Clang warns when one enumerated type is explicitly converted to another. drivers/infiniband/hw/qedr/qedr_roce_cm.c:198:28: warning: implicit conversion from enumeration type 'enum qed_roce_ll2_tx_dest' to different enumeration type 'enum qed_ll2_tx_dest' [-Wenum-conversion] ll2_tx_pkt.tx_dest = pkt->tx_dest; ~ ~~~~~^~~~~~~ 1 warning generated. Turns out that QED_ROCE_LL2_TX_DEST_NW and QED_ROCE_LL2_TX_DEST_LB are only used once in the whole tree and QED_ROCE_LL2_TX_DEST_MAX is used nowhere. Remove them and use the equivalent values from qed_ll2_tx_dest in their place. Reported-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx> --- v1 -> v2: * Rather than using an explicit cast, just convert the uses to the appropriate values and delete the duplicated enum. drivers/infiniband/hw/qedr/qedr_roce_cm.c | 4 ++-- include/linux/qed/qed_rdma_if.h | 11 +---------- 2 files changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/infiniband/hw/qedr/qedr_roce_cm.c b/drivers/infiniband/hw/qedr/qedr_roce_cm.c index 85578887421b..e1ac2fd60bb1 100644 --- a/drivers/infiniband/hw/qedr/qedr_roce_cm.c +++ b/drivers/infiniband/hw/qedr/qedr_roce_cm.c @@ -519,9 +519,9 @@ static inline int qedr_gsi_build_packet(struct qedr_dev *dev, } if (ether_addr_equal(udh.eth.smac_h, udh.eth.dmac_h)) - packet->tx_dest = QED_ROCE_LL2_TX_DEST_LB; + packet->tx_dest = QED_LL2_TX_DEST_LB; else - packet->tx_dest = QED_ROCE_LL2_TX_DEST_NW; + packet->tx_dest = QED_LL2_TX_DEST_NW; packet->roce_mode = roce_mode; memcpy(packet->header.vaddr, ud_header_buffer, header_size); diff --git a/include/linux/qed/qed_rdma_if.h b/include/linux/qed/qed_rdma_if.h index df4d13f7e191..d15f8e4815e3 100644 --- a/include/linux/qed/qed_rdma_if.h +++ b/include/linux/qed/qed_rdma_if.h @@ -39,15 +39,6 @@ #include <linux/qed/qed_ll2_if.h> #include <linux/qed/rdma_common.h> -enum qed_roce_ll2_tx_dest { - /* Light L2 TX Destination to the Network */ - QED_ROCE_LL2_TX_DEST_NW, - - /* Light L2 TX Destination to the Loopback */ - QED_ROCE_LL2_TX_DEST_LB, - QED_ROCE_LL2_TX_DEST_MAX -}; - #define QED_RDMA_MAX_CNQ_SIZE (0xFFFF) /* rdma interface */ @@ -581,7 +572,7 @@ struct qed_roce_ll2_packet { int n_seg; struct qed_roce_ll2_buffer payload[RDMA_MAX_SGE_PER_SQ_WQE]; int roce_mode; - enum qed_roce_ll2_tx_dest tx_dest; + enum qed_ll2_tx_dest tx_dest; }; enum qed_rdma_type { -- 2.19.0