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Message-ID: <202310242300.y8Z3ImgQ-lkp@intel.com>
Date:   Tue, 24 Oct 2023 23:55:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Romain Gantois <romain.gantois@...tlin.com>, davem@...emloft.net,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Romain Gantois <romain.gantois@...tlin.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        thomas.petazzoni@...tlin.com, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        Vladimir Oltean <vladimir.oltean@....com>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Robert Marko <robert.marko@...tura.hr>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: Re: [PATCH net-next 3/5] net: ipqess: introduce the Qualcomm IPQESS
 driver

Hi Romain,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Romain-Gantois/net-dt-bindings-Introduce-the-Qualcomm-IPQESS-Ethernet-switch/20231023-235323
base:   net-next/main
patch link:    https://lore.kernel.org/r/20231023155013.512999-4-romain.gantois%40bootlin.com
patch subject: [PATCH net-next 3/5] net: ipqess: introduce the Qualcomm IPQESS driver
config: arc-allmodconfig (https://download.01.org/0day-ci/archive/20231024/202310242300.y8Z3ImgQ-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231024/202310242300.y8Z3ImgQ-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310242300.y8Z3ImgQ-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c: In function 'ipqess_edma_rx_buf_prepare':
>> drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c:156:25: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     156 |                         (struct ipqess_edma_rx_desc *)buf->dma;
         |                         ^


vim +156 drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c

   139	
   140	static int ipqess_edma_rx_buf_prepare(struct ipqess_edma_buf *buf,
   141					      struct ipqess_edma_rx_ring *rx_ring)
   142	{
   143		memset(buf->skb->data, 0, sizeof(struct ipqess_edma_rx_desc));
   144	
   145		buf->dma = dma_map_single(rx_ring->ppdev, buf->skb->data,
   146					  IPQESS_EDMA_RX_HEAD_BUFF_SIZE,
   147					  DMA_FROM_DEVICE);
   148		if (dma_mapping_error(rx_ring->ppdev, buf->dma)) {
   149			dev_kfree_skb_any(buf->skb);
   150			buf->skb = NULL;
   151			return -EFAULT;
   152		}
   153	
   154		buf->length = IPQESS_EDMA_RX_HEAD_BUFF_SIZE;
   155		rx_ring->hw_desc[rx_ring->head] =
 > 156				(struct ipqess_edma_rx_desc *)buf->dma;
   157		rx_ring->head = (rx_ring->head + 1) % IPQESS_EDMA_RX_RING_SIZE;
   158	
   159		ipqess_edma_m32(rx_ring->edma, IPQESS_EDMA_RFD_PROD_IDX_BITS,
   160				(rx_ring->head + IPQESS_EDMA_RX_RING_SIZE - 1)
   161				% IPQESS_EDMA_RX_RING_SIZE,
   162				IPQESS_EDMA_REG_RFD_IDX_Q(rx_ring->idx));
   163	
   164		return 0;
   165	}
   166	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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