From: Wen Gong <wgong@codeaurora.org>
Date: Mon, 18 Feb 2019 06:14:31 +0000 (+0800)
Subject: ath10k: remove the calibration data fetch for sdio
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6566abea0b97ec7cc94538e713d3500219be02c5;p=openwrt%2Fstaging%2Fblogic.git

ath10k: remove the calibration data fetch for sdio

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@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 1b8903280d42..32d967a31c65 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1252,6 +1252,9 @@ 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));