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kernel-fxtec-pro1x/drivers/net/wireless
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Stanislav Yakovlev aac495a800 net/wireless: ipw2100: Fix WARN_ON occurring in wiphy_register called by ipw2100_pci_init_one 
The problem was found by Larry Finger:
http://marc.info/?l=linux-wireless&m=133702401700614&w=2

The problem is identical to the one for ipw2200 which is already fixed:
http://marc.info/?l=linux-wireless&m=133457257407196&w=2

[   17.766431] ------------[ cut here ]------------
[   17.766467] WARNING: at net/wireless/core.c:562 wiphy_register+0x34c/0x3c0 [cfg80211]()
[   17.766471] Hardware name: Latitude D600
[   17.766474] Modules linked in: ipw2100(+) libipw pcmcia cfg80211 ppdev parport_pc yenta_socket sr_mod pcmcia_rsrc parport iTCO_wdt cdrom sg rfkill pcmcia_
core lib80211 tg3 video button battery ac iTCO_vendor_support joydev shpchp pcspkr pciehp pci_hotplug autofs4 radeon ttm drm_kms_helper uhci_hcd ehci_hcd rtc
_cmos thermal drm hwmon i2c_algo_bit i2c_core processor usbcore usb_common ata_generic ata_piix ahci libahci libata
[   17.766525] Pid: 474, comm: modprobe Not tainted 3.4.0-rc7-wl+ #6
[   17.766528] Call Trace:
[   17.766541]  [<c066ad08>] ? printk+0x28/0x2a
[   17.766552]  [<c0230edd>] warn_slowpath_common+0x6d/0xa0
[   17.766563]  [<e0b253bc>] ? wiphy_register+0x34c/0x3c0 [cfg80211]
[   17.766573]  [<e0b253bc>] ? wiphy_register+0x34c/0x3c0 [cfg80211]
[   17.766578]  [<c0230f2d>] warn_slowpath_null+0x1d/0x20
[   17.766588]  [<e0b253bc>] wiphy_register+0x34c/0x3c0 [cfg80211]
[   17.766605]  [<e0b5b0d6>] ipw2100_wdev_init+0x196/0x1c0 [ipw2100]
[   17.766616]  [<e0b5d962>] ipw2100_pci_init_one+0x2b2/0x694 [ipw2100]
[   17.766632]  [<c047ce52>] local_pci_probe+0x42/0xb0
[   17.766637]  [<c047e2b0>] pci_device_probe+0x60/0x90
[   17.766645]  [<c0376de2>] ? sysfs_create_link+0x12/0x20
[   17.766654]  [<c050f1f6>] really_probe+0x56/0x2e0
[   17.766659]  [<c037636d>] ? create_dir+0x5d/0xa0
[   17.766667]  [<c0518c6b>] ? pm_runtime_barrier+0x3b/0xa0
[   17.766672]  [<c050f5e4>] driver_probe_device+0x44/0xa0
[   17.766677]  [<c047e227>] ? pci_match_device+0x97/0xa0
[   17.766681]  [<c050f6c9>] __driver_attach+0x89/0x90
[   17.766686]  [<c050f640>] ? driver_probe_device+0xa0/0xa0
[   17.766691]  [<c050da2a>] bus_for_each_dev+0x3a/0x70
[   17.766695]  [<c050ee6c>] driver_attach+0x1c/0x30
[   17.766699]  [<c050f640>] ? driver_probe_device+0xa0/0xa0
[   17.766704]  [<c050ea77>] bus_add_driver+0x187/0x280
[   17.766710]  [<c045b9cd>] ? kset_find_obj+0x2d/0x60
[   17.766715]  [<c047e2e0>] ? pci_device_probe+0x90/0x90
[   17.766719]  [<c047e2e0>] ? pci_device_probe+0x90/0x90
[   17.766724]  [<c050fb85>] driver_register+0x65/0x110
[   17.766729]  [<c047e09d>] __pci_register_driver+0x3d/0xa0
[   17.766738]  [<e09f705c>] ipw2100_init+0x5c/0x1000 [ipw2100]
[   17.766743]  [<c020110f>] do_one_initcall+0x2f/0x170
[   17.766749]  [<e09f7000>] ? 0xe09f6fff
[   17.766757]  [<c0287ce8>] sys_init_module+0xa8/0x210
[   17.766766]  [<c067a075>] syscall_call+0x7/0xb
[   17.766769] ---[ end trace 559898c6bb0d1c75 ]---
[   17.767093] ipw2100: probe of 0000:02:03.0 failed with error -5

