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Ilya Leoshkevich says: ==================== selftests/bpf: Fix "expression result unused" warnings with icecc v3: https://lore.kernel.org/bpf/20250827194929.416969-1-iii@linux.ibm.com/ v3 -> v4: Go back to the original solution (Yonghong, Alexei). v2: https://lore.kernel.org/bpf/20250827130519.411700-1-iii@linux.ibm.com/ v2 -> v3: Do not touch libbpf, explain how having two function declarations works (Andrii). Fix bpf-gcc build (CI). v1: https://lore.kernel.org/bpf/20250508113804.304665-1-iii@linux.ibm.com/ v1 -> v2: Annotate bpf_obj_new_impl() with __must_check (Alexei). Add an explanation about icecc. I took another look at the "expression result unused" warnings I've been seeing, and it turned out that the root cause was the icecc compiler wrapper and what I consider a clang bug. Back then I've reported that the problem was reproducible with plain clang, but now I see that it was clearly a mixup, sorry about that. The solution is to add a few awkward (void) casts. I've added a detailed explanation of why they are helpful to the commit message. ==================== Link: https://patch.msgid.link/20250829030017.102615-1-iii@linux.ibm.com 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 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.