Subject: [PATCH -next 1/2] x86: crypto: kmsan: revert !KMSAN dependencies

From: Alexander Potapenko <[email-masked]>
Date: Fri, 9 Sep 2022 11:58:10 +0200

This patch reverts "crypto: Kconfig: fix up for "crypto: kmsan: disable
accelerated configs under KMSAN" used by Stephen Rothwell to cleanly
merge KMSAN patches into linux-next.

Because now arch-specific crypto configs reside in a separate Kconfig
file, we can disable them all by adding a single !KMSAN before including
that file (done in the following patch).

Among others, this patch reverts !KMSAN check for
CONFIG_CRYPTO_AEGIS128_SIMD, which is ARM-only and is hence unnecessary,
because KMSAN does not support ARM yet.

Signed-off-by: Alexander Potapenko <[email-masked]>
Cc: Andrew Morton <[email-masked]>
Cc: Eric Biggers <[email-masked]>
Cc: Herbert Xu <[email-masked]>
Cc: Robert Elliott <[email-masked]>
Cc: Stephen Rothwell <[email-masked]>
Cc: [email-masked]
Cc: [email-masked]
Cc: [email-masked]
---
 arch/x86/crypto/Kconfig | 29 -----------------------------
 crypto/Kconfig          |  1 -
 2 files changed, 30 deletions(-)