This warning appears only if we apply Ben Hutchings' fix
http://marc.info/?l=linux-wireless&m=132720204412667&w=2
for the bug reported by Cesare Leonardi
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656813
with cfg80211 warning during device registration
("cfg80211: failed to add phy80211 symlink to netdev!").

We separate device bring up and registration with network stack
to avoid the problem.

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-08 13:43:57 -04:00
..
ath Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2012-05-30 10:32:16 -04:00
b43 b43: use pci_is_pcie() instead of obsolete pci_dev.is_pcie 2012-05-16 12:46:33 -04:00
b43legacy ssb: remove rev from boardinfo 2012-05-16 12:45:20 -04:00
brcm80211 brcmfmac: Fix likely misuse of | for & 2012-06-04 15:26:11 -04:00
hostap net/wireless: use module_pci_driver 2012-04-16 14:38:50 -04:00
ipw2x00 net/wireless: ipw2100: Fix WARN_ON occurring in wiphy_register called by ipw2100_pci_init_one 2012-06-08 13:43:57 -04:00
iwlegacy drivers/net: Convert compare_ether_addr to ether_addr_equal 2012-05-10 23:33:01 -04:00
iwlwifi iwlwifi: unregister LEDs if mac80211 registration fails 2012-06-05 14:27:30 -04:00
iwmc3200wifi drivers/net: iwmc3200 depends on EXPERIMENTAL 2012-04-21 15:28:47 -04:00
libertas USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
libertas_tf USB: Disable hub-initiated LPM for comms devices. 2012-05-18 15:42:55 -07:00
mwifiex mwifiex: support NL80211_HIDDEN_SSID_ZERO_LEN for uAP 2012-06-04 15:21:25 -04:00
orinoco USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
p54 USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
prism54 prism54: replace open-coded ARRAY_SIZE with macro 2012-04-12 15:10:47 -04:00
rt2x00 rt2x00: use atomic variable for seqno 2012-06-04 15:26:26 -04:00
rtl818x USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
rtlwifi USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
ti wlcore: fix undefined symbols when CONFIG_PM is not defined 2012-05-29 13:45:23 -04:00
zd1211rw USB: Disable hub-initiated LPM for comms devices. 2012-05-18 15:42:55 -07:00
adm8211.c net/wireless: use module_pci_driver 2012-04-16 14:38:50 -04:00
adm8211.h
airo.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
airo.h
airo_cs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
at76c50x-usb.c USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
at76c50x-usb.h
atmel.c wireless, atmel: remove pointless test for NULL before release_firmware() call 2012-04-12 15:06:07 -04:00
atmel.h
atmel_cs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
atmel_pci.c net/wireless: use module_pci_driver 2012-04-16 14:38:50 -04:00
Kconfig wireless/wl12xx/wl1251: move TI WLAN modules to a common ti subdirectory 2012-04-12 08:43:55 +03:00
mac80211_hwsim.c mac80211_hwsim: advertise interface combinations 2012-06-04 15:25:10 -04:00
mac80211_hwsim.h
Makefile wireless/wl12xx/wl1251: move TI WLAN modules to a common ti subdirectory 2012-04-12 08:43:55 +03:00
mwl8k.c drivers/net: Convert compare_ether_addr to ether_addr_equal 2012-05-10 23:33:01 -04:00
ray_cs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ray_cs.h
rayctl.h
rndis_wlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-24 11:54:29 -07:00
wl3501.h
wl3501_cs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
zd1201.c USB: Disable hub-initiated LPM for comms devices. 2012-05-18 15:42:55 -07:00
zd1201.h