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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
..
9p
802 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-02 17:53:39 -07:00
8021q Revert "net: maintain namespace isolation between vlan and real device" 2012-05-10 23:03:34 -04:00
appletalk
atm Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ax25 net ax25: Reorder ax25_exit to remove races. 2012-04-19 15:37:48 -04:00
batman-adv
bluetooth Bluetooth: mgmt: Fix device_connected sending order 2012-05-14 13:56:15 -04:00
bridge set fake_rtable's dst to NULL to avoid kernel Oops 2012-04-24 00:16:24 -04:00
caif caif: Fix memory leakage in the chnl_net.c. 2012-04-13 11:01:44 -04:00
can
ceph libceph: isolate kmap() call in write_partial_msg_pages() 2012-03-22 10:47:52 -05:00
core pktgen: fix module unload for good 2012-05-18 13:54:33 -04:00
dcb
dccp
decnet Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
dns_resolver
dsa
econet Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ethernet Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ieee802154 6lowpan: add missing spin_lock_init() 2012-04-26 05:32:55 -04:00
ipv4 tcp: do_tcp_sendpages() must try to push data out on oom conditions 2012-05-17 18:31:43 -04:00
ipv6 tcp: fix TCP_MAXSEG for established IPv6 passive sockets 2012-04-22 17:09:35 -04:00
ipx
irda Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
iucv Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-03-22 18:15:32 -07:00
key net/key/af_key.c: add missing kfree_skb 2012-04-13 11:01:44 -04:00
l2tp net: l2tp: unlock socket lock before returning from l2tp_ip_sendmsg 2012-05-02 21:04:33 -04:00
lapb Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
llc
mac80211 mac80211: fix AP mode EAP tx for VLAN stations 2012-04-30 14:40:05 -04:00
netfilter netfilter: ipset: fix hash size checking in kernel 2012-05-16 15:38:49 -04:00
netlabel netlabel: use GFP flags from caller instead of GFP_ATOMIC 2012-03-22 19:29:57 -04:00
netlink netlink: fix races after skb queueing 2012-04-06 04:21:06 -04:00
netrom Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
nfc NFC: Fix the LLCP Tx fragmentation loop 2012-04-11 15:09:33 -04:00
openvswitch openvswitch: checking wrong variable in queue_userspace_packet() 2012-05-13 15:47:34 -04:00
packet Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
phonet phonet: Sort out initiailziation and cleanup code. 2012-04-13 11:01:43 -04:00
rds RDS: use gfp flags from caller in conn_alloc() 2012-03-22 19:29:58 -04:00
rfkill
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-02 17:53:39 -07:00
rxrpc
sched netem: fix possible skb leak 2012-05-01 13:40:48 -04:00
sctp sctp: check cached dst before using it 2012-05-10 23:15:47 -04:00
sunrpc auth_gss: the list of pseudoflavors not being parsed correctly 2012-05-03 12:35:33 -04:00
tipc
unix poll: add poll_requested_events() and poll_does_not_wait() functions 2012-03-23 16:58:38 -07:00
wanrouter
wimax
wireless cfg80211: warn if db.txt is empty with CONFIG_CFG80211_INTERNAL_REGDB 2012-06-01 15:18:14 +08:00
x25
xfrm xfrm: Access the replay notify functions via the registered callbacks 2012-03-22 19:29:58 -04:00
compat.c Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
Kconfig
Makefile
nonet.c
socket.c tcp: tcp_sendpages() should call tcp_push() once 2012-04-05 19:04:27 -04:00
sysctl_net.c