diff --git a/arch/x86/crypto/Kconfig b/arch/x86/crypto/Kconfig
index 856f5d8ca65f5..9bb0f7939c6bc 100644
--- a/arch/x86/crypto/Kconfig
+++ b/arch/x86/crypto/Kconfig
@@ -5,7 +5,6 @@ menu "Accelerated Cryptographic Algorithms for CPU (x86)"
 config CRYPTO_CURVE25519_X86
 	tristate "Public key crypto: Curve25519 (ADX)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_LIB_CURVE25519_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	help
@@ -17,7 +16,6 @@ config CRYPTO_CURVE25519_X86
 config CRYPTO_AES_NI_INTEL
 	tristate "Ciphers: AES, modes: ECB, CBC, CTS, CTR, XTR, XTS, GCM (AES-NI)"
 	depends on X86
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_AEAD
 	select CRYPTO_LIB_AES
 	select CRYPTO_ALGAPI
@@ -34,7 +32,6 @@ config CRYPTO_AES_NI_INTEL
 config CRYPTO_BLOWFISH_X86_64
 	tristate "Ciphers: Blowfish, modes: ECB, CBC"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_BLOWFISH_COMMON
 	imply CRYPTO_CTR
@@ -47,7 +44,6 @@ config CRYPTO_BLOWFISH_X86_64
 config CRYPTO_CAMELLIA_X86_64
 	tristate "Ciphers: Camellia with modes: ECB, CBC"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	imply CRYPTO_CTR
 	help
@@ -59,7 +55,6 @@ config CRYPTO_CAMELLIA_X86_64
 config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
 	tristate "Ciphers: Camellia with modes: ECB, CBC (AES-NI/AVX)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_CAMELLIA_X86_64
 	select CRYPTO_SIMD
@@ -74,7 +69,6 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
 config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
 	tristate "Ciphers: Camellia with modes: ECB, CBC (AES-NI/AVX2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_CAMELLIA_AESNI_AVX_X86_64
 	help
 	  Length-preserving ciphers: Camellia with ECB and CBC modes
@@ -86,7 +80,6 @@ config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
 config CRYPTO_CAST5_AVX_X86_64
 	tristate "Ciphers: CAST5 with modes: ECB, CBC (AVX)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_CAST5
 	select CRYPTO_CAST_COMMON
@@ -104,7 +97,6 @@ config CRYPTO_CAST5_AVX_X86_64
 config CRYPTO_CAST6_AVX_X86_64
 	tristate "Ciphers: CAST6 with modes: ECB, CBC (AVX)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_CAST6
 	select CRYPTO_CAST_COMMON
@@ -123,7 +115,6 @@ config CRYPTO_CAST6_AVX_X86_64
 config CRYPTO_DES3_EDE_X86_64
 	tristate "Ciphers: Triple DES EDE with modes: ECB, CBC"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_LIB_DES
 	imply CRYPTO_CTR
@@ -138,7 +129,6 @@ config CRYPTO_DES3_EDE_X86_64
 config CRYPTO_SERPENT_SSE2_X86_64
 	tristate "Ciphers: Serpent with modes: ECB, CBC (SSE2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_SERPENT
 	select CRYPTO_SIMD
@@ -155,7 +145,6 @@ config CRYPTO_SERPENT_SSE2_X86_64
 config CRYPTO_SERPENT_SSE2_586
 	tristate "Ciphers: Serpent with modes: ECB, CBC (32-bit with SSE2)"
 	depends on X86 && !64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_SERPENT
 	select CRYPTO_SIMD
@@ -172,7 +161,6 @@ config CRYPTO_SERPENT_SSE2_586
 config CRYPTO_SERPENT_AVX_X86_64
 	tristate "Ciphers: Serpent with modes: ECB, CBC (AVX)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_SERPENT
 	select CRYPTO_SIMD
@@ -190,7 +178,6 @@ config CRYPTO_SERPENT_AVX_X86_64
 config CRYPTO_SERPENT_AVX2_X86_64
 	tristate "Ciphers: Serpent with modes: ECB, CBC (AVX2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SERPENT_AVX_X86_64
 	help
 	  Length-preserving ciphers: Serpent cipher algorithm
@@ -258,7 +245,6 @@ config CRYPTO_TWOFISH_586
 config CRYPTO_TWOFISH_X86_64
 	tristate "Ciphers: Twofish"
 	depends on (X86 || UML_X86) && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_ALGAPI
 	select CRYPTO_TWOFISH_COMMON
 	imply CRYPTO_CTR
@@ -270,7 +256,6 @@ config CRYPTO_TWOFISH_X86_64
 config CRYPTO_TWOFISH_X86_64_3WAY
 	tristate "Ciphers: Twofish with modes: ECB, CBC (3-way parallel)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_TWOFISH_COMMON
 	select CRYPTO_TWOFISH_X86_64
@@ -286,7 +271,6 @@ config CRYPTO_TWOFISH_X86_64_3WAY
 config CRYPTO_TWOFISH_AVX_X86_64
 	tristate "Ciphers: Twofish with modes: ECB, CBC (AVX)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_SIMD
 	select CRYPTO_TWOFISH_COMMON
@@ -305,7 +289,6 @@ config CRYPTO_TWOFISH_AVX_X86_64
 config CRYPTO_CHACHA20_X86_64
 	tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (SSSE3/AVX2/AVX-512VL)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SKCIPHER
 	select CRYPTO_LIB_CHACHA_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_CHACHA
@@ -321,7 +304,6 @@ config CRYPTO_CHACHA20_X86_64
 config CRYPTO_AEGIS128_AESNI_SSE2
 	tristate "AEAD ciphers: AEGIS-128 (AES-NI/SSE2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_AEAD
 	select CRYPTO_SIMD
 	help
@@ -334,7 +316,6 @@ config CRYPTO_AEGIS128_AESNI_SSE2
 config CRYPTO_NHPOLY1305_SSE2
 	tristate "Hash functions: NHPoly1305 (SSE2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_NHPOLY1305
 	help
 	  NHPoly1305 hash function for Adiantum
@@ -345,7 +326,6 @@ config CRYPTO_NHPOLY1305_SSE2
 config CRYPTO_NHPOLY1305_AVX2
 	tristate "Hash functions: NHPoly1305 (AVX2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_NHPOLY1305
 	help
 	  NHPoly1305 hash function for Adiantum
@@ -356,7 +336,6 @@ config CRYPTO_NHPOLY1305_AVX2
 config CRYPTO_BLAKE2S_X86
 	bool "Hash functions: BLAKE2s (SSSE3/AVX-512)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_LIB_BLAKE2S_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
 	help
@@ -379,7 +358,6 @@ config CRYPTO_POLYVAL_CLMUL_NI
 config CRYPTO_POLY1305_X86_64
 	tristate "Hash functions: Poly1305 (SSE2/AVX2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_LIB_POLY1305_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_POLY1305
 	help
@@ -392,7 +370,6 @@ config CRYPTO_POLY1305_X86_64
 config CRYPTO_SHA1_SSSE3
 	tristate "Hash functions: SHA-1 (SSSE3/AVX/AVX2/SHA-NI)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SHA1
 	select CRYPTO_HASH
 	help
@@ -407,7 +384,6 @@ config CRYPTO_SHA1_SSSE3
 config CRYPTO_SHA256_SSSE3
 	tristate "Hash functions: SHA-224 and SHA-256 (SSSE3/AVX/AVX2/SHA-NI)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SHA256
 	select CRYPTO_HASH
 	help
@@ -422,7 +398,6 @@ config CRYPTO_SHA256_SSSE3
 config CRYPTO_SHA512_SSSE3
 	tristate "Hash functions: SHA-384 and SHA-512 (SSSE3/AVX/AVX2)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_SHA512
 	select CRYPTO_HASH
 	help
@@ -449,7 +424,6 @@ config CRYPTO_SM3_AVX_X86_64
 config CRYPTO_GHASH_CLMUL_NI_INTEL
 	tristate "Hash functions: GHASH (CLMUL-NI)"
 	depends on X86 && 64BIT
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_CRYPTD
 	help
 	  GCM GHASH hash function (NIST SP800-38D)
@@ -460,7 +434,6 @@ config CRYPTO_GHASH_CLMUL_NI_INTEL
 config CRYPTO_CRC32C_INTEL
 	tristate "CRC32c (SSE4.2/PCLMULQDQ)"
 	depends on X86
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_HASH
 	help
 	  CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720)
@@ -472,7 +445,6 @@ config CRYPTO_CRC32C_INTEL
 config CRYPTO_CRC32_PCLMUL
 	tristate "CRC32 (PCLMULQDQ)"
 	depends on X86
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_HASH
 	select CRC32
 	help
@@ -484,7 +456,6 @@ config CRYPTO_CRC32_PCLMUL
 config CRYPTO_CRCT10DIF_PCLMUL
 	tristate "CRCT10DIF (PCLMULQDQ)"
 	depends on X86 && 64BIT && CRC_T10DIF
-	depends on !KMSAN # avoid false positives from assembly
 	select CRYPTO_HASH
 	help
 	  CRC16 CRC algorithm used for the T10 (SCSI) Data Integrity Field (DIF)
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 1dfe0583f302c..40423a14f86f5 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -796,7 +796,6 @@ config CRYPTO_AEGIS128
 config CRYPTO_AEGIS128_SIMD
 	bool "AEGIS-128 (arm NEON, arm64 NEON)"
 	depends on CRYPTO_AEGIS128 && ((ARM || ARM64) && KERNEL_MODE_NEON)
-	depends on !KMSAN # avoid false positives from assembly
 	default y
 	help
 	  AEGIS-128 AEAD algorithm
-- 
2.37.2.789.g6183377224-goog