Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto update from Herbert Xu:
 "API:

   - Crypto self tests can now be disabled at boot/run time.
   - Add async support to algif_aead.

  Algorithms:

   - A large number of fixes to MPI from Nicolai Stange.
   - Performance improvement for HMAC DRBG.

  Drivers:

   - Use generic crypto engine in omap-des.
   - Merge ppc4xx-rng and crypto4xx drivers.
   - Fix lockups in sun4i-ss driver by disabling IRQs.
   - Add DMA engine support to ccp.
   - Reenable talitos hash algorithms.
   - Add support for Hisilicon SoC RNG.
   - Add basic crypto driver for the MXC SCC.

  Others:

   - Do not allocate crypto hash tfm in NORECLAIM context in ecryptfs"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits)
  crypto: qat - change the adf_ctl_stop_devices to void
  crypto: caam - fix caam_jr_alloc() ret code
  crypto: vmx - comply with ABIs that specify vrsave as reserved.
  crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime.
  crypto: ccp - constify ccp_actions structure
  crypto: marvell/cesa - Use dma_pool_zalloc
  crypto: qat - make adf_vf_isr.c dependant on IOV config
  crypto: qat - Fix typo in comments
  lib: asn1_decoder - add MODULE_LICENSE("GPL")
  crypto: omap-sham - Use dma_request_chan() for requesting DMA channel
  crypto: omap-des - Use dma_request_chan() for requesting DMA channel
  crypto: omap-aes - Use dma_request_chan() for requesting DMA channel
  crypto: omap-des - Integrate with the crypto engine framework
  crypto: s5p-sss - fix incorrect usage of scatterlists api
  crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks
  crypto: s5p-sss - Use common BIT macro
  crypto: mxc-scc - fix unwinding in mxc_scc_crypto_register()
  crypto: mxc-scc - signedness bugs in mxc_scc_ablkcipher_req_init()
  crypto: talitos - fix ahash algorithms registration
  crypto: ccp - Ensure all dependencies are specified
  ...

5 files changed, 273 insertions, 46 deletions

diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 147069c..80a0f1a 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -13,7 +13,7 @@
  * any later version.
  */
 
-#include <crypto/aead.h>
+#include <crypto/internal/aead.h>
 #include <crypto/scatterwalk.h>
 #include <crypto/if_alg.h>
 #include <linux/init.h>
@@ -29,15 +29,24 @@ struct aead_sg_list {
 	struct scatterlist sg[ALG_MAX_PAGES];
 };
 
+struct aead_async_rsgl {
+	struct af_alg_sgl sgl;
+	struct list_head list;
+};
+
+struct aead_async_req {
+	struct scatterlist *tsgl;
+	struct aead_async_rsgl first_rsgl;
+	struct list_head list;
+	struct kiocb *iocb;
+	unsigned int tsgls;
+	char iv[];
+};
+
 struct aead_ctx {
 	struct aead_sg_list tsgl;
-	/*
-	 * RSGL_MAX_ENTRIES is an artificial limit where user space at maximum
-	 * can cause the kernel to allocate RSGL_MAX_ENTRIES * ALG_MAX_PAGES
-	 * pages
-	 */
-#define RSGL_MAX_ENTRIES ALG_MAX_PAGES
-	struct af_alg_sgl rsgl[RSGL_MAX_ENTRIES];
+	struct aead_async_rsgl first_rsgl;
+	struct list_head list;
 
 	void *iv;
 
@@ -75,6 +84,17 @@ static inline bool aead_sufficient_data(struct aead_ctx *ctx)
 	return ctx->used >= ctx->aead_assoclen + as;
 }
 
