Commit 76d592d8 authored Jun 11, 2019 by gaurank kathpalia Committed by nshrivas Jun 12, 2019

qcacld-3.0: Fix Bss scoring algorithm related to channel BW

Scenario: Take a HT40 capable AP and configure it in 20Mhz mode
and then turn on the DUT and scan and connect to a SSID with
multiple BSSIDs present.

Observation: DUT calculates the score of BSSID currently
operating in 20Mhz taking 40Mhz bandwidth which is its max
capablity.

Expectation: DUT should calculate the bandwidth score by
taking 20Mhz current operational bandwidth.

Fix: Check the ht operation IE, and take the AND of the cap
and operation to fill the BSS chan width as 40Mhz.

Change-Id: Ib39714d4d42d5f0484f193e4f4c954d9afecbd99
CRs-Fixed: 2467025

parent c148d55c

core/mac/src/pe/lim/lim_scan_result_utils.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -203,8 +203,15 @@ lim_collect_bss_description(tpAniSirGlobal pMac,
		/* HT capability */
		if (pBPR->HTCaps.present) {
		pBssDescr->ht_caps_present = 1;
		if (pBPR->HTCaps.supportedChannelWidthSet)
		pBssDescr->chan_width = eHT_CHANNEL_WIDTH_40MHZ;
		if (pBPR->HTCaps.supportedChannelWidthSet) {
		if (!pBPR->HTInfo.present) {
		pBssDescr->chan_width =
		eHT_CHANNEL_WIDTH_40MHZ;
		} else if (pBPR->HTInfo.recommendedTxWidthSet) {
		pBssDescr->chan_width =
		eHT_CHANNEL_WIDTH_40MHZ;
		}
		}
		}

		/* VHT Parameters */