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authorStephen Rothwell <sfr@canb.auug.org.au>2005-06-21 17:15:54 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 18:46:31 -0700
commitac5b33c9bcf1c05ae949b026a51d7f8f9573591c (patch)
tree4df7bb1a13ec444b3be94b3575a23d7075ebd902 /arch/ppc64
parent145d01e4287b8cbf50f87c3283e33bf5c84e8468 (diff)
[PATCH] ppc64: tidy up vio devices fake parent
Currently we dynamically allocate the fake parent device for all devices on the vio bus. This patch statically allocates it. This also allows us to reuse it for the iSeries "generic" vio device (that is used for passing to dma routines when communicating with the hypervisor without a device involved). Also unexport vio_bus_type as it is never used in modules. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/kernel/vio.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/arch/ppc64/kernel/vio.c b/arch/ppc64/kernel/vio.c
index 79f2dc7a983..0c0ba71ac0e 100644
--- a/arch/ppc64/kernel/vio.c
+++ b/arch/ppc64/kernel/vio.c
@@ -41,20 +41,25 @@ static const struct vio_device_id *vio_match_device(
static struct iommu_table *vio_build_iommu_table(struct vio_dev *);
static int vio_num_address_cells;
#endif
-static struct vio_dev *vio_bus_device; /* fake "parent" device */
-
#ifdef CONFIG_PPC_ISERIES
-static struct vio_dev *__init vio_register_device_iseries(char *type,
- uint32_t unit_num);
-
static struct iommu_table veth_iommu_table;
static struct iommu_table vio_iommu_table;
-
-static struct vio_dev _vio_dev = {
+#endif
+static struct vio_dev vio_bus_device = { /* fake "parent" device */
+ .name = vio_bus_device.dev.bus_id,
+ .type = "",
+#ifdef CONFIG_PPC_ISERIES
.iommu_table = &vio_iommu_table,
- .dev.bus = &vio_bus_type
+#endif
+ .dev.bus_id = "vio",
+ .dev.bus = &vio_bus_type,
};
-struct device *iSeries_vio_dev = &_vio_dev.dev;
+
+#ifdef CONFIG_PPC_ISERIES
+static struct vio_dev *__init vio_register_device_iseries(char *type,
+ uint32_t unit_num);
+
+struct device *iSeries_vio_dev = &vio_bus_device.dev;
EXPORT_SYMBOL(iSeries_vio_dev);
#define device_is_compatible(a, b) 1
@@ -260,18 +265,10 @@ static int __init vio_bus_init(void)
}
/* the fake parent of all vio devices, just to give us a nice directory */
- vio_bus_device = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
- if (!vio_bus_device) {
- return 1;
- }
- memset(vio_bus_device, 0, sizeof(struct vio_dev));
- strcpy(vio_bus_device->dev.bus_id, "vio");
-
- err = device_register(&vio_bus_device->dev);
+ err = device_register(&vio_bus_device.dev);
if (err) {
printk(KERN_WARNING "%s: device_register returned %i\n", __FUNCTION__,
err);
- kfree(vio_bus_device);
return err;
}
@@ -326,7 +323,7 @@ static struct vio_dev * __devinit vio_register_device_common(
viodev->unit_address = unit_address;
viodev->iommu_table = iommu_table;
/* init generic 'struct device' fields: */
- viodev->dev.parent = &vio_bus_device->dev;
+ viodev->dev.parent = &vio_bus_device.dev;
viodev->dev.bus = &vio_bus_type;
viodev->dev.release = vio_dev_release;
@@ -636,5 +633,3 @@ struct bus_type vio_bus_type = {
.name = "vio",
.match = vio_bus_match,
};
-
-EXPORT_SYMBOL(vio_bus_type);