From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Date: Thu, 8 Dec 2022 21:34:02 +0200
Subject: [PATCH] wifi: rtl8xxxu: Fix assignment to bit field
priv->cck_agc_report_type
References: bsc#1012628
Patch-mainline: 6.2.3
Git-commit: 639c26faf9b15922bc620af341545d6c5d6aab2d
[ Upstream commit 639c26faf9b15922bc620af341545d6c5d6aab2d ]
Just because priv->cck_agc_report_type is only one bit doesn't mean
it works like a bool. The value assigned to it loses all bits except
bit 0, so only assign 0 or 1 to it.
This affects the RTL8192EU, but rtl8xxxu already can't connect to any
networks with this chip, so it probably didn't bother anyone.
Fixes: 2ad2a813b803 ("wifi: rtl8xxxu: Fix the CCK RSSI calculation")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/7bb4858c-5cef-9cae-5e08-7e8444e8ba89@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 3ed43540..799b03ec 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4208,10 +4208,12 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw)
* should be equal or CCK RSSI report may be incorrect
*/
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XA_HSSI_PARM2);
- priv->cck_agc_report_type = val32 & FPGA0_HSSI_PARM2_CCK_HIGH_PWR;
+ priv->cck_agc_report_type =
+ u32_get_bits(val32, FPGA0_HSSI_PARM2_CCK_HIGH_PWR);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XB_HSSI_PARM2);
- if (priv->cck_agc_report_type != (bool)(val32 & FPGA0_HSSI_PARM2_CCK_HIGH_PWR)) {
+ if (priv->cck_agc_report_type !=
+ u32_get_bits(val32, FPGA0_HSSI_PARM2_CCK_HIGH_PWR)) {
if (priv->cck_agc_report_type)
val32 |= FPGA0_HSSI_PARM2_CCK_HIGH_PWR;
else
--
2.35.3