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SubjectRe: [PATCH V2] AHCI: Workaround for ThunderX Errata#22536
Hello,

On Fri, Feb 12, 2016 at 03:20:30PM -0800, tchalamarla@caviumnetworks.com wrote:
> diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
> index 546a369..76e310e 100644
> --- a/drivers/ata/ahci.c
> +++ b/drivers/ata/ahci.c
> @@ -1560,6 +1560,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
> if (ahci_broken_devslp(pdev))
> hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
>
> + if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
> + ahci_thunderx_init(&pdev->dev, hpriv);

So, this would make ahci fail to build if thunderx is not configured.
Maybe we should add an additional callback to update hpriv.

> /* save initial config */
> ahci_pci_save_initial_config(pdev, hpriv);
>
> diff --git a/drivers/ata/ahci_thunderx.c b/drivers/ata/ahci_thunderx.c

This driver isn't upstream yet, right? Maybe just fold this change
together?

Thanks.

--
tejun

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