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e63b94b8dd
This reverts commitb0028e1cc1which is commita7e75016a0upstream. It will break the bpf self-tests build with: progs/timer_crash.c:8:19: error: field has incomplete type 'struct bpf_timer' struct bpf_timer timer; ^ /home/ubuntu/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_helper_defs.h:39:8: note: forward declaration of 'struct bpf_timer' struct bpf_timer; ^ 1 error generated. This test can only be built with 5.17 and newer kernels. Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.