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700d6868fe
The BUG_ON() macro adds a little bit of complexity over BUG(), and in some cases this ends up confusing the compiler's control flow analysis in a way that results in a warning. This one now shows up with clang-21: arch/arm64/kvm/vgic/vgic-mmio.c:1094:3: error: variable 'len' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] 1094 | BUG_ON(1); Change both instances of BUG_ON(1) to a plain BUG() in the arm64 kvm code, to avoid the false-positive warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20250807072132.4170088-1-arnd@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev> |
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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.