Upgrade to 4.4.50-rt62

The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e

where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt

c) One patch has been backported thus revert the patch before applying.

 filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff  |patch -p1 --dry-run

Upstream status: backport

Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>

3 files changed, 59 insertions, 47 deletions

diff --git a/kernel/drivers/crypto/caam/caamalg.c b/kernel/drivers/crypto/caam/caamalg.c
index ea8189f4b..f3307fc38 100644
--- a/kernel/drivers/crypto/caam/caamalg.c
+++ b/kernel/drivers/crypto/caam/caamalg.c
@@ -441,6 +441,9 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
 			       OP_ALG_AAI_CTR_MOD128);
 	const bool is_rfc3686 = alg->caam.rfc3686;
 
+	if (!ctx->authsize)
+		return 0;
+
 	/* NULL encryption / decryption */
 	if (!ctx->enckeylen)
 		return aead_null_set_sh_desc(aead);
@@ -553,7 +556,10 @@ skip_enc:
 
 	/* Read and write assoclen bytes */
 	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
-	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+	if (alg->caam.geniv)
+		append_math_add_imm_u32(desc, VARSEQOUTLEN, REG3, IMM, ivsize);
+	else
+		append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
 
 	/* Skip assoc data */
 	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
@@ -562,6 +568,14 @@ skip_enc:
 	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
 			     KEY_VLF);
 
+	if (alg->caam.geniv) {
+		append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+				LDST_SRCDST_BYTE_CONTEXT |
+				(ctx1_iv_off << LDST_OFFSET_SHIFT));
+		append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO |
+			    (ctx1_iv_off << MOVE_OFFSET_SHIFT) | ivsize);
+	}
+
 	/* Load Counter into CONTEXT1 reg */
 	if (is_rfc3686)
 		append_load_imm_u32(desc, be32_to_cpu(1), LDST_IMM |
@@ -614,7 +628,7 @@ skip_enc:
 		keys_fit_inline = true;
 
 	/* aead_givencrypt shared descriptor */
-	desc = ctx->sh_desc_givenc;
+	desc = ctx->sh_desc_enc;
 
 	/* Note: Context registers are saved. */
 	init_sh_desc_key_aead(desc, ctx, keys_fit_inline, is_rfc3686);
@@ -645,13 +659,13 @@ copy_iv:
 	append_operation(desc, ctx->class2_alg_type |
 			 OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
 
-	/* ivsize + cryptlen = seqoutlen - authsize */
-	append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
-
 	/* Read and write assoclen bytes */
 	append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
 	append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
 
+	/* ivsize + cryptlen = seqoutlen - authsize */
+	append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
+
 	/* Skip assoc data */
 	append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
 
@@ -688,7 +702,9 @@ copy_iv:
 
 	/* Will read cryptlen */
 	append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
-	aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | KEY_VLF |
+			     FIFOLD_TYPE_MSG1OUT2 | FIFOLD_TYPE_LASTBOTH);
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
 
 	/* Write ICV */
 	append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
@@ -697,7 +713,7 @@ copy_iv:
 	ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
 					      desc_bytes(desc),
 					      DMA_TO_DEVICE);
-	if (dma_mapping_error(jrdev, ctx->sh_desc_givenc_dma)) {
+	if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
 		dev_err(jrdev, "unable to map shared descriptor\n");
 		return -ENOMEM;
 	}
@@ -2147,7 +2163,7 @@ static void init_authenc_job(struct aead_request *req,
 
 	init_aead_job(req, edesc, all_contig, encrypt);
 
-	if (ivsize && (is_rfc3686 || !(alg->caam.geniv && encrypt)))
+	if (ivsize && ((is_rfc3686 && encrypt) || !alg->caam.geniv))
 		append_load_as_imm(desc, req->iv, ivsize,
 				   LDST_CLASS_1_CCB |
 				   LDST_SRCDST_BYTE_CONTEXT |
@@ -2534,20 +2550,6 @@ static int aead_decrypt(struct aead_request *req)
 	return ret;
 }
 
