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Clang supports enabling/disabling certain conversion diagnostics via the -W[no-]compare-distinct-pointer-types command line options. Disabling this warning is required by some BPF selftests due to -Werror. Until very recently GCC would emit these warnings unconditionally, which was a problem for gcc-bpf, but we added support for the command-line options to GCC upstream [1]. This patch moves the -Wno-cmopare-distinct-pointer-types from CLANG_CFLAGS to BPF_CFLAGS in selftests/bpf/Makefile so the option is also used in gcc-bpf builds, not just in clang builds. Tested in bpf-next master. No regressions. [1] https://gcc.gnu.org/pipermail/gcc-patches/2023-August/627769.html Signed-off-by: Jose E. Marchesi <jose.marchesi@oracle.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240130113624.24940-1-jose.marchesi@oracle.com
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.