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Make sure to set BPF_F_TEST_SANITY_STRICT program flag by default across most verifier tests (and a bunch of others that set custom prog flags). There are currently two tests that do fail validation, if enforced strictly: verifier_bounds/crossing_64_bit_signed_boundary_2 and verifier_bounds/crossing_32_bit_signed_boundary_2. To accommodate them, we teach test_loader a flag negation: __flag(!<flagname>) will *clear* specified flag, allowing easy opt-out. We apply __flag(!BPF_F_TEST_SANITY_STRICT) to these to tests. Also sprinkle BPF_F_TEST_SANITY_STRICT everywhere where we already set test-only BPF_F_TEST_RND_HI32 flag, for completeness. Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20231112010609.848406-12-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.