Re: [PATCH] iwch_create_cq off by one error
- From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 29 Feb 2008 10:49:28 -0600
Acked-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Jon Mason wrote:
The cxbg3 driver is unnecessarily decreasing the number of cq entries
by one when creating a cq. This will cause an error of not having as
many cqs as requested by the user, if the user requests a power of 2
cq length.
Thanks,
Jon
Signed-off-by: Jon Mason <jon@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/cxgb3/iwch_provider.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index f0c7775..800ef6d 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -188,7 +188,7 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
return ERR_PTR(-ENOMEM);
}
chp->rhp = rhp;
- chp->ibcq.cqe = (1 << chp->cq.size_log2) - 1;
+ chp->ibcq.cqe = 1 << chp->cq.size_log2;
spin_lock_init(&chp->lock);
atomic_set(&chp->refcnt, 1);
init_waitqueue_head(&chp->wait);
--
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