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SubjectRe: [PATCH v1] scsi: isci: Don't use PCI helper functions
On Sat, Nov 07, 2020 at 03:34:19PM +0530, Vaibhav Gupta wrote:
> PCI helper functions such as pci_enable/disable_device(),
> pci_save/restore_state(), pci_set_power_state(), etc. were used by the
> legacy framework to perform standard operations related to PCI PM.
>
> This driver is using the generic framework and thus calls for those
> functions should be dropped as those tasks are now performed by the PCI
> core.
>
> Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
> ---
> drivers/scsi/isci/init.c | 18 +-----------------
> 1 file changed, 1 insertion(+), 17 deletions(-)
>
> diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
> index 93bc9019667f..c452849e7bb4 100644
> --- a/drivers/scsi/isci/init.c
> +++ b/drivers/scsi/isci/init.c
> @@ -715,10 +715,6 @@ static int isci_suspend(struct device *dev)
> isci_host_deinit(ihost);
> }
>
> - pci_save_state(pdev);
> - pci_disable_device(pdev);
> - pci_set_power_state(pdev, PCI_D3hot);
> -
> return 0;
> }
>
> @@ -726,19 +722,7 @@ static int isci_resume(struct device *dev)
> {
> struct pci_dev *pdev = to_pci_dev(dev);
> struct isci_host *ihost;
> - int rc, i;
> -
> - pci_set_power_state(pdev, PCI_D0);
> - pci_restore_state(pdev);
> -
> - rc = pcim_enable_device(pdev);
> - if (rc) {
> - dev_err(&pdev->dev,
> - "enabling device failure after resume(%d)\n", rc);
> - return rc;
> - }
> -
> - pci_set_master(pdev);
> + int i;
>
> for_each_isci_host(i, ihost, pdev) {
> sas_prep_resume_ha(&ihost->sas_ha);
> --
> 2.28.0
>
The patch is compile-tested only.

--Vaibhav

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