Hash_ctx
struct Hash_ctx *hash, u8 *assoc, unsigned int assoclen)
static void finish_tag(struct gcm_ctx *gctx, struct Hash_ctx *hash, int len)
u8 hashbuf[sizeof(struct Hash_ctx) + PPC_ALIGN];
struct Hash_ctx *hash = PTR_ALIGN((void *)hashbuf, PPC_ALIGN);
static void set_aad(struct gcm_ctx *gctx, struct Hash_ctx *hash,