Commit c8a2ba3f authored by Yijing Wang's avatar Yijing Wang Committed by James Bottomley
Browse files

[SCSI] pm8001: use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM) 



Pci core has been saved pm cap register offset by pdev->pm_cap in
pci_pm_init() in init path. So we can use pdev->pm_cap instead of using
pci_find_capability(pdev, PCI_CAP_ID_PM) for better performance and simplified
code.

Tested-by: default avatarLindar Liu <lindar_liu@usish.com>
Signed-off-by: default avatarYijing Wang <wangyijing@huawei.com>
Acked-by: default avatarLindar Liu <lindar_liu@usish.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 7a6a731b

drivers/scsi/pm8001/pm8001_init.c

+3 −4
Original line number Diff line number Diff line
@@ -912,14 +912,13 @@ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state) 
{

	struct sas_ha_struct *sha = pci_get_drvdata(pdev);

	struct pm8001_hba_info *pm8001_ha;

	int i , pos;

	int i;

	u32 device_state;

	pm8001_ha = sha->lldd_ha;

	flush_workqueue(pm8001_wq);

	scsi_block_requests(pm8001_ha->shost);

	pos = pci_find_capability(pdev, PCI_CAP_ID_PM);

	if (pos == 0) {

		printk(KERN_ERR " PCI PM not supported\n");

	if (!pdev->pm_cap) {

		dev_err(&pdev->dev, " PCI PM not supported\n");

		return -ENODEV;

	}

	PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);

CRA Git | Maintained and supported by SUSTech CRA and CCSE