libata: remove check_status from non-SFF drivers

Now that all SFF stuff is separated out of core layer, core layer
doesn't call ops->[alt_]check_status().  In fact, no one calls them
for non-SFF drivers anymore.  Kill them.

Signed-off-by: Tejun Heo <htejun@gmail.com>

1 files changed, 2 insertions, 12 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index ad5b6f384ba1..9642a7103cb6 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -247,7 +247,6 @@ static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
 static int ahci_port_start(struct ata_port *ap);
 static void ahci_port_stop(struct ata_port *ap);
 static void ahci_qc_prep(struct ata_queued_cmd *qc);
-static u8 ahci_check_status(struct ata_port *ap);
 static void ahci_freeze(struct ata_port *ap);
 static void ahci_thaw(struct ata_port *ap);
 static void ahci_pmp_attach(struct ata_port *ap);
@@ -292,9 +291,6 @@ static struct scsi_host_template ahci_sht = {
 static struct ata_port_operations ahci_ops = {
         .inherits               = &sata_pmp_port_ops,
 
-        .sff_check_status       = ahci_check_status,
-        .sff_check_altstatus    = ahci_check_status,
-
         .qc_defer               = sata_pmp_qc_defer_cmd_switch,
         .qc_prep                = ahci_qc_prep,
         .qc_issue               = ahci_qc_issue,
@@ -1185,11 +1181,12 @@ static int ahci_kick_engine(struct ata_port *ap, int force_restart)
 {
         void __iomem *port_mmio = ap->ioaddr.cmd_addr;
         struct ahci_host_priv *hpriv = ap->host->private_data;
+        u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF;
         u32 tmp;
         int busy, rc;
 
         /* do we need to kick the port? */
-        busy = ahci_check_status(ap) & (ATA_BUSY | ATA_DRQ);
+        busy = status & (ATA_BUSY | ATA_DRQ);
         if (!busy && !force_restart)
                 return 0;
 
@@ -1466,13 +1463,6 @@ static int ahci_pmp_softreset(struct ata_link *link, unsigned int *class,
         return ahci_do_softreset(link, class, link->pmp, deadline);
 }
 
-static u8 ahci_check_status(struct ata_port *ap)
-{
-        void __iomem *mmio = ap->ioaddr.cmd_addr;
-
-        return readl(mmio + PORT_TFDATA) & 0xFF;
-}
-
 static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
 {
         struct scatterlist *sg;