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IB/cache: Restore compatibility for ib_query_gid 

Code changes in smc have become so complicated this cycle that the RDMA
patches to remove ib_query_gid in smc create too complex merge conflicts.
Allow those conflicts to be resolved by using the net/smc hunks by
providing a compatibility wrapper. During the second phase of the merge
window this wrapper will be deleted and smc updated to use the new API.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2018-07-27 09:48:30 -06:00
parent df06510793
commit 7aaa1807e6
1 changed files with 24 additions and 0 deletions
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24
include/rdma/ib_cache.h
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@ -132,4 +132,28 @@ const struct ib_gid_attr *rdma_get_gid_attr(struct ib_device *device,
u8 port_num, int index);
void rdma_put_gid_attr(const struct ib_gid_attr *attr);
void rdma_hold_gid_attr(const struct ib_gid_attr *attr);
/*
* This is to be removed. It only exists to make merging rdma and smc simpler.
*/
static inline __deprecated int ib_query_gid(struct ib_device *device,
u8 port_num, int index,
union ib_gid *gid,
struct ib_gid_attr *attr_out)
{
const struct ib_gid_attr *attr;
attr = rdma_get_gid_attr(device, port_num, index);
if (IS_ERR(attr))
return PTR_ERR(attr);
if (attr->ndev)
dev_hold(attr->ndev);
*attr_out = *attr;
rdma_put_gid_attr(attr);
return 0;
}
#endif /* _IB_CACHE_H */