[PATCH] ahci: kill AHCI_FLAG_RESET_NEEDS_CLO

Now that ahci_softreset() is fixed to automatically perform CLO if
BSY/DRQ is set on entry, AHCI_FLAG_RESET_NEEDS_CLO is redundant.  Kill
it.

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

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index bddb14e91d3cf22596287c38deeb92ab083e2dcd..413270b2c794dd95ceb18234462c7557b89a9f48 100644 (file)
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -167,9 +167,8 @@ enum {
        AHCI_FLAG_MSI           = (1 << 0),
 
        /* ap->flags bits */
-       AHCI_FLAG_RESET_NEEDS_CLO       = (1 << 24),
-       AHCI_FLAG_NO_NCQ                = (1 << 25),
-       AHCI_FLAG_IGN_IRQ_IF_ERR        = (1 << 26), /* ignore IRQ_IF_ERR */
+       AHCI_FLAG_NO_NCQ                = (1 << 24),
+       AHCI_FLAG_IGN_IRQ_IF_ERR        = (1 << 25), /* ignore IRQ_IF_ERR */
 };
 
 struct ahci_cmd_hdr {
@@ -291,8 +290,7 @@ static const struct ata_port_info ahci_port_info[] = {
                .sht            = &ahci_sht,
                .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
                                  ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
-                                 ATA_FLAG_SKIP_D2H_BSY |
-                                 AHCI_FLAG_RESET_NEEDS_CLO | AHCI_FLAG_NO_NCQ,
+                                 ATA_FLAG_SKIP_D2H_BSY | AHCI_FLAG_NO_NCQ,
                .pio_mask       = 0x1f, /* pio0-4 */
                .udma_mask      = 0x7f, /* udma0-6 ; FIXME */
                .port_ops       = &ahci_ops,
@@ -729,17 +727,6 @@ static int ahci_clo(struct ata_port *ap)
        return 0;
 }
 
-static int ahci_prereset(struct ata_port *ap)
-{
-       if ((ap->flags & AHCI_FLAG_RESET_NEEDS_CLO) &&
-           (ata_busy_wait(ap, ATA_BUSY, 1000) & ATA_BUSY)) {
-               /* ATA_BUSY hasn't cleared, so send a CLO */
-               ahci_clo(ap);
-       }
-
-       return ata_std_prereset(ap);
-}
-
 static int ahci_softreset(struct ata_port *ap, unsigned int *class)
 {
        struct ahci_port_priv *pp = ap->private_data;
@@ -1196,7 +1183,7 @@ static void ahci_error_handler(struct ata_port *ap)
        }
 
        /* perform recovery */
-       ata_do_eh(ap, ahci_prereset, ahci_softreset, ahci_hardreset,
+       ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_hardreset,
                  ahci_postreset);
 }