+static void aead_reset_ctx(struct aead_ctx *ctx)
+{
+	struct aead_sg_list *sgl = &ctx->tsgl;
+
+	sg_init_table(sgl->sg, ALG_MAX_PAGES);
+	sgl->cur = 0;
+	ctx->used = 0;
+	ctx->more = 0;
+	ctx->merge = 0;
+}
+
 static void aead_put_sgl(struct sock *sk)
 {
 	struct alg_sock *ask = alg_sk(sk);
@@ -90,11 +110,7 @@ static void aead_put_sgl(struct sock *sk)
 		put_page(sg_page(sg + i));
 		sg_assign_page(sg + i, NULL);
 	}
-	sg_init_table(sg, ALG_MAX_PAGES);
-	sgl->cur = 0;
-	ctx->used = 0;
-	ctx->more = 0;
-	ctx->merge = 0;
+	aead_reset_ctx(ctx);
 }
 
 static void aead_wmem_wakeup(struct sock *sk)
@@ -349,23 +365,188 @@ unlock:
 	return err ?: size;
 }
 
-static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored, int flags)
+#define GET_ASYM_REQ(req, tfm) (struct aead_async_req *) \
+		((char *)req + sizeof(struct aead_request) + \
+		 crypto_aead_reqsize(tfm))
+
+ #define GET_REQ_SIZE(tfm) sizeof(struct aead_async_req) + \
+	crypto_aead_reqsize(tfm) + crypto_aead_ivsize(tfm) + \
+	sizeof(struct aead_request)
+
+static void aead_async_cb(struct crypto_async_request *_req, int err)
+{
+	struct sock *sk = _req->data;
+	struct alg_sock *ask = alg_sk(sk);
+	struct aead_ctx *ctx = ask->private;
+	struct crypto_aead *tfm = crypto_aead_reqtfm(&ctx->aead_req);
+	struct aead_request *req = aead_request_cast(_req);
+	struct aead_async_req *areq = GET_ASYM_REQ(req, tfm);
+	struct scatterlist *sg = areq->tsgl;
+	struct aead_async_rsgl *rsgl;
+	struct kiocb *iocb = areq->iocb;
+	unsigned int i, reqlen = GET_REQ_SIZE(tfm);
+
+	list_for_each_entry(rsgl, &areq->list, list) {
+		af_alg_free_sg(&rsgl->sgl);
+		if (rsgl != &areq->first_rsgl)
+			sock_kfree_s(sk, rsgl, sizeof(*rsgl));
+	}
+
+	for (i = 0; i < areq->tsgls; i++)
+		put_page(sg_page(sg + i));
+
+	sock_kfree_s(sk, areq->tsgl, sizeof(*areq->tsgl) * areq->tsgls);
+	sock_kfree_s(sk, req, reqlen);
+	__sock_put(sk);
+	iocb->ki_complete(iocb, err, err);
+}
+
+static int aead_recvmsg_async(struct socket *sock, struct msghdr *msg,
+			      int flags)
+{
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+	struct aead_ctx *ctx = ask->private;
+	struct crypto_aead *tfm = crypto_aead_reqtfm(&ctx->aead_req);
+	struct aead_async_req *areq;
+	struct aead_request *req = NULL;
+	struct aead_sg_list *sgl = &ctx->tsgl;
+	struct aead_async_rsgl *last_rsgl = NULL, *rsgl;
+	unsigned int as = crypto_aead_authsize(tfm);
+	unsigned int i, reqlen = GET_REQ_SIZE(tfm);
+	int err = -ENOMEM;
+	unsigned long used;
+	size_t outlen;
+	size_t usedpages = 0;
+
+	lock_sock(sk);
+	if (ctx->more) {
+		err = aead_wait_for_data(sk, flags);
+		if (err)
+			goto unlock;
+	}
+
+	used = ctx->used;
+	outlen = used;
+
+	if (!aead_sufficient_data(ctx))
+		goto unlock;
+
+	req = sock_kmalloc(sk, reqlen, GFP_KERNEL);
+	if (unlikely(!req))
+		goto unlock;
+
+	areq = GET_ASYM_REQ(req, tfm);
+	memset(&areq->first_rsgl, '\0', sizeof(areq->first_rsgl));
+	INIT_LIST_HEAD(&areq->list);
+	areq->iocb = msg->msg_iocb;
+	memcpy(areq->iv, ctx->iv, crypto_aead_ivsize(tfm));
