From: Lorenzo Bianconi Date: Tue, 18 Nov 2025 09:30:26 +0000 (+0100) Subject: wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work() X-Git-Tag: v6.19-rc1~170^2~33^2~5^2~3 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7545551631fa63101f97974f49ac0b564814f703;p=thirdparty%2Fkernel%2Flinux.git wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work() Grab the mt76 mutex running mt7996_mac_sta_rc_work() since it is required by mt7996_mcu_add_rate_ctrl routine. Fixes: 28d519d0d493a ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl_fixed()") Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20251118-mt7996-rc-work-missing-mtx-v1-1-0739c493a6cb@kernel.org Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c index 8ddb6d69f0da2..2560e2f46e89a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c @@ -2890,6 +2890,8 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) LIST_HEAD(list); u32 changed; + mutex_lock(&dev->mt76.mutex); + spin_lock_bh(&dev->mt76.sta_poll_lock); list_splice_init(&dev->sta_rc_list, &list); @@ -2922,6 +2924,8 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) } spin_unlock_bh(&dev->mt76.sta_poll_lock); + + mutex_unlock(&dev->mt76.mutex); } void mt7996_mac_work(struct work_struct *work)