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a095f42105
Jump history updating and state equivalence checks are conceptually independent, so move push_jmp_history() out of is_state_visited(). Also make a decision whether to perform state equivalence checks or not one layer higher in do_check(), keeping is_state_visited() unconditionally performing state checks. push_jmp_history() should be performed after state checks. There is just one small non-uniformity. When is_state_visited() finds already validated equivalent state, it propagates precision marks to current state's parent chain. For this to work correctly, jump history has to be updated, so is_state_visited() is doing that internally. But if no equivalent verified state is found, jump history has to be updated in a newly cloned child state, so is_jmp_point() + push_jmp_history() is performed after is_state_visited() exited with zero result, which means "proceed with validation". This change has no functional changes. It's not strictly necessary, but feels right to decouple these two processes. Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221206233345.438540-3-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.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.