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d30dfd490f
A cast inside __builtin_constant_p doesn't do anything since it should evaluate as constant at compile time irrespective of this cast. Instead, I moved this cast outside the ternary to ensure the return type is as expected. Additionally, if __HAVE_BUILTIN_BSWAP16__ was not defined then __swab16 is actually returning an `int` not a `u16` due to integer promotion. As Al Viro notes: You *can't* get smaller-than-int out of ? :, same as you can't get it out of addition, etc. This also fixes some clang -Wformat warnings involving default argument promotion. Link: https://github.com/ClangBuiltLinux/linux/issues/378 Link: https://lkml.kernel.org/r/20220608223539.470472-1-justinstitt@google.com Signed-off-by: Justin Stitt <jstitt007@gmail.com> Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Suggested-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.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.
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.