> From: Cedric Izoard <Cedric.Izoard@xxxxxxxxxxxx>
> To: linux-wireless@xxxxxxxxxxxxxxx <linux-wireless@xxxxxxxxxxxxxxx>
> Cc: johannes@xxxxxxxxxxxxxxxx <johannes@xxxxxxxxxxxxxxxx>
> Subject: [PATCH] mac80211: Get IV len from key conf and not cipher
> scheme
> Date: Tue, 10 Mar 2015 08:52:23 +0000
>
> Do not always dereference sta to get cipher scheme as it may be null
> for broadcast messages.
> Instead get IV length from key configuration which has been
> initialized with cipher scheme.
>
Cedric, in general a cipher scheme was about to be used with a station holding ucast and mcast/bcast keys, so, my question is about the following line:
> + res = ieee80211_crypto_cs_encrypt(tx, skb);
What is a point of calling this function when tx->key->sta or tx->key->sta->cipher_scheme is NULL? In which scenario?
Thanks,
Max
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