Commit 8aac4cc3 ("IB/qib: RCU locking for MR validation") introduced
an error that broke user post sends. The proper validation of the MR
was lost in the patch.
This patch corrects that validation.
Reviewed-by: Dean Luick <dean.luick@xxxxxxxxx>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
---
drivers/infiniband/hw/qib/qib_keys.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c
index e9486c7..ef69534 100644
--- a/drivers/infiniband/hw/qib/qib_keys.c
+++ b/drivers/infiniband/hw/qib/qib_keys.c
@@ -186,8 +186,8 @@ int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
goto bail;
off = sge->addr - mr->user_base;
- if (unlikely(sge->addr < mr->iova || off + sge->length > mr->length ||
- (mr->access_flags & acc) == 0))
+ if (unlikely(sge->addr < mr->user_base || off + sge->length > mr->length ||
+ (mr->access_flags & acc) != acc))
goto bail;
if (unlikely(!atomic_inc_not_zero(&mr->refcount)))
goto bail;
--
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