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3cb9d5464c
The MSR variable type can be 'unsigned int', which uses less memory than the longer 'unsigned long'. Fix 'struct x86_pmu' for that. The lbr_nr won't be a negative number, so make it 'unsigned int' as well. Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Wei Wang <wei.w.wang@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200613080958.132489-2-like.xu@linux.intel.com
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.