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a=openpgp-sha256; l=2459; i=ardb@kernel.org; h=from:subject; bh=cjwJWt4i7jKdiITTdNRuozrMElZ3Ow1rsFcjCp41v6I=; b=owGbwMvMwCVmkMcZplerG8N4Wi2JIePutDtRV62tdzTOWvv8H6N85apP8zU+pHE0XX+8dkfc+ XknPnrM6ShlYRDjYpAVU2QRmP333c7TE6VqnWfJwsxhZQIZwsDFKQATMdZk+F87y/Ne5BfOHc8/ 3mZY2B+3Pdrzc9G9588Cp8dLvpx1WsObkWHnjJRdwZa9pbmFmr8/W8ztFJOJlbz35bApq+W96/U ajMwA X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog Message-ID: <20251001210201.838686-26-ardb+git@google.com> Subject: [PATCH v2 04/20] crypto: aegis128-neon - Move to more abstract 'ksimd' 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 Move away from calling kernel_neon_begin() and kernel_neon_end() directly, and instead, use the newly introduced scoped_ksimd() API. This permits arm64 to modify the kernel mode NEON API without affecting code that is shared between ARM and arm64. Signed-off-by: Ard Biesheuvel --- crypto/aegis128-neon.c | 33 +++++++------------- 1 file changed, 12 insertions(+), 21 deletions(-) diff --git a/crypto/aegis128-neon.c b/crypto/aegis128-neon.c index 9ee50549e823..b41807e63bd3 100644 --- a/crypto/aegis128-neon.c +++ b/crypto/aegis128-neon.c @@ -4,7 +4,7 @@ */ =20 #include -#include +#include =20 #include "aegis.h" #include "aegis-neon.h" @@ -24,32 +24,28 @@ void crypto_aegis128_init_simd(struct aegis_state *stat= e, const union aegis_block *key, const u8 *iv) { - kernel_neon_begin(); - crypto_aegis128_init_neon(state, key, iv); - kernel_neon_end(); + scoped_ksimd() + crypto_aegis128_init_neon(state, key, iv); } =20 void crypto_aegis128_update_simd(struct aegis_state *state, const void *ms= g) { - kernel_neon_begin(); - crypto_aegis128_update_neon(state, msg); - kernel_neon_end(); + scoped_ksimd() + crypto_aegis128_update_neon(state, msg); } =20 void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *state, u8 *dst, const u8 *src, unsigned int size) { - kernel_neon_begin(); - crypto_aegis128_encrypt_chunk_neon(state, dst, src, size); - kernel_neon_end(); + scoped_ksimd() + crypto_aegis128_encrypt_chunk_neon(state, dst, src, size); } =20 void crypto_aegis128_decrypt_chunk_simd(struct aegis_state *state, u8 *dst, const u8 *src, unsigned int size) { - kernel_neon_begin(); - crypto_aegis128_decrypt_chunk_neon(state, dst, src, size); - kernel_neon_end(); + scoped_ksimd() + crypto_aegis128_decrypt_chunk_neon(state, dst, src, size); } =20 int crypto_aegis128_final_simd(struct aegis_state *state, @@ -58,12 +54,7 @@ int crypto_aegis128_final_simd(struct aegis_state *state, unsigned int cryptlen, unsigned int authsize) { - int ret; - - kernel_neon_begin(); - ret =3D crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen, - authsize); - kernel_neon_end(); - - return ret; + scoped_ksimd() + return crypto_aegis128_final_neon(state, tag_xor, assoclen, + cryptlen, authsize); } --=20 2.51.0.618.g983fd99d29-goog