The calibration data fetch will trigger sdio error, then sdio will become fail untill reboot system. If happens when run ifconfig wlan down, then ifconfig wlan up will fail untill reboot system.Remove it fix the ifconfig wlan issue. Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00005-QCARMSWP-1. Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx> --- drivers/net/wireless/ath/ath10k/debug.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c index 15964b3..c33a51f 100644 --- a/drivers/net/wireless/ath/ath10k/debug.c +++ b/drivers/net/wireless/ath/ath10k/debug.c @@ -1263,6 +1263,9 @@ static int ath10k_debug_cal_data_fetch(struct ath10k *ar) if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN)) return -EINVAL; + if (ar->hw_params.cal_data_len == 0) + return -EOPNOTSUPP; + hi_addr = host_interest_item_address(HI_ITEM(hi_board_data)); ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr)); -- 1.9.1
