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Johannes Berg 6322e0e75a wifi: mac80211: handle HW restart during ROC
If we have a HW restart in the middle of a ROC period,
then there are two cases:
 - if it's a software ROC, we really don't need to do
   anything, since the ROC work will still be queued
   and will run later, albeit with the interruption
   due to the restart;
 - if it's a hardware ROC, then it may have begun or
   not, if it did begin already we can only remove it
   and tell userspace about that.

In both cases, this fixes the warning that would appear
in ieee80211_start_next_roc() in this case.

In the case of some drivers such as iwlwifi, the part of
restarting is never going to happen since the driver will
cancel the ROC, but flushing the work to ensure nothing
is pending here will also result in no longer being able
to trigger the warning in this case.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240523120352.f1924b5411ea.Ifc02a45a5ce23868dc7e428bad8d0e6996dd10f4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
History 2024-05-29 10:38:53 +02:00
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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 reStructuredText markup notation.

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.