From: Eric Biggers <ebiggers@google.com>
Date: Tue, 22 Apr 2025 15:27:13 +0000 (-0700)
Subject: crypto: s390 - move library functions to arch/s390/lib/crypto/
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=3ea91323fe32011092fc75575d9a074ab374d673;p=users%2Fdwmw2%2Flinux.git

crypto: s390 - move library functions to arch/s390/lib/crypto/

Continue disentangling the crypto library functions from the generic
crypto infrastructure by moving the s390 ChaCha library functions into a
new directory arch/s390/lib/crypto/ that does not depend on CRYPTO.
This mirrors the distinction between crypto/ and lib/crypto/.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/arch/s390/crypto/Kconfig b/arch/s390/crypto/Kconfig
index e88d9cd256ef5..a2bfd6eef0ca3 100644
--- a/arch/s390/crypto/Kconfig
+++ b/arch/s390/crypto/Kconfig
@@ -99,12 +99,6 @@ config CRYPTO_DES_S390
 	  As of z990 the ECB and CBC mode are hardware accelerated.
 	  As of z196 the CTR mode is hardware accelerated.
 
-config CRYPTO_CHACHA_S390
-	tristate
-	select CRYPTO_LIB_CHACHA_GENERIC
-	select CRYPTO_ARCH_HAVE_LIB_CHACHA
-	default CRYPTO_LIB_CHACHA_INTERNAL
-
 config CRYPTO_HMAC_S390
 	tristate "Keyed-hash message authentication code: HMAC"
 	select CRYPTO_HASH
diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile
index 14dafadbcbed4..e3853774e1a3a 100644
--- a/arch/s390/crypto/Makefile
+++ b/arch/s390/crypto/Makefile
@@ -11,10 +11,7 @@ obj-$(CONFIG_CRYPTO_SHA3_512_S390) += sha3_512_s390.o sha_common.o
 obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o
 obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o
 obj-$(CONFIG_CRYPTO_PAES_S390) += paes_s390.o
-obj-$(CONFIG_CRYPTO_CHACHA_S390) += chacha_s390.o
 obj-$(CONFIG_S390_PRNG) += prng.o
 obj-$(CONFIG_CRYPTO_GHASH_S390) += ghash_s390.o
 obj-$(CONFIG_CRYPTO_HMAC_S390) += hmac_s390.o
 obj-y += arch_random.o
-
-chacha_s390-y := chacha-glue.o chacha-s390.o
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 14bbfe50033c7..fce4edbe8a078 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -3,6 +3,7 @@
 # Makefile for s390-specific library files..
 #
 
+obj-y += crypto/
 lib-y += delay.o string.o uaccess.o find.o spinlock.o tishift.o
 lib-y += csum-partial.o
 obj-y += mem.o xor.o
diff --git a/arch/s390/lib/crypto/Kconfig b/arch/s390/lib/crypto/Kconfig
new file mode 100644
index 0000000000000..b79fd91af9fe1
--- /dev/null
+++ b/arch/s390/lib/crypto/Kconfig
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config CRYPTO_CHACHA_S390
+	tristate
+	default CRYPTO_LIB_CHACHA_INTERNAL
+	select CRYPTO_LIB_CHACHA_GENERIC
+	select CRYPTO_ARCH_HAVE_LIB_CHACHA
diff --git a/arch/s390/lib/crypto/Makefile b/arch/s390/lib/crypto/Makefile
new file mode 100644
index 0000000000000..06c2cf77178ef
--- /dev/null
+++ b/arch/s390/lib/crypto/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_CRYPTO_CHACHA_S390) += chacha_s390.o
+chacha_s390-y := chacha-glue.o chacha-s390.o
diff --git a/arch/s390/crypto/chacha-glue.c b/arch/s390/lib/crypto/chacha-glue.c
similarity index 100%
rename from arch/s390/crypto/chacha-glue.c
rename to arch/s390/lib/crypto/chacha-glue.c
diff --git a/arch/s390/crypto/chacha-s390.S b/arch/s390/lib/crypto/chacha-s390.S
similarity index 100%
rename from arch/s390/crypto/chacha-s390.S
rename to arch/s390/lib/crypto/chacha-s390.S
diff --git a/arch/s390/crypto/chacha-s390.h b/arch/s390/lib/crypto/chacha-s390.h
similarity index 100%
rename from arch/s390/crypto/chacha-s390.h
rename to arch/s390/lib/crypto/chacha-s390.h
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index 0b06c25eb38a5..db19a7acc2fbf 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -171,6 +171,9 @@ endif
 if RISCV
 source "arch/riscv/lib/crypto/Kconfig"
 endif
+if S390
+source "arch/s390/lib/crypto/Kconfig"
+endif
 endif
 
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