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RDMA/restrack: clean up res_to_dev() 

Simplify res_to_dev() to make it easier to read/maintain.

Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Steve Wise 2018-03-01 13:57:22 -08:00 committed by Doug Ledford
parent d50a8a96ee
commit 88831a2cfe
1 changed files with 5 additions and 19 deletions
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24
drivers/infiniband/core/restrack.c
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@ -60,31 +60,17 @@ static void set_kern_name(struct rdma_restrack_entry *res)
static struct ib_device *res_to_dev(struct rdma_restrack_entry *res) static struct ib_device *res_to_dev(struct rdma_restrack_entry *res)
{ {
enum rdma_restrack_type type = res->type; switch (res->type) {
struct ib_device *dev;
struct ib_pd *pd;
struct ib_cq *cq;
struct ib_qp *qp;
switch (type) {
case RDMA_RESTRACK_PD: case RDMA_RESTRACK_PD:
pd = container_of(res, struct ib_pd, res); return container_of(res, struct ib_pd, res)->device;
dev = pd->device;
break;
case RDMA_RESTRACK_CQ: case RDMA_RESTRACK_CQ:
cq = container_of(res, struct ib_cq, res); return container_of(res, struct ib_cq, res)->device;
dev = cq->device;
break;
case RDMA_RESTRACK_QP: case RDMA_RESTRACK_QP:
qp = container_of(res, struct ib_qp, res); return container_of(res, struct ib_qp, res)->device;
dev = qp->device;
break;
default: default:
WARN_ONCE(true, "Wrong resource tracking type %u\n", type); WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type);
return NULL; return NULL;
} }
return dev;
} }
static bool res_is_user(struct rdma_restrack_entry *res) static bool res_is_user(struct rdma_restrack_entry *res)