+	aead_request_set_tfm(req, tfm);
+	aead_request_set_ad(req, ctx->aead_assoclen);
+	aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+				  aead_async_cb, sk);
+	used -= ctx->aead_assoclen + (ctx->enc ? as : 0);
+
+	/* take over all tx sgls from ctx */
+	areq->tsgl = sock_kmalloc(sk, sizeof(*areq->tsgl) * sgl->cur,
+				  GFP_KERNEL);
+	if (unlikely(!areq->tsgl))
+		goto free;
+
+	sg_init_table(areq->tsgl, sgl->cur);
+	for (i = 0; i < sgl->cur; i++)
+		sg_set_page(&areq->tsgl[i], sg_page(&sgl->sg[i]),
+			    sgl->sg[i].length, sgl->sg[i].offset);
+
+	areq->tsgls = sgl->cur;
+
+	/* create rx sgls */
+	while (iov_iter_count(&msg->msg_iter)) {
+		size_t seglen = min_t(size_t, iov_iter_count(&msg->msg_iter),
+				      (outlen - usedpages));
+
+		if (list_empty(&areq->list)) {
+			rsgl = &areq->first_rsgl;
+
+		} else {
+			rsgl = sock_kmalloc(sk, sizeof(*rsgl), GFP_KERNEL);
+			if (unlikely(!rsgl)) {
+				err = -ENOMEM;
+				goto free;
+			}
+		}
+		rsgl->sgl.npages = 0;
+		list_add_tail(&rsgl->list, &areq->list);
+
+		/* make one iovec available as scatterlist */
+		err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);
+		if (err < 0)
+			goto free;
+
+		usedpages += err;
+
+		/* chain the new scatterlist with previous one */
+		if (last_rsgl)
+			af_alg_link_sg(&last_rsgl->sgl, &rsgl->sgl);
+
+		last_rsgl = rsgl;
+
+		/* we do not need more iovecs as we have sufficient memory */
+		if (outlen <= usedpages)
+			break;
+
+		iov_iter_advance(&msg->msg_iter, err);
+	}
+	err = -EINVAL;
+	/* ensure output buffer is sufficiently large */
+	if (usedpages < outlen)
+		goto free;
+
+	aead_request_set_crypt(req, areq->tsgl, areq->first_rsgl.sgl.sg, used,
+			       areq->iv);
+	err = ctx->enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
+	if (err) {
+		if (err == -EINPROGRESS) {
+			sock_hold(sk);
+			err = -EIOCBQUEUED;
+			aead_reset_ctx(ctx);
+			goto unlock;
+		} else if (err == -EBADMSG) {
+			aead_put_sgl(sk);
+		}
+		goto free;
+	}
+	aead_put_sgl(sk);
+
+free:
+	list_for_each_entry(rsgl, &areq->list, list) {
+		af_alg_free_sg(&rsgl->sgl);
+		if (rsgl != &areq->first_rsgl)
+			sock_kfree_s(sk, rsgl, sizeof(*rsgl));
+	}
+	if (areq->tsgl)
+		sock_kfree_s(sk, areq->tsgl, sizeof(*areq->tsgl) * areq->tsgls);
+	if (req)
+		sock_kfree_s(sk, req, reqlen);
+unlock:
+	aead_wmem_wakeup(sk);
+	release_sock(sk);
+	return err ? err : outlen;
+}
+
+static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags)
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
 	struct aead_ctx *ctx = ask->private;
 	unsigned as = crypto_aead_authsize(crypto_aead_reqtfm(&ctx->aead_req));
 	struct aead_sg_list *sgl = &ctx->tsgl;
-	unsigned int i = 0;
+	struct aead_async_rsgl *last_rsgl = NULL;
+	struct aead_async_rsgl *rsgl, *tmp;
 	int err = -EINVAL;
 	unsigned long used = 0;
 	size_t outlen = 0;
 	size_t usedpages = 0;
-	unsigned int cnt = 0;
-
-	/* Limit number of IOV blocks to be accessed below */
-	if (msg->msg_iter.nr_segs > RSGL_MAX_ENTRIES)
-		return -ENOMSG;
 
 	lock_sock(sk);
 
