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authorTejun Heo <htejun@gmail.com>2007-04-17 23:44:07 +0900
committerJeff Garzik <jeff@garzik.org>2007-04-28 14:16:03 -0400
commitf31871951b38daf2d7ca17daad59fdb735062da3 (patch)
tree4286402eaf679b6fb73e893d8e51bb693559091d /drivers/ata/libata.h
parentecef7253235e7a9365afe08a508e11bed91c1c11 (diff)
libata: separate out ata_host_alloc() and ata_host_register()
Reorganize ata_host_alloc() and its subroutines into the following three functions. * ata_host_alloc() : allocates host and its ports. shost is not registered automatically. * ata_scsi_add_hosts() : allocates and adds shosts associated with an ATA host. Used by ata_host_register(). * ata_host_register() : takes a fully initialized ata_host structure and registers it to libata layer and probes it. Only ata_host_alloc() and ata_host_register() are exported. ata_device_add() is rewritten using the above functions. This patch does not introduce any observable behavior change. Things worth mentioning. * print_id is assigned at registration time and LLDs are allowed to overallocate ports and reduce host->n_ports during initialization. ata_host_register() will throw away unused ports automatically. * All SCSI host initialization stuff now resides in ata_scsi_add_hosts() in libata-scsi.c, where it should be. * ipr is now the only user of ata_host_init(). Either kill it by converting ipr to use ata_host_alloc() and friends or rename and move it to libata-scsi.c Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata.h')
-rw-r--r--drivers/ata/libata.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 1f1e3a51f859..b4d5253d627a 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -52,6 +52,7 @@ enum {
ATA_DNXFER_QUIET = (1 << 31),
};
+extern unsigned int ata_print_id;
extern struct workqueue_struct *ata_aux_wq;
extern int atapi_enabled;
extern int atapi_dmadir;
@@ -92,10 +93,9 @@ extern int ata_flush_cache(struct ata_device *dev);
extern void ata_dev_init(struct ata_device *dev);
extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
-extern void ata_port_init(struct ata_port *ap, struct ata_host *host,
- const struct ata_probe_ent *ent, unsigned int port_no);
extern struct ata_probe_ent *ata_probe_ent_alloc(struct device *dev,
const struct ata_port_info *port);
+extern struct ata_port *ata_port_alloc(struct ata_host *host);
/* libata-acpi.c */
#ifdef CONFIG_SATA_ACPI
@@ -113,8 +113,8 @@ static inline int ata_acpi_push_id(struct ata_port *ap, unsigned int ix)
#endif
/* libata-scsi.c */
-extern struct scsi_transport_template ata_scsi_transport_template;
-
+extern int ata_scsi_add_hosts(struct ata_host *host,
+ struct scsi_host_template *sht);
extern void ata_scsi_scan_host(struct ata_port *ap);
extern int ata_scsi_offline_dev(struct ata_device *dev);
extern void ata_scsi_hotplug(struct work_struct *work);