From: Roland Dreier Date: Wed, 14 Jul 2010 20:29:21 +0000 (-0700) Subject: RDMA/nes: Rewrite expression to avoid undefined semantics X-Git-Tag: v3.0~4071^2^6~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ea9f3bc6d1d8e2c56225e5be912d035b04740682;p=platform%2Fkernel%2Flinux-amlogic.git RDMA/nes: Rewrite expression to avoid undefined semantics Change code like x = expr(++x) that assigns to x twice without a sequence point in between to the intended (and well-defined) x = expr(x + 1) Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index 57874a1..f41d890 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -1970,7 +1970,7 @@ void nes_destroy_nic_qp(struct nes_vnic *nesvnic) dev_kfree_skb( nesvnic->nic.tx_skb[nesvnic->nic.sq_tail]); - nesvnic->nic.sq_tail = (++nesvnic->nic.sq_tail) + nesvnic->nic.sq_tail = (nesvnic->nic.sq_tail + 1) & (nesvnic->nic.sq_size - 1); }