@@ -417,21 +598,33 @@ static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored,
 		size_t seglen = min_t(size_t, iov_iter_count(&msg->msg_iter),
 				      (outlen - usedpages));
 
+		if (list_empty(&ctx->list)) {
+			rsgl = &ctx->first_rsgl;
+		} else {
+			rsgl = sock_kmalloc(sk, sizeof(*rsgl), GFP_KERNEL);
+			if (unlikely(!rsgl)) {
+				err = -ENOMEM;
+				goto unlock;
+			}
+		}
+		rsgl->sgl.npages = 0;
+		list_add_tail(&rsgl->list, &ctx->list);
+
 		/* make one iovec available as scatterlist */
-		err = af_alg_make_sg(&ctx->rsgl[cnt], &msg->msg_iter,
-				     seglen);
+		err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);
 		if (err < 0)
 			goto unlock;
 		usedpages += err;
 		/* chain the new scatterlist with previous one */
-		if (cnt)
-			af_alg_link_sg(&ctx->rsgl[cnt-1], &ctx->rsgl[cnt]);
+		if (last_rsgl)
+			af_alg_link_sg(&last_rsgl->sgl, &rsgl->sgl);
+
+		last_rsgl = rsgl;
 
 		/* we do not need more iovecs as we have sufficient memory */
 		if (outlen <= usedpages)
 			break;
 		iov_iter_advance(&msg->msg_iter, err);
-		cnt++;
 	}
 
 	err = -EINVAL;
@@ -440,8 +633,7 @@ static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored,
 		goto unlock;
 
 	sg_mark_end(sgl->sg + sgl->cur - 1);
-
-	aead_request_set_crypt(&ctx->aead_req, sgl->sg, ctx->rsgl[0].sg,
+	aead_request_set_crypt(&ctx->aead_req, sgl->sg, ctx->first_rsgl.sgl.sg,
 			       used, ctx->iv);
 	aead_request_set_ad(&ctx->aead_req, ctx->aead_assoclen);
 
@@ -454,23 +646,35 @@ static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored,
 		/* EBADMSG implies a valid cipher operation took place */
 		if (err == -EBADMSG)
 			aead_put_sgl(sk);
+
 		goto unlock;
 	}
 
 	aead_put_sgl(sk);
-
 	err = 0;
 
 unlock:
-	for (i = 0; i < cnt; i++)
-		af_alg_free_sg(&ctx->rsgl[i]);
-
+	list_for_each_entry_safe(rsgl, tmp, &ctx->list, list) {
+		af_alg_free_sg(&rsgl->sgl);
+		if (rsgl != &ctx->first_rsgl)
+			sock_kfree_s(sk, rsgl, sizeof(*rsgl));
+		list_del(&rsgl->list);
+	}
+	INIT_LIST_HEAD(&ctx->list);
 	aead_wmem_wakeup(sk);
 	release_sock(sk);
 
 	return err ? err : outlen;
 }
 
+static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored,
+			int flags)
+{
+	return (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) ?
+		aead_recvmsg_async(sock, msg, flags) :
+		aead_recvmsg_sync(sock, msg, flags);
+}
+
 static unsigned int aead_poll(struct file *file, struct socket *sock,
 			      poll_table *wait)
 {
@@ -540,6 +744,7 @@ static void aead_sock_destruct(struct sock *sk)
 	unsigned int ivlen = crypto_aead_ivsize(
 				crypto_aead_reqtfm(&ctx->aead_req));
 
