From b178c1a23c5f53bdaad4f915e01d674169206c28 Mon Sep 17 00:00:00 2001 From: Zong-Zhe Yang Date: Sun, 11 May 2025 11:52:17 +0800 Subject: [PATCH] wifi: rtw89: mcc: avoid redundant recalculations if no chance to improve MCC will track the changes of beacon offset, and trigger a recalculation when the difference is larger than the tolerance. It means that a better pattern is expected after recalculating. However, in the cases which get a worse beacon offset, there is no chance to improve the pattern even if recalculating. So, bypass them. Signed-off-by: Zong-Zhe Yang Signed-off-by: Ping-Ke Shih Link: https://patch.msgid.link/20250511035217.10410-7-pkshih@realtek.com --- drivers/net/wireless/realtek/rtw89/chan.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw89/chan.c b/drivers/net/wireless/realtek/rtw89/chan.c index b7593c7465b9..806f42429a29 100644 --- a/drivers/net/wireless/realtek/rtw89/chan.c +++ b/drivers/net/wireless/realtek/rtw89/chan.c @@ -2367,7 +2367,7 @@ static void rtw89_mcc_track(struct rtw89_dev *rtwdev) struct rtw89_mcc_info *mcc = &rtwdev->mcc; struct rtw89_mcc_config *config = &mcc->config; struct rtw89_mcc_pattern *pattern = &config->pattern; - s16 tolerance; + u16 tolerance; u16 bcn_ofst; u16 diff; @@ -2375,18 +2375,25 @@ static void rtw89_mcc_track(struct rtw89_dev *rtwdev) return; bcn_ofst = rtw89_mcc_get_bcn_ofst(rtwdev); + if (bcn_ofst == config->beacon_offset) + return; + if (bcn_ofst > config->beacon_offset) { diff = bcn_ofst - config->beacon_offset; if (pattern->tob_aux < 0) tolerance = -pattern->tob_aux; - else + else if (pattern->toa_aux > 0) tolerance = pattern->toa_aux; + else + return; /* no chance to improve */ } else { diff = config->beacon_offset - bcn_ofst; if (pattern->toa_aux < 0) tolerance = -pattern->toa_aux; - else + else if (pattern->tob_aux > 0) tolerance = pattern->tob_aux; + else + return; /* no chance to improve */ } if (diff <= tolerance) -- 2.50.1