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8addbfc7b3
This has been enabled for unprivileged programs for only one kernel release, hence the expected annoyances due to this move are low. Users using ringbuf can stick to non-dynptr APIs. The actual use cases dynptr is meant to serve may not make sense in unprivileged BPF programs. Hence, gate these helpers behind CAP_BPF and limit use to privileged BPF programs. Fixes:263ae152e9("bpf: Add bpf_dynptr_from_mem for local dynptrs") Fixes:bc34dee65a("bpf: Dynptr support for ring buffers") Fixes:13bbbfbea7("bpf: Add bpf_dynptr_read and bpf_dynptr_write") Fixes:34d4ef5775("bpf: Add dynptr data slices") Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20220921143550.30247-1-memxor@gmail.com Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.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.