iscsi-target: Make buf param of iscsit_do_crypto_hash_buf() const void *

Make the "buf" input param of iscsit_do_crypto_hash_buf() "const void *".
This allows to remove lots of casts in its callers.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index c230eac..262ef1f 100644 (file)
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1250,7 +1250,7 @@ static u32 iscsit_do_crypto_hash_sg(
 
 static void iscsit_do_crypto_hash_buf(
        struct hash_desc *hash,
-       unsigned char *buf,
+       const void *buf,
        u32 payload_length,
        u32 padding,
        u8 *pad_bytes,
@@ -2524,9 +2524,8 @@ static int iscsit_send_conn_drop_async_message(
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                cmd->tx_size += ISCSI_CRC_LEN;
                pr_debug("Attaching CRC32C HeaderDigest to"
@@ -2662,9 +2661,8 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)cmd->pdu, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                iov[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -2841,9 +2839,8 @@ iscsit_send_logout(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)&cmd->pdu[0], ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, &cmd->pdu[0],
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                iov[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -2900,9 +2897,8 @@ static int iscsit_send_unsolicited_nopin(
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                tx_size += ISCSI_CRC_LEN;
                pr_debug("Attaching CRC32C HeaderDigest to"
@@ -2949,9 +2945,8 @@ iscsit_send_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                iov[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -3040,9 +3035,8 @@ static int iscsit_send_r2t(
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -3256,9 +3250,8 @@ static int iscsit_send_response(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)cmd->pdu, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                iov[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -3329,9 +3322,8 @@ iscsit_send_task_mgt_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -3504,9 +3496,8 @@ static int iscsit_send_text_rsp(
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                iov[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -3574,9 +3565,8 @@ static int iscsit_send_reject(
        if (conn->conn_ops->HeaderDigest) {
                u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)hdr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)header_digest);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                iov[0].iov_len += ISCSI_CRC_LEN;
                tx_size += ISCSI_CRC_LEN;
@@ -3585,9 +3575,8 @@ static int iscsit_send_reject(
        }
 
        if (conn->conn_ops->DataDigest) {
-               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                               (unsigned char *)cmd->buf_ptr, ISCSI_HDR_LEN,
-                               0, NULL, (u8 *)&cmd->data_crc);
+               iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->buf_ptr,
+                               ISCSI_HDR_LEN, 0, NULL, (u8 *)&cmd->data_crc);
 
                iov[iov_count].iov_base = &cmd->data_crc;
                iov[iov_count++].iov_len  = ISCSI_CRC_LEN;