static int blkcipher_walk_first(struct blkcipher_desc *desc, struct blkcipher_walk *walk) { struct crypto_blkcipher *tfm = desc->tfm; unsigned int alignmask = crypto_blkcipher_alignmask(tfm); if (WARN_ON_ONCE(in_irq())) return -EDEADLK; walk->nbytes = walk->total; if (unlikely(!walk->total)) return 0; walk->buffer = NULL; walk->iv = desc->info; if (unlikely(((unsigned long)walk->iv & alignmask))) { int err = blkcipher_copy_iv(walk, tfm, alignmask); if (err) return err; } scatterwalk_start(&walk->in, walk->in.sg); scatterwalk_start(&walk->out, walk->out.sg); walk->page = NULL; return blkcipher_walk_next(desc, walk); }
static int blkcipher_walk_first(struct blkcipher_desc *desc, struct blkcipher_walk *walk) { #ifdef CONFIG_CRYPTO_FIPS if (unlikely(in_fips_err())) return (-EACCES); #endif if (WARN_ON_ONCE(in_irq())) return -EDEADLK; walk->nbytes = walk->total; if (unlikely(!walk->total)) return 0; walk->buffer = NULL; walk->iv = desc->info; if (unlikely(((unsigned long)walk->iv & walk->alignmask))) { int err = blkcipher_copy_iv(walk); if (err) return err; } scatterwalk_start(&walk->in, walk->in.sg); scatterwalk_start(&walk->out, walk->out.sg); walk->page = NULL; return blkcipher_walk_next(desc, walk); }