Hello James Smart,
The patch 962bc51b04b2: "[SCSI] lpfc 8.3.37: Provide support for FCoE
protocol dual-chute (ULP) operation" from Jan 3, 2013, leads to the
following warning:
"drivers/scsi/lpfc/lpfc_sli.c:12818 lpfc_wq_create()
warn: 0x800 is larger than 8 bits"
[ This is from a not ready for release Smatch check. ]
drivers/scsi/lpfc/lpfc_sli.c
12818 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
fw_func_mode is unsigned char.
LPFC_DUA_MODE is 0x800.
This condition is always false because 0xff & 0x800 is zero.
12819 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
12820
12821 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12822 /* The IOCTL status is embedded in the mailbox subheader. */
12823 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12824 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12825 if (shdr_status || shdr_add_status || rc) {
12826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12827 "2503 WQ_CREATE mailbox failed with "
12828 "status x%x add_status x%x, mbx status x%x\n",
12829 shdr_status, shdr_add_status, rc);
12830 status = -ENXIO;
12831 goto out;
12832 }
12833 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12834 if (wq->queue_id == 0xFFFF) {
12835 status = -ENXIO;
12836 goto out;
12837 }
12838 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Same.
12839 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
12840 &wq_create->u.response);
12841 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
regards,
dan carpenter
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