scsi: qla4xxx: Convert uses of __constant_cpu_to_<foo> to cpu_to_<foo>

The macros cpu_to_le16() and cpu_to_le32() have special cases for
constants.  Their __constant_<foo> versions are not required.

On little endian systems, both cpu_to_le16() and __constant_cpu_to_le16()
expand to the same expression. Same is the case with cpu_to_le32().

On big endian systems, cpu_to_le16() expands to __swab16() which has a
__builtin_constant_p check. Similarly, cpu_to_le32() expands to __swab32().

Consequently these macros can be safely used with constants, and hence all
those uses are converted. This was discovered as a part of a checkpatch
evaluation, looking at all reports of WARNING:CONSTANT_CONVERSION error
type.

Link: https://lore.kernel.org/r/20210716112852.24598-1-dwaipayanray1@gmail.com
Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index f786ac2..301bc09 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -119,8 +119,8 @@ int qla4xxx_init_rings(struct scsi_qla_host *ha)
                 * the interrupt_handler to think there are responses to be
                 * processed when there aren't.
                 */
-               ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
-               ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
+               ha->shadow_regs->req_q_out = cpu_to_le32(0);
+               ha->shadow_regs->rsp_q_in = cpu_to_le32(0);
                wmb();
 
                writel(0, &ha->reg->req_q_in);

diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index cbd1e6f..c57cec6 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -160,7 +160,7 @@ static void qla4xxx_build_scsi_iocbs(struct srb *srb,
 
        if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
                /* No data being transferred */
-               cmd_entry->ttlByteCnt = __constant_cpu_to_le32(0);
+               cmd_entry->ttlByteCnt = cpu_to_le32(0);
                return;
        }
 

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 187d78a..cd71074 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -645,8 +645,8 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
        /* Fill in the request and response queue information. */
        init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
        init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
-       init_fw_cb->rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
-       init_fw_cb->compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
+       init_fw_cb->rqq_len = cpu_to_le16(REQUEST_QUEUE_DEPTH);
+       init_fw_cb->compq_len = cpu_to_le16(RESPONSE_QUEUE_DEPTH);
        init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
        init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
        init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
@@ -656,20 +656,20 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 
        /* Set up required options. */
        init_fw_cb->fw_options |=
-               __constant_cpu_to_le16(FWOPT_SESSION_MODE |
-                                      FWOPT_INITIATOR_MODE);
+               cpu_to_le16(FWOPT_SESSION_MODE |
+                           FWOPT_INITIATOR_MODE);
 
        if (is_qla80XX(ha))
                init_fw_cb->fw_options |=
-                   __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
+                   cpu_to_le16(FWOPT_ENABLE_CRBDB);
 
-       init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
+       init_fw_cb->fw_options &= cpu_to_le16(~FWOPT_TARGET_MODE);
 
        init_fw_cb->add_fw_options = 0;
        init_fw_cb->add_fw_options |=
-                       __constant_cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
+                       cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
        init_fw_cb->add_fw_options |=
-                       __constant_cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
+                       cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
 
        if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
                != QLA_SUCCESS) {
@@ -1613,7 +1613,7 @@ int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
 
        strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
        strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
-       chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
+       chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE);
 
 exit_get_chap:
        dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
@@ -1655,7 +1655,7 @@ int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password,
        chap_table->secret_len = strlen(password);
        strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN - 1);
        strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN - 1);
-       chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
+       chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE);
 
        if (is_qla40XX(ha)) {
                chap_size = MAX_CHAP_ENTRIES_40XX * sizeof(*chap_table);
@@ -1721,7 +1721,7 @@ int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
 
        mutex_lock(&ha->chap_sem);
        chap_table = (struct ql4_chap_table *)ha->chap_list + chap_index;
-       if (chap_table->cookie != __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
+       if (chap_table->cookie != cpu_to_le16(CHAP_VALID_COOKIE)) {
                rval = QLA_ERROR;
                goto exit_unlock_uni_chap;
        }
@@ -1784,7 +1784,7 @@ int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
        for (i = 0; i < max_chap_entries; i++) {
                chap_table = (struct ql4_chap_table *)ha->chap_list + i;
                if (chap_table->cookie !=
-                   __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
+                   cpu_to_le16(CHAP_VALID_COOKIE)) {
                        if (i > MAX_RESRV_CHAP_IDX && free_index == -1)
                                free_index = i;
                        continue;
@@ -2105,18 +2105,18 @@ int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
 
