i40iw: Replace the obsolete crypto hash interface with shash

This patch replaces the obsolete crypto hash interface with shash
and resolves a build failure after merge of the rdma tree
which is caused by the removal of crypto hash interface

Removing CRYPTO_ALG_ASYNC from crypto_alloc_shash(),
because it is by definition sync only

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Doug Ledford <dledford@redhat.com>

5 files changed, 37 insertions, 21 deletions

diff --git a/drivers/infiniband/hw/i40iw/i40iw.h b/drivers/infiniband/hw/i40iw/i40iw.h
index 19f665137e45..819767681445 100644
--- a/drivers/infiniband/hw/i40iw/i40iw.h
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -52,6 +52,7 @@
 #include <rdma/iw_cm.h>
 #include <rdma/iw_portmap.h>
 #include <rdma/rdma_netlink.h>
+#include <crypto/hash.h>
 
 #include "i40iw_status.h"
 #include "i40iw_osdep.h"
diff --git a/drivers/infiniband/hw/i40iw/i40iw_osdep.h b/drivers/infiniband/hw/i40iw/i40iw_osdep.h
index 4d840a9616e1..7e20493510e8 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_osdep.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_osdep.h
@@ -39,6 +39,7 @@
 #include <linux/string.h>
 #include <linux/bitops.h>
 #include <net/tcp.h>
+#include <crypto/hash.h>
 /* get readq/writeq support for 32 bit kernels, use the low-first version */
 #include <linux/io-64-nonatomic-lo-hi.h>
 
@@ -171,12 +172,12 @@ struct i40iw_hw;
 u8 __iomem *i40iw_get_hw_addr(void *dev);
 void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp);
 enum i40iw_status_code i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev *dev);
-enum i40iw_status_code i40iw_ieq_check_mpacrc(struct hash_desc *desc, void *addr,
+enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc, void *addr,
                                               u32 length, u32 value);
 struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev, struct i40iw_puda_buf *buf);
 void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length, u32 seqnum);
-void i40iw_free_hash_desc(struct hash_desc *);
-enum i40iw_status_code i40iw_init_hash_desc(struct hash_desc *);
+void i40iw_free_hash_desc(struct shash_desc *);
+enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **);
 enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info,
                                                  struct i40iw_puda_buf *buf);
 enum i40iw_status_code i40iw_cqp_sds_cmd(struct i40iw_sc_dev *dev,
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c b/drivers/infiniband/hw/i40iw/i40iw_puda.c
index ae9971f93ecd..8eb400d8a7a0 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_puda.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -729,7 +729,7 @@ void i40iw_puda_dele_resources(struct i40iw_sc_dev *dev,
 
