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Message-ID: <19473132ad2e3bab492c001402e0b08886a5493c.camel@sipsolutions.net>
Subject: Re: [PATCH v4 5/6] mac80211: use ieee802_11_parse_elems() to find
 ies instead of ieee80211_bss_get_ie()
From:   Johannes Berg <johannes@sipsolutions.net>
To:     Wen Gong <wgong@codeaurora.org>, ath11k@lists.infradead.org
Cc:     linux-wireless@vger.kernel.org
Date:   Fri, 24 Sep 2021 12:47:53 +0200
In-Reply-To: <b02735cc844c9ba2222d23a7e6ad112a82a36891.camel@sipsolutions.net>
References: <20210924100052.32029-1-wgong@codeaurora.org>
         <20210924100052.32029-6-wgong@codeaurora.org>
         <b02735cc844c9ba2222d23a7e6ad112a82a36891.camel@sipsolutions.net>
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On Fri, 2021-09-24 at 12:13 +0200, Johannes Berg wrote:
> Taking a brief look before lunch,
> 
> >  	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && !is_6ghz) {
> >  		const u8 *ht_oper_ie, *ht_cap_ie;
> >  
> > 
> > 
> > 
> > -		ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION);
> > +		ht_oper_ie = elems->ht_operation ?
> > +			((const u8 *)elems->ht_operation) - 2 :
> > +			NULL;
> >  		if (ht_oper_ie && ht_oper_ie[1] >= sizeof(*ht_oper))
> >  			ht_oper = (void *)(ht_oper_ie + 2);
> 
> Can't we drop these checks, and simply do
> 
> ht_oper = elems->ht_operation?

I checked, yes, we can do that. Since I just did it anyway, no need to
resend.

johannes