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crypto: omap - Use new AES library API

Switch from the old AES library functions (which use struct
crypto_aes_ctx) to the new ones (which use struct aes_enckey). This
eliminates the unnecessary computation and caching of the decryption
round keys. The new AES en/decryption functions are also much faster
and use AES instructions when supported by the CPU.

Note that in addition to the change in the key preparation function and
the key struct type itself, the change in the type of the key struct
results in aes_encrypt() (which is temporarily a type-generic macro)
calling the new encryption function rather than the old one.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20260112192035.10427-32-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

Eric Biggers 86120434 65c7022b

+4 -4
+3 -3
drivers/crypto/omap-aes-gcm.c
··· 177 177 { 178 178 struct omap_aes_gcm_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req)); 179 179 180 - aes_encrypt(&ctx->actx, (u8 *)tag, (u8 *)iv); 180 + aes_encrypt(&ctx->akey, (u8 *)tag, (const u8 *)iv); 181 181 return 0; 182 182 } 183 183 ··· 314 314 struct omap_aes_gcm_ctx *ctx = crypto_aead_ctx(tfm); 315 315 int ret; 316 316 317 - ret = aes_expandkey(&ctx->actx, key, keylen); 317 + ret = aes_prepareenckey(&ctx->akey, key, keylen); 318 318 if (ret) 319 319 return ret; 320 320 ··· 334 334 return -EINVAL; 335 335 keylen -= 4; 336 336 337 - ret = aes_expandkey(&ctx->actx, key, keylen); 337 + ret = aes_prepareenckey(&ctx->akey, key, keylen); 338 338 if (ret) 339 339 return ret; 340 340
+1 -1
drivers/crypto/omap-aes.h
··· 98 98 99 99 struct omap_aes_gcm_ctx { 100 100 struct omap_aes_ctx octx; 101 - struct crypto_aes_ctx actx; 101 + struct aes_enckey akey; 102 102 }; 103 103 104 104 struct omap_aes_reqctx {