From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ferruh Yigit Subject: [PATCH] ixgbe: fix icc compile error Date: Wed, 23 Mar 2016 17:45:58 +0000 Message-ID: <1458755158-16145-1-git-send-email-ferruh.yigit@intel.com> Cc: Ferruh Yigit To: dev@dpdk.org Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 7520039EA for ; Wed, 23 Mar 2016 18:46:02 +0100 (CET) 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" Fixes: 06554d381d97 ("ixgbe: speed up non-vector Tx") icc (icc (ICC) 16.0.1 20151021) is generating following compile error: " CC ixgbe_rxtx.o .../drivers/net/ixgbe/ixgbe_rxtx.c(153): error #3656: variable "free" may be used before its value is set (nb_free > 0 && m->pool != free[0]->pool)) { ^ " Indeed this is a false positive and code is correct. "nb_free" check prevents the free[] access before its value set. But the patch is just for compiler to remove compiler error. Signed-off-by: Ferruh Yigit --- drivers/net/ixgbe/ixgbe_rxtx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index ff6ddb8..ef1a26f 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -128,7 +128,8 @@ ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq) struct ixgbe_tx_entry *txep; uint32_t status; int i, nb_free = 0; - struct rte_mbuf *m, *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ]; + struct rte_mbuf *m; + struct rte_mbuf *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ] = {0}; /* check DD bit on threshold descriptor */ status = txq->tx_ring[txq->tx_next_dd].wb.status; -- 2.5.0