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a06ae6acc1
Paul Chaignon says:
====================
When working with frequently modified BPF programs, both the ID and the
tag may change. bpftool currently doesn't provide a "stable" way to match
such programs. This patchset allows bpftool to match programs and maps by
name.
When given a tag that matches several programs, bpftool currently only
considers the first match. The first patch changes that behavior to
either process all matching programs (for the show and dump commands) or
error out. The second patch implements program lookup by name, with the
same behavior as for tags in case of ambiguity. The last patch implements
map lookup by name.
Changelogs:
Changes in v2:
- Fix buffer overflow after realloc.
- Add example output to commit message.
- Properly close JSON arrays on errors.
- Fix style errors (line breaks, for loops, exit labels, type for
tagname).
- Move do_show code for argc == 2 to do_show_subset functions.
- Rebase.
====================
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.