[PATCH V3 02/18] RDMA/siw: Introduce siw_update_skb_rcvd

[Guoqing Jiang <guoqing.jiang@xxxxxxxxx>]

There are some places share the same logic, factor a common
helper for it.

Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxx>
---
Changes from previous verison:
1. s/siw_srx_update_skb/siw_update_skb_rcvd

 drivers/infiniband/sw/siw/siw_qp_rx.c | 31 +++++++++++----------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/infiniband/sw/siw/siw_qp_rx.c b/drivers/infiniband/sw/siw/siw_qp_rx.c
index 33e0fdb362ff..10805a7d0487 100644
--- a/drivers/infiniband/sw/siw/siw_qp_rx.c
+++ b/drivers/infiniband/sw/siw/siw_qp_rx.c
@@ -881,6 +881,13 @@ int siw_proc_rresp(struct siw_qp *qp)
 	return rv;
 }
 
+static void siw_update_skb_rcvd(struct siw_rx_stream *srx, u16 length)
+{
+	srx->skb_offset += length;
+	srx->skb_new -= length;
+	srx->skb_copied += length;
+}
+
 int siw_proc_terminate(struct siw_qp *qp)
 {
 	struct siw_rx_stream *srx = &qp->rx_stream;
@@ -925,9 +932,7 @@ int siw_proc_terminate(struct siw_qp *qp)
 		goto out;
 
 	infop += to_copy;
-	srx->skb_offset += to_copy;
-	srx->skb_new -= to_copy;
-	srx->skb_copied += to_copy;
+	siw_update_skb_rcvd(srx, to_copy);
 	srx->fpdu_part_rcvd += to_copy;
 	srx->fpdu_part_rem -= to_copy;
 
@@ -949,9 +954,7 @@ int siw_proc_terminate(struct siw_qp *qp)
 			   term->flag_m ? "valid" : "invalid");
 	}
 out:
-	srx->skb_new -= to_copy;
-	srx->skb_offset += to_copy;
-	srx->skb_copied += to_copy;
+	siw_update_skb_rcvd(srx, to_copy);
 	srx->fpdu_part_rcvd += to_copy;
 	srx->fpdu_part_rem -= to_copy;
 
@@ -970,9 +973,7 @@ static int siw_get_trailer(struct siw_qp *qp, struct siw_rx_stream *srx)
 
 	skb_copy_bits(skb, srx->skb_offset, tbuf, avail);
 
-	srx->skb_new -= avail;
-	srx->skb_offset += avail;
-	srx->skb_copied += avail;
+	siw_update_skb_rcvd(srx, avail);
 	srx->fpdu_part_rem -= avail;
 
 	if (srx->fpdu_part_rem)
@@ -1023,12 +1024,8 @@ static int siw_get_hdr(struct siw_rx_stream *srx)
 		skb_copy_bits(skb, srx->skb_offset,
 			      (char *)c_hdr + srx->fpdu_part_rcvd, bytes);
 
+		siw_update_skb_rcvd(srx, bytes);
 		srx->fpdu_part_rcvd += bytes;
-
-		srx->skb_new -= bytes;
-		srx->skb_offset += bytes;
-		srx->skb_copied += bytes;
-
 		if (srx->fpdu_part_rcvd < MIN_DDP_HDR)
 			return -EAGAIN;
 
@@ -1091,12 +1088,8 @@ static int siw_get_hdr(struct siw_rx_stream *srx)
 		skb_copy_bits(skb, srx->skb_offset,
 			      (char *)c_hdr + srx->fpdu_part_rcvd, bytes);
 
+		siw_update_skb_rcvd(srx, bytes);
 		srx->fpdu_part_rcvd += bytes;
-
-		srx->skb_new -= bytes;
-		srx->skb_offset += bytes;
-		srx->skb_copied += bytes;
-
 		if (srx->fpdu_part_rcvd < hdrlen)
 			return -EAGAIN;
 	}
-- 
2.35.3