diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index cce26a8..18e623e 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -367,8 +367,7 @@ struct smb_version_operations {
 	void (*set_lease_key)(struct inode *, struct cifs_fid *fid);
 	/* generate new lease key */
 	void (*new_lease_key)(struct cifs_fid *fid);
-	/* The next two functions will need to be changed to per smb session */
-	void (*generate_signingkey)(struct TCP_Server_Info *server);
+	int (*generate_signingkey)(struct cifs_ses *);
 	int (*calc_signature)(struct smb_rqst *rqst,
 				   struct TCP_Server_Info *server);
 	int (*query_mf_symlink)(const unsigned char *path, char *pbuf,
@@ -549,7 +548,6 @@ struct TCP_Server_Info {
 	int timeAdj;  /* Adjust for difference in server time zone in sec */
 	__u64 CurrentMid;         /* multiplex id - rotating counter */
 	char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */
-	char smb3signingkey[SMB3_SIGN_KEY_SIZE]; /* for signing smb3 packets */
 	/* 16th byte of RFC1001 workstation name is always null */
 	char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
 	__u32 sequence_number; /* for signing, protected by srv_mutex */
@@ -732,6 +730,7 @@ struct cifs_ses {
 	bool need_reconnect:1; /* connection reset, uid now invalid */
 #ifdef CONFIG_CIFS_SMB2
 	__u16 session_flags;
+	char smb3signingkey[SMB3_SIGN_KEY_SIZE]; /* for signing smb3 packets */
 #endif /* CONFIG_CIFS_SMB2 */
 };
 
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index b29a012..e0b2826 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -435,7 +435,7 @@ extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 extern int calc_seckey(struct cifs_ses *);
-extern void generate_smb3signingkey(struct TCP_Server_Info *);
+extern int generate_smb3signingkey(struct cifs_ses *);
 
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 extern int calc_lanman_hash(const char *password, const char *cryptkey,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 28083b4..6385482 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -639,11 +639,20 @@ ssetup_exit:
 
 	if (!rc) {
 		mutex_lock(&server->srv_mutex);
+		if (server->sign && server->ops->generate_signingkey) {
+			rc = server->ops->generate_signingkey(ses);
+			kfree(ses->auth_key.response);
+			ses->auth_key.response = NULL;
+			if (rc) {
+				cifs_dbg(FYI,
+					"SMB3 session key generation failed\n");
+				mutex_unlock(&server->srv_mutex);
+				goto keygen_exit;
+			}
+		}
 		if (!server->session_estab) {
 			server->sequence_number = 0x2;
 			server->session_estab = true;
-			if (server->ops->generate_signingkey)
-				server->ops->generate_signingkey(server);
 		}
 		mutex_unlock(&server->srv_mutex);
 
@@ -654,6 +663,7 @@ ssetup_exit:
 		spin_unlock(&GlobalMid_Lock);
 	}
 
+keygen_exit:
 	if (!server->sign) {
 		kfree(ses->auth_key.response);
 		ses->auth_key.response = NULL;
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 4f2300d..340abca 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -114,6 +114,23 @@ smb3_crypto_shash_allocate(struct TCP_Server_Info *server)
 	return 0;
 }
 
+static struct cifs_ses *
+smb2_find_smb_ses(struct smb2_hdr *smb2hdr, struct TCP_Server_Info *server)
+{
+	struct cifs_ses *ses;
+
+	spin_lock(&cifs_tcp_ses_lock);
+	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+		if (ses->Suid != smb2hdr->SessionId)
+			continue;
+		spin_unlock(&cifs_tcp_ses_lock);
+		return ses;
+	}
+	spin_unlock(&cifs_tcp_ses_lock);
+
+	return NULL;
+}
+
 
 int
 smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
@@ -124,6 +141,13 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
 	struct kvec *iov = rqst->rq_iov;
 	int n_vec = rqst->rq_nvec;
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
+	struct cifs_ses *ses;
+
+	ses = smb2_find_smb_ses(smb2_pdu, server);
+	if (!ses) {
+		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
+		return 0;
+	}
 
 	memset(smb2_signature, 0x0, SMB2_HMACSHA256_SIZE);
 	memset(smb2_pdu->Signature, 0x0, SMB2_SIGNATURE_SIZE);
@@ -135,7 +159,7 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
 	}
 
 	rc = crypto_shash_setkey(server->secmech.hmacsha256,
-		server->session_key.response, SMB2_NTLMV2_SESSKEY_SIZE);
+		ses->auth_key.response, SMB2_NTLMV2_SESSKEY_SIZE);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
 		return rc;
@@ -198,8 +222,8 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
 	return rc;
 }
 