+	WARN_ON(atomic_read(&sk->sk_refcnt) != 0);
 	aead_put_sgl(sk);
 	sock_kzfree_s(sk, ctx->iv, ivlen);
 	sock_kfree_s(sk, ctx, ctx->len);
@@ -574,6 +779,7 @@ static int aead_accept_parent(void *private, struct sock *sk)
 	ctx->aead_assoclen = 0;
 	af_alg_init_completion(&ctx->completion);
 	sg_init_table(ctx->tsgl.sg, ALG_MAX_PAGES);
+	INIT_LIST_HEAD(&ctx->list);
 
 	ask->private = ctx;
 
diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c
index 40de03f..bdd0d753 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -237,6 +237,7 @@ int pkcs7_sig_note_digest_algo(void *context, size_t hdrlen,
 		break;
 	case OID_sha224:
 		ctx->sinfo->sig.hash_algo = "sha224";
+		break;
 	default:
 		printk("Unsupported digest algo: %u\n", ctx->last_oid);
 		return -ENOPKG;
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 1b86310..0a3538f 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -592,8 +592,10 @@ static const struct drbg_state_ops drbg_ctr_ops = {
  ******************************************************************/
 
 #if defined(CONFIG_CRYPTO_DRBG_HASH) || defined(CONFIG_CRYPTO_DRBG_HMAC)
-static int drbg_kcapi_hash(struct drbg_state *drbg, const unsigned char *key,
-			   unsigned char *outval, const struct list_head *in);
+static int drbg_kcapi_hash(struct drbg_state *drbg, unsigned char *outval,
+			   const struct list_head *in);
+static void drbg_kcapi_hmacsetkey(struct drbg_state *drbg,
+				  const unsigned char *key);
 static int drbg_init_hash_kernel(struct drbg_state *drbg);
 static int drbg_fini_hash_kernel(struct drbg_state *drbg);
 #endif /* (CONFIG_CRYPTO_DRBG_HASH || CONFIG_CRYPTO_DRBG_HMAC) */
@@ -619,9 +621,11 @@ static int drbg_hmac_update(struct drbg_state *drbg, struct list_head *seed,
 	LIST_HEAD(seedlist);
 	LIST_HEAD(vdatalist);
 
-	if (!reseed)
+	if (!reseed) {
 		/* 10.1.2.3 step 2 -- memset(0) of C is implicit with kzalloc */
 		memset(drbg->V, 1, drbg_statelen(drbg));
+		drbg_kcapi_hmacsetkey(drbg, drbg->C);
+	}
 
 	drbg_string_fill(&seed1, drbg->V, drbg_statelen(drbg));
 	list_add_tail(&seed1.list, &seedlist);
@@ -641,12 +645,13 @@ static int drbg_hmac_update(struct drbg_state *drbg, struct list_head *seed,
 			prefix = DRBG_PREFIX1;
 		/* 10.1.2.2 step 1 and 4 -- concatenation and HMAC for key */
 		seed2.buf = &prefix;
-		ret = drbg_kcapi_hash(drbg, drbg->C, drbg->C, &seedlist);
+		ret = drbg_kcapi_hash(drbg, drbg->C, &seedlist);
 		if (ret)
 			return ret;
+		drbg_kcapi_hmacsetkey(drbg, drbg->C);
 
 		/* 10.1.2.2 step 2 and 5 -- HMAC for V */
-		ret = drbg_kcapi_hash(drbg, drbg->C, drbg->V, &vdatalist);
+		ret = drbg_kcapi_hash(drbg, drbg->V, &vdatalist);
 		if (ret)
 			return ret;
 
@@ -681,7 +686,7 @@ static int drbg_hmac_generate(struct drbg_state *drbg,
 	while (len < buflen) {
 		unsigned int outlen = 0;
 		/* 10.1.2.5 step 4.1 */
-		ret = drbg_kcapi_hash(drbg, drbg->C, drbg->V, &datalist);
+		ret = drbg_kcapi_hash(drbg, drbg->V, &datalist);
 		if (ret)
 			return ret;
 		outlen = (drbg_blocklen(drbg) < (buflen - len)) ?
@@ -796,7 +801,7 @@ static int drbg_hash_df(struct drbg_state *drbg,
 	while (len < outlen) {
 		short blocklen = 0;
 		/* 10.4.1 step 4.1 */
-		ret = drbg_kcapi_hash(drbg, NULL, tmp, entropylist);
+		ret = drbg_kcapi_hash(drbg, tmp, entropylist);
 		if (ret)
 			goto out;
 		/* 10.4.1 step 4.2 */
@@ -874,7 +879,7 @@ static int drbg_hash_process_addtl(struct drbg_state *drbg,
 	list_add_tail(&data1.list, &datalist);
 	list_add_tail(&data2.list, &datalist);
 	list_splice_tail(addtl, &datalist);
-	ret = drbg_kcapi_hash(drbg, NULL, drbg->scratchpad, &datalist);
+	ret = drbg_kcapi_hash(drbg, drbg->scratchpad, &datalist);
 	if (ret)
 		goto out;
 
