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a8cb1e92d2Hexagon fails to build after the final patch that makes CONFIG_HAS_IOPORT
optional:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:854:18: error: static declaration of 'ioread8' follows non-static declaration
854 | static inline u8 ioread8(const volatile void __iomem *addr)
| ^
include/asm-generic/io.h:853:17: note: expanded from macro 'ioread8'
853 | #define ioread8 ioread8
| ^
include/asm-generic/iomap.h:29:21: note: previous declaration is here
29 | extern unsigned int ioread8(const void __iomem *);
| ^
As it turns out, most of its asm/io.h and lib/io.c files is redundant now,
and just removing all that makes it build again.
As with the other architectures, defining the __raw_readl()/__raw_writel()
type functions instead of the non-__raw ones is better here for consistency.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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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.