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wifi: rtw88: add mutex when set regulatory and get Tx power table

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Applying regulatory and getting Tx power table will access hal
data, it should hold rtwdev::mutex to avoid hal data changed during
setting flow.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220809084107.38137-3-pkshih@realtek.com
This commit is contained in:
Chih-Kang Chang 2022-08-09 16:41:02 +08:00 committed by Kalle Valo
parent 9a72db4133
commit 685b474b7d
2 changed files with 9 additions and 4 deletions
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11
drivers/net/wireless/realtek/rtw88/debug.c
View file

@ -621,11 +621,13 @@ static int rtw_debugfs_get_tx_pwr_tbl(struct seq_file *m, void *v)
struct rtw_debugfs_priv *debugfs_priv = m->private;
struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
struct rtw_hal *hal = &rtwdev->hal;
u8 path, rate;
u8 path, rate, bw, ch, regd;
struct rtw_power_params pwr_param = {0};
u8 bw = hal->current_band_width;
u8 ch = hal->current_channel;
u8 regd = rtw_regd_get(rtwdev);
mutex_lock(&rtwdev->mutex);
bw = hal->current_band_width;
ch = hal->current_channel;
regd = rtw_regd_get(rtwdev);
seq_printf(m, "channel: %u\n", ch);
seq_printf(m, "bandwidth: %u\n", bw);
@ -667,6 +669,7 @@ static int rtw_debugfs_get_tx_pwr_tbl(struct seq_file *m, void *v)
}
mutex_unlock(&hal->tx_power_mutex);
mutex_unlock(&rtwdev->mutex);
return 0;
}

2
drivers/net/wireless/realtek/rtw88/regd.c
View file

@ -479,6 +479,7 @@ void rtw_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request)
rtw_dbg(rtwdev, RTW_DBG_REGD, "regd state: %d -> %d\n",
rtwdev->regd.state, next_regd.state);
mutex_lock(&rtwdev->mutex);
rtwdev->regd = next_regd;
rtw_dbg_regd_dump(rtwdev, "get alpha2 %c%c from initiator %d: ",
request->alpha2[0],
@ -487,6 +488,7 @@ void rtw_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request)
rtw_phy_adaptivity_set_mode(rtwdev);
rtw_phy_set_tx_power_level(rtwdev, hal->current_channel);
mutex_unlock(&rtwdev->mutex);
}
u8 rtw_regd_get(struct rtw_dev *rtwdev)