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3943af9d01
During a safe hot remove, the OS powers off the slot, which may cause a Data Link Layer State Changed event. The slot has already been set to OFF_STATE, so that event results in re-enabling the device, making it impossible to safely remove it. Clear out the Presence Detect Changed and Data Link Layer State Changed events when the disabled slot has settled down. It is still possible to re-enable the device if it remains in the slot after pressing the Attention Button by pressing it again. Fixes the problem that Micah reported below: an NVMe drive power button may not actually turn off the drive. Link: https://bugzilla.kernel.org/show_bug.cgi?id=203237 Reported-by: Micah Parrish <micah.parrish@hpe.com> Tested-by: Micah Parrish <micah.parrish@hpe.com> Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko@yadro.com> [bhelgaas: changelog, add bugzilla URL] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> Cc: stable@vger.kernel.org # v4.19+
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.