| Message ID | 20090723230300.4247.75347.stgit@bob.kio (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
On Thursday 23 July 2009 05:03:00 pm Alex Chiang wrote: > We can simplify ACPI drivers if we can tell whether a handle is an > ACPI PCI root or not. > > Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> > Signed-off-by: Alex Chiang <achiang@hp.com> Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com> > --- > > drivers/acpi/pci_root.c | 17 ++--------------- > include/acpi/acpi_bus.h | 16 ++++++++++++++++ > 2 files changed, 18 insertions(+), 15 deletions(-) > > diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c > index 55b5b90..31b961c 100644 > --- a/drivers/acpi/pci_root.c > +++ b/drivers/acpi/pci_root.c > @@ -61,20 +61,6 @@ static struct acpi_driver acpi_pci_root_driver = { > }, > }; > > -struct acpi_pci_root { > - struct list_head node; > - struct acpi_device *device; > - struct pci_bus *bus; > - u16 segment; > - u8 bus_nr; > - > - u32 osc_support_set; /* _OSC state of support bits */ > - u32 osc_control_set; /* _OSC state of control bits */ > - u32 osc_control_qry; /* the latest _OSC query result */ > - > - u32 osc_queried:1; /* has _OSC control been queried? */ > -}; > - > static LIST_HEAD(acpi_pci_roots); > > static struct acpi_pci_driver *sub_driver; > @@ -317,7 +303,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags) > return status; > } > > -static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) > +struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) > { > struct acpi_pci_root *root; > > @@ -327,6 +313,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) > } > return NULL; > } > +EXPORT_SYMBOL_GPL(acpi_pci_find_root); > > struct acpi_handle_node { > struct list_head node; > diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h > index c65e4ce..c3ace75 100644 > --- a/include/acpi/acpi_bus.h > +++ b/include/acpi/acpi_bus.h > @@ -369,10 +369,26 @@ int register_acpi_bus_type(struct acpi_bus_type *); > int unregister_acpi_bus_type(struct acpi_bus_type *); > struct device *acpi_get_physical_device(acpi_handle); > > +struct acpi_pci_root { > + struct list_head node; > + struct acpi_device * device; > + struct acpi_pci_id id; > + struct pci_bus *bus; > + u16 segment; > + u8 bus_nr; > + > + u32 osc_support_set; /* _OSC state of support bits */ > + u32 osc_control_set; /* _OSC state of control bits */ > + u32 osc_control_qry; /* the latest _OSC query result */ > + > + u32 osc_queried:1; /* has _OSC control been queried? */ > +}; > + > /* helper */ > acpi_handle acpi_get_child(acpi_handle, acpi_integer); > int acpi_is_root_bridge(acpi_handle); > acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int); > +struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); > #define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle)) > > #ifdef CONFIG_PM_SLEEP > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 55b5b90..31b961c 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -61,20 +61,6 @@ static struct acpi_driver acpi_pci_root_driver = { }, }; -struct acpi_pci_root { - struct list_head node; - struct acpi_device *device; - struct pci_bus *bus; - u16 segment; - u8 bus_nr; - - u32 osc_support_set; /* _OSC state of support bits */ - u32 osc_control_set; /* _OSC state of control bits */ - u32 osc_control_qry; /* the latest _OSC query result */ - - u32 osc_queried:1; /* has _OSC control been queried? */ -}; - static LIST_HEAD(acpi_pci_roots); static struct acpi_pci_driver *sub_driver; @@ -317,7 +303,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags) return status; } -static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) +struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) { struct acpi_pci_root *root; @@ -327,6 +313,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) } return NULL; } +EXPORT_SYMBOL_GPL(acpi_pci_find_root); struct acpi_handle_node { struct list_head node; diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index c65e4ce..c3ace75 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -369,10 +369,26 @@ int register_acpi_bus_type(struct acpi_bus_type *); int unregister_acpi_bus_type(struct acpi_bus_type *); struct device *acpi_get_physical_device(acpi_handle); +struct acpi_pci_root { + struct list_head node; + struct acpi_device * device; + struct acpi_pci_id id; + struct pci_bus *bus; + u16 segment; + u8 bus_nr; + + u32 osc_support_set; /* _OSC state of support bits */ + u32 osc_control_set; /* _OSC state of control bits */ + u32 osc_control_qry; /* the latest _OSC query result */ + + u32 osc_queried:1; /* has _OSC control been queried? */ +}; + /* helper */ acpi_handle acpi_get_child(acpi_handle, acpi_integer); int acpi_is_root_bridge(acpi_handle); acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int); +struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); #define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle)) #ifdef CONFIG_PM_SLEEP
We can simplify ACPI drivers if we can tell whether a handle is an ACPI PCI root or not. Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> --- drivers/acpi/pci_root.c | 17 ++--------------- include/acpi/acpi_bus.h | 16 ++++++++++++++++ 2 files changed, 18 insertions(+), 15 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html