ext4 crypto: do not select from EXT4_FS_ENCRYPTION

This patch adds a tristate EXT4_ENCRYPTION to do the selections
for EXT4_FS_ENCRYPTION because selecting from a bool causes all
the selected options to be built-in, even if EXT4 itself is a
module.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 18228c201f7f4c226f74c15d548ff35e63ff86c6..024f2284d3f6c03ec3a0b4697bc71cbe9d9b9e2e 100644 (file)
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -64,8 +64,8 @@ config EXT4_FS_SECURITY
          If you are not using a security module that requires using
          extended attributes for file security labels, say N.
 
-config EXT4_FS_ENCRYPTION
-       bool "Ext4 Encryption"
+config EXT4_ENCRYPTION
+       tristate "Ext4 Encryption"
        depends on EXT4_FS
        select CRYPTO_AES
        select CRYPTO_CBC
@@ -81,6 +81,11 @@ config EXT4_FS_ENCRYPTION
          efficient since it avoids caching the encrypted and
          decrypted pages in the page cache.
 
+config EXT4_FS_ENCRYPTION
+       bool
+       default y
+       depends on EXT4_ENCRYPTION
+
 config EXT4_DEBUG
        bool "EXT4 debugging support"
        depends on EXT4_FS