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Emmanuel Grumbach b58f0659f7 iwlwifi: mvm: fix regulatory domain update when the firmware starts 
commit 82715ac71e upstream.

When the firmware starts, it doesn't have any regulatory
information, hence it uses the world wide limitations. The
driver can feed the firmware with previous knowledge that
was kept in the driver, but the firmware may still not
update its internal tables.

This happens when we start a BSS interface, and then the
firmware can change the regulatory tables based on our
location and it'll use more lenient, location specific
rules. Then, if the firmware is shut down (when the
interface is brought down), and then an AP interface is
created, the firmware will forget the country specific
rules.

The host will think that we are in a certain country that
may allow channels and will try to teach the firmware about
our location, but the firmware may still not allow to drop
the world wide limitations and apply country specific rules
because it was just re-started.

In this case, the firmware will reply with MCC_RESP_ILLEGAL
to the MCC_UPDATE_CMD. In that case, iwlwifi needs to let
the upper layers (cfg80211 / hostapd) know that the channel
list they know about has been updated.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=201105

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-01 09:42:50 +01:00
arch ARM: trusted_foundations: do not use naked function 2018-12-01 09:42:49 +01:00
block SCSI: fix queue cleanup race before queue initialization is done 2018-11-21 09:24:09 +01:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: user - fix leaking uninitialized memory to userspace 2018-11-21 09:24:15 +01:00
Documentation x86/mm: Move LDT remap out of KASLR region on 5-level paging 2018-11-27 16:10:50 +01:00
drivers iwlwifi: mvm: fix regulatory domain update when the firmware starts 2018-12-01 09:42:50 +01:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs fs/exofs: fix potential memory leak in mount option parsing 2018-11-27 16:10:47 +01:00
include netfilter: ipset: Correct rcu_dereference() call in ip_set_put_comment() 2018-11-27 16:10:48 +01:00
init init: rename and re-order boot_cpu_state_init() 2018-08-15 18:12:48 +02:00
ipc ipc/sem.c: prevent queue.status tearing in semop 2018-09-05 09:26:30 +02:00
kernel sched/core: Take the hotplug lock in sched_init_smp() 2018-11-27 16:10:49 +01:00
lib lib/raid6: Fix arm64 test build 2018-11-27 16:10:48 +01:00
mm mm/swapfile.c: use kvzalloc for swap_info_struct allocation 2018-11-21 09:24:15 +01:00
net libceph: fall back to sendmsg for slab pages 2018-11-27 16:10:51 +01:00
samples samples/bpf: Check the error of write() and read() 2018-08-24 13:09:12 +02:00
scripts kconfig: fix the rule of mainmenu_stmt symbol 2018-11-04 14:52:45 +01:00
security apparmor: Fix uninitialized value in aa_split_fqname 2018-11-27 16:10:47 +01:00
sound ALSA: oss: Use kvzalloc() for local buffer allocations 2018-12-01 09:42:49 +01:00
tools perf test code-reading: Fix perf_env setup for PTI entry trampolines 2018-11-27 16:10:50 +01:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: arm64: Fix caching of host MDCR_EL2 value 2018-11-13 11:15:08 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS MAINTAINERS: Add Sasha as a stable branch maintainer 2018-12-01 09:42:50 +01:00
Makefile Linux 4.14.84 2018-11-27 16:10:52 +01:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.