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4b357e2a6d
Callers of get_cbm_mask() are required to pass a string into which the capacity bitmask (CBM) is read. Neither CAT nor CMT tests need the bitmask as string but just convert it into an unsigned long value. Another limitation is that the bit mask reader can only read .../cbm_mask files. Generalize the bit mask reading function into get_bit_mask() such that it can be used to handle other files besides the .../cbm_mask and handles the unsigned long conversion within get_bit_mask() using fscanf(). Change get_cbm_mask() to use get_bit_mask() and rename it to get_full_cbm() to better indicate what the function does. Return error from get_full_cbm() if the bitmask is zero for some reason because it makes the code more robust as the selftests naturally assume the bitmask has some bits. Also mark cache_type const while at it and remove useless comments that are related to processing of CBM bits. Co-developed-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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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.