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Kees Cook says: ==================== net: Introduce struct sockaddr_unsized The historically fixed-size struct sockaddr is part of UAPI and embedded in many existing structures. The kernel uses struct sockaddr extensively within the kernel to represent arbitrarily sized sockaddr structures, which caused problems with the compiler's ability to determine object sizes correctly. The "temporary" solution was to make sockaddr explicitly use a flexible array, but this causes problems for embedding struct sockaddr in structures, where once again the compiler has to guess about the size of such objects, and causes thousands of warnings under the coming -Wflex-array-member-not-at-end warning. Switching to sockaddr_storage internally everywhere wastes a lot of memory, so we are left with needing two changes: - introduction of an explicitly arbitrarily sized sockaddr struct - switch struct sockaddr back to being fixed size Doing the latter step requires all "arbitrarily sized" uses of struct sockaddr to be replaced with the new struct from the first step. So, introduce the new struct and do enough conversions that we can switch sockaddr back to a fixed-size sa_data. ==================== Link: https://patch.msgid.link/20251104002608.do.383-kees@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
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| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
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| Kbuild | ||
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| 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 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.