1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c
index 021636dbeae6..21ffa7c0915f 100644
--- a/drivers/infiniband/hw/qib/qib_init.c
+++ b/drivers/infiniband/hw/qib/qib_init.c
@@ -183,6 +183,9 @@ struct qib_ctxtdata *qib_create_ctxtdata(struct qib_pportdata *ppd, u32 ctxt)
                 rcd->rcvegrbuf_chunks = (rcd->rcvegrcnt +
                         rcd->rcvegrbufs_perchunk - 1) /
                         rcd->rcvegrbufs_perchunk;
+                BUG_ON(!is_power_of_2(rcd->rcvegrbufs_perchunk));
+                rcd->rcvegrbufs_perchunk_shift =
+                        ilog2(rcd->rcvegrbufs_perchunk);
         }
         return rcd;
 }