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Commitdd9d598c66("ip_gre: add the support for i/o_flags update via netlink") added the ability to change o_flags, but missed that the GSO/LLTX features are disabled by default, and only enabled some gre features are unused. Thus we also need to disable the GSO/LLTX features on the device when the TUNNEL_SEQ or TUNNEL_CSUM flags are set. These two examples should result in the same features being set: ip link add gre_none type gre local 192.168.0.10 remote 192.168.0.20 ttl 255 key 0 ip link set gre_none type gre seq ip link add gre_seq type gre local 192.168.0.10 remote 192.168.0.20 ttl 255 key 1 seq Fixes:dd9d598c66("ip_gre: add the support for i/o_flags update via netlink") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Xin Long <lucien.xin@gmail.com> Acked-by: William Tu <u9012063@gmail.com> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.