git: 672ab3812bc6 - stable/15 - LinuxKPI: 802.11: save the default channel

The branch stable/15 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=672ab3812bc66d4e8cc5f44f5444749bf20749df

commit 672ab3812bc66d4e8cc5f44f5444749bf20749df
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2026-03-10 20:02:43 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2026-04-22 20:57:04 +0000

    LinuxKPI: 802.11: save the default channel
    
    Add a field to struct lkpi_hw to save the default channel for later
    reuse.
    
    Sponsored by:   The FreeBSD Foundation
    
    (cherry picked from commit ced6909dd69b8476121dc291e01fa56ae14520e5)
---
 sys/compat/linuxkpi/common/src/linux_80211.c | 2 ++
 sys/compat/linuxkpi/common/src/linux_80211.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/sys/compat/linuxkpi/common/src/linux_80211.c b/sys/compat/linuxkpi/common/src/linux_80211.c
index 8bb5bd4201ef..92eccefca078 100644
--- a/sys/compat/linuxkpi/common/src/linux_80211.c
+++ b/sys/compat/linuxkpi/common/src/linux_80211.c
@@ -3963,6 +3963,7 @@ lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ],
 	lvif->lvif_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event,
 	    lkpi_vif_iflladdr, vif, EVENTHANDLER_PRI_ANY);
 	vif->bss_conf.link_id = 0;	/* Non-MLO operation. */
+	vif->bss_conf.chanreq.oper.chan = lhw->dflt_chandef.chan;
 	vif->bss_conf.chanreq.oper.width = NL80211_CHAN_WIDTH_20_NOHT;
 	vif->bss_conf.use_short_preamble = false;	/* vap->iv_flags IEEE80211_F_SHPREAMBLE */
 	vif->bss_conf.use_short_slot = false;		/* vap->iv_flags IEEE80211_F_SHSLOT */
@@ -6832,6 +6833,7 @@ linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw)
 			    (ic->ic_flags_ht & IEEE80211_FHT_HT) ? NL80211_CHAN_HT20 :
 #endif
 			    NL80211_CHAN_NO_HT);
+			lhw->dflt_chandef = hw->conf.chandef;
 			break;
 		}
 	}
diff --git a/sys/compat/linuxkpi/common/src/linux_80211.h b/sys/compat/linuxkpi/common/src/linux_80211.h
index 8ae5c3d13d2d..a2945498e8df 100644
--- a/sys/compat/linuxkpi/common/src/linux_80211.h
+++ b/sys/compat/linuxkpi/common/src/linux_80211.h
@@ -254,6 +254,8 @@ struct lkpi_hw {	/* name it mac80211_sc? */
 	unsigned int			mc_flags;
 	struct sx			mc_sx;
 
+	struct cfg80211_chan_def	dflt_chandef;
+
 	struct mtx			txq_mtx;
 	uint32_t			txq_generation[IEEE80211_NUM_ACS];
 	spinlock_t			txq_scheduled_lock[IEEE80211_NUM_ACS];