From: Dan Carpenter Date: Fri, 6 Sep 2013 08:50:46 +0000 (+0300) Subject: RDMA/ocrdma: Silence an integer underflow warning X-Git-Tag: v3.13-rc1~44^2^9~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6ebacdfc07ca61ba258693c9b4c88f1ffbe8ccd7;p=profile%2Fcommon%2Fkernel-common.git RDMA/ocrdma: Silence an integer underflow warning We recently added a cap on "max_wqe_allocated" in 43a6b4025c ('RDMA/ocrdma: Create IRD queue fix'). My static checker complains that the cap has a problem because it casts large values to negative. "attrs->cap.max_send_wr" is a u32. It comes from the user, but it's capped in ocrdma_check_qp_params() so it can't wrap here. Signed-off-by: Dan Carpenter Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 50219ab..56bf32f 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -1783,7 +1783,7 @@ static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req *cmd, u32 max_sges = attrs->cap.max_send_sge; /* QP1 may exceed 127 */ - max_wqe_allocated = min_t(int, attrs->cap.max_send_wr + 1, + max_wqe_allocated = min_t(u32, attrs->cap.max_send_wr + 1, dev->attr.max_wqe); status = ocrdma_build_q_conf(&max_wqe_allocated,