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Re: [PATCH 16/16] mac80211: synchronously reserve TID per station

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On Wed, Nov 19, 2014 at 1:41 PM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Wed, 2014-11-19 at 13:40 +0200, Arik Nemtsov wrote:
>> On Wed, Nov 19, 2014 at 1:22 PM, Johannes Berg
>> <johannes@xxxxxxxxxxxxxxxx> wrote:
>> > On Sun, 2014-11-09 at 18:50 +0200, Arik Nemtsov wrote:
>> >
>> >> +     if (WARN_ON(tid >= IEEE80211_NUM_TIDS))
>> >> +             return -EINVAL;
>> >
>> > That validates < 16
>> >
>> >> +     queues = BIT(sdata->vif.hw_queue[ieee802_1d_to_ac[tid]]);
>> >
>> > but that's only valid for < 8, causing a smatch warning.
>>
>> It's a valid warning. It should be tid & 7 here. I'll send a fix.
>
> yes, but I think &7 is wrong too - TIDs (really TSIDs) 8-15 don't have a
> static AC mapping, and we don't support them anyway. I think the sanity
> check should just make sure it's < 8.

yea you're right. was just writing this :)

Arik
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