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Message-Id: <20250404000541.2688670-6-sashal@kernel.org> Date: Thu, 3 Apr 2025 20:05:26 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Herbert Xu <herbert@...dor.apana.org.au>, kernel test robot <lkp@...el.com>, Sasha Levin <sashal@...nel.org>, davem@...emloft.net, linux@...linux.org.uk, leitao@...ian.org, nayna@...ux.ibm.com, pfsmorigo@...il.com, maddy@...ux.ibm.com, mpe@...erman.id.au, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com, x86@...nel.org, linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org Subject: [PATCH AUTOSEL 6.12 06/20] crypto: lib/Kconfig - Fix lib built-in failure when arch is modular From: Herbert Xu <herbert@...dor.apana.org.au> [ Upstream commit 1047e21aecdf17c8a9ab9fd4bd24c6647453f93d ] The HAVE_ARCH Kconfig options in lib/crypto try to solve the modular versus built-in problem, but it still fails when the the LIB option (e.g., CRYPTO_LIB_CURVE25519) is selected externally. Fix this by introducing a level of indirection with ARCH_MAY_HAVE Kconfig options, these then go on to select the ARCH_HAVE options if the ARCH Kconfig options matches that of the LIB option. Reported-by: kernel test robot <lkp@...el.com> Closes: https://lore.kernel.org/oe-kbuild-all/202501230223.ikroNDr1-lkp@intel.com/ Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au> Signed-off-by: Sasha Levin <sashal@...nel.org> --- arch/arm/crypto/Kconfig | 6 +++--- arch/powerpc/crypto/Kconfig | 4 ++-- arch/x86/crypto/Kconfig | 6 +++--- lib/crypto/Kconfig | 26 ++++++++++++++++++-------- 4 files changed, 26 insertions(+), 16 deletions(-) diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig index 5ff49a5e9afc9..8af59c1735ea4 100644 --- a/arch/arm/crypto/Kconfig +++ b/arch/arm/crypto/Kconfig @@ -6,7 +6,7 @@ config CRYPTO_CURVE25519_NEON tristate "Public key crypto: Curve25519 (NEON)" depends on KERNEL_MODE_NEON select CRYPTO_LIB_CURVE25519_GENERIC - select CRYPTO_ARCH_HAVE_LIB_CURVE25519 + select CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519 help Curve25519 algorithm @@ -47,7 +47,7 @@ config CRYPTO_NHPOLY1305_NEON config CRYPTO_POLY1305_ARM tristate "Hash functions: Poly1305 (NEON)" select CRYPTO_HASH - select CRYPTO_ARCH_HAVE_LIB_POLY1305 + select CRYPTO_ARCH_MAY_HAVE_LIB_POLY1305 help Poly1305 authenticator algorithm (RFC7539) @@ -214,7 +214,7 @@ config CRYPTO_AES_ARM_CE config CRYPTO_CHACHA20_NEON tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (NEON)" select CRYPTO_SKCIPHER - select CRYPTO_ARCH_HAVE_LIB_CHACHA + select CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA help Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig index 46a4c85e85e24..2a2615e35fdb5 100644 --- a/arch/powerpc/crypto/Kconfig +++ b/arch/powerpc/crypto/Kconfig @@ -6,7 +6,7 @@ config CRYPTO_CURVE25519_PPC64 tristate "Public key crypto: Curve25519 (PowerPC64)" depends on PPC64 && CPU_LITTLE_ENDIAN select CRYPTO_LIB_CURVE25519_GENERIC - select CRYPTO_ARCH_HAVE_LIB_CURVE25519 + select CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519 help Curve25519 algorithm @@ -128,7 +128,7 @@ config CRYPTO_CHACHA20_P10 depends on PPC64 && CPU_LITTLE_ENDIAN && VSX select CRYPTO_SKCIPHER select CRYPTO_LIB_CHACHA_GENERIC - select CRYPTO_ARCH_HAVE_LIB_CHACHA + select CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA help Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms diff --git a/arch/x86/crypto/Kconfig b/arch/x86/crypto/Kconfig index 7b1bebed879df..d87b268d17d39 100644 --- a/arch/x86/crypto/Kconfig +++ b/arch/x86/crypto/Kconfig @@ -6,7 +6,7 @@ config CRYPTO_CURVE25519_X86 tristate "Public key crypto: Curve25519 (ADX)" depends on X86 && 64BIT select CRYPTO_LIB_CURVE25519_GENERIC - select CRYPTO_ARCH_HAVE_LIB_CURVE25519 + select CRYPTO_ARCH_MAY_HAVE_LIB_CURVE25519 help Curve25519 algorithm @@ -352,7 +352,7 @@ config CRYPTO_CHACHA20_X86_64 depends on X86 && 64BIT select CRYPTO_SKCIPHER select CRYPTO_LIB_CHACHA_GENERIC - select CRYPTO_ARCH_HAVE_LIB_CHACHA + select CRYPTO_ARCH_MAY_HAVE_LIB_CHACHA help Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12 stream cipher algorithms @@ -420,7 +420,7 @@ config CRYPTO_POLY1305_X86_64 tristate "Hash functions: Poly1305 (SSE2/AVX2)" depends on X86 && 64BIT select CRYPTO_LIB_POLY1305_GENERIC - select CRYPTO_ARCH_HAVE_LIB_POLY1305 + select CRYPTO_ARCH_MAY_HAVE_LIB_POLY1305 help Poly1305 authenticator algorithm (RFC7539) diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig index b01253cac70a7..c542ef1d64d03 100644 --- a/lib/crypto/Kconfig +++ b/lib/crypto/Kconfig @@ -42,12 +42,17 @@ config CRYPTO_LIB_BLAKE2S_GENERIC of CRYPTO_LIB_BLAKE2S. config CRYPTO_ARCH_HAVE_LIB_CHACHA - tristate + bool help Declares whether the architecture provides an arch-specific 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 @@ -60,7 +65,6 @@ config CRYPTO_LIB_CHACHA_GENERIC config CRYPTO_LIB_CHACHA tristate "ChaCha library interface" - depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n help Enable the ChaCha library interface. This interface may be fulfilled @@ -68,12 +72,17 @@ config CRYPTO_LIB_CHACHA is available and enabled. config CRYPTO_ARCH_HAVE_LIB_CURVE25519 - tristate + bool help Declares whether the architecture provides an arch-specific 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 help @@ -85,7 +94,6 @@ config CRYPTO_LIB_CURVE25519_GENERIC 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 CRYPTO_LIB_UTILS help @@ -104,12 +112,17 @@ config CRYPTO_LIB_POLY1305_RSIZE default 1 config CRYPTO_ARCH_HAVE_LIB_POLY1305 - tristate + bool help Declares whether the architecture provides an arch-specific 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 @@ -121,7 +134,6 @@ config CRYPTO_LIB_POLY1305_GENERIC config CRYPTO_LIB_POLY1305 tristate "Poly1305 library interface" - depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305 select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n help Enable the Poly1305 library interface. This interface may be fulfilled @@ -130,8 +142,6 @@ config CRYPTO_LIB_POLY1305 config CRYPTO_LIB_CHACHA20POLY1305 tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)" - depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA - depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305 depends on CRYPTO select CRYPTO_LIB_CHACHA select CRYPTO_LIB_POLY1305 -- 2.39.5
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