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The Linux kernel configuration item CONFIG_CRYPTO_GHASH_ARM_CE
has multiple definitions:
arch/arm/crypto/Kconfig
The configuration item CONFIG_CRYPTO_GHASH_ARM_CE:
CONFIG_KERNEL_MODE_NEON
ghash-arm-ce
Use an implementation of GHASH (used by the GCM AEAD chaining mode) that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64) that is part of the ARMv8 Crypto Extensions, or a slower variant that uses the vmull.p8 instruction that is part of the basic NEON ISA.
arch/arm/crypto/Kconfig
The configuration item CONFIG_CRYPTO_GHASH_ARM_CE:
CONFIG_KERNEL_MODE_NEON
ghash-arm-ce
Use an implementation of GHASH (used by the GCM AEAD chaining mode) that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64) that is part of the ARMv8 Crypto Extensions
Raw data from LKDDb:
lkddb module ghash-arm-ce CONFIG_CRYPTO_GHASH_ARM_CE : arch/arm/crypto/Kconfig : "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions" # in 4.1–4.20, 5.0–5.11, 5.12-rc+HEAD
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Automatically generated (in year 2021). See also LKDDb sources on GitLab