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Commit 978c0666 authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik
Browse files

libata: Remove excess delay in the tf_load path 



We don't need to stall and wait after loading the task file and before
issuing a command, so don't do it. This shows up on profiles and is not
needed.

Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 95cc2c70

drivers/ata/libata-sff.c

+0 −3
Original line number Diff line number Diff line
@@ -604,7 +604,6 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 
		if (ioaddr->ctl_addr)

			iowrite8(tf->ctl, ioaddr->ctl_addr);

		ap->last_ctl = tf->ctl;

		ata_wait_idle(ap);

	}



	if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
@@ -640,8 +639,6 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 
		iowrite8(tf->device, ioaddr->device_addr);

		VPRINTK("device 0x%X\n", tf->device);

	}



	ata_wait_idle(ap);

}

EXPORT_SYMBOL_GPL(ata_sff_tf_load);

drivers/ata/pata_via.c

+0 −2
Original line number Diff line number Diff line
@@ -417,8 +417,6 @@ static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 
			tf->lbam,

			tf->lbah);

	}



	ata_wait_idle(ap);

}



static int via_port_start(struct ata_port *ap)