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Peter Zijlstra
18acb7fac2
Because __attribute__((patchable_function_entry)) is only available since GCC-8 this solution fails to build on the minimum required GCC version. Undo these changes so we might try again -- without cluttering up the patches with too many changes. This is an almost complete revert of:dbe69b2998("bpf: Fix dispatcher patchable function entry to 5 bytes nop")ceea991a01("bpf: Move bpf_dispatcher function out of ftrace locations") (notably the arch/x86/Kconfig hunk is kept). Reported-by: David Laight <David.Laight@aculab.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Björn Töpel <bjorn@kernel.org> Tested-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Björn Töpel <bjorn@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lkml.kernel.org/r/439d8dc735bb4858875377df67f1b29a@AcuMS.aculab.com Link: https://lore.kernel.org/bpf/20221103120647.728830733@infradead.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.