From: Zong-Zhe Yang Date: Tue, 10 Mar 2026 08:01:43 +0000 (+0800) Subject: wifi: rtw89: replace RF mutex with wiphy lock assertion X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=829b89c2b08ff376eb4c5edc66363ea09ba99138;p=thirdparty%2Fkernel%2Flinux.git wifi: rtw89: replace RF mutex with wiphy lock assertion Now, stack has introduced wiphy lock. And, the normal paths calling RF read/write should be under wiphy lock. So, replace RF mutex with wiphy lock assertion. Besides, in dbgfs paths, add the corresponding lock option. Signed-off-by: Zong-Zhe Yang Signed-off-by: Ping-Ke Shih Link: https://patch.msgid.link/20260310080146.31113-11-pkshih@realtek.com --- diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index 6ab99a3577f32..18dbf3664f0a1 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -6147,7 +6147,6 @@ int rtw89_core_init(struct rtw89_dev *rtwdev) return -ENOMEM; spin_lock_init(&rtwdev->ba_lock); spin_lock_init(&rtwdev->rpwm_lock); - mutex_init(&rtwdev->rf_mutex); rtwdev->total_sta_assoc = 0; rtw89_init_wait(&rtwdev->mcc.wait); @@ -6206,7 +6205,6 @@ void rtw89_core_deinit(struct rtw89_dev *rtwdev) __rtw89_fw_free_all_early_h2c(rtwdev); destroy_workqueue(rtwdev->txq_wq); - mutex_destroy(&rtwdev->rf_mutex); } EXPORT_SYMBOL(rtw89_core_deinit); diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index 01573150ab3c3..ce04ecaa3a5e5 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -6182,8 +6182,6 @@ struct rtw89_dev { refcount_t refcount_ap_info; struct list_head rtwvifs_list; - /* used to protect rf read write */ - struct mutex rf_mutex; struct workqueue_struct *txq_wq; struct work_struct txq_work; struct delayed_work txq_reinvoke_work; @@ -6808,22 +6806,18 @@ static inline u32 rtw89_read_rf(struct rtw89_dev *rtwdev, enum rtw89_rf_path rf_path, u32 addr, u32 mask) { - u32 val; - - mutex_lock(&rtwdev->rf_mutex); - val = rtwdev->chip->ops->read_rf(rtwdev, rf_path, addr, mask); - mutex_unlock(&rtwdev->rf_mutex); + lockdep_assert_wiphy(rtwdev->hw->wiphy); - return val; + return rtwdev->chip->ops->read_rf(rtwdev, rf_path, addr, mask); } static inline void rtw89_write_rf(struct rtw89_dev *rtwdev, enum rtw89_rf_path rf_path, u32 addr, u32 mask, u32 data) { - mutex_lock(&rtwdev->rf_mutex); + lockdep_assert_wiphy(rtwdev->hw->wiphy); + rtwdev->chip->ops->write_rf(rtwdev, rf_path, addr, mask, data); - mutex_unlock(&rtwdev->rf_mutex); } static inline u32 rtw89_read32_pci_cfg(struct rtw89_dev *rtwdev, u32 addr) diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c index aee0f25e036a2..d461ffc6dc9e8 100644 --- a/drivers/net/wireless/realtek/rtw89/debug.c +++ b/drivers/net/wireless/realtek/rtw89/debug.c @@ -4859,9 +4859,9 @@ rtw89_debug_priv_beacon_info_get(struct rtw89_dev *rtwdev, static const struct rtw89_debugfs rtw89_debugfs_templ = { .read_reg = rtw89_debug_priv_select_and_get(read_reg), .write_reg = rtw89_debug_priv_set(write_reg), - .read_rf = rtw89_debug_priv_select_and_get(read_rf), - .write_rf = rtw89_debug_priv_set(write_rf), - .rf_reg_dump = rtw89_debug_priv_get(rf_reg_dump, RSIZE_8K), + .read_rf = rtw89_debug_priv_select_and_get(read_rf, RLOCK), + .write_rf = rtw89_debug_priv_set(write_rf, WLOCK), + .rf_reg_dump = rtw89_debug_priv_get(rf_reg_dump, RSIZE_8K, RLOCK), .txpwr_table = rtw89_debug_priv_get(txpwr_table, RSIZE_20K, RLOCK), .mac_reg_dump = rtw89_debug_priv_select_and_get(mac_reg_dump, RSIZE_128K), .mac_mem_dump = rtw89_debug_priv_select_and_get(mac_mem_dump, RSIZE_16K, RLOCK),