The newly added generic crypto abstraction for file systems operates
on 'struct bio' objects, which do not exist when CONFIG_BLOCK is
disabled:
fs/crypto/crypto.c: In function 'fscrypt_zeroout_range':
fs/crypto/crypto.c:308:9: error: implicit declaration of function 'bio_alloc' [-Werror=implicit-function-declaration]
This adds a Kconfig dependency that prevents FS_ENCRYPTION from being
enabled without BLOCK.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 846c506fadf7 ("fs crypto: add Makefile and Kconfig")
---
fs/crypto/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/crypto/Kconfig b/fs/crypto/Kconfig
index fc5a4f94c87d..9bea124e274b 100644
--- a/fs/crypto/Kconfig
+++ b/fs/crypto/Kconfig
@@ -1,5 +1,6 @@
config FS_ENCRYPTION
bool "FS Encryption (Per-file encryption)"
+ depends on BLOCK
select CRYPTO_AES
select CRYPTO_CBC
select CRYPTO_ECB
--
2.7.0
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