6.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx>
commit 819bda58e77bb67974f94dc1aa11b0556b6f6889 upstream.
Since commit 0a44dfc07074 ("wifi: mac80211: simplify non-chanctx
drivers") ieee80211_hw_config() is no longer called with changed = ~0.
rtlwifi relied on ~0 in order to ignore the default retry limits of
4/7, preferring 48/48 in station mode and 7/7 in AP/IBSS.
RTL8192DU has a lot of packet loss with the default limits from
mac80211. Fix it by ignoring IEEE80211_CONF_CHANGE_RETRY_LIMITS
completely, because it's the simplest solution.
Link: https://lore.kernel.org/linux-wireless/cedd13d7691f4692b2a2fa5a24d44a22@xxxxxxxxxxx/
Cc: stable@xxxxxxxxxxxxxxx # 6.9.x
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx>
Acked-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://msgid.link/1fabb8e4-adf3-47ae-8462-8aea963bc2a5@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtlwifi/core.c | 15 ---------------
1 file changed, 15 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 2e60a6991ca1..42b7db12b1bd 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -633,21 +633,6 @@ static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
}
}
- if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
- rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
- "IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
- hw->conf.long_frame_max_tx_count);
- /* brought up everything changes (changed == ~0) indicates first
- * open, so use our default value instead of that of wiphy.
- */
- if (changed != ~0) {
- mac->retry_long = hw->conf.long_frame_max_tx_count;
- mac->retry_short = hw->conf.long_frame_max_tx_count;
- rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
- (u8 *)(&hw->conf.long_frame_max_tx_count));
- }
- }
-
if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
!rtlpriv->proximity.proxim_on) {
struct ieee80211_channel *channel = hw->conf.chandef.chan;
--
2.45.2
