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8edc27fc4f
At the beginning in 2009 one patch [1] introduced collecting drop counter in nf_conntrack_in() by returning -NF_DROP. Later, another patch [2] changed the return value of tcp_packet() which now is renamed to nf_conntrack_tcp_packet() from -NF_DROP to NF_DROP. As we can see, that -NF_DROP should be corrected. Similarly, there are other two points where the -NF_DROP is used. Well, as NF_DROP is equal to 0, inverting NF_DROP makes no sense as patch [2] said many years ago. [1] commit7d1e04598e("netfilter: nf_conntrack: account packets drop by tcp_packet()") [2] commitec8d540969("netfilter: conntrack: fix dropping packet after l4proto->packet()") Signed-off-by: Jason Xing <kernelxing@tencent.com> 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 reStructuredText 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.