[linux-next:master 1481/11483] drivers/net/ethernet/