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wifi: rtw89: mcc: avoid redundant recalculations if no chance to improve

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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 <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250511035217.10410-7-pkshih@realtek.com
This commit is contained in:
Zong-Zhe Yang 2025-05-11 11:52:17 +08:00 committed by Ping-Ke Shih
parent 122b74ac9b
commit b178c1a23c
1 changed files with 10 additions and 3 deletions
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13
drivers/net/wireless/realtek/rtw89/chan.c
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@ -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)