mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-09 02:00:43 -04:00
69443c4730
Dave Marchevsky says: ==================== Similarly to the bpf_get_stack helper, bpf_get_task_stack's return value can be more tightly bound by the verifier - it's the number of bytes written to a user-supplied buffer, or a negative error value. Currently the verifier believes bpf_task_get_stack's retval bounds to be unknown, requiring extraneous bounds checking to remedy. Adding it to do_refine_retval_range fixes the issue, as evidenced by new selftests which fail to load if retval bounds are not refined. v2: Addressed comment nit in patch 3 ==================== 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.