47 #include <crypto/internal/rng.h>
83  * implement a high-resolution time stamp, the RNG code's runtime test
204 	struct jitterentropy *rng = crypto_tfm_ctx(tfm);  in jent_kcapi_cleanup()  local
206 	spin_lock(&rng->jent_lock);  in jent_kcapi_cleanup()
208 	if (rng->sdesc) {  in jent_kcapi_cleanup()
209 		shash_desc_zero(rng->sdesc);  in jent_kcapi_cleanup()
210 		kfree(rng->sdesc);  in jent_kcapi_cleanup()
212 	rng->sdesc = NULL;  in jent_kcapi_cleanup()
214 	if (rng->tfm)  in jent_kcapi_cleanup()
215 		crypto_free_shash(rng->tfm);  in jent_kcapi_cleanup()
216 	rng->tfm = NULL;  in jent_kcapi_cleanup()
218 	if (rng->entropy_collector)  in jent_kcapi_cleanup()
219 		jent_entropy_collector_free(rng->entropy_collector);  in jent_kcapi_cleanup()
220 	rng->entropy_collector = NULL;  in jent_kcapi_cleanup()
221 	spin_unlock(&rng->jent_lock);  in jent_kcapi_cleanup()
226 	struct jitterentropy *rng = crypto_tfm_ctx(tfm);  in jent_kcapi_init()  local
231 	spin_lock_init(&rng->jent_lock);  in jent_kcapi_init()
239 	rng->tfm = hash;  in jent_kcapi_init()
250 	rng->sdesc = sdesc;  in jent_kcapi_init()
252 	rng->entropy_collector =  in jent_kcapi_init()
255 	if (!rng->entropy_collector) {  in jent_kcapi_init()
260 	spin_lock_init(&rng->jent_lock);  in jent_kcapi_init()
272 	struct jitterentropy *rng = crypto_rng_ctx(tfm);  in jent_kcapi_random()  local
275 	spin_lock(&rng->jent_lock);  in jent_kcapi_random()
277 	ret = jent_read_entropy(rng->entropy_collector, rdata, dlen);  in jent_kcapi_random()
288 			panic("Jitter RNG permanent health test failure\n");  in jent_kcapi_random()
290 		pr_err("Jitter RNG permanent health test failure\n");  in jent_kcapi_random()
294 		pr_warn_ratelimited("Reset Jitter RNG due to intermittent health test failure\n");  in jent_kcapi_random()
301 	spin_unlock(&rng->jent_lock);  in jent_kcapi_random()