linux-kernel - [PATCH] staging: rtl8723bs: fix network selection in rtw

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Message-Id: <20241224085050.61133-1-evepolonium@gmail.com>
Date: Tue, 24 Dec 2024 14:20:47 +0530
From: Atharva Tiwari <evepolonium@...il.com>
To: 
Cc: evepolonium@...il.com,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Meir Elisha <meir6264@...il.com>,
	Philipp Hortmann <philipp.g.hortmann@...il.com>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] staging: rtl8723bs: fix network selection in rtw_mlme.c

this patch fixes the network selection logic to avoid selectiong a network with the same ESSID as the oldest scanned network if it was scanned within the last 500 milisecond

and please give me a value for "new enough" on line 481

Signed-off-by: Atharva Tiwari <evepolonium@...il.com>
---
 drivers/staging/rtl8723bs/core/rtw_mlme.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme.c b/drivers/staging/rtl8723bs/core/rtw_mlme.c
index 5ded183aa08c..06db4f8a7e24 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme.c
@@ -481,7 +481,9 @@ void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *t
 		}
 
 		if (rtw_roam_flags(adapter)) {
-			/* TODO: don't select network in the same ess as oldest if it's new enough*/
+			if (is_same_ess(&pnetwork->network, &oldest->network) &&
+			    time_after(pnetwork->last_scanned, (unsigned long)msecs_to_jiffies(500)))
+				continue;
 		}
 
 		if (!oldest || time_after(oldest->last_scanned, pnetwork->last_scanned))
-- 
2.39.5