possible bug in sta_info.c : ieee80211_send_null_response

Marco Porsch <marco.porsch@xxxxxxxxxxxxxxxxxxx> · Mon, 16 Jan 2012 13:15:47 +0100

Hi,

in this function there is some effort to set the EOSP flag in QoS Null 
frames:

if (reason == IEEE80211_FRAME_RELEASE_UAPSD)
	nullfunc->qos_ctrl |=
		cpu_to_le16(IEEE80211_QOS_CTL_EOSP);

ieee80211_xmit is called at the end of the function. Which then calls 
ieee80211_set_qos_hdr.

But ieee80211_set_qos_hdr will completely overwrite the QoS header again.
So, what is wrong here?

Regards
Marco

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