From: Christoph Hellwig <hch@xxxxxx> commit 8ecfca68dc4cbee1272a0161e3f2fb9387dc6930 upstream. Lift the ibdev_to_node from rds to common code and document it. Link: https://lore.kernel.org/r/20201106181941.1878556-4-hch@xxxxxx Signed-off-by: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Cc: Krishnamraju Eraparaju <krishna2@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- include/rdma/ib_verbs.h | 13 +++++++++++++ net/rds/ib.h | 7 ------- 2 files changed, 13 insertions(+), 7 deletions(-) --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -4643,6 +4643,19 @@ static inline struct ib_device *rdma_dev } /** + * ibdev_to_node - return the NUMA node for a given ib_device + * @dev: device to get the NUMA node for. + */ +static inline int ibdev_to_node(struct ib_device *ibdev) +{ + struct device *parent = ibdev->dev.parent; + + if (!parent) + return NUMA_NO_NODE; + return dev_to_node(parent); +} + +/** * rdma_device_to_drv_device - Helper macro to reach back to driver's * ib_device holder structure from device pointer. * --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -264,13 +264,6 @@ struct rds_ib_device { int *vector_load; }; -static inline int ibdev_to_node(struct ib_device *ibdev) -{ - struct device *parent; - - parent = ibdev->dev.parent; - return parent ? dev_to_node(parent) : NUMA_NO_NODE; -} #define rdsibdev_to_node(rdsibdev) ibdev_to_node(rdsibdev->dev) /* bits for i_ack_flags */