        if (conn->max_recv_dlength)
                fw_ddb_entry->iscsi_max_rcv_data_seg_len =
-                 __constant_cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
+                 cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
 
        if (sess->max_r2t)
                fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
 
        if (sess->first_burst)
                fw_ddb_entry->iscsi_first_burst_len =
-                      __constant_cpu_to_le16((sess->first_burst / BYTE_UNITS));
+                      cpu_to_le16((sess->first_burst / BYTE_UNITS));
 
        if (sess->max_burst)
                fw_ddb_entry->iscsi_max_burst_len =
-                       __constant_cpu_to_le16((sess->max_burst / BYTE_UNITS));
+                       cpu_to_le16((sess->max_burst / BYTE_UNITS));
 
        if (sess->time2wait)
                fw_ddb_entry->iscsi_def_time2wait =

diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 66a4877..47adff9 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -3658,7 +3658,7 @@ qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
                            "Do ROM fast read failed\n");
                        goto done_read;
                }
-               dwptr[i] = __constant_cpu_to_le32(val);
+               dwptr[i] = cpu_to_le32(val);
        }
 
 done_read:
@@ -3721,9 +3721,9 @@ qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
                        goto no_flash_data;
        }
 
-       if (*wptr == __constant_cpu_to_le16(0xffff))
+       if (*wptr == cpu_to_le16(0xffff))
                goto no_flash_data;
-       if (flt->version != __constant_cpu_to_le16(1)) {
+       if (flt->version != cpu_to_le16(1)) {
                DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
                        "version=0x%x length=0x%x checksum=0x%x.\n",
                        le16_to_cpu(flt->version), le16_to_cpu(flt->length),
@@ -3826,7 +3826,7 @@ qla4_82xx_get_fdt_info(struct scsi_qla_host *ha)
        qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
            hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
 
-       if (*wptr == __constant_cpu_to_le16(0xffff))
+       if (*wptr == cpu_to_le16(0xffff))
                goto no_flash_data;
 
        if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
@@ -3883,7 +3883,7 @@ qla4_82xx_get_idc_param(struct scsi_qla_host *ha)
        qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
                        QLA82XX_IDC_PARAM_ADDR , 8);
 
-       if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
+       if (*wptr == cpu_to_le32(0xffffffff)) {
                ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
                ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
        } else {

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 6ee7ea4..3f77373 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -702,7 +702,7 @@ static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
 
        *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
        if ((*chap_entry)->cookie !=
-            __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
+            cpu_to_le16(CHAP_VALID_COOKIE)) {
                *chap_entry = NULL;
        } else {
                rval = QLA_SUCCESS;
@@ -745,7 +745,7 @@ static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
                chap_table = (struct ql4_chap_table *)ha->chap_list + i;
 
                if ((chap_table->cookie !=
-                   __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
+                   cpu_to_le16(CHAP_VALID_COOKIE)) &&
                   (i > MAX_RESRV_CHAP_IDX)) {
                                free_index = i;
                                break;
@@ -794,7 +794,7 @@ static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
        for (i = chap_tbl_idx; i < max_chap_entries; i++) {
                chap_table = (struct ql4_chap_table *)ha->chap_list + i;
                if (chap_table->cookie !=
-                   __constant_cpu_to_le16(CHAP_VALID_COOKIE))
+                   cpu_to_le16(CHAP_VALID_COOKIE))
                        continue;
 
                chap_rec->chap_tbl_idx = i;
@@ -923,7 +923,7 @@ static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
                goto exit_delete_chap;
        }
 
-       chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
+       chap_table->cookie = cpu_to_le16(0xFFFF);
 
        offset = FLASH_CHAP_OFFSET |
                        (chap_tbl_idx * sizeof(struct ql4_chap_table));
@@ -6043,7 +6043,7 @@ static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username,
        for (i = 0; i < max_chap_entries; i++) {
                chap_table = (struct ql4_chap_table *)ha->chap_list + i;
                if (chap_table->cookie !=
-                   __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
+                   cpu_to_le16(CHAP_VALID_COOKIE)) {
                        continue;
                }