scsi: qla2xxx: Limit interrupt vectors to number of CPUs

Driver created too many QPairs(126) with 28xx adapter.  Limit to the number
of CPUs to minimize wasted resources.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Himanshu Madhani <[email protected]>
Signed-off-by: Quinn Tran <[email protected]>
Signed-off-by: Nilesh Javali <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: Quinn Tran

drivers/scsi/qla2xxx/qla_isr.c

@@ -3952,10 +3952,12 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
 	if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
 		/* user wants to control IRQ setting for target mode */
 		ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
-		    ha->msix_count, PCI_IRQ_MSIX);
+		    min((u16)ha->msix_count, (u16)num_online_cpus()),
+		    PCI_IRQ_MSIX);
 	} else
 		ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
-		    ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
+		    min((u16)ha->msix_count, (u16)num_online_cpus()),
+		    PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
 		    &desc);
 
 	if (ret < 0) {