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Re: [RFC v2] cfg80211: Indicate MLO connection info in connect and roam callbacks

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On 6/8/2022 1:01 PM, Johannes Berg wrote:
On Mon, 2022-06-06 at 23:01 +0530, Veerendranath Jakkam wrote:

+	if (cr->status == WLAN_STATUS_SUCCESS) {
+		for_each_valid_link(cr, link) {
+			if (!cr->links[link].bss)
+				break;
+		}
+
+		WARN_ON_ONCE((!cr->valid_links && link != 1) ||
+			     (cr->valid_links &&
+			      link != ARRAY_SIZE(wdev->links)));
+
I will say I'm not super happy with using the link variable after the
loop, that always feels a bit magic to me, especially if the loop is
hidden like that...

But I guess I don't see a lot of alternatives here, other than open-
coding it, or keeping track of "how many BSSes do I have".


Since we need to WARN even if single BSS is not present I think we can use "bss_not_found" flag?


Actually, for the MLO case, is this even valid? link[14] could be set,
so you wouldn't break, ending up with link==15? Or am I confused?
In MLO case the link value will be always 15 after loop completes if bsses are available for all valid links since the check is only for the valid links

so, In above case also when "link==15" the condition fails and WARN will be skipped right.


Anyway, looks good to me.

johannes



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