From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrien Mazarguil Subject: [PATCH] net/mlx5: work around compilation issue Date: Wed, 13 Jul 2016 16:33:22 +0200 Message-ID: <1468420402-27477-1-git-send-email-adrien.mazarguil@6wind.com> Cc: Olga Shern To: dev@dpdk.org Return-path: Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50]) by dpdk.org (Postfix) with ESMTP id 626782BCE for ; Wed, 13 Jul 2016 16:33:30 +0200 (CEST) Received: by mail-wm0-f50.google.com with SMTP id f126so31765729wma.1 for ; Wed, 13 Jul 2016 07:33:30 -0700 (PDT) List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Olga Shern RHEL 7.1's GCC for POWER8 reports the following error in one rte_memcpy() macro call by mlx5: error: array subscript is above array bounds [-Werror=array-bounds] It appears to be a GCC bug which can be worked around by making parentheses more explicit. Signed-off-by: Olga Shern Signed-off-by: Adrien Mazarguil --- drivers/net/mlx5/mlx5_rxtx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c index 615de94..fce3381 100644 --- a/drivers/net/mlx5/mlx5_rxtx.c +++ b/drivers/net/mlx5/mlx5_rxtx.c @@ -472,8 +472,8 @@ mlx5_wqe_write_inline_vlan(struct txq *txq, volatile union mlx5_wqe *wqe, (uint8_t *)addr, 12); rte_memcpy((uint8_t *)(uintptr_t)wqe->inl.eseg.inline_hdr_start + 12, &vlan, sizeof(vlan)); - rte_memcpy((uint8_t *)(uintptr_t)wqe->inl.eseg.inline_hdr_start + 16, - ((uint8_t *)addr + 12), 2); + rte_memcpy((uint8_t *)((uintptr_t)wqe->inl.eseg.inline_hdr_start + 16), + (uint8_t *)(addr + 12), 2); addr += MLX5_ETH_VLAN_INLINE_HEADER_SIZE - sizeof(vlan); length -= MLX5_ETH_VLAN_INLINE_HEADER_SIZE - sizeof(vlan); size = (sizeof(wqe->inl.ctrl.ctrl) + -- 2.1.4