[PATCH] crypto: lib/Kconfig - Select and hide arch options

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The ARCH_MAY_HAVE patch missed arm64, mips and s390.  But it may
also lead to arch options being enabled but ineffective because
of modular/built-in conflicts.

As the primary user of all these options wireguard is selecting
the arch options anyway, make the same selections at the lib/crypto
option level and hide the arch options from the user.

Fixes: 1047e21aecdf ("crypto: lib/Kconfig - Fix lib built-in failure when arch is modular")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Arnd Bergmann <arnd@xxxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202502232152.JC84YDLp-lkp@xxxxxxxxx/
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index 47d9cc59f254..e28c177e63d3 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -3,10 +3,10 @@
 menu "Accelerated Cryptographic Algorithms for CPU (arm)"
 
 config CRYPTO_CURVE25519_NEON
-	tristate "Public key crypto: Curve25519 (NEON)"
+	tristate
 	depends on KERNEL_MODE_NEON
-	select CRYPTO_LIB_CURVE25519_GENERIC
-	select CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519
+	select CRYPTO_KPP
+	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	help
 	  Curve25519 algorithm
 
@@ -45,9 +45,9 @@ config CRYPTO_NHPOLY1305_NEON
 	  - NEON (Advanced SIMD) extensions
 
 config CRYPTO_POLY1305_ARM
-	tristate "Hash functions: Poly1305 (NEON)"
+	tristate
 	select CRYPTO_HASH
-	select CRYPTO_ARCH_MAY_HAVE_LIB_POLY1305
+	select CRYPTO_ARCH_HAVE_LIB_POLY1305
 	help
 	  Poly1305 authenticator algorithm (RFC7539)
 
@@ -212,9 +212,9 @@ config CRYPTO_AES_ARM_CE
 	  - ARMv8 Crypto Extensions
 
 config CRYPTO_CHACHA20_NEON
-	tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (NEON)"
+	tristate
 	select CRYPTO_SKCIPHER
-	select CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA
+	select CRYPTO_ARCH_HAVE_LIB_CHACHA
 	help
 	  Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
 	  stream cipher algorithms
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
index 5636ab83f22a..6bf844da022d 100644
--- a/arch/arm64/crypto/Kconfig
+++ b/arch/arm64/crypto/Kconfig
@@ -26,7 +26,7 @@ config CRYPTO_NHPOLY1305_NEON
 	  - NEON (Advanced SIMD) extensions
 
 config CRYPTO_POLY1305_NEON
-	tristate "Hash functions: Poly1305 (NEON)"
+	tristate
 	depends on KERNEL_MODE_NEON
 	select CRYPTO_HASH
 	select CRYPTO_ARCH_HAVE_LIB_POLY1305
@@ -186,10 +186,9 @@ config CRYPTO_AES_ARM64_NEON_BLK
 	  - NEON (Advanced SIMD) extensions
 
 config CRYPTO_CHACHA20_NEON
-	tristate "Ciphers: ChaCha (NEON)"
+	tristate
 	depends on KERNEL_MODE_NEON
 	select CRYPTO_SKCIPHER
-	select CRYPTO_LIB_CHACHA_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_CHACHA
 	help
 	  Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
diff --git a/arch/mips/crypto/Kconfig b/arch/mips/crypto/Kconfig
index 7decd40c4e20..e02481cc9c06 100644
--- a/arch/mips/crypto/Kconfig
+++ b/arch/mips/crypto/Kconfig
@@ -3,8 +3,9 @@
 menu "Accelerated Cryptographic Algorithms for CPU (mips)"
 
 config CRYPTO_POLY1305_MIPS
-	tristate "Hash functions: Poly1305"
+	tristate
 	depends on MIPS
+	select CRYPTO_HASH
 	select CRYPTO_ARCH_HAVE_LIB_POLY1305
 	help
 	  Poly1305 authenticator algorithm (RFC7539)
@@ -52,7 +53,7 @@ config CRYPTO_SHA512_OCTEON
 	  Architecture: mips OCTEON using crypto instructions, when available
 
 config CRYPTO_CHACHA_MIPS
-	tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (MIPS32r2)"
+	tristate
 	depends on CPU_MIPS32_R2
 	select CRYPTO_SKCIPHER
 	select CRYPTO_ARCH_HAVE_LIB_CHACHA
diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index e453cb0c82d2..589ae680a272 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -3,10 +3,10 @@
 menu "Accelerated Cryptographic Algorithms for CPU (powerpc)"
 
 config CRYPTO_CURVE25519_PPC64
-	tristate "Public key crypto: Curve25519 (PowerPC64)"
+	tristate
 	depends on PPC64 && CPU_LITTLE_ENDIAN
-	select CRYPTO_LIB_CURVE25519_GENERIC
-	select CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519
+	select CRYPTO_KPP
+	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	help
 	  Curve25519 algorithm
 
