ARMv4-ARMv8, with NEON for ARMv7 and ARMv8.

x86_64 only at the moment. SSSE3, AVX, AVX2, AVX512.

Signed-off-by: Samuel Neves <sneves@dei.uc.pt>

Fedora/Redhat doesn't ship with a prefixed strip, and we don't need to
use it anyway when we're not cross compiling, so don't.

Reported-by: Samuel Neves <sneves@dei.uc.pt>

Reported-by: Cedric Buxin <cedric.buxin@izri.org>

When an interface is down, the socket port can change freely. A socket
will be allocated when the interface comes up, and if a socket can't be
allocated, the interface doesn't come up.

However, a socket port can change while the interface is up. In this
case, if a new socket with a new port cannot be allocated, it's
important to keep the interface in a consistent state. The choices are
either to bring down the interface or to preserve the old socket. This
patch implements the latter.

Reported-by: Marc-Antoine Perennou <keruspe@exherbo.org>

Despite not having access to the latest grsecurity source, I still do
very much want to keep supporting it, so this patch is my best guess at
what will work.

In thumb mode, it's not possible to use sp as an operand of and, so we
have to muck around with r3 as a scratch register.

Reported-by: Hermann Lienstromberg <nurtic-vibe@grmml.net>

These aren't actually valid 25519 points pre-normalization, and doing
this is required to make unsetting private keys based on all zeros.

Makes it more clear that this _not_ a routing table replacement.

Otherwise, if messages pack really close together, we'll exceed the size
of the sk_buff and return ENOBUFS. I suspect this has been the cause of
a lot of weird bugs that people just worked around by increasing the
receive buffer size. This actually addresses the root cause.

These changes were suggested by checkpatch.pl, but actually cause big
problems depending on the options. Revert.

Git complains when applying this Kconfig file as part of a patch to the
kernel tree, so drop the trailing whitespace.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>