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authorYijing Wang <wangyijing@huawei.com>2013-06-27 15:02:49 +0800
committerJames Bottomley <JBottomley@Parallels.com>2013-07-05 22:42:43 +0100
commitc8a2ba3f50f7445b3d1b822ba1a8168b4234baca (patch)
tree7397dc02d0c1144ceab4b601a9bd3ddef8a13769 /drivers/scsi
parent7a6a731bd00ca90d0e250867c3b9c05b5ff0fa49 (diff)
downloadblackbird-op-linux-c8a2ba3f50f7445b3d1b822ba1a8168b4234baca.tar.gz
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[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: Lindar Liu <lindar_liu@usish.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Acked-by: Lindar Liu <lindar_liu@usish.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/pm8001/pm8001_init.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index e4b9bc7f5410..3861aa1f4520 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -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);
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