scsi: lpfc: use hdwq assigned cpu for allocation

Looking at the recent conversion from smp_processor_id() to
raw_smp_processor_id(), realized that the allocation should be based on the
cpu the hdwq is bound to, not the executing cpu.

Revise to pull cpu number from the hdwq

Fixes: 765ab6cdac ("scsi: lpfc: Fix a kernel warning triggered by lpfc_get_sgl_per_hdwq()")
Link: https://lore.kernel.org/r/20191116003847.6141-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_sli.c

@@ -20668,7 +20668,7 @@ lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
 		/* allocate more */
 		spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
 		tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
-				   cpu_to_node(raw_smp_processor_id()));
+				   cpu_to_node(hdwq->io_wq->chann));
 		if (!tmp) {
 			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
 					"8353 error kmalloc memory for HDWQ "
@@ -20811,7 +20811,7 @@ lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
 		/* allocate more */
 		spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
 		tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
-				   cpu_to_node(raw_smp_processor_id()));
+				   cpu_to_node(hdwq->io_wq->chann));
 		if (!tmp) {
 			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
 					"8355 error kmalloc memory for HDWQ "