-static int aead_givdecrypt(struct aead_request *req)
-{
-	struct crypto_aead *aead = crypto_aead_reqtfm(req);
-	unsigned int ivsize = crypto_aead_ivsize(aead);
-
-	if (req->cryptlen < ivsize)
-		return -EINVAL;
-
-	req->cryptlen -= ivsize;
-	req->assoclen += ivsize;
-
-	return aead_decrypt(req);
-}
-
 /*
  * allocate and map the ablkcipher extended descriptor for ablkcipher
  */
@@ -3207,7 +3209,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -3253,7 +3255,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -3299,7 +3301,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -3345,7 +3347,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -3391,7 +3393,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -3437,7 +3439,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = AES_BLOCK_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -3483,7 +3485,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -3531,7 +3533,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -3579,7 +3581,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -3627,7 +3629,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -3675,7 +3677,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -3723,7 +3725,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES3_EDE_BLOCK_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -3769,7 +3771,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -3815,7 +3817,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -3861,7 +3863,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -3907,7 +3909,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -3953,7 +3955,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -3999,7 +4001,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = DES_BLOCK_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -4048,7 +4050,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = MD5_DIGEST_SIZE,
 		},
@@ -4099,7 +4101,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA1_DIGEST_SIZE,
 		},
@@ -4150,7 +4152,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA224_DIGEST_SIZE,
 		},
@@ -4201,7 +4203,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA256_DIGEST_SIZE,
 		},
@@ -4252,7 +4254,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA384_DIGEST_SIZE,
 		},
@@ -4303,7 +4305,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setkey = aead_setkey,
 			.setauthsize = aead_setauthsize,
 			.encrypt = aead_encrypt,
-			.decrypt = aead_givdecrypt,
+			.decrypt = aead_decrypt,
 			.ivsize = CTR_RFC3686_IV_SIZE,
 			.maxauthsize = SHA512_DIGEST_SIZE,
 		},
@@ -4542,6 +4544,15 @@ static int __init caam_algapi_init(void)
 		if (!aes_inst && (alg_sel == OP_ALG_ALGSEL_AES))
 				continue;
 
+		/*
+		 * Check support for AES modes not available
+		 * on LP devices.
+		 */
+		if ((cha_vid & CHA_ID_LS_AES_MASK) == CHA_ID_LS_AES_LP)
+			if ((alg->class1_alg_type & OP_ALG_AAI_MASK) ==
+			     OP_ALG_AAI_XTS)
+				continue;
+
 		t_alg = caam_alg_alloc(alg);
 		if (IS_ERR(t_alg)) {
 			err = PTR_ERR(t_alg);
diff --git a/kernel/drivers/crypto/caam/caamhash.c b/kernel/drivers/crypto/caam/caamhash.c
index 49106ea42..99d5e11db 100644
--- a/kernel/drivers/crypto/caam/caamhash.c
+++ b/kernel/drivers/crypto/caam/caamhash.c
@@ -1873,6 +1873,7 @@ caam_hash_alloc(struct caam_hash_template *template,
 			 template->name);
 		snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
 			 template->driver_name);
+		t_alg->ahash_alg.setkey = NULL;
 	}
 	alg->cra_module = THIS_MODULE;
 	alg->cra_init = caam_hash_cra_init;
diff --git a/kernel/drivers/crypto/caam/jr.c b/kernel/drivers/crypto/caam/jr.c
index f7e0d8d4c..8f50a02ff 100644
--- a/kernel/drivers/crypto/caam/jr.c
+++ b/kernel/drivers/crypto/caam/jr.c
@@ -248,7 +248,7 @@ static void caam_jr_dequeue(unsigned long devarg)
 struct device *caam_jr_alloc(void)
 {
 	struct caam_drv_private_jr *jrpriv, *min_jrpriv = NULL;
-	struct device *dev = NULL;
+	struct device *dev = ERR_PTR(-ENODEV);
 	int min_tfm_cnt	= INT_MAX;
 	int tfm_cnt;