linux-kernel - Re: [PATCH net-next v5 2/5] net: ipqess: introduce the Qualcomm IPQESS driver

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Message-ID: <202210220120.50uv2XtD-lkp@intel.com>
Date:   Sat, 22 Oct 2022 01:59:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>,
        davem@...emloft.net, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc:     kbuild-all@...ts.01.org,
        Maxime Chevallier <maxime.chevallier@...tlin.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>
Subject: Re: [PATCH net-next v5 2/5] net: ipqess: introduce the Qualcomm
 IPQESS driver

Hi Maxime,

I love your patch! Perhaps something to improve:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Maxime-Chevallier/net-ipqess-introduce-Qualcomm-IPQESS-driver/20221021-204717
patch link:    https://lore.kernel.org/r/20221021124556.100445-3-maxime.chevallier%40bootlin.com
patch subject: [PATCH net-next v5 2/5] net: ipqess: introduce the Qualcomm IPQESS driver
config: x86_64-allyesconfig
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/0444279489c24f9afd9b1fb11bd1a927053b73e0
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Maxime-Chevallier/net-ipqess-introduce-Qualcomm-IPQESS-driver/20221021-204717
        git checkout 0444279489c24f9afd9b1fb11bd1a927053b73e0
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/ethernet/qualcomm/ipqess/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/device.h:15,
                    from include/linux/dma-mapping.h:7,
                    from include/linux/skbuff.h:31,
                    from include/net/net_namespace.h:43,
                    from include/linux/netdevice.h:38,
                    from include/linux/if_vlan.h:10,
                    from drivers/net/ethernet/qualcomm/ipqess/ipqess.c:12:
   drivers/net/ethernet/qualcomm/ipqess/ipqess.c: In function 'ipqess_rx_buf_prepare':
>> drivers/net/ethernet/qualcomm/ipqess/ipqess.c:180:30: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=]
     180 |                              "IPQESS DMA mapping failed for linear address %x",
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                              ^~~
   include/linux/dev_printk.h:144:56: note: in expansion of macro 'dev_fmt'
     144 |         dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                        ^~~~~~~
   include/linux/dev_printk.h:174:17: note: in expansion of macro 'dev_err'
     174 |                 dev_level(dev, fmt, ##__VA_ARGS__);                     \
         |                 ^~~~~~~~~
   include/linux/dev_printk.h:192:9: note: in expansion of macro 'dev_level_once'
     192 |         dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__)
         |         ^~~~~~~~~~~~~~
   drivers/net/ethernet/qualcomm/ipqess/ipqess.c:179:17: note: in expansion of macro 'dev_err_once'
     179 |                 dev_err_once(rx_ring->ppdev,
         |                 ^~~~~~~~~~~~
   drivers/net/ethernet/qualcomm/ipqess/ipqess.c:180:77: note: format string is defined here
     180 |                              "IPQESS DMA mapping failed for linear address %x",
         |                                                                            ~^
         |                                                                             |
         |                                                                             unsigned int
         |                                                                            %llx
   drivers/net/ethernet/qualcomm/ipqess/ipqess.c: In function 'ipqess_axi_probe':
>> drivers/net/ethernet/qualcomm/ipqess/ipqess.c:1189:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1189 |         netdev->base_addr = (u32)ess->hw_addr;
         |                             ^


vim +180 drivers/net/ethernet/qualcomm/ipqess/ipqess.c

   170	
   171	static int ipqess_rx_buf_prepare(struct ipqess_buf *buf,
   172					 struct ipqess_rx_ring *rx_ring)
   173	{
   174		memset(buf->skb->data, 0, sizeof(struct ipqess_rx_desc));
   175	
   176		buf->dma = dma_map_single(rx_ring->ppdev, buf->skb->data,
   177					  IPQESS_RX_HEAD_BUFF_SIZE, DMA_FROM_DEVICE);
   178		if (dma_mapping_error(rx_ring->ppdev, buf->dma)) {
   179			dev_err_once(rx_ring->ppdev,
 > 180				     "IPQESS DMA mapping failed for linear address %x",
   181				     buf->dma);
   182			dev_kfree_skb_any(buf->skb);
   183			buf->skb = NULL;
   184			return -EFAULT;
   185		}
   186	
   187		buf->length = IPQESS_RX_HEAD_BUFF_SIZE;
   188		rx_ring->hw_desc[rx_ring->head] = (struct ipqess_rx_desc *)buf->dma;
   189		rx_ring->head = (rx_ring->head + 1) % IPQESS_RX_RING_SIZE;
   190	
   191		ipqess_m32(rx_ring->ess, IPQESS_RFD_PROD_IDX_BITS,
   192			   (rx_ring->head + IPQESS_RX_RING_SIZE - 1) % IPQESS_RX_RING_SIZE,
   193			   IPQESS_REG_RFD_IDX_Q(rx_ring->idx));
   194	
   195		return 0;
   196	}
   197	

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