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Peter Große bb23fbd8fb mac80211: Fix setting TX power on monitor interfaces 
[ Upstream commit 3a3713ec36 ]

Instead of calling ieee80211_recalc_txpower on monitor interfaces
directly, call it using the virtual monitor interface, if one exists.

In case of a single monitor interface given, reject setting TX power,
if no virtual monitor interface exists.

That being checked, don't warn in ieee80211_bss_info_change_notify,
after setting TX power on a monitor interface.

Fixes warning:
------------[ cut here ]------------
 WARNING: CPU: 0 PID: 2193 at net/mac80211/driver-ops.h:167
 ieee80211_bss_info_change_notify+0x111/0x190 Modules linked in: uvcvideo
 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core
rndis_host cdc_ether usbnet mii tp_smapi(O) thinkpad_ec(O) ohci_hcd vboxpci(O)
 vboxnetadp(O) vboxnetflt(O) v boxdrv(O) x86_pkg_temp_thermal kvm_intel kvm
 irqbypass iwldvm iwlwifi ehci_pci ehci_hcd tpm_tis tpm_tis_core tpm CPU: 0
 PID: 2193 Comm: iw Tainted: G           O    4.12.12-gentoo #2 task:
 ffff880186fd5cc0 task.stack: ffffc90001b54000 RIP:
 0010:ieee80211_bss_info_change_notify+0x111/0x190 RSP: 0018:ffffc90001b57a10
 EFLAGS: 00010246 RAX: 0000000000000006 RBX: ffff8801052ce840 RCX:
 0000000000000064 RDX: 00000000fffffffc RSI: 0000000000040000 RDI:
 ffff8801052ce840 RBP: ffffc90001b57a38 R08: 0000000000000062 R09:
 0000000000000000 R10: ffff8802144b5000 R11: ffff880049dc4614 R12:
 0000000000040000 R13: 0000000000000064 R14: ffff8802105f0760 R15:
 ffffc90001b57b48 FS:  00007f92644b4580(0000) GS:ffff88021e200000(0000)
 knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f9263c109f0 CR3: 00000001df850000 CR4: 00000000000406f0
 Call Trace:
  ieee80211_recalc_txpower+0x33/0x40
  ieee80211_set_tx_power+0x40/0x180
  nl80211_set_wiphy+0x32e/0x950

Reported-by: Peter Große <pegro@friiks.de>
Signed-off-by: Peter Große <pegro@friiks.de>

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2018-04-12 12:32:15 +02:00
arch ARM: dts: ls1021a: add "fsl,ls1021a-esdhc" compatible string to esdhc node 2018-04-12 12:32:11 +02:00
block Fix slab name "biovec-(1<<(21-12))" 2018-04-08 14:26:33 +02:00
certs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crypto crypto: ahash - Fix early termination in hash walk 2018-04-08 14:26:31 +02:00
Documentation serial: 8250: Add Nuvoton NPCM UART 2018-04-08 14:26:30 +02:00
drivers ACPI: EC: Fix debugfs_create_*() usage 2018-04-12 12:32:15 +02:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs VFS: close race between getcwd() and d_move() 2018-04-12 12:32:13 +02:00
include clk: divider: fix incorrect usage of container_of 2018-04-12 12:32:13 +02:00
init kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2018-02-22 15:42:23 +01:00
ipc ipc/shm.c: add split function to shm_vm_ops 2018-04-08 14:26:27 +02:00
kernel perf/hwbp: Simplify the perf-hwbp code, fix documentation 2018-04-08 14:26:27 +02:00
lib rhashtable: Fix rhlist duplicates insertion 2018-03-31 18:10:40 +02:00
mm percpu: add __GFP_NORETRY semantics to the percpu balancing path 2018-04-08 14:26:29 +02:00
net mac80211: Fix setting TX power on monitor interfaces 2018-04-12 12:32:15 +02:00
samples samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 2017-12-20 10:10:31 +01:00
scripts kbuild: fix linker feature test macros when cross compiling with Clang 2018-03-24 11:01:29 +01:00
security /dev/mem: Add bounce buffer for copy-out 2018-03-24 11:01:24 +01:00
sound ASoC: Intel: cht_bsw_rt5645: Analog Mic support 2018-04-12 12:32:14 +02:00
tools selftests/net: fix bugs in address and port initialization 2018-04-12 12:32:13 +02:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: arm/arm64: vgic: Don't populate multiple LRs with the same vintid 2018-03-21 12:06:43 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Add hch to .get_maintainer.ignore 2015-08-21 14:30:10 -07:00
.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 [PATCH] update FSF address in COPYING 2005-09-10 10:06:29 -07:00
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 dt-bindings: Document mti,mips-cpc binding 2018-03-15 10:54:35 +01:00
Makefile Linux 4.14.33 2018-04-08 14:26:34 +02:00
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.