712 	WARN_ON(con->v2.hmac_tfm || con->v2.gcm_tfm || con->v2.gcm_req);  in setup_crypto()
727 	con->v2.hmac_tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);  in setup_crypto()
729 	if (IS_ERR(con->v2.hmac_tfm)) {  in setup_crypto()
730 		ret = PTR_ERR(con->v2.hmac_tfm);  in setup_crypto()
731 		con->v2.hmac_tfm = NULL;  in setup_crypto()
737 		crypto_shash_alignmask(con->v2.hmac_tfm));  in setup_crypto()
738 	ret = crypto_shash_setkey(con->v2.hmac_tfm, session_key,  in setup_crypto()
801 	SHASH_DESC_ON_STACK(desc, con->v2.hmac_tfm);  /* tfm arg is ignored */  in hmac_sha256()
806 	     con->v2.hmac_tfm, kvec_cnt);  in hmac_sha256()
808 	if (!con->v2.hmac_tfm) {  in hmac_sha256()
813 	desc->tfm = con->v2.hmac_tfm;  in hmac_sha256()
820 			crypto_shash_alignmask(con->v2.hmac_tfm));  in hmac_sha256()
3818 	if (con->v2.hmac_tfm) {  in ceph_con_v2_reset_protocol()
3819 		crypto_free_shash(con->v2.hmac_tfm);  in ceph_con_v2_reset_protocol()
3820 		con->v2.hmac_tfm = NULL;  in ceph_con_v2_reset_protocol()