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.
Alexei Starovoitov
authored
Andrey Ignatov says: ==================== This patch set makes bpf_sk_lookup_tcp, bpf_sk_lookup_udp and bpf_sk_release helpers available in programs of type BPF_PROG_TYPE_CGROUP_SOCK_ADDR. Patch 1 is a fix for bpf_sk_lookup_udp that was already merged to bpf (stable) tree. Here it's prerequisite for patch 3. Patch 2 is the main patch in the set, it makes the helpers available for BPF_PROG_TYPE_CGROUP_SOCK_ADDR and provides more details about use-case. Patch 3 adds selftest for new functionality. v1->v2: - remove "Split bpf_sk_lookup" patch since it was already split by: commit c8123ead ("bpf: Extend the sk_lookup() helper to XDP hookpoint."); - avoid unnecessary bpf_sock_addr_sk_lookup function. ==================== Signed-off-by:Alexei Starovoitov <ast@kernel.org>