b3c56f8f20
In a recent change to the Arm architecture with the end goal of removing highmem we need to convert virt_to_phys() and virt_to_pfn() to static inline functions. This will make them strongly typed. However since virt_to_* is always implemented as macros they have become polymorphic and accept both (void *) and e.g. unsigned long as arguments. Other functions such as virt_to_page() simply wrap virt_to_pfn() and get affected indirectly. To be able to proceed, patch mm to use (void *) as argument to affected functions in all instances. This patch (of 5): A pointer into virtual memory is represented by a (void *) not an u32, so the compiler warns: lib/test_free_pages.c:20:50: warning: passing argument 1 of 'virt_to_pfn' makes pointer from integer without a cast [-Wint-conversion] Fix this with an explicit cast. Link: https://lkml.kernel.org/r/20220630084124.691207-1-linus.walleij@linaro.org Link: https://lkml.kernel.org/r/20220630084124.691207-2-linus.walleij@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Marco Elver <elver@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
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.