-void
-generate_smb3signingkey(struct TCP_Server_Info *server)
+int
+generate_smb3signingkey(struct cifs_ses *ses)
 {
 	unsigned char zero = 0x0;
 	__u8 i[4] = {0, 0, 0, 1};
@@ -209,90 +233,99 @@ generate_smb3signingkey(struct TCP_Server_Info *server)
 	unsigned char *hashptr = prfhash;
 
 	memset(prfhash, 0x0, SMB2_HMACSHA256_SIZE);
-	memset(server->smb3signingkey, 0x0, SMB3_SIGNKEY_SIZE);
+	memset(ses->smb3signingkey, 0x0, SMB3_SIGNKEY_SIZE);
 
-	rc = smb3_crypto_shash_allocate(server);
+	rc = smb3_crypto_shash_allocate(ses->server);
 	if (rc) {
 		cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_setkey(server->secmech.hmacsha256,
-		server->session_key.response, SMB2_NTLMV2_SESSKEY_SIZE);
+	rc = crypto_shash_setkey(ses->server->secmech.hmacsha256,
+		ses->auth_key.response, SMB2_NTLMV2_SESSKEY_SIZE);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not set with session key\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_init(&server->secmech.sdeschmacsha256->shash);
+	rc = crypto_shash_init(&ses->server->secmech.sdeschmacsha256->shash);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not init sign hmac\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_update(&server->secmech.sdeschmacsha256->shash,
+	rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
 				i, 4);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with n\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_update(&server->secmech.sdeschmacsha256->shash,
+	rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
 				"SMB2AESCMAC", 12);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with label\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_update(&server->secmech.sdeschmacsha256->shash,
+	rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
 				&zero, 1);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with zero\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_update(&server->secmech.sdeschmacsha256->shash,
+	rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
 				"SmbSign", 8);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with context\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_update(&server->secmech.sdeschmacsha256->shash,
+	rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
 				L, 4);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with L\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	rc = crypto_shash_final(&server->secmech.sdeschmacsha256->shash,
+	rc = crypto_shash_final(&ses->server->secmech.sdeschmacsha256->shash,
 				hashptr);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not generate sha256 hash\n", __func__);
 		goto smb3signkey_ret;
 	}
 
-	memcpy(server->smb3signingkey, hashptr, SMB3_SIGNKEY_SIZE);
+	memcpy(ses->smb3signingkey, hashptr, SMB3_SIGNKEY_SIZE);
 
 smb3signkey_ret:
-	return;
+	return rc;
 }
 
 int
 smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
 {
-	int i, rc;
+	int i;
+	int rc = 0;
 	unsigned char smb3_signature[SMB2_CMACAES_SIZE];
 	unsigned char *sigptr = smb3_signature;
 	struct kvec *iov = rqst->rq_iov;
 	int n_vec = rqst->rq_nvec;
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
+	struct cifs_ses *ses;
+
+	ses = smb2_find_smb_ses(smb2_pdu, server);
+	if (!ses) {
+		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
+		return 0;
+	}
 
 	memset(smb3_signature, 0x0, SMB2_CMACAES_SIZE);
 	memset(smb2_pdu->Signature, 0x0, SMB2_SIGNATURE_SIZE);
 
 	rc = crypto_shash_setkey(server->secmech.cmacaes,
-		server->smb3signingkey, SMB2_CMACAES_SIZE);
+		ses->smb3signingkey, SMB2_CMACAES_SIZE);
+
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not set key for cmac aes\n", __func__);
 		return rc;
@@ -389,6 +422,7 @@ smb2_verify_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)rqst->rq_iov[0].iov_base;
 
 	if ((smb2_pdu->Command == SMB2_NEGOTIATE) ||
+	    (smb2_pdu->Command == SMB2_SESSION_SETUP) ||
 	    (smb2_pdu->Command == SMB2_OPLOCK_BREAK) ||
 	    (!server->session_estab))
 		return 0;
