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2aeaf663b8
cxl_internal_send_cmd() skips output size validation for variable output commands which is not ideal. Most of the time internal usages want to fail if the output size does not match what was requested. For other commands where the caller cannot predict the size there is usually a a header that conveys how much vaild data is in the payload. For those cases add @min_out as a parameter to specify what the minimum response payload needs to be for the caller to parse the rest of the payload. In this patch only Get Supported Logs has that behavior, but going forward records retrieval commands like Get Poison List and Get Event Records can use @min_out to retrieve a variable amount of records. Critically, this validation scheme skips the needs to interrogate the cxl_mem_commands array which in turn frees up the implementation to support internal command enabling without also enabling external / user commands. Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/167030055918.4044561.10339573829837910505.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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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 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.