From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>, dev@dpdk.org
Cc: Bruce Richardson <bruce.richardson@intel.com>,
Adrien Mazarguil <adrien.mazarguil@6wind.com>
Subject: Re: [dpdk-dev] [PATCH v2] net/mlx5: return RSS hash result in mbuf
Date: Tue, 27 Sep 2016 18:03:51 +0100 [thread overview]
Message-ID: <4fbbd27b-9610-4772-5cba-5ce896b4eebf@intel.com> (raw)
In-Reply-To: <30739c1ee245c3e3ee9a1122ca08285d718eb9b8.1474987853.git.nelio.laranjeiro@6wind.com>
On 9/27/2016 3:53 PM, Nelio Laranjeiro wrote:
> Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
<...>
> @@ -1286,12 +1291,13 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
> &(*rxq->cqes)[rxq->cq_ci & cqe_cnt].cqe64;
> unsigned int i = 0;
> unsigned int rq_ci = rxq->rq_ci << sges_n;
> - int len;
>
> while (pkts_n) {
> unsigned int idx = rq_ci & wqe_cnt;
> volatile struct mlx5_wqe_data_seg *wqe = &(*rxq->wqes)[idx];
> struct rte_mbuf *rep = (*rxq->elts)[idx];
> + int len;
clang generates following warning, -it is quite detailed compiler message:
.../drivers/net/mlx5/mlx5_rxtx.c:1327:7: error: variable 'len' is used
uninitialized whenever 'if' condition is false
[-Werror,-Wsometimes-uninitialized]
if (!pkt) {
^~~~
.../drivers/net/mlx5/mlx5_rxtx.c:1384:7: note: uninitialized use occurs here
if (len > DATA_LEN(seg)) {
^~~
.../drivers/net/mlx5/mlx5_rxtx.c:1327:3: note: remove the 'if' if its
condition is always true
if (!pkt) {
^~~~~~~~~~
.../drivers/net/mlx5/mlx5_rxtx.c:1299:10: note: initialize the variable
'len' to silence this warning
int len;
^
= 0
next prev parent reply other threads:[~2016-09-27 17:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-14 8:16 [dpdk-dev] [PATCH] " Nelio Laranjeiro
2016-09-14 8:16 ` Nelio Laranjeiro
2016-09-23 9:15 ` Adrien Mazarguil
2016-09-27 14:11 ` Bruce Richardson
2016-09-27 14:29 ` Nélio Laranjeiro
2016-09-27 14:53 ` [dpdk-dev] [PATCH v2] " Nelio Laranjeiro
2016-09-27 17:03 ` Ferruh Yigit [this message]
2016-09-28 7:01 ` Nélio Laranjeiro
2016-09-28 7:02 ` [dpdk-dev] [PATCH v3] " Nelio Laranjeiro
2016-09-28 8:59 ` Adrien Mazarguil
2016-09-28 12:11 ` [dpdk-dev] [PATCH v4] " Nelio Laranjeiro
2016-10-12 15:12 ` Bruce Richardson
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