mac80211: use CMAC_PN_LEN

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

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index d27e61a..0f18ef5 100644 (file)
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -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.