         switch (rsrc->completion) {
         case PUDA_HASH_CRC_COMPLETE:
-                i40iw_free_hash_desc(&rsrc->hash_desc);
+                i40iw_free_hash_desc(rsrc->hash_desc);
         case PUDA_QP_CREATED:
                 do {
                         if (reset)
@@ -1142,7 +1142,7 @@ static enum i40iw_status_code i40iw_ieq_handle_partial(struct i40iw_puda_rsrc *i
         crcptr = txbuf->data + fpdu_len - 4;
         mpacrc = *(u32 *)crcptr;
         if (ieq->check_crc) {
-                status = i40iw_ieq_check_mpacrc(&ieq->hash_desc, txbuf->data,
+                status = i40iw_ieq_check_mpacrc(ieq->hash_desc, txbuf->data,
                                                 (fpdu_len - 4), mpacrc);
                 if (status) {
                         i40iw_debug(ieq->dev, I40IW_DEBUG_IEQ,
@@ -1210,7 +1210,7 @@ static enum i40iw_status_code i40iw_ieq_process_buf(struct i40iw_puda_rsrc *ieq,
                 crcptr = datap + fpdu_len - 4;
                 mpacrc = *(u32 *)crcptr;
                 if (ieq->check_crc)
-                        ret = i40iw_ieq_check_mpacrc(&ieq->hash_desc,
+                        ret = i40iw_ieq_check_mpacrc(ieq->hash_desc,
                                                      datap, fpdu_len - 4, mpacrc);
                 if (ret) {
                         status = I40IW_ERR_MPA_CRC;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.h b/drivers/infiniband/hw/i40iw/i40iw_puda.h
index b689aa41dfe2..52bf7826ce4e 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_puda.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.h
@@ -135,7 +135,7 @@ struct i40iw_puda_rsrc {
         u32 rxq_invalid_cnt;
         u32 tx_wqe_avail_cnt;
         bool check_crc;
-        struct hash_desc hash_desc;
+        struct shash_desc *hash_desc;
         struct list_head txpend;
         struct list_head bufpool;       /* free buffers pool list for recv and xmit */
         u32 alloc_buf_count;
@@ -173,11 +173,11 @@ struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev,
                                      struct i40iw_puda_buf *buf);
 enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info,
                                                  struct i40iw_puda_buf *buf);
-enum i40iw_status_code i40iw_ieq_check_mpacrc(struct hash_desc *desc,
+enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc,
                                               void *addr, u32 length, u32 value);
-enum i40iw_status_code i40iw_init_hash_desc(struct hash_desc *desc);
+enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc);
 void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp);
-void i40iw_free_hash_desc(struct hash_desc *desc);
+void i40iw_free_hash_desc(struct shash_desc *desc);
 void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length,
                                  u32 seqnum);
 #endif
diff --git a/drivers/infiniband/hw/i40iw/i40iw_utils.c b/drivers/infiniband/hw/i40iw/i40iw_utils.c
index 71ee01ff1935..1ceec81bd8eb 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_utils.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_utils.c
@@ -1024,11 +1024,24 @@ void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp)
  * i40iw_init_hash_desc - initialize hash for crc calculation
  * @desc: cryption type
  */
-enum i40iw_status_code i40iw_init_hash_desc(struct hash_desc *desc)
+enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc)
 {
-        desc->tfm = crypto_alloc_hash("crc32c", 0, CRYPTO_ALG_ASYNC);
-        if (IS_ERR(desc->tfm))
+        struct crypto_shash *tfm;
+        struct shash_desc *tdesc;
+
+        tfm = crypto_alloc_shash("crc32c", 0, 0);
+        if (IS_ERR(tfm))
+                return I40IW_ERR_MPA_CRC;
+
+        tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
+                        GFP_KERNEL);
+        if (!tdesc) {
+                crypto_free_shash(tfm);
                 return I40IW_ERR_MPA_CRC;
+        }
+        tdesc->tfm = tfm;
+        *desc = tdesc;
+
         return 0;
 }
 
@@ -1036,9 +1049,12 @@ enum i40iw_status_code i40iw_init_hash_desc(struct hash_desc *desc)
  * i40iw_free_hash_desc - free hash desc
  * @desc: to be freed
  */
-void i40iw_free_hash_desc(struct hash_desc *desc)
+void i40iw_free_hash_desc(struct shash_desc *desc)
 {
-        crypto_free_hash(desc->tfm);
+        if (desc) {
+                crypto_free_shash(desc->tfm);
+                kfree(desc);
+        }
 }
 
 /**
@@ -1065,21 +1081,19 @@ enum i40iw_status_code i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev *dev,
  * @length: length of buffer
  * @value: value to be compared
  */
-enum i40iw_status_code i40iw_ieq_check_mpacrc(struct hash_desc *desc,
+enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc,
                                               void *addr,
                                               u32 length,
                                               u32 value)
 {
-        struct scatterlist sg;
         u32 crc = 0;
         int ret;
         enum i40iw_status_code ret_code = 0;
 
-        crypto_hash_init(desc);
-        sg_init_one(&sg, addr, length);
-        ret = crypto_hash_update(desc, &sg, length);
+        crypto_shash_init(desc);
+        ret = crypto_shash_update(desc, addr, length);
         if (!ret)
-                crypto_hash_final(desc, (u8 *)&crc);
+                crypto_shash_final(desc, (u8 *)&crc);
         if (crc != value) {
                 i40iw_pr_err("mpa crc check fail\n");
                 ret_code = I40IW_ERR_MPA_CRC;