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61b258b0d2
Memory accesses in copy_mc_to_kernel() and copy_mc_to_user() are performed by assembly routines and are invisible to KASAN, KCSAN, and KMSAN. Add hooks from instrumentation.h to tell the tools these functions have memcpy/copy_from_user semantics. The call to copy_mc_fragile() in copy_mc_fragile_handle_tail() is left intact, because the latter is only called from the assembly implementation of copy_mc_fragile(), so the memory accesses in it are covered by the instrumentation in copy_mc_to_kernel() and copy_mc_to_user(). Link: https://lore.kernel.org/all/3b7dbd88-0861-4638-b2d2-911c97a4cadf@I-love.SAKURA.ne.jp/ Link: https://lkml.kernel.org/r/20240320101851.2589698-3-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Marco Elver <elver@google.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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| README | ||
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 reStructuredText 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.