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d4d89e6546
Walk the rule headers until the trailer one (last_bit flag set) instead of stopping at last_rule address. This avoids the need to store the address when jumping to another chain. This cuts size of jumpstack array by one third, on 64bit from 384 to 256 bytes. Still, stack usage is still quite large: scripts/stackusage: nf_tables_core.c:258 nft_do_chain 496 static Next patch will also remove chain pointer. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.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.