linux-master/crypto/algapi.c

99  * This function adds a spawn to the list secondary_spawns which
101  * instances, unless the spawn happens to be one that is depended
112 	struct crypto_spawn *spawn, *n;
114 	spawn = list_first_entry_or_null(stack, struct crypto_spawn, list);
115 	if (!spawn)
118 	n = list_prev_entry(spawn, list);
119 	list_move(&spawn->list, secondary_spawns);
125 	if (!spawn->dead)
161 	struct crypto_spawn *spawn, *n;
168 	list_for_each_entry_safe(spawn, n, spawns, list) {
169 		if ((spawn->alg->cra_flags ^ new_type) & spawn->mask)
172 		list_move(&spawn->list, &top);
178 	 * from alg to the current spawn.
185 			spawn = list_first_entry(spawns, struct crypto_spawn,
187 			inst = spawn->inst;
189 			list_move(&spawn->list, &stack);
190 			spawn->dead = !spawn->registered || &inst->alg != nalg;
192 			if (!spawn->registered)
203 			 * Even if spawn->registered is true, the
228 	list_for_each_entry_safe(spawn, n, &secondary_spawns, list) {
229 		if (!spawn->dead)
230 			list_move(&spawn->list, &spawn->alg->cra_users);
231 		else if (spawn->registered)
232 			crypto_remove_instance(spawn->inst, list);
654 	struct crypto_spawn *spawn;
669 	for (spawn = inst->spawns; spawn;) {
672 		if (spawn->dead)
675 		next = spawn->next;
676 		spawn->inst = inst;
677 		spawn->registered = true;
679 		fips_internal |= spawn->alg->cra_flags;
681 		crypto_mod_put(spawn->alg);
683 		spawn = next;
724 int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
737 	alg = crypto_find_alg(name, spawn->frontend,
744 		list_add(&spawn->list, &alg->cra_users);
745 		spawn->alg = alg;
746 		spawn->mask = mask;
747 		spawn->next = inst->spawns;
748 		inst->spawns = spawn;
760 void crypto_drop_spawn(struct crypto_spawn *spawn)
762 	if (!spawn->alg) /* not yet initialized? */
766 	if (!spawn->dead)
767 		list_del(&spawn->list);
770 	if (!spawn->registered)
771 		crypto_mod_put(spawn->alg);
775 static struct crypto_alg *crypto_spawn_alg(struct crypto_spawn *spawn)
782 	if (!spawn->dead) {
783 		alg = spawn->alg;
800 struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
806 	alg = crypto_spawn_alg(spawn);
826 void *crypto_spawn_tfm2(struct crypto_spawn *spawn)
831 	alg = crypto_spawn_alg(spawn);
835 	tfm = crypto_create_tfm(alg, spawn->frontend);