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0711153018
tcp_skb_can_collapse() checks for conditions which don't make sense on input. Because of this we ended up sprinkling a few pairs of mptcp_skb_can_collapse() and skb_cmp_decrypted() calls on the input path. Group them in a new helper. This should make it less likely that someone will check mptcp and not decrypted or vice versa when adding new code. This implicitly adds a decrypted check early in tcp_collapse(). AFAIU this will very slightly increase our ability to collapse packets under memory pressure, not a real bug. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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.