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The EEH_DEV_NO_HANDLER flag is used by the EEH system to prevent the use of driver callbacks in drivers that have been bound part way through the recovery process. This is necessary to prevent later stage handlers from being called when the earlier stage handlers haven't, which can be confusing for drivers. However, the flag is set for all devices that are added after boot time and only cleared at the end of the EEH recovery process. This results in hot plugged devices erroneously having the flag set during the first recovery after they are added (causing their driver's handlers to be incorrectly ignored). To remedy this, clear the flag at the beginning of recovery processing. The flag is still cleared at the end of recovery processing, although it is no longer really necessary. Also clear the flag during eeh_handle_special_event(), for the same reasons. Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/b8ca5629d27de74c957d4f4b250177d1b6fc4bbd.1565930772.git.sbobroff@linux.ibm.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.
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.