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DIR:OUT; SFP:1101; SCL:1; SRVR:BYAPR18MB2438; H:BYAPR18MB2838.namprd18.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: marvell.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: OfjDXf3jfnLgrwpTzFWo/JB+sIjaYEB8bQqccctjyWgg9z8EBZFohx+2W3n0xtDusstRcgs7tqAMBwgAudoAy47zcTNDUlLkJVDKwmP9FvAOMkp/CCOTWLTiMYXq9w+Bzw8r4RcihUeBoZEJRagxfxvrjzqCJVENbz1pjnM/YB1kRENpaht2u8UXdP/g19+wgI9eABTZFHHbh4i3aiCgjlvHOcG4t1EdflqsIdYvurm6A/vf5TMBiHKdQ884xsEhEylxGXDiZsjENumEd+GMNpiDHTUtBj+zlgG36RwwUTvm9uqLk1hKcI96AnlIPU0Cb4l5S9fBLedZi7h3kXVqy5WcDgvLf+duJZQmKJePiIpKTzOjrE4RarthIPn/GG7yz0WCisiIr5RB4ee5WgHlbnxHLgffnFkuZhaweDIzOxY= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 88d4c3f9-e664-4bdb-55a6-08d7482f96a5 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Oct 2019 18:29:12.2656 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: YvOqAVWGA6jEks+KmzYtca5/EVeeLwoDMDH2WAwsxThQUBZ5LBvv9ZK5cBuO6DBJ1WHb1im6Ea6AF4hHHaK61w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR18MB2438 X-OriginatorOrg: marvell.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-03_07:2019-10-03,2019-10-03 signatures=0 Subject: Re: [dpdk-stable] [PATCH] net/qede: only access sw rx ring index for debug X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" >From: David Marchand >Sent: Friday, September 27, 2019 4:29 AM > >---------------------------------------------------------------------- >Caught by clang, this idx value is only used for a debug message when the >mbufs allocation fails. >No need to use idx as a temporary storage. > >Fixes: 8f2312474529 ("net/qede: fix performance bottleneck in Rx path") >Cc: stable@dpdk.org > >Signed-off-by: David Marchand >--- Acked-by: Rasesh Mody Thanks! -Rasesh > drivers/net/qede/qede_rxtx.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > >diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c >index c38cbb9..1fbeba2 100644 >--- a/drivers/net/qede/qede_rxtx.c >+++ b/drivers/net/qede/qede_rxtx.c >@@ -46,8 +46,6 @@ static inline int qede_alloc_rx_bulk_mbufs(struct >qede_rx_queue *rxq, int count) > int i, ret =3D 0; > uint16_t idx; > >- idx =3D rxq->sw_rx_prod & NUM_RX_BDS(rxq); >- > if (count > QEDE_MAX_BULK_ALLOC_COUNT) > count =3D QEDE_MAX_BULK_ALLOC_COUNT; > >@@ -56,7 +54,9 @@ static inline int qede_alloc_rx_bulk_mbufs(struct >qede_rx_queue *rxq, int count) > PMD_RX_LOG(ERR, rxq, > "Failed to allocate %d rx buffers " > "sw_rx_prod %u sw_rx_cons %u mp entries %u free >%u", >- count, idx, rxq->sw_rx_cons & NUM_RX_BDS(rxq), >+ count, >+ rxq->sw_rx_prod & NUM_RX_BDS(rxq), >+ rxq->sw_rx_cons & NUM_RX_BDS(rxq), > rte_mempool_avail_count(rxq->mb_pool), > rte_mempool_in_use_count(rxq->mb_pool)); > return -ENOMEM; >-- >1.8.3.1