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Reinette reported following compilation issue on Fedora 32, gcc version 10.1.1 /usr/bin/ld: cqm_test.o:<src_dir>/cqm_test.c:22: multiple definition of `cache_size'; cat_test.o:<src_dir>/cat_test.c:23: first defined here The same issue is reported for long_mask, cbm_mask, count_of_bits etc variables as well. Compiler isn't happy because these variables are defined globally in two .c files namely cqm_test.c and cat_test.c and the compiler during compilation finds that the variable is already defined (multiple definition error). Taking a closer look at the usage of these variables reveals that these variables are used only locally in functions such as cqm_resctrl_val() (defined in cqm_test.c) and cat_perf_miss_val() (defined in cat_test.c). These variables are not shared between those functions. So, there is no need for these variables to be global. Hence, fix this issue by making them static variables. Reported-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Shuah Khan <skhan@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.