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| author | Holger Macht <holger@homac.de> | 2012-06-25 16:13:02 +0800 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2012-06-29 11:38:09 -0400 |
| commit | de50ada55b6b83b54b817911ec42dc590e1c1738 (patch) | |
| tree | a01be5907effa3e64cf3b9b65b963a8785f42889 | |
| parent | 9acc7bde23ebb19a704395f76490685e1513e422 (diff) | |
| download | linux-de50ada55b6b83b54b817911ec42dc590e1c1738.tar.gz linux-de50ada55b6b83b54b817911ec42dc590e1c1738.tar.bz2 linux-de50ada55b6b83b54b817911ec42dc590e1c1738.zip | |
[SCSI] add wrapper to access and set scsi_bus_type in struct acpi_bus_type
For being able to bind ata devices against acpi devices, scsi_bus_type
needs to be set as bus in struct acpi_bus_type. So add wrapper to
scsi_lib to accomplish that.
Signed-off-by: Holger Macht <holger@homac.de>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 17 | ||||
| -rw-r--r-- | include/scsi/scsi.h | 10 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 6dfb9785d345..08f1e297c735 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -68,6 +68,23 @@ static struct scsi_host_sg_pool scsi_sg_pools[] = { struct kmem_cache *scsi_sdb_cache; +#ifdef CONFIG_ACPI +#include <acpi/acpi_bus.h> + +int scsi_register_acpi_bus_type(struct acpi_bus_type *bus) +{ + bus->bus = &scsi_bus_type; + return register_acpi_bus_type(bus); +} +EXPORT_SYMBOL_GPL(scsi_register_acpi_bus_type); + +void scsi_unregister_acpi_bus_type(struct acpi_bus_type *bus) +{ + unregister_acpi_bus_type(bus); +} +EXPORT_SYMBOL_GPL(scsi_unregister_acpi_bus_type); +#endif + /* * When to reinvoke queueing after a resource shortage. It's 3 msecs to * not change behaviour from the previous unplug mechanism, experimentation diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index f34a5a87af38..4527b3a13321 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -214,6 +214,16 @@ scsi_command_size(const unsigned char *cmnd) scsi_varlen_cdb_length(cmnd) : COMMAND_SIZE(cmnd[0]); } +#ifdef CONFIG_ACPI +struct acpi_bus_type; + +extern int +scsi_register_acpi_bus_type(struct acpi_bus_type *bus); + +extern void +scsi_unregister_acpi_bus_type(struct acpi_bus_type *bus); +#endif + /* * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft * T10/1561-D Revision 4 Draft dated 7th November 2002. |