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[ Upstream commitcd560235d8] The table id (second) argument to MODULE_DEVICE_TABLE is often referenced otherwise. This is not the case for CPU features. This leads to a warning when building the kernel with Clang: arch/arm/crypto/crc32-ce-glue.c:239:33: warning: variable 'crc32_cpu_feature' is not needed and will not be emitted [-Wunneeded-internal-declaration] static const struct cpu_feature crc32_cpu_feature[] = { ^ Avoid warnings by using __maybe_unused, similar to commit1f318a8baf("modules: mark __inittest/__exittest as __maybe_unused"). Fixes:2a9faf8b7e("crypto: arm/crc32 - enable module autoloading based on CPU feature bits") Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 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.