4a95c85c99
Extract byte-by-byte comparison of bpf_reg_state in regsafe() into a helper function, which makes it more convenient to use it "on demand" only for registers that benefit from such checks, instead of doing it all the time, even if result of such comparison is ignored. Also, remove WARN_ON_ONCE(1)+return false dead code. There is no risk of missing some case as compiler will warn about non-void function not returning value in some branches (and that under assumption that default case is removed in the future). Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221223054921.958283-6-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.