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-rw-r--r--crypto/Makefile8
1 files changed, 7 insertions, 1 deletions
diff --git a/crypto/Makefile b/crypto/Makefile
index b3a7e807e08..989c510da8c 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -2,8 +2,13 @@
# Cryptographic API
#
+# memneq MUST be built with -Os or -O0 to prevent early-return optimizations
+# that will defeat memneq's actual purpose to prevent timing attacks.
+CFLAGS_REMOVE_memneq.o := -O1 -O2 -O3
+CFLAGS_memneq.o := -Os
+
obj-$(CONFIG_CRYPTO) += crypto.o
-crypto-y := api.o cipher.o compress.o
+crypto-y := api.o cipher.o compress.o memneq.o
obj-$(CONFIG_CRYPTO_WORKQUEUE) += crypto_wq.o
@@ -105,3 +110,4 @@ obj-$(CONFIG_XOR_BLOCKS) += xor.o
obj-$(CONFIG_ASYNC_CORE) += async_tx/
obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/
obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o
+obj-$(CONFIG_CRYPTO_ABLK_HELPER) += ablk_helper.o