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path: root/drivers/infiniband
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-rw-r--r--drivers/infiniband/hw/ipath/ipath_ud.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c
index 36aa242c487c..729446f56aab 100644
--- a/drivers/infiniband/hw/ipath/ipath_ud.c
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c
@@ -267,6 +267,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
267 u16 lrh0; 267 u16 lrh0;
268 u16 lid; 268 u16 lid;
269 int ret = 0; 269 int ret = 0;
270 int next_cur;
270 271
271 spin_lock_irqsave(&qp->s_lock, flags); 272 spin_lock_irqsave(&qp->s_lock, flags);
272 273
@@ -290,8 +291,9 @@ int ipath_make_ud_req(struct ipath_qp *qp)
290 goto bail; 291 goto bail;
291 292
292 wqe = get_swqe_ptr(qp, qp->s_cur); 293 wqe = get_swqe_ptr(qp, qp->s_cur);
293 if (++qp->s_cur >= qp->s_size) 294 next_cur = qp->s_cur + 1;
294 qp->s_cur = 0; 295 if (next_cur >= qp->s_size)
296 next_cur = 0;
295 297
296 /* Construct the header. */ 298 /* Construct the header. */
297 ah_attr = &to_iah(wqe->wr.wr.ud.ah)->attr; 299 ah_attr = &to_iah(wqe->wr.wr.ud.ah)->attr;
@@ -315,6 +317,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
315 qp->s_flags |= IPATH_S_WAIT_DMA; 317 qp->s_flags |= IPATH_S_WAIT_DMA;
316 goto bail; 318 goto bail;
317 } 319 }
320 qp->s_cur = next_cur;
318 spin_unlock_irqrestore(&qp->s_lock, flags); 321 spin_unlock_irqrestore(&qp->s_lock, flags);
319 ipath_ud_loopback(qp, wqe); 322 ipath_ud_loopback(qp, wqe);
320 spin_lock_irqsave(&qp->s_lock, flags); 323 spin_lock_irqsave(&qp->s_lock, flags);
@@ -323,6 +326,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
323 } 326 }
324 } 327 }
325 328
329 qp->s_cur = next_cur;
326 extra_bytes = -wqe->length & 3; 330 extra_bytes = -wqe->length & 3;
327 nwords = (wqe->length + extra_bytes) >> 2; 331 nwords = (wqe->length + extra_bytes) >> 2;
328 332