git: 25af78d0bdcf - main - ath_rate_sample: correct the "best rate" calculation

The branch main has been updated by adrian:

URL: https://cgit.FreeBSD.org/src/commit/?id=25af78d0bdcfda995de27afc602fd86abdbef346

commit 25af78d0bdcfda995de27afc602fd86abdbef346
Author:     Adrian Chadd <adrian@FreeBSD.org>
AuthorDate: 2024-12-08 17:09:55 +0000
Commit:     Adrian Chadd <adrian@FreeBSD.org>
CommitDate: 2024-12-18 23:46:52 +0000

    ath_rate_sample: correct the "best rate" calculation
    
    This should be a *9 rather than a *10 so higher stream MCS rates
    (eg comparing MCS0 and MCS8) that have slightly longer average transmit
    times (but better burst transmit times) get considered.
    
    This mirrors what the later code does when considering if a rate
    change is needed.
    
    Locally tested:
    
    * AR9280, AP mode
    * AR9380, AP mode
    
    Differential Revision:  https://reviews.freebsd.org/D47988
    Reviewed by:    imp
---
 sys/dev/ath/ath_rate/sample/sample.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/dev/ath/ath_rate/sample/sample.c b/sys/dev/ath/ath_rate/sample/sample.c
index 58eea8f64993..58df9ad1c1cd 100644
--- a/sys/dev/ath/ath_rate/sample/sample.c
+++ b/sys/dev/ath/ath_rate/sample/sample.c
@@ -397,7 +397,8 @@ pick_best_rate(struct ath_node *an, const HAL_RATE_TABLE *rt,
 		 * be abstracted out and properly handled.
 		 */
 		if (an->an_node.ni_flags & IEEE80211_NODE_HT) {
-			if (best_rate_tt == 0 || ((tt * 10) <= (best_rate_tt * 10))) {
+			if (best_rate_tt == 0 ||
+			    ((tt * 9) <= (best_rate_tt * 10))) {
 				best_rate_tt = tt;
 				best_rate_rix = rix;
 				best_rate_pct = pct;