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missing RX_FLAG_DECRIPTED in ieee80211_rx_status after first reassociation in 802.11R

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Hi all,

	I am not sure if this is the right place to post my question. Please forgive me if not.

	I am experiencing performance issue with 802.11R roaming between two AP with wpa_supplicant ( WPA2 + EAP-TLS).
	When wpa_supplicant leaves the first AP and successfully associates and authenticates with the second one, data frames coming undecrypted from the radio card (RX_FLAG_DECRIPTED flag not set in ieee80211_rx_status) and consumes a lot of CPU time in ieee80211_rx_h_decrypt to decrypt it.

	status->flag at the beginning of ieee80211_rx_h_decrypt :
		0x282 (RX_FLAG_HT | RX_FLAG_MACTIME_MPDU |  RX_FLAG_DECRYPTED) before the first roam
		0x280 (RX_FLAG_HT | RX_FLAG_MACTIME_MPDU) after the first roam
 	
	Is this behavior correct ? if not, can you give me some clue how to work it out ?

	I can provide wpa_supplicant logs if needed.

Wireless driver : ath9k (AR9160)
Compat-Wireless = 2012-09-07 (OpenWRT package) 
WPA_Supplicant  = 20120910 (OpenWRT package)
Linux Kernel : 3.3.8

	Thank in advance.

Best regards,

Cédric DEBARGE


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