@@ -907,7 +912,7 @@ static int drbg_hash_hashgen(struct drbg_state *drbg,
 	while (len < buflen) {
 		unsigned int outlen = 0;
 		/* 10.1.1.4 step hashgen 4.1 */
-		ret = drbg_kcapi_hash(drbg, NULL, dst, &datalist);
+		ret = drbg_kcapi_hash(drbg, dst, &datalist);
 		if (ret) {
 			len = ret;
 			goto out;
@@ -956,7 +961,7 @@ static int drbg_hash_generate(struct drbg_state *drbg,
 	list_add_tail(&data1.list, &datalist);
 	drbg_string_fill(&data2, drbg->V, drbg_statelen(drbg));
 	list_add_tail(&data2.list, &datalist);
-	ret = drbg_kcapi_hash(drbg, NULL, drbg->scratchpad, &datalist);
+	ret = drbg_kcapi_hash(drbg, drbg->scratchpad, &datalist);
 	if (ret) {
 		len = ret;
 		goto out;
@@ -1600,14 +1605,20 @@ static int drbg_fini_hash_kernel(struct drbg_state *drbg)
 	return 0;
 }
 
-static int drbg_kcapi_hash(struct drbg_state *drbg, const unsigned char *key,
-			   unsigned char *outval, const struct list_head *in)
+static void drbg_kcapi_hmacsetkey(struct drbg_state *drbg,
+				  const unsigned char *key)
+{
+	struct sdesc *sdesc = (struct sdesc *)drbg->priv_data;
+
+	crypto_shash_setkey(sdesc->shash.tfm, key, drbg_statelen(drbg));
+}
+
+static int drbg_kcapi_hash(struct drbg_state *drbg, unsigned char *outval,
+			   const struct list_head *in)
 {
 	struct sdesc *sdesc = (struct sdesc *)drbg->priv_data;
 	struct drbg_string *input = NULL;
 
-	if (key)
-		crypto_shash_setkey(sdesc->shash.tfm, key, drbg_statelen(drbg));
 	crypto_shash_init(&sdesc->shash);
 	list_for_each_entry(input, in, list)
 		crypto_shash_update(&sdesc->shash, input->buf, input->len);
diff --git a/crypto/lzo.c b/crypto/lzo.c
index 4b3e925..c3f3dd9 100644
--- a/crypto/lzo.c
+++ b/crypto/lzo.c
@@ -32,7 +32,7 @@ static int lzo_init(struct crypto_tfm *tfm)
 	struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
 
 	ctx->lzo_comp_mem = kmalloc(LZO1X_MEM_COMPRESS,
-				    GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+				    GFP_KERNEL | __GFP_NOWARN);
 	if (!ctx->lzo_comp_mem)
 		ctx->lzo_comp_mem = vmalloc(LZO1X_MEM_COMPRESS);
 	if (!ctx->lzo_comp_mem)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 7d4acc4..c727fb0 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -35,6 +35,10 @@
 
 #include "internal.h"
 
+static bool notests;
+module_param(notests, bool, 0644);
+MODULE_PARM_DESC(notests, "disable crypto self-tests");
+
 #ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
 
 /* a perfect nop */
@@ -3885,6 +3889,11 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
 	int j;
 	int rc;
 
+	if (!fips_enabled && notests) {
+		printk_once(KERN_INFO "alg: self-tests disabled\n");
+		return 0;
+	}
+
 	alg_test_descs_check_order();
 
 	if ((type & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_CIPHER) {