From 6d030554f1a6a0f2d82bb3371ebb1c5458a49491 Mon Sep 17 00:00:00 2001 From: Amit Prakash Shukla Date: Thu, 1 Sep 2022 14:01:18 +0530 Subject: [PATCH] net/mvneta: fix build with GCC 12 [ upstream commit d7b080f1e72d833d668a66199fe99ccda6c81a36 ] ./drivers/net/mvneta/mvneta_rxtx.c:89:42: error: 'mbufs' may be used uninitialized [-Werror=maybe-uninitialized] 89 | MVNETA_SET_COOKIE_HIGH_ADDR(mbufs[0]); | ^ ../drivers/net/mvneta/mvneta_rxtx.c:77:26: note: 'mbufs' declared here 77 | struct rte_mbuf *mbufs[MRVL_NETA_BUF_RELEASE_BURST_SIZE_MAX]; | ^~~~~ Fixes: ce7ea764597e ("net/mvneta: support Rx/Tx") Signed-off-by: Amit Prakash Shukla Acked-by: Liron Himi --- drivers/net/mvneta/mvneta_rxtx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/mvneta/mvneta_rxtx.c b/drivers/net/mvneta/mvneta_rxtx.c index 6e4a7896b4..952e982275 100644 --- a/drivers/net/mvneta/mvneta_rxtx.c +++ b/drivers/net/mvneta/mvneta_rxtx.c @@ -79,6 +79,10 @@ mvneta_buffs_refill(struct mvneta_priv *priv, struct mvneta_rxq *rxq, u16 *num) int i, ret; uint16_t nb_desc = *num; + /* To prevent GCC-12 warning. */ + if (unlikely(nb_desc == 0)) + return -1; + ret = rte_pktmbuf_alloc_bulk(rxq->mp, mbufs, nb_desc); if (ret) { MVNETA_LOG(ERR, "Failed to allocate %u mbufs.", nb_desc); -- 2.23.0