libata-link: linkify reset

Make reset methods and related functions deal with ata_link instead of
ata_port.

* ata_do_reset()
* ata_eh_reset()
* all prereset/reset/postreset methods and related functions

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 04048fcf6305..d0cebe16a8ee 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -119,27 +119,28 @@ static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offse
 }
 
 /**
- *      amd_probe_init          -       perform reset handling
- *      @ap: ATA port
+ *      amd_pre_reset           -       perform reset handling
+ *      @link: ATA link
  *      @deadline: deadline jiffies for the operation
  *
  *      Reset sequence checking enable bits to see which ports are
  *      active.
  */
 
-static int amd_pre_reset(struct ata_port *ap, unsigned long deadline)
+static int amd_pre_reset(struct ata_link *link, unsigned long deadline)
 {
         static const struct pci_bits amd_enable_bits[] = {
                 { 0x40, 1, 0x02, 0x02 },
                 { 0x40, 1, 0x01, 0x01 }
         };
 
+        struct ata_port *ap = link->ap;
         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
         if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no]))
                 return -ENOENT;
 
-        return ata_std_prereset(ap, deadline);
+        return ata_std_prereset(link, deadline);
 }
 
 static void amd_error_handler(struct ata_port *ap)
@@ -221,25 +222,26 @@ static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 
 /**
  *      nv_probe_init   -       cable detection
- *      @ap: ATA port
+ *      @lin: ATA link
  *
  *      Perform cable detection. The BIOS stores this in PCI config
  *      space for us.
  */
 
-static int nv_pre_reset(struct ata_port *ap, unsigned long deadline)
+static int nv_pre_reset(struct ata_link *link, unsigned long deadline)
 {
         static const struct pci_bits nv_enable_bits[] = {
                 { 0x50, 1, 0x02, 0x02 },
                 { 0x50, 1, 0x01, 0x01 }
         };
 
+        struct ata_port *ap = link->ap;
         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
         if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no]))
                 return -ENOENT;
 
-        return ata_std_prereset(ap, deadline);
+        return ata_std_prereset(link, deadline);
 }
 
 static void nv_error_handler(struct ata_port *ap)