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authorJason A. Donenfeld <Jason@zx2c4.com>2022-05-28 12:24:29 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2022-06-12 14:51:51 +0800
commitabfed87e2a12bd246047d78c01d81eb9529f1d06 (patch)
tree7710650ee3862e806774d01169f2e7786d5e3c9f
parentf2906aa863381afb0015a9eb7fefad885d4e5a56 (diff)
crypto: memneq - move into lib/
This is used by code that doesn't need CONFIG_CRYPTO, so move this into lib/ with a Kconfig option so that it can be selected by whatever needs it. This fixes a linker error Zheng pointed out when CRYPTO_MANAGER_DISABLE_TESTS!=y and CRYPTO=m: lib/crypto/curve25519-selftest.o: In function `curve25519_selftest': curve25519-selftest.c:(.init.text+0x60): undefined reference to `__crypto_memneq' curve25519-selftest.c:(.init.text+0xec): undefined reference to `__crypto_memneq' curve25519-selftest.c:(.init.text+0x114): undefined reference to `__crypto_memneq' curve25519-selftest.c:(.init.text+0x154): undefined reference to `__crypto_memneq' Reported-by: Zheng Bin <zhengbin13@huawei.com> Cc: Eric Biggers <ebiggers@kernel.org> Cc: stable@vger.kernel.org Fixes: aa127963f1ca ("crypto: lib/curve25519 - re-add selftests") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/Kconfig1
-rw-r--r--crypto/Makefile2
-rw-r--r--lib/Kconfig3
-rw-r--r--lib/Makefile1
-rw-r--r--lib/crypto/Kconfig1
-rw-r--r--lib/memneq.c (renamed from crypto/memneq.c)0
6 files changed, 7 insertions, 1 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 19197469cfab..1d44893a997b 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 43bc33e247d1..ceaaa9f34145 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-$(CONFIG_CRYPTO_FIPS) += fips.o
diff --git a/lib/Kconfig b/lib/Kconfig
index 6a843639814f..eaaad4d85bf2 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -120,6 +120,9 @@ config INDIRECT_IOMEM_FALLBACK
source "lib/crypto/Kconfig"
+config LIB_MEMNEQ
+ bool
+
config CRC_CCITT
tristate "CRC-CCITT functions"
help
diff --git a/lib/Makefile b/lib/Makefile
index ea54294d73bf..f99bf61f8bbc 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -251,6 +251,7 @@ obj-$(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 9856e291f414..2082af43d51f 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
index fb11608b1ec1..fb11608b1ec1 100644
--- a/crypto/memneq.c
+++ b/lib/memneq.c