From 22183bf569c8600ff414ac25f23134044e0ef453 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 7 Apr 2008 22:47:20 +0900 Subject: libata: add qc_fill_rtf port operation On command completion, ata_qc_complete() directly called ops->tf_read to fill qc->result_tf. This patch adds ops->qc_fill_rtf to replace hardcoded ops->tf_read usage. ata_sff_qc_fill_rtf() which uses ops->tf_read to fill result_tf is implemented and set in ata_base_port_ops and other ops tables which don't inherit from ata_base_port_ops, so this patch doesn't introduce any behavior change. ops->qc_fill_rtf() is similar to ops->sff_tf_read() but can only be called when a command finishes. As some non-SFF controllers don't have TF registers defined unless they're associated with in-flight commands, this limited operation makes life easier for those drivers and help lifting SFF assumptions from libata core layer. Signed-off-by: Tejun Heo --- drivers/ata/libata-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/ata/libata-core.c') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 51876b93c1b7..3b822124e97e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -74,6 +74,7 @@ const unsigned long sata_deb_timing_hotplug[] = { 25, 500, 2000 }; const unsigned long sata_deb_timing_long[] = { 100, 2000, 5000 }; const struct ata_port_operations ata_base_port_ops = { + .qc_fill_rtf = ata_sff_qc_fill_rtf, .prereset = ata_std_prereset, .postreset = ata_std_postreset, .error_handler = ata_std_error_handler, @@ -4562,7 +4563,7 @@ static void fill_result_tf(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; qc->result_tf.flags = qc->tf.flags; - ap->ops->sff_tf_read(ap, &qc->result_tf); + ap->ops->qc_fill_rtf(qc); } static void ata_verify_xfer(struct ata_queued_cmd *qc) -- cgit v1.2.2