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Re: [PATCH] mac80211: process S1G Operation element before HT

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On Tue, 2020-09-29 at 11:19 -0700, Thomas Pedersen wrote:
> The sband->ht_cap was being processed before S1G Operation
> element.  Since the HT capability element should not be
> present on the S1G band, avoid processing potential
> garbage by moving the call to
> ieee80211_apply_htcap_overrides() to after the S1G block.

Ah, heh. I hadn't even realized that.

What I meant though was something else: we have

        if (s1g_oper && sband->band == NL80211_BAND_S1GHZ) {
		...
		goto out;
	}

	// process ht cap overrides (after this patch)

	// check HT oper

	// check VHT oper

	// ...

So given that first condition, if you actually have an S1G AP *without*
S1G operation element (for some reason), you'd start processing HT, VHT,
and whatever else capabilities, sending us down a misleading and likely
very confusing path, which seems like it should be avoided?

johannes




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