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RDMA/core: Implement IB device rename function 

Generic implementation of IB device rename function.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Leon Romanovsky 2018-10-10 09:19:11 +03:00 committed by Doug Ledford
parent dbace111e5
commit d21943dd19
2 changed files with 26 additions and 0 deletions
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1
drivers/infiniband/core/core_priv.h
View File

@ -87,6 +87,7 @@ int ib_device_register_sysfs(struct ib_device *device,
int (*port_callback)(struct ib_device *,
u8, struct kobject *));
void ib_device_unregister_sysfs(struct ib_device *device);
int ib_device_rename(struct ib_device *ibdev, const char *name);
typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
struct net_device *idev, void *cookie);

25
drivers/infiniband/core/device.c
View File

@ -171,6 +171,31 @@ static struct ib_device *__ib_device_get_by_name(const char *name)
return NULL;
}
int ib_device_rename(struct ib_device *ibdev, const char *name)
{
struct ib_device *device;
int ret = 0;
if (!strcmp(name, dev_name(&ibdev->dev)))
return ret;
mutex_lock(&device_mutex);
list_for_each_entry(device, &device_list, core_list) {
if (!strcmp(name, dev_name(&device->dev))) {
ret = -EEXIST;
goto out;
}
}
ret = device_rename(&ibdev->dev, name);
if (ret)
goto out;
strlcpy(ibdev->name, name, IB_DEVICE_NAME_MAX);
out:
mutex_unlock(&device_mutex);
return ret;
}
static int alloc_name(struct ib_device *ibdev, const char *name)
{
unsigned long *inuse;