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02a6144996
The following warning is triggered every time an unestablished mesh peer
gets dumped. Checks if a peer link is established before retrieving the
airtime link metric.
[ 9563.022567] WARNING: CPU: 0 PID: 6287 at net/mac80211/mesh_hwmp.c:345
airtime_link_metric_get+0xa2/0xb0 [mac80211]
[ 9563.022697] Hardware name: PC Engines apu2/apu2, BIOS v4.10.0.3
[ 9563.022756] RIP: 0010:airtime_link_metric_get+0xa2/0xb0 [mac80211]
[ 9563.022838] Call Trace:
[ 9563.022897] sta_set_sinfo+0x936/0xa10 [mac80211]
[ 9563.022964] ieee80211_dump_station+0x6d/0x90 [mac80211]
[ 9563.023062] nl80211_dump_station+0x154/0x2a0 [cfg80211]
[ 9563.023120] netlink_dump+0x17b/0x370
[ 9563.023130] netlink_recvmsg+0x2a4/0x480
[ 9563.023140] ____sys_recvmsg+0xa6/0x160
[ 9563.023154] ___sys_recvmsg+0x93/0xe0
[ 9563.023169] __sys_recvmsg+0x7e/0xd0
[ 9563.023210] do_syscall_64+0x4e/0x140
[ 9563.023217] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20191203180644.70653-1-markus.theil@tu-ilmenau.de
[rewrite commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.