[PATCH 3/4] Create vio_bus_ops
Stephen Rothwell
sfr at canb.auug.org.au
Wed Aug 17 16:41:44 EST 2005
Create vio_bus_ops so that we just pass a structure to vio_bus_init
instead of three separate function pointers.
Rearrange vio.h to avoid forward references. vio.h only needs
struct device_node from prom.h so remove the include and just
declare it.
Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
arch/ppc64/kernel/iSeries_vio.c | 6 ++
arch/ppc64/kernel/pSeries_vio.c | 10 +++-
arch/ppc64/kernel/vio.c | 24 +++------
drivers/scsi/ibmvscsi/rpa_vscsi.c | 1
include/asm-ppc64/vio.h | 97 ++++++++++++++++++-------------------
5 files changed, 69 insertions(+), 69 deletions(-)
--
Cheers,
Stephen Rothwell sfr at canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
a4f1f328f03f481ee9a9446cd038a3370995ea0d
diff --git a/arch/ppc64/kernel/iSeries_vio.c b/arch/ppc64/kernel/iSeries_vio.c
--- a/arch/ppc64/kernel/iSeries_vio.c
+++ b/arch/ppc64/kernel/iSeries_vio.c
@@ -131,6 +131,10 @@ static int vio_match_device_iseries(cons
return strncmp(dev->type, id->type, strlen(id->type)) == 0;
}
+static struct vio_bus_ops vio_bus_ops_iseries = {
+ .match = vio_match_device_iseries,
+};
+
/**
* vio_bus_init_iseries: - Initialize the iSeries virtual IO bus
*/
@@ -138,7 +142,7 @@ static int __init vio_bus_init_iseries(v
{
int err;
- err = vio_bus_init(vio_match_device_iseries, NULL, NULL);
+ err = vio_bus_init(&vio_bus_ops_iseries);
if (err == 0) {
iommu_vio_init();
vio_bus_device.iommu_table = &vio_iommu_table;
diff --git a/arch/ppc64/kernel/pSeries_vio.c b/arch/ppc64/kernel/pSeries_vio.c
--- a/arch/ppc64/kernel/pSeries_vio.c
+++ b/arch/ppc64/kernel/pSeries_vio.c
@@ -76,6 +76,12 @@ static void vio_unregister_device_pserie
device_remove_file(&viodev->dev, &dev_attr_devspec);
}
+static struct vio_bus_ops vio_bus_ops_pseries = {
+ .match = vio_match_device_pseries,
+ .unregister_device = vio_unregister_device_pseries,
+ .release_device = vio_release_device_pseries,
+};
+
/**
* vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
*/
@@ -83,9 +89,7 @@ static int __init vio_bus_init_pseries(v
{
int err;
- err = vio_bus_init(vio_match_device_pseries,
- vio_unregister_device_pseries,
- vio_release_device_pseries);
+ err = vio_bus_init(&vio_bus_ops_pseries);
if (err == 0)
probe_bus_pseries();
return err;
diff --git a/arch/ppc64/kernel/vio.c b/arch/ppc64/kernel/vio.c
--- a/arch/ppc64/kernel/vio.c
+++ b/arch/ppc64/kernel/vio.c
@@ -32,10 +32,7 @@ struct vio_dev vio_bus_device = { /* fa
.dev.bus = &vio_bus_type,
};
-static int (*is_match)(const struct vio_device_id *id,
- const struct vio_dev *dev);
-static void (*unregister_device_callback)(struct vio_dev *dev);
-static void (*release_device_callback)(struct device *dev);
+static struct vio_bus_ops vio_bus_ops;
/*
* Convert from struct device to struct vio_dev and pass to driver.
