>Just do it in the supplicant - that has full control over what's going on with a given device. >Trying to have the kernel manage multiple things that may or may not be exclusive and are all done in userspace is going to be a futile exercise. Please note that the scans that are mentioned by me in this context are not triggered by the supplicant, rather the host driver would initiate them. The driver / firmware would do such scans for a better roam performance. I would say, some handshake between the supplicant and the driver would be needed for a better understanding on the operations. Please have your say. Regards, Sunil -----Original Message----- From: Johannes Berg [mailto:johannes@xxxxxxxxxxxxxxxx] Sent: Thursday, October 31, 2013 8:55 PM To: Undekari, Sunil Dutt Cc: linux-wireless@xxxxxxxxxxxxxxx; j@xxxxx Subject: Re: [PATCH] cfg80211: Introduce critical protocol indication for p2p connection. On Thu, 2013-10-31 at 15:22 +0000, Undekari, Sunil Dutt wrote: > > That's not what the critical protocol stuff was designed for, so no. > I would consider the P2P connection phase (P2P+WPS+WPA) to be critical > and any off channel operations (scan) triggered by the host driver > would result in the delayed / failed P2P connection attempt. > I suppose there should be an indication to the host driver w.r.t p2p > connection attempt so that any off load operations on any other > interface sharing the same radio would be avoided by the driver. > Since there is already an existing interface through the critical > protocol indication, I thought of extending it to also include a P2P > protocol/connection. This new proto id would be an indication to the > drivers to allow the scan on the current interface and avoid any scans > on another considering the fact that a p2p connection requires a scan. > Do you propose an alternative (a new interface?) to achieve the same? Just do it in the supplicant - that has full control over what's going on with a given device. Trying to have the kernel manage multiple things that may or may not be exclusive and are all done in userspace is going to be a futile exercise. johannes ��.n��������+%������w��{.n�����{���zW����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
