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f343e578fe
Some parallel adapters (e.g. EXP Computer MC-1285B EPP Cable) return bogus values when there's no master device present. This can cause reset to fail, preventing the lone slave device (such as EXP Computer CD-865) from working. Add custom version of wait_after_reset that ignores master failure when a slave device is present. The custom version is also needed because the generic ata_sff_wait_after_reset uses direct port I/O for slave device detection. Signed-off-by: Ondrej Zary <linux@zary.sk> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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.