mac80211: use CMAC_PN_LEN

Instead of hardcoding its value (6), use the constant.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-11-14 23:15:11 +01:00
parent f0dea9c73a
commit 0f92732344

View file

@ -372,8 +372,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
key->conf.iv_len = 0;
key->conf.icv_len = sizeof(struct ieee80211_mmie);
if (seq)
for (j = 0; j < 6; j++)
key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1];
for (j = 0; j < CMAC_PN_LEN; j++)
key->u.aes_cmac.rx_pn[j] =
seq[CMAC_PN_LEN - j - 1];
/*
* Initialize AES key state here as an optimization so that
* it does not need to be initialized for every packet.