Question on stopping ath dmesg output spam

First off thank you to all of you for your work in letting me run linux on my system! It really is greatly appreciated! It has come a long ways from the early 90's due to everyone sharing their skills and contributing. Sadly the below is driving me nuts for some reason and I am at a loss on how to remedy it myself so I seek your wisdom.

I really would like to find a way to stop the repeated messages from my wireless device in dmesg.
It works fine and I have never had an issue with it before. I have updated to kernel ver 4.15-rc7 and could not find anything in configuring to stop this behavior.
It also does this with the latest 4.14.0-0.bpo.2-amd64 kernel from Debian so I don't believe it is something I have or havn't done but I have been wrong more than once when confident I was right.

Most of things I have found refer to getting the Qualcomm Atheros AR9485 Wireless Network Adapter working on a system and do not fix the repeated spamming of this message.

Is there something I need to fix or if this is normal behavior is there a way I can send this to the black hole (/dev/null) it belongs in?

Thank you for any insight,

Walt

uname -a
Linux debian-laptop 4.15.0-rc7-feas-00005-g4d01e46404b8-dirty #3 SMP PREEMPT Sun Jan 7 19:31:26 EST 2018 x86_64 GNU/Linux

wlan0: authenticate with 14:ab:f0:68:ae:e0
wlan0: send auth to 14:ab:f0:68:ae:e0 (try 1/3)
wlan0: authenticated
wlan0: associate with 14:ab:f0:68:ae:e0 (try 1/3)
wlan0: RX AssocResp from 14:ab:f0:68:ae:e0 (capab=0x411 status=0 aid=1)
wlan0: associated
ath: EEPROM regdomain: 0x8348
ath: EEPROM indicates we should expect a country code
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a
ath: regdomain 0x8348 dynamically updated by country IE

sudo iw reg get
global
country US: DFS-FCC

	(2402 - 2472 @ 40), (N/A, 30), (N/A)
	(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
	(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
	(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
	(5735 - 5835 @ 80), (N/A, 30), (N/A)
	(57240 - 63720 @ 2160), (N/A, 40), (N/A)

lspci
02:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)

lsmod | grep ath
ath9k                 114688  0
ath9k_common           20480  1 ath9k
ath9k_hw              479232  2 ath9k,ath9k_common ath                    32768  3 ath9k_hw,ath9k,ath9k_common mac80211              806912  1 ath9k
cfg80211              737280  4 mac80211,ath9k,ath,ath9k_common

sudo rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no

lsmod | grep acer
acer_wmi               24576  0
sparse_keymap          16384  1 acer_wmi
rfkill                 28672  5 acer_wmi,cfg80211 video                  45056  2 acer_wmi,i915 wmi                    28672  3 wmi_bmof,acer_wmi,mxm_wmi

sudo dmesg | grep ath | egrep "regdomain|Country"
[   28.375725] ath: EEPROM regdomain: 0x65
[   28.375727] ath: Country alpha2 being used: 00
[   95.802335] ath: EEPROM regdomain: 0x8348
[   95.802340] ath: Country alpha2 being used: US
[   95.802342] ath: regdomain 0x8348 dynamically updated by country IE

[ 2487.519115] ath: EEPROM regdomain: 0x8348
[ 2487.519121] ath: Country alpha2 being used: US
[ 2487.519123] ath: regdomain 0x8348 dynamically updated by country IE
[ 3962.490884] ath: EEPROM regdomain: 0x8348
[ 3962.490892] ath: Country alpha2 being used: US
[ 3962.490895] ath: regdomain 0x8348 dynamically updated by country IE
[ 6089.394036] ath: EEPROM regdomain: 0x8348
[ 6089.394043] ath: Country alpha2 being used: US
[ 6089.394045] ath: regdomain 0x8348 dynamically updated by country IE