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From: Sujith Manoharan <sujith@msujith.org>
To: "Grumbach\, Emmanuel" <emmanuel.grumbach@intel.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
	"linux-wireless\@vger.kernel.org"
	<linux-wireless@vger.kernel.org>
Subject: RE: [PATCH] mac80211: Call mgd_prepare_tx before deauthentication
Date: Wed, 17 Sep 2014 11:31:39 +0530	[thread overview]
Message-ID: <21529.9155.323515.987489@gargle.gargle.HOWL> (raw)
In-Reply-To: <0BA3FCBA62E2DC44AF3030971E174FB31B5230C9@hasmsx107.ger.corp.intel.com>

Grumbach, Emmanuel wrote:
> I see - we also had this problem and because of this, we implemented the flush
> callback that allows to wait until all the queues are empty.  So mac80211 will
> send the deauth, flush and only then it'd remove the VIF. This should allow
> the frame to make it to the air.  Note that API explicitly states that
> mgd_prepare_tx is before assoc only.

flush() doesn't force a context switch, no ?

For example, consider a P2P-GO in freq 2412 and STA in 5180 and both are active.
The current context is GO (2412) and at this time if a local deauth for the STA comes
from userspace, mac80211 sends a deauth frame to the driver and calls flush(),
but the context in the driver is still in channel 2412, so how will this work ?

Sujith

  reply	other threads:[~2014-09-17  6:01 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-17  4:33 [PATCH] mac80211: Call mgd_prepare_tx before deauthentication Sujith Manoharan
2014-09-17  4:54 ` Sujith Manoharan
2014-09-17  5:01   ` Grumbach, Emmanuel
2014-09-17  5:44     ` Sujith Manoharan
2014-09-17  5:50       ` Grumbach, Emmanuel
2014-09-17  6:01         ` Sujith Manoharan [this message]
2014-09-17  6:04           ` Grumbach, Emmanuel
2014-09-17  6:17             ` Sujith Manoharan
2014-09-17 19:01               ` Emmanuel Grumbach
2014-09-18  3:05                 ` Sujith Manoharan
2014-09-18  4:13                   ` Sujith Manoharan
2014-09-18  5:08                     ` Emmanuel Grumbach
2014-09-18  5:49                       ` Sujith Manoharan
2014-10-09  9:40                         ` Johannes Berg
2014-10-09 10:22                           ` Sujith Manoharan

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