rtw89: add a warn about beacon_int or dtim_period being 0

While after the changes to LinuxKPI 802.11 we should never be assoc
and not have dtim_period set, we have seen before that this could
happen.  Add a WARN as that will help debugging the following DIV 0.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days

This commit is contained in:

Bjoern A. Zeeb

2026-04-17 02:40:03 +00:00

parent 9f20a4ebf0

commit 99bbfb77e3

1 changed files with 4 additions and 0 deletions

									
										sys/contrib/dev/rtw89/core.c
									
		+4
		
												View File
												
				@@ -2838,6 +2838,10 @@ static void rtw89_core_bcn_track_assoc(struct rtw89_dev *rtwdev,

					dtim = bss_conf->dtim_period;

					rcu_read_unlock();

				#if defined(__FreeBSD__)

					WARN(beacon_int == 0 || dtim == 0, "period %u / beacon_int %u / dtim %u\n",

					    period, beacon_int, dtim);

				#endif

					beacons_in_period = period / beacon_int / dtim;

					bcn_intvl_us = ieee80211_tu_to_usec(beacon_int);