From 71dea01ea2edb73f3c5d9a0cd7ba028bb9313287 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 31 May 2015 13:31:37 -0400
Subject: ext4 crypto: require CONFIG_CRYPTO_CTR if ext4 encryption is enabled

On arm64 this is apparently needed for CTS mode to function correctly.
Otherwise attempts to use CTS return ENOENT.

Change-Id: I732ea9a5157acc76de5b89edec195d0365f4ca63
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 024f228..bf8bc8a 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -72,6 +72,7 @@ config EXT4_ENCRYPTION
 	select CRYPTO_ECB
 	select CRYPTO_XTS
 	select CRYPTO_CTS
+	select CRYPTO_CTR
 	select CRYPTO_SHA256
 	select KEYS
 	select ENCRYPTED_KEYS
-- 
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