From e99f8b5efe78110e4af10f35ebf11feeef8f43b6 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Tue, 8 Nov 2005 14:09:44 +0000
Subject: [PATCH] [PATCH] libata: propogate host private data from probe
function
This will let me chop the code size of several drivers right down. In
many cases the actual private data is very useful and constant for a
given host controller so being able to just pass it at probe time would
be very useful indeed (eg with the via driver would could pass the udma
clocking and reduce the code size, or with the AMD one the UDMA
multiplier and the offset)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
drivers/scsi/libata-core.c | 2 ++
include/linux/libata.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index a74b4071a662f..e51d9a8a2796f 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -4563,6 +4563,7 @@ ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = SA_SHIRQ;
+ probe_ent->private_data = port[0]->private_data;
if (ports & ATA_PORT_PRIMARY) {
probe_ent->port[p].cmd_addr = pci_resource_start(pdev, 0);
@@ -4599,6 +4600,7 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, stru
probe_ent->legacy_mode = 1;
probe_ent->n_ports = 1;
probe_ent->hard_port_no = port_num;
+ probe_ent->private_data = port->private_data;
switch(port_num)
{
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a5390313c7b44..1464a7586de84 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -405,6 +405,7 @@ struct ata_port_info {
unsigned long mwdma_mask;
unsigned long udma_mask;
const struct ata_port_operations *port_ops;
+ void *private_data;
};
struct ata_timing {
--
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