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| author |   Leon Romanovsky <leonro@mellanox.com> | 2018-10-10 09:19:11 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2018-10-16 13:37:16 -0400 |
| commit | d21943dd19b5c79dc09bb0e8bf80cd5ee09c41c2 (patch) | |
| tree | 823d6d10d3ef9752a41199f81762d789960b14f1 | |
| parent | RDMA/core: Annotate timeout as unsigned long (diff) | |
| download | linux-dev-d21943dd19b5c79dc09bb0e8bf80cd5ee09c41c2.tar.xz linux-dev-d21943dd19b5c79dc09bb0e8bf80cd5ee09c41c2.zip | |
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>
| -rw-r--r-- | drivers/infiniband/core/core_priv.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/core/device.c | 25 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index d7399d5b1cb6..c5881756b799 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -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); diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index d105b9b2d118..5e70f5e1cfd9 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -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; |