ebfbc46b35
It is not unusual to have the bridge port down. Sometimes it has the old MTU, which is fine since it's not being used. However, the kernel spams the log with a warning message when a packet is going to be sent over such port. Fix that by warning only if the interface is UP. Signed-off-by: Flavio Leitner <fbl@sysclose.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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.