diff --git a/crypto/Kconfig b/crypto/Kconfig
index a346b6f74bb3..f0743ac4e820 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -15,6 +15,7 @@ source "crypto/async_tx/Kconfig"
 #
 menuconfig CRYPTO
 	tristate "Cryptographic API"
+	select LIB_MEMNEQ
 	help
 	  This option provides the core Cryptographic API.
 
diff --git a/crypto/Makefile b/crypto/Makefile
index c633f15a0481..78b5ab05d6ed 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -4,7 +4,7 @@
 #
 
 obj-$(CONFIG_CRYPTO) += crypto.o
-crypto-y := api.o cipher.o compress.o memneq.o
+crypto-y := api.o cipher.o compress.o
 
 obj-$(CONFIG_CRYPTO_ENGINE) += crypto_engine.o
 obj-$(CONFIG_CRYPTO_FIPS) += fips.o
diff --git a/lib/Kconfig b/lib/Kconfig
index e052f843afed..baa977e003b7 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -123,6 +123,9 @@ config INDIRECT_IOMEM_FALLBACK
 
 source "lib/crypto/Kconfig"
 
+config LIB_MEMNEQ
+	bool
+
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help
diff --git a/lib/Makefile b/lib/Makefile
index 6cf97c60b00b..0868cb67e5b0 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -249,6 +249,7 @@ obj-$(CONFIG_DIMLIB) += dim/
 obj-$(CONFIG_SIGNATURE) += digsig.o
 
 lib-$(CONFIG_CLZ_TAB) += clz_tab.o
+lib-$(CONFIG_LIB_MEMNEQ) += memneq.o
 
 obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
 obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index e8e525650cf2..5056663c2aff 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -71,6 +71,7 @@ config CRYPTO_LIB_CURVE25519
 	tristate "Curve25519 scalar multiplication library"
 	depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
+	select LIB_MEMNEQ
 	help
 	  Enable the Curve25519 library interface. This interface may be
 	  fulfilled by either the generic implementation or an arch-specific
diff --git a/crypto/memneq.c b/lib/memneq.c
similarity index 100%
rename from crypto/memneq.c
rename to lib/memneq.c