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authorTejun Heo <htejun@gmail.com>2008-03-25 12:22:49 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 15:44:17 -0400
commit887125e3740283be25564bfc6fb5d24974b651ab (patch)
treebd037e1c17a468fabe1834e707b70b4b43513e4a /drivers/ata/pata_hpt366.c
parent1bd5b715a305f6f13455e89becbd839010dd14b5 (diff)
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libata: stop overloading port_info->private_data
port_info->private_data is currently used for two purposes - to record private data about the port_info or to specify host->private_data to use when allocating ata_host. This overloading is confusing and counter-intuitive in that port_info->private_data becomes host->private_data instead of port->private_data. In addition, port_info and host don't correspond to each other 1-to-1. Currently, the first non-NULL port_info->private_data is used. This patch makes port_info->private_data just be what it is - private_data for the port_info where LLD can jot down extra info. libata no longer sets host->private_data to the first non-NULL port_info->private_data, @host_priv argument is added to ata_pci_init_one() instead. LLDs which use ata_pci_init_one() can use this argument to pass in pointer to host private data. LLDs which don't should use init-register model anyway and can initialize host->private_data directly. Adding @host_priv instead of using init-register model for LLDs which use ata_pci_init_one() is suggested by Alan Cox. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Diffstat (limited to 'drivers/ata/pata_hpt366.c')
-rw-r--r--drivers/ata/pata_hpt366.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index b62d398..c2d4923 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -356,9 +356,9 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
.udma_mask = ATA_UDMA4,
.port_ops = &hpt366_port_ops
};
- struct ata_port_info info = info_hpt366;
- const struct ata_port_info *ppi[] = { &info, NULL };
+ const struct ata_port_info *ppi[] = { &info_hpt366, NULL };
+ void *hpriv = NULL;
u32 class_rev;
u32 reg1;
int rc;
@@ -383,17 +383,17 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
/* info_hpt366 is safe against re-entry so we can scribble on it */
switch((reg1 & 0x700) >> 8) {
case 5:
- info.private_data = &hpt366_40;
+ hpriv = &hpt366_40;
break;
case 9:
- info.private_data = &hpt366_25;
+ hpriv = &hpt366_25;
break;
default:
- info.private_data = &hpt366_33;
+ hpriv = &hpt366_33;
break;
}
/* Now kick off ATA set up */
- return ata_pci_init_one(dev, ppi, &hpt36x_sht);
+ return ata_pci_init_one(dev, ppi, &hpt36x_sht, hpriv);
}
#ifdef CONFIG_PM