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Luis R. Rodriguez 4c68b0f805 cfg80211: warn if db.txt is empty with CONFIG_CFG80211_INTERNAL_REGDB 
commit 80007efeff upstream.

It has happened twice now where elaborate troubleshooting has
undergone on systems where CONFIG_CFG80211_INTERNAL_REGDB [0]
has been set but yet net/wireless/db.txt was not updated.

Despite the documentation on this it seems system integrators could
use some more help with this, so throw out a kernel warning at boot time
when their database is empty.

This does mean that the error-prone system integrator won't likely
realize the issue until they boot the machine but -- it does not seem
to make sense to enable a build bug breaking random build testing.

[0] http://wireless.kernel.org/en/developers/Regulatory/CRDA#CONFIG_CFG80211_INTERNAL_REGDB

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Youngsin Lee <youngsin@qualcomm.com>
Cc: Raja Mani <rmani@qca.qualcomm.com>
Cc: Senthil Kumar Balasubramanian <senthilb@qca.qualcomm.com>
Cc: Vipin Mehta <vipimeht@qca.qualcomm.com>
Cc: yahuan@qca.qualcomm.com
Cc: jjan@qca.qualcomm.com
Cc: vthiagar@qca.qualcomm.com
Cc: henrykim@qualcomm.com
Cc: jouni@qca.qualcomm.com
Cc: athiruve@qca.qualcomm.com
Cc: cjkim@qualcomm.com
Cc: philipk@qca.qualcomm.com
Cc: sunnykim@qualcomm.com
Cc: sskwak@qualcomm.com
Cc: kkim@qualcomm.com
Cc: mattbyun@qualcomm.com
Cc: ryanlee@qualcomm.com
Cc: simbap@qualcomm.com
Cc: krislee@qualcomm.com
Cc: conner@qualcomm.com
Cc: hojinkim@qualcomm.com
Cc: honglee@qualcomm.com
Cc: johnwkim@qualcomm.com
Cc: jinyong@qca.qualcomm.com
Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-01 15:18:14 +08:00
..
.gitignore
chan.c nl80211: Parse channel type attribute in an ibss join request 2011-12-06 16:05:24 -05:00
core.c nl80211: advertise device AP SME 2011-11-09 16:12:38 -05:00
core.h cfg80211: export cfg80211_ref_bss 2012-02-06 14:50:37 -05:00
db.txt
debugfs.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
debugfs.h
ethtool.c wireless: add support for ethtool_ops->{get,set}_ringparam 2011-03-11 14:16:58 -05:00
ethtool.h
genregdb.awk cfg80211: relicense reg.c reg.h and genregdb.awk to ISC 2012-01-04 14:30:41 -05:00
ibss.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
Kconfig wireless: disable wext sysfs by default 2011-12-07 15:19:39 -05:00
lib80211_crypt_ccmp.c wireless: Remove unnecessary OOM logging messages 2011-09-13 15:45:02 -04:00
lib80211_crypt_tkip.c wireless: Remove unnecessary OOM logging messages 2011-09-13 15:45:02 -04:00
lib80211_crypt_wep.c wireless: Remove unnecessary OOM logging messages 2011-09-13 15:45:02 -04:00
lib80211.c lib80211: remove exports for functions not called by other modules 2011-08-09 15:42:36 -04:00
Makefile cfg80211/mac80211: add mesh join/leave commands 2010-12-06 16:01:29 -05:00
mesh.c {nl,cfg,mac}80211: Implement RSSI threshold for mesh peering 2012-03-05 15:23:15 -05:00
mlme.c cfg80211/mac80211: report signal strength for mgmt frames 2012-03-06 15:16:05 -05:00
nl80211.c nl80211: ensure interface is up in various APIs 2012-04-09 15:54:46 -04:00
nl80211.h cfg80211/mac80211: report signal strength for mgmt frames 2012-03-06 15:16:05 -05:00
radiotap.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
reg.c cfg80211: warn if db.txt is empty with CONFIG_CFG80211_INTERNAL_REGDB 2012-06-01 15:18:14 +08:00
reg.h cfg80211: relicense reg.c reg.h and genregdb.awk to ISC 2012-01-04 14:30:41 -05:00
regdb.h cfg80211: relicense reg.c reg.h and genregdb.awk to ISC 2012-01-04 14:30:41 -05:00
scan.c cfg80211: clarify timestamp in cfg80211_inform_bss 2012-03-13 14:54:20 -04:00
sme.c cfg80211: stop tracking authenticated state 2012-02-06 14:50:37 -05:00
sysfs.c mac80211: fix suspend/resume races with unregister hw 2011-08-22 14:21:40 -04:00
sysfs.h
util.c cfg80211: fix interface combinations check. 2012-04-13 14:05:35 -04:00
wext-compat.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2011-11-22 14:05:46 -05:00
wext-compat.h cfg80211: remove unused wext handler exports 2011-08-08 14:26:29 -04:00
wext-core.c net/wireless/wext-core.c: add missing kfree 2012-04-09 15:54:50 -04:00
wext-priv.c wext: fix potential private ioctl memory content leak 2010-09-20 13:41:40 -04:00
wext-proc.c
wext-sme.c cfg80211: Add background scan period attribute. 2012-03-12 14:19:34 -04:00
wext-spy.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00