@@ -91,11 +91,10 @@ config CRYPTO_AES_GCM_P10
 	  later CPU. This module supports stitched acceleration for AES/GCM.
 
 config CRYPTO_CHACHA20_P10
-	tristate "Ciphers: ChaCha20, XChacha20, XChacha12 (P10 or later)"
+	tristate
 	depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
 	select CRYPTO_SKCIPHER
-	select CRYPTO_LIB_CHACHA_GENERIC
-	select CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA
+	select CRYPTO_ARCH_HAVE_LIB_CHACHA
 	help
 	  Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
 	  stream cipher algorithms
diff --git a/arch/riscv/crypto/Kconfig b/arch/riscv/crypto/Kconfig
index ad58dad9a580..c67095a3d669 100644
--- a/arch/riscv/crypto/Kconfig
+++ b/arch/riscv/crypto/Kconfig
@@ -22,7 +22,6 @@ config CRYPTO_CHACHA_RISCV64
 	tristate "Ciphers: ChaCha"
 	depends on 64BIT && RISCV_ISA_V && TOOLCHAIN_HAS_VECTOR_CRYPTO
 	select CRYPTO_SKCIPHER
-	select CRYPTO_LIB_CHACHA_GENERIC
 	help
 	  Length-preserving ciphers: ChaCha20 stream cipher algorithm
 
diff --git a/arch/s390/crypto/Kconfig b/arch/s390/crypto/Kconfig
index b760232537f1..c327aeccfde7 100644
--- a/arch/s390/crypto/Kconfig
+++ b/arch/s390/crypto/Kconfig
@@ -108,10 +108,9 @@ config CRYPTO_DES_S390
 	  As of z196 the CTR mode is hardware accelerated.
 
 config CRYPTO_CHACHA_S390
-	tristate "Ciphers: ChaCha20"
+	tristate
 	depends on S390
 	select CRYPTO_SKCIPHER
-	select CRYPTO_LIB_CHACHA_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_CHACHA
 	help
 	  Length-preserving cipher: ChaCha20 stream cipher (RFC 7539)
diff --git a/arch/x86/crypto/Kconfig b/arch/x86/crypto/Kconfig
index c189dad0969b..725105919cd3 100644
--- a/arch/x86/crypto/Kconfig
+++ b/arch/x86/crypto/Kconfig
@@ -3,10 +3,10 @@
 menu "Accelerated Cryptographic Algorithms for CPU (x86)"
 
 config CRYPTO_CURVE25519_X86
-	tristate "Public key crypto: Curve25519 (ADX)"
+	tristate
 	depends on X86 && 64BIT
-	select CRYPTO_LIB_CURVE25519_GENERIC
-	select CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519
+	select CRYPTO_KPP
+	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	help
 	  Curve25519 algorithm
 
@@ -348,11 +348,10 @@ config CRYPTO_ARIA_GFNI_AVX512_X86_64
 	  Processes 64 blocks in parallel.
 
 config CRYPTO_CHACHA20_X86_64
-	tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (SSSE3/AVX2/AVX-512VL)"
+	tristate
 	depends on X86 && 64BIT
 	select CRYPTO_SKCIPHER
-	select CRYPTO_LIB_CHACHA_GENERIC
-	select CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA
+	select CRYPTO_ARCH_HAVE_LIB_CHACHA
 	help
 	  Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
 	  stream cipher algorithms
@@ -417,10 +416,10 @@ config CRYPTO_POLYVAL_CLMUL_NI
 	  - CLMUL-NI (carry-less multiplication new instructions)
 
 config CRYPTO_POLY1305_X86_64
-	tristate "Hash functions: Poly1305 (SSE2/AVX2)"
+	tristate
 	depends on X86 && 64BIT
-	select CRYPTO_LIB_POLY1305_GENERIC
-	select CRYPTO_ARCH_MAY_HAVE_LIB_POLY1305
+	select CRYPTO_HASH
+	select CRYPTO_ARCH_HAVE_LIB_POLY1305
 	help
 	  Poly1305 authenticator algorithm (RFC7539)
 
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index c542ef1d64d0..f095df82f5e9 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -48,11 +48,6 @@ config CRYPTO_ARCH_HAVE_LIB_CHACHA
 	  accelerated implementation of the ChaCha library interface,
 	  either builtin or as a module.
 
