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iwlwifi: mvm: don't set K1/K2 for AES-CMAC 

According to firmware engineers, the firmware has never required
these fields and the values have always been calculated, they were
just leftovers from a previous implementation.

Therefore remove the unnecessary calculation.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2015-06-19 10:20:10 +02:00
parent 36890997b0
commit 2001a130d4
2 changed files with 2 additions and 4 deletions
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4
drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
View File

@ -366,8 +366,8 @@ struct iwl_mvm_rm_sta_cmd {
* ( MGMT_MCAST_KEY = 0x1f )
* @ctrl_flags: %iwl_sta_key_flag
* @IGTK:
* @K1: IGTK master key
* @K2: IGTK sub key
* @K1: unused
* @K2: unused
* @sta_id: station ID that support IGTK
* @key_id:
* @receive_seq_cnt: initial RSC/PN needed for replay check

2
drivers/net/wireless/iwlwifi/mvm/sta.c
View File

@ -1277,8 +1277,6 @@ static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm,
const u8 *pn;
memcpy(igtk_cmd.IGTK, keyconf->key, keyconf->keylen);
ieee80211_aes_cmac_calculate_k1_k2(keyconf,
igtk_cmd.K1, igtk_cmd.K2);
ieee80211_get_key_rx_seq(keyconf, 0, &seq);
pn = seq.aes_cmac.pn;
igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) |