IB/mthca: Remove checks for srq->first_free < 0
The SRQ receive posting functions make sure that srq->first_free never becomes negative, so we can remove tests of whether it is negative. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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@ -475,11 +475,7 @@ void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr)
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spin_lock(&srq->lock);
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if (likely(srq->first_free >= 0))
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*wqe_to_link(get_wqe(srq, srq->last_free)) = ind;
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else
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srq->first_free = ind;
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*wqe_to_link(get_wqe(srq, srq->last_free)) = ind;
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*wqe_to_link(get_wqe(srq, ind)) = -1;
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srq->last_free = ind;
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@ -506,15 +502,7 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
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first_ind = srq->first_free;
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for (nreq = 0; wr; wr = wr->next) {
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ind = srq->first_free;
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if (unlikely(ind < 0)) {
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mthca_err(dev, "SRQ %06x full\n", srq->srqn);
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err = -ENOMEM;
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*bad_wr = wr;
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break;
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}
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ind = srq->first_free;
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wqe = get_wqe(srq, ind);
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next_ind = *wqe_to_link(wqe);
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@ -614,15 +602,7 @@ int mthca_arbel_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
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spin_lock_irqsave(&srq->lock, flags);
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for (nreq = 0; wr; ++nreq, wr = wr->next) {
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ind = srq->first_free;
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if (unlikely(ind < 0)) {
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mthca_err(dev, "SRQ %06x full\n", srq->srqn);
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err = -ENOMEM;
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*bad_wr = wr;
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break;
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}
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ind = srq->first_free;
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wqe = get_wqe(srq, ind);
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next_ind = *wqe_to_link(wqe);
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