crypto_spawn_aead_alg
alg = crypto_spawn_aead_alg(spawn);
alg = crypto_spawn_aead_alg(&ctx->aead_spawn);
aead_alg = crypto_spawn_aead_alg(&ictx->u.aead_spawn);
alg = crypto_spawn_aead_alg(&ctx->aead);
alg = crypto_spawn_aead_alg(spawn);
alg = crypto_spawn_aead_alg(spawn);
alg = crypto_spawn_aead_alg(&ctx->spawn);