diff options
| author | Tejun Heo <htejun@gmail.com> | 2008-03-25 06:22:49 +0300 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 23:44:17 +0400 |
| commit | 887125e3740283be25564bfc6fb5d24974b651ab (patch) | |
| tree | bd037e1c17a468fabe1834e707b70b4b43513e4a /include | |
| parent | 1bd5b715a305f6f13455e89becbd839010dd14b5 (diff) | |
| download | linux-887125e3740283be25564bfc6fb5d24974b651ab.tar.xz | |
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 'include')
| -rw-r--r-- | include/linux/libata.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 5494119854de..e7f10a88efe1 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1020,7 +1020,7 @@ struct pci_dev; extern int ata_pci_init_one(struct pci_dev *pdev, const struct ata_port_info * const * ppi, - struct scsi_host_template *sht); + struct scsi_host_template *sht, void *host_priv); extern void ata_pci_remove_one(struct pci_dev *pdev); #ifdef CONFIG_PM extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg); |