-config CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA
-	tristate
-	select CRYPTO_ARCH_HAVE_LIB_CHACHA if CRYPTO_LIB_CHACHA=m
-	select CRYPTO_ARCH_HAVE_LIB_CHACHA if CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA=y
-
 config CRYPTO_LIB_CHACHA_GENERIC
 	tristate
 	select CRYPTO_LIB_UTILS
@@ -65,7 +60,13 @@ config CRYPTO_LIB_CHACHA_GENERIC
 
 config CRYPTO_LIB_CHACHA
 	tristate "ChaCha library interface"
+	select CRYPTO
 	select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n
+	select CRYPTO_CHACHA20_X86_64 if X86 && 64BIT
+	select CRYPTO_CHACHA20_NEON if ARM || (ARM64 && KERNEL_MODE_NEON)
+	select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
+	select CRYPTO_CHACHA_S390 if S390
+	select CRYPTO_CHACHA20_P10 if PPC64 && CPU_LITTLE_ENDIAN && VSX
 	help
 	  Enable the ChaCha library interface. This interface may be fulfilled
 	  by either the generic implementation or an arch-specific one, if one
@@ -78,13 +79,9 @@ config CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	  accelerated implementation of the Curve25519 library interface,
 	  either builtin or as a module.
 
-config CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519
-	tristate
-	select CRYPTO_ARCH_HAVE_LIB_CURVE25519 if CRYPTO_LIB_CURVE25519=m
-	select CRYPTO_ARCH_HAVE_LIB_CURVE25519 if CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519=y
-
 config CRYPTO_LIB_CURVE25519_GENERIC
 	tristate
+	select CRYPTO_LIB_UTILS
 	help
 	  This symbol can be depended upon by arch implementations of the
 	  Curve25519 library interface that require the generic code as a
@@ -95,7 +92,9 @@ config CRYPTO_LIB_CURVE25519_GENERIC
 config CRYPTO_LIB_CURVE25519
 	tristate "Curve25519 scalar multiplication library"
 	select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
-	select CRYPTO_LIB_UTILS
+	select CRYPTO_CURVE25519_X86 if X86 && 64BIT
+	select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
+	select CRYPTO_CURVE25519_PPC64 if PPC64 && CPU_LITTLE_ENDIAN
 	help
 	  Enable the Curve25519 library interface. This interface may be
 	  fulfilled by either the generic implementation or an arch-specific
@@ -118,11 +117,6 @@ config CRYPTO_ARCH_HAVE_LIB_POLY1305
 	  accelerated implementation of the Poly1305 library interface,
 	  either builtin or as a module.
 
-config CRYPTO_ARCH_MAY_HAVE_LIB_POLY1305
-	tristate
-	select CRYPTO_ARCH_HAVE_LIB_POLY1305 if CRYPTO_LIB_POLY1305=m
-	select CRYPTO_ARCH_HAVE_LIB_POLY1305 if CRYPTO_ARCH_MAY_HAVE_LIB_POLY1305=y
-
 config CRYPTO_LIB_POLY1305_GENERIC
 	tristate
 	help
@@ -135,6 +129,10 @@ config CRYPTO_LIB_POLY1305_GENERIC
 config CRYPTO_LIB_POLY1305
 	tristate "Poly1305 library interface"
 	select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n
+	select CRYPTO_POLY1305_X86_64 if X86 && 64BIT
+	select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
+	select CRYPTO_POLY1305_ARM if ARM
+	select CRYPTO_POLY1305_MIPS if MIPS
 	help
 	  Enable the Poly1305 library interface. This interface may be fulfilled
 	  by either the generic implementation or an arch-specific one, if one
@@ -142,9 +140,10 @@ config CRYPTO_LIB_POLY1305
 
 config CRYPTO_LIB_CHACHA20POLY1305
 	tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)"
-	depends on CRYPTO
+	select CRYPTO
 	select CRYPTO_LIB_CHACHA
 	select CRYPTO_LIB_POLY1305
+	select CRYPTO_LIB_UTILS
 	select CRYPTO_ALGAPI
 
 config CRYPTO_LIB_SHA1
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt




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