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1723d39d2f
The logic within __stackleak_erase() can be a little hard to follow, as `boundary` switches from being the low bound to the high bound mid way through the function, and `kstack_ptr` is used to represent the start of the region to erase while `boundary` represents the end of the region to erase. Make this a little clearer by consistently using clearer variable names. The `boundary` variable is removed, the bounds of the region to erase are described by `erase_low` and `erase_high`, and bounds of the task stack are described by `task_stack_low` and `task_stack_high`. As the same time, remove the comment above the variables, since it is unclear whether it's intended as rationale, a complaint, or a TODO, and is more confusing than helpful. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Popov <alex.popov@linux.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220427173128.2603085-6-mark.rutland@arm.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.