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commit3ef6009235upstream. For REPORT SUPPORTED OPERATION CODES command, the service action field is defined as bits 0-4 in the second byte in the CDB. Bits 5-7 in the second byte are reserved. Only look at the service action field in the second byte when determining if the MAINTENANCE IN opcode is a REPORT SUPPORTED OPERATION CODES command. This matches how we only look at the service action field in the second byte when determining if the SERVICE ACTION IN(16) opcode is a READ CAPACITY(16) command (reserved bits 5-7 in the second byte are ignored). Fixes:7b20309428("libata: Add support for SCT Write Same") Cc: stable@vger.kernel.org Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.