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[ Upstream commitdcb2c5c6ca] When dumping vlan options for a single net device we send the same entries infinitely because user-space expects a 0 return at the end but we keep returning skb->len and restarting the dump on retry. Fix it by returning the value from br_vlan_dump_dev() if it completed or there was an error. The only case that must return skb->len is when the dump was incomplete and needs to continue (-EMSGSIZE). Reported-by: Benjamin Poirier <bpoirier@nvidia.com> Fixes:8dcea18708("net: bridge: vlan: add rtm definitions and dump support") Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@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.