@@ -115,7 +112,7 @@ static const struct vio_device_id *vio_m
const struct vio_device_id *ids, const struct vio_dev *dev)
{
while (ids->type) {
- if (is_match(ids, dev))
+ if (vio_bus_ops.match(ids, dev))
return ids;
ids++;
}
@@ -125,16 +122,11 @@ static const struct vio_device_id *vio_m
/**
* vio_bus_init: - Initialize the virtual IO bus
*/
-int __init vio_bus_init(int (*match_func)(const struct vio_device_id *id,
- const struct vio_dev *dev),
- void (*unregister_dev)(struct vio_dev *),
- void (*release_dev)(struct device *))
+int __init vio_bus_init(struct vio_bus_ops *ops)
{
int err;
- is_match = match_func;
- unregister_device_callback = unregister_dev;
- release_device_callback = release_dev;
+ vio_bus_ops = *ops;
err = bus_register(&vio_bus_type);
if (err) {
@@ -159,8 +151,8 @@ int __init vio_bus_init(int (*match_func
/* vio_dev refcount hit 0 */
static void __devinit vio_dev_release(struct device *dev)
{
- if (release_device_callback)
- release_device_callback(dev);
+ if (vio_bus_ops.release_device)
+ vio_bus_ops.release_device(dev);
kfree(to_vio_dev(dev));
}
@@ -191,8 +183,8 @@ struct vio_dev * __devinit vio_register_
void __devinit vio_unregister_device(struct vio_dev *viodev)
{
- if (unregister_device_callback)
- unregister_device_callback(viodev);
+ if (vio_bus_ops.unregister_device)
+ vio_bus_ops.unregister_device(viodev);
device_remove_file(&viodev->dev, &dev_attr_name);
device_unregister(&viodev->dev);
}
diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -28,6 +28,7 @@
*/
#include <asm/vio.h>
+#include <asm/prom.h>
#include <asm/iommu.h>
#include <asm/hvcall.h>
#include <linux/dma-mapping.h>
diff --git a/include/asm-ppc64/vio.h b/include/asm-ppc64/vio.h
--- a/include/asm-ppc64/vio.h
+++ b/include/asm-ppc64/vio.h
@@ -19,13 +19,14 @@
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+
#include <asm/hvcall.h>
-#include <asm/prom.h>
#include <asm/scatterlist.h>
-/*
+
+/*
* Architecture-specific constants for drivers to
* extract attributes of the device using vio_get_attribute()
-*/
+ */
#define VETH_MAC_ADDR "local-mac-address"
#define VETH_MCAST_FILTER_SIZE "ibm,mac-address-filters"
@@ -37,30 +38,19 @@
#define VIO_IRQ_DISABLE 0UL
#define VIO_IRQ_ENABLE 1UL
-struct vio_dev;
-struct vio_driver;
-struct vio_device_id;
struct iommu_table;
-int vio_register_driver(struct vio_driver *drv);
-void vio_unregister_driver(struct vio_driver *drv);
-
-#ifdef CONFIG_PPC_PSERIES
-struct vio_dev * __devinit vio_register_device_node(
- struct device_node *node_vdev);
-#endif
-void __devinit vio_unregister_device(struct vio_dev *dev);
-struct vio_dev *vio_find_node(struct device_node *vnode);
-
-const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length);
-int vio_get_irq(struct vio_dev *dev);
-int vio_enable_interrupts(struct vio_dev *dev);
-int vio_disable_interrupts(struct vio_dev *dev);
-extern struct vio_dev * __devinit vio_register_device(struct vio_dev *viodev);
-
-extern struct dma_mapping_ops vio_dma_ops;
-
-extern struct bus_type vio_bus_type;
+/*
+ * The vio_dev structure is used to describe virtual I/O devices.
+ */
+struct vio_dev {
+ struct iommu_table *iommu_table; /* vio_map_* uses this */
+ char *name;
+ char *type;
+ uint32_t unit_address;
+ unsigned int irq;
+ struct device dev;
+};
struct vio_device_id {
char *type;
@@ -70,42 +60,51 @@ struct vio_device_id {
struct vio_driver {
struct list_head node;
char *name;
- const struct vio_device_id *id_table; /* NULL if wants all devices */
- int (*probe) (struct vio_dev *dev, const struct vio_device_id *id); /* New device inserted */
- int (*remove) (struct vio_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
+ const struct vio_device_id *id_table;
+ int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
+ int (*remove)(struct vio_dev *dev);
unsigned long driver_data;
-
struct device_driver driver;
};
+struct vio_bus_ops {
+ int (*match)(const struct vio_device_id *id, const struct vio_dev *dev);
+ void (*unregister_device)(struct vio_dev *);
+ void (*release_device)(struct device *);
+};
+
+extern struct dma_mapping_ops vio_dma_ops;
+extern struct bus_type vio_bus_type;
+extern struct vio_dev vio_bus_device;
+
+extern int vio_register_driver(struct vio_driver *drv);
+extern void vio_unregister_driver(struct vio_driver *drv);
+
+extern struct vio_dev * __devinit vio_register_device(struct vio_dev *viodev);
+extern void __devinit vio_unregister_device(struct vio_dev *dev);
+
+extern int vio_bus_init(struct vio_bus_ops *);
+
+#ifdef CONFIG_PPC_PSERIES
+struct device_node;
+
+extern struct vio_dev * __devinit vio_register_device_node(
+ struct device_node *node_vdev);
+extern struct vio_dev *vio_find_node(struct device_node *vnode);
+extern const void *vio_get_attribute(struct vio_dev *vdev, void *which,
+ int *length);
+extern int vio_enable_interrupts(struct vio_dev *dev);
+extern int vio_disable_interrupts(struct vio_dev *dev);
+#endif
+
static inline struct vio_driver *to_vio_driver(struct device_driver *drv)
{
return container_of(drv, struct vio_driver, driver);
}
-/*
- * The vio_dev structure is used to describe virtual I/O devices.
- */
-struct vio_dev {
- struct iommu_table *iommu_table; /* vio_map_* uses this */
- char *name;
- char *type;
- uint32_t unit_address;
- unsigned int irq;
-
- struct device dev;
-};
-
-extern struct vio_dev vio_bus_device;
-
static inline struct vio_dev *to_vio_dev(struct device *dev)
{
return container_of(dev, struct vio_dev, dev);
}
-extern int vio_bus_init(int (*is_match)(const struct vio_device_id *id,
- const struct vio_dev *dev),
- void (*)(struct vio_dev *),
- void (*)(struct device *));
-
#endif /* _ASM_VIO_H */
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