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[ Upstream commit 6c18b27d6e5c6a7206364eae2b47bc8d8b2fa68f ] If the driver fails to properly prepare for the channel switch, mac80211 will disconnect. If the CSA IE had mode set to 1, it means that the clients are not allowed to send any Tx on the current channel, and that includes the deauthentication frame. Make sure that we don't send the deauthentication frame in this case. In iwlwifi, this caused a failure to flush queues since the firmware already closed the queues after having parsed the CSA IE. Then mac80211 would wait until the deauthentication frame would go out (drv_flush(drop=false)) and that would never happen. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.