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Guillaume Nault says: ==================== gre: Reapply IPv6 link-local address generation fix. Reintroduce the IPv6 link-local address generation fix for GRE and its kernel selftest. These patches were introduced by merge commitb3fc5927de("Merge branch 'gre-fix-regressions-in-ipv6-link-local-address-generation'") but have been reverted by commit8417db0be5("Merge branch 'gre-revert-ipv6-link-local-address-fix'"), because it uncovered another bug in multipath routing. Now that this bug has been investigated and fixed, we can apply the GRE link-local address fix and its kernel selftest again. For convenience, here's the original cover letter: IPv6 link-local address generation has some special cases for GRE devices. This has led to several regressions in the past, and some of them are still not fixed. This series fixes the remaining problems, like the ipv6.conf.<dev>.addr_gen_mode sysctl being ignored and the router discovery process not being started (see details in patch 1). To avoid any further regressions, patch 2 adds selftests covering IPv4 and IPv6 gre/gretap devices with all combinations of currently supported addr_gen_mode values. ==================== Link: https://patch.msgid.link/cover.1746225213.git.gnault@redhat.com 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
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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.