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, 11 insertions, 8 deletions

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 8e63c60adaff..56784ce10544 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -2266,10 +2266,11 @@ comreset_retry:
         VPRINTK("EXIT\n");
 }
 
-static int mv_prereset(struct ata_port *ap, unsigned long deadline)
+static int mv_prereset(struct ata_link *link, unsigned long deadline)
 {
+        struct ata_port *ap = link->ap;
         struct mv_port_priv *pp = ap->private_data;
-        struct ata_eh_context *ehc = &ap->link.eh_context;
+        struct ata_eh_context *ehc = &link->eh_context;
         int rc;
 
         rc = mv_stop_dma(ap);
@@ -2285,7 +2286,7 @@ static int mv_prereset(struct ata_port *ap, unsigned long deadline)
         if (ehc->i.action & ATA_EH_HARDRESET)
                 return 0;
 
-        if (ata_link_online(&ap->link))
+        if (ata_link_online(link))
                 rc = ata_wait_ready(ap, deadline);
         else
                 rc = -ENODEV;
@@ -2293,9 +2294,10 @@ static int mv_prereset(struct ata_port *ap, unsigned long deadline)
         return rc;
 }
 
-static int mv_hardreset(struct ata_port *ap, unsigned int *class,
+static int mv_hardreset(struct ata_link *link, unsigned int *class,
                         unsigned long deadline)
 {
+        struct ata_port *ap = link->ap;
         struct mv_host_priv *hpriv = ap->host->private_data;
         void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
 
@@ -2308,16 +2310,17 @@ static int mv_hardreset(struct ata_port *ap, unsigned int *class,
         return 0;
 }
 
-static void mv_postreset(struct ata_port *ap, unsigned int *classes)
+static void mv_postreset(struct ata_link *link, unsigned int *classes)
 {
+        struct ata_port *ap = link->ap;
         u32 serr;
 
         /* print link status */
-        sata_print_link_status(&ap->link);
+        sata_print_link_status(link);
 
         /* clear SError */
-        sata_scr_read(&ap->link, SCR_ERROR, &serr);
-        sata_scr_write_flush(&ap->link, SCR_ERROR, serr);
+        sata_scr_read(link, SCR_ERROR, &serr);
+        sata_scr_write_flush(link, SCR_ERROR, serr);
 
         /* bail out if no device is present */
         if (classes[0] == ATA_DEV_NONE && classes[1] == ATA_DEV_NONE) {