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a=openpgp-sha256; l=2860; i=ardb@kernel.org; h=from:subject; bh=nxbcY1qMUcCM5Jp3a99oXHHwAeI3LF7dd8KEKxZdHZ4=; b=owGbwMvMwCVmkMcZplerG8N4Wi2JIePudKH2XdeuGB133c2V2KjV5uU9u09ni9zLgvJw7qCF0 9Z8LXjSUcrCIMbFICumyCIw+++7nacnStU6z5KFmcPKBDKEgYtTACaS0M7I8OxoakasXPVCVm6x mvWzfBYxuO7SO7rQoEMsbF7GoxkqCxj+cNsr7Pt+bLaWpqps/7OPbIU9G7oT7rhfTTy33L9yhcN 5XgA= X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog Message-ID: <20251001210201.838686-39-ardb+git@google.com> Subject: [PATCH v2 17/20] crypto/arm64: sm3 - Switch to 'ksimd' scoped guard API From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, herbert@gondor.apana.org.au, linux@armlinux.org.uk, Ard Biesheuvel , Marc Zyngier , Will Deacon , Mark Rutland , Kees Cook , Catalin Marinas , Mark Brown , Eric Biggers Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Ard Biesheuvel Signed-off-by: Ard Biesheuvel --- arch/arm64/crypto/sm3-ce-glue.c | 15 ++++++++------- arch/arm64/crypto/sm3-neon-glue.c | 16 ++++++---------- 2 files changed, 14 insertions(+), 17 deletions(-) diff --git a/arch/arm64/crypto/sm3-ce-glue.c b/arch/arm64/crypto/sm3-ce-glu= e.c index eac6f5fa0abe..24c1fcfae072 100644 --- a/arch/arm64/crypto/sm3-ce-glue.c +++ b/arch/arm64/crypto/sm3-ce-glue.c @@ -5,7 +5,6 @@ * Copyright (C) 2018 Linaro Ltd */ =20 -#include #include #include #include @@ -13,6 +12,8 @@ #include #include =20 +#include + MODULE_DESCRIPTION("SM3 secure hash using ARMv8 Crypto Extensions"); MODULE_AUTHOR("Ard Biesheuvel "); MODULE_LICENSE("GPL v2"); @@ -25,18 +26,18 @@ static int sm3_ce_update(struct shash_desc *desc, const= u8 *data, { int remain; =20 - kernel_neon_begin(); - remain =3D sm3_base_do_update_blocks(desc, data, len, sm3_ce_transform); - kernel_neon_end(); + scoped_ksimd() { + remain =3D sm3_base_do_update_blocks(desc, data, len, sm3_ce_transform); + } return remain; } =20 static int sm3_ce_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { - kernel_neon_begin(); - sm3_base_do_finup(desc, data, len, sm3_ce_transform); - kernel_neon_end(); + scoped_ksimd() { + sm3_base_do_finup(desc, data, len, sm3_ce_transform); + } return sm3_base_finish(desc, out); } =20 diff --git a/arch/arm64/crypto/sm3-neon-glue.c b/arch/arm64/crypto/sm3-neon= -glue.c index 6c4611a503a3..15f30cc24f32 100644 --- a/arch/arm64/crypto/sm3-neon-glue.c +++ b/arch/arm64/crypto/sm3-neon-glue.c @@ -5,7 +5,7 @@ * Copyright (C) 2022 Tianjia Zhang */ =20 -#include +#include #include #include #include @@ -20,20 +20,16 @@ asmlinkage void sm3_neon_transform(struct sm3_state *ss= t, u8 const *src, static int sm3_neon_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - int remain; - - kernel_neon_begin(); - remain =3D sm3_base_do_update_blocks(desc, data, len, sm3_neon_transform); - kernel_neon_end(); - return remain; + scoped_ksimd() + return sm3_base_do_update_blocks(desc, data, len, + sm3_neon_transform); } =20 static int sm3_neon_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { - kernel_neon_begin(); - sm3_base_do_finup(desc, data, len, sm3_neon_transform); - kernel_neon_end(); + scoped_ksimd() + sm3_base_do_finup(desc, data, len, sm3_neon_transform); return sm3_base_finish(desc, out); } =20 --=20 2.51.0.618.g983fd99d29-goog