These commits can fix the problem of wifi not loading properly. At least in my 5.10 kernel environment, the following error message is reported: rtw_8821ce 0000:01:00.0: rfe 6 isn't supported rtw_8821ce 0000:01:00.0: failed to setup chip efuse info rtw_8821ce 0000:01:00.0: failed to setup chip information so I think that 5.10 need to merge these commits. The patch 1/3 and patch 2/3 need to be merged synchronously, otherwise it will cause OE and then kernel exception. Ping-Ke Shih answered[1] a question for a user about an rtl8821ce device that reported RFE 6, which the driver did not support. Ping-Ke suggested a possible fix, but the user never reported back. A second user discovered the above thread and tested the proposed fix. Accordingly, I am pushing this change, even though I am not the author. [1] https://lore.kernel.org/linux-wireless/3f5e2f6eac344316b5dd518ebfea2f95@xxxxxxxxxxx/ Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> Reported-and-tested-by: masterzorag <masterzorag@xxxxxxxxx> Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220107024739.20967-1-Larry.Finger@xxxxxxxxxxxx Signed-off-by: Meng Tang <tangmeng@xxxxxxxxxxxxx> --- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c index 9c8fbc96f536..cbb4c761c5cb 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -1468,6 +1468,7 @@ static const struct rtw_rfe_def rtw8821c_rfe_defs[] = { [0] = RTW_DEF_RFE(8821c, 0, 0), [2] = RTW_DEF_RFE_EXT(8821c, 0, 0, 2), [4] = RTW_DEF_RFE_EXT(8821c, 0, 0, 2), + [6] = RTW_DEF_RFE(8821c, 0, 0), }; static struct rtw_hw_reg rtw8821c_dig[] = { -- 2.20.1
