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e82c649e85
This reverts commit6fc498bc82. Commit6fc498bc82states: SCI should be updated, because it contains MAC in its first 6 octets. That's not entirely correct. The SCI can be based on the MAC address, but doesn't have to be. We can also use any 64-bit number as the SCI. When the SCI based on the MAC address, it uses a 16-bit "port number" provided by userspace, which commit6fc498bc82overwrites with 1. In addition, changing the SCI after macsec has been setup can just confuse the receiver. If we configure the RXSC on the peer based on the original SCI, we should keep the same SCI on TX. When the macsec device is being managed by a userspace key negotiation daemon such as wpa_supplicant, commit6fc498bc82would also overwrite the SCI defined by userspace. Fixes:6fc498bc82("net: macsec: update SCI upon MAC address change.") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://lore.kernel.org/r/9b1a9d28327e7eb54550a92eebda45d25e54dd0d.1660667033.git.sd@queasysnail.net Signed-off-by: Jakub Kicinski <kuba@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.