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| author | Tejun Heo <htejun@gmail.com> | 2008-03-25 12:22:49 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 15:44:17 -0400 |
| commit | 887125e3740283be25564bfc6fb5d24974b651ab (patch) | |
| tree | bd037e1c17a468fabe1834e707b70b4b43513e4a /drivers/ata/pata_sis.c | |
| parent | 1bd5b715a305f6f13455e89becbd839010dd14b5 (diff) | |
| download | linux-887125e3740283be25564bfc6fb5d24974b651ab.tar.bz2 | |
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_sis.c')
| -rw-r--r-- | drivers/ata/pata_sis.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c index 32be13ba5f06..28abfc26e7a4 100644 --- a/drivers/ata/pata_sis.c +++ b/drivers/ata/pata_sis.c @@ -690,8 +690,7 @@ static void sis_fixup(struct pci_dev *pdev, struct sis_chipset *sis) static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; - struct ata_port_info port; - const struct ata_port_info *ppi[] = { &port, NULL }; + const struct ata_port_info *ppi[] = { NULL, NULL }; struct pci_dev *host = NULL; struct sis_chipset *chipset = NULL; struct sis_chipset *sets; @@ -831,12 +830,11 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (chipset == NULL) return -ENODEV; - port = *chipset->info; - port.private_data = chipset; + ppi[0] = chipset->info; sis_fixup(pdev, chipset); - return ata_pci_init_one(pdev, ppi, &sis_sht); + return ata_pci_init_one(pdev, ppi, &sis_sht, chipset); } static const struct pci_device_id sis_pci_tbl[] = { |