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39c1134c66
The mac80211 tear down code is not waiting for the driver call back. This can bring down the the TX path (TID) till the user manually reconnects. (Observed with iwldvm and enabled TX aggregation.) The race can be prevented when the ampdu_mlme worker handles the tear down. The race: * ieee80211_sta_tear_down_BA_sessions calls ___ieee80211_stop_tx_ba_session for all TIDs, * then cancels the ampdu_mlme worker * and cleanups the TIDs the driver already has called back for. * ieee80211_stop_tx_ba_cb will never be called for a TID if the callback came after the the check in ieee80211_sta_tear_down_BA_sessions. Signed-off-by: Alexander Wetzel <Alexander.Wetzel@web.de> [johannes: "enabled" -> "blocked" and invert logic, simplify init] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.