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[ Upstream commitf7019b7b0a] Clang warns: In file included from net/xdp/xsk_queue.c:10: net/xdp/xsk_queue.h:292:2: warning: expression result unused [-Wunused-value] WRITE_ONCE(q->ring->producer, q->prod_tail); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:284:6: note: expanded from macro 'WRITE_ONCE' __u.__val; \ ~~~ ^~~~~ 1 warning generated. The q->prod_tail assignment has a comma at the end, not a semi-colon. Fix that so clang no longer warns and everything works as expected. Fixes:c497176cb2("xsk: add Rx receive functions and poll support") Link: https://github.com/ClangBuiltLinux/linux/issues/544 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Sasha Levin <sashal@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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.