.launchpad.net/bugs/747025

Title:
  Modprobe passes 11n_disable=1 option to iwl3945 which doesn't support
  the option

Status in “module-init-tools” package in Ubuntu:
  In Progress
Status in “module-init-tools” source package in Natty:
  In Progress

Bug description:
  Binary package hint: module-init-tools

  Module-init-tools 3.12-1ubuntu5 introduced a change which
  automatically passed the 11n_disable=1 option to iwl3945. The iwl3945
  module doesn't support this option (as 802.11n is disabled by
  default). Hence iwl3945 fails to load with a simple message:

  iwl3945: Unknown option: 11n_disable

  A temporary workaround is to remove /etc/modprobe.d/intel-3945-iwlagn-
  disable11n.conf file and then run sudo modprobe iwl3945 .