Ath9k CTS/RTS Issue?

Hey all, I have CTS/RTS parameters set. I noticed this in the log the other day...I realized that the tx.c relates to CTS/RTS and other STA TX parameters. Is this anything to worry about?

I'm running OpenWRT 17.01.4.

[46425.241780] ------------[ cut here ]------------
[46425.246552] WARNING: CPU: 0 PID: 3 at compat-wireless-2017-01-31/net/mac80211/tx.c:4003 0x876a9f64 [mac80211@87680000+0x607a0]()
[46425.258298] Modules linked in: ifb ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_recent xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY wireguard slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache iptable_raw iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt compat act_connmark nf_conntrack act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress xt_set ip_set_list_set ip_set_hash_netiface ip_set_hash_netport ip_set_hash_netnet ip_set_hash_net ip_set_hash_netportnet ip_set_hash_mac ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_hash_ipport ip_set_hash_ipmark ip_set_hash_ip ip_set_bitmap_port ip_set_bitmap_ipmac ip_set_bitmap_ip ip_set nfnetlink ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables ip6_udp_tunnel udp_tunnel sit ipip ip6_tunnel tunnel6 tunnel4 ip_tunnel ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common [last unloaded: ifb]
[46425.383378] CPU: 0 PID: 3 Comm: ksoftirqd/0 Not tainted 4.4.92 #0
[46425.389570] Stack : 803875b4 00000000 00000001 803e0000 00000000 00000000 00000000 00000000
[46425.389570] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[46425.389570] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[46425.389570] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[46425.389570] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[46425.389570] 	  ...
[46425.425933] Call Trace:[<80071a8c>] 0x80071a8c
[46425.430488] [<80071a8c>] 0x80071a8c
[46425.434045] [<80081888>] 0x80081888
[46425.437597] [<876a9f64>] 0x876a9f64 [mac80211@87680000+0x607a0]
[46425.443615] [<80081940>] 0x80081940
[46425.447179] [<802608c0>] 0x802608c0
[46425.450723] [<876a9f64>] 0x876a9f64 [mac80211@87680000+0x607a0]
[46425.456753] [<80349108>] 0x80349108
[46425.460298] [<876aa1d0>] 0x876aa1d0 [mac80211@87680000+0x607a0]
[46425.466382] [<876aa68c>] 0x876aa68c [mac80211@87680000+0x607a0]
[46425.472383] [<8025da8c>] 0x8025da8c
[46425.475973] [<87760b84>] 0x87760b84 [ath9k@87760000+0x16650]
[46425.481711] [<8026c458>] 0x8026c458
[46425.485281] [<80084448>] 0x80084448
[46425.488823] [<80083e04>] 0x80083e04
[46425.492388] [<80083e74>] 0x80083e74
[46425.495944] [<8009a8dc>] 0x8009a8dc
[46425.499487] [<8009aa34>] 0x8009aa34
[46425.503034] [<8009a8dc>] 0x8009a8dc
[46425.506583] [<80067160>] 0x80067160
[46425.510141] [<8009a8dc>] 0x8009a8dc
[46425.513692] [<80098464>] 0x80098464
[46425.517259] [<8009838c>] 0x8009838c
[46425.520812] [<80060878>] 0x80060878
[46425.524375] 
[46425.525886] ---[ end trace 4cfadd6edfedc2de ]---