crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes

Update the ARMv8 Crypto Extensions and the plain NEON AES implementations
in CBC and CTR modes to return the next IV back to the skcipher API client.
This is necessary for chaining to work correctly.

Note that for CTR, this is only done if the request is a round multiple of
the block size, since otherwise, chaining is impossible anyway.

Cc: <stable@vger.kernel.org> # v3.16+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

path: root/net/iucv/Kconfig

config IUCV
	depends on S390
	def_tristate y if S390
	prompt "IUCV support (S390 - z/VM only)"
	help
	  Select this option if you want to use inter-user communication
	  under VM or VIF. If you run on z/VM, say "Y" to enable a fast
	  communication link between VM guests.

config AFIUCV
	depends on S390
	def_tristate m if QETH_L3 || IUCV
	prompt "AF_IUCV Socket support (S390 - z/VM and HiperSockets transport)"
	help
	  Select this option if you want to use AF_IUCV socket applications
	  based on z/VM inter-user communication vehicle or based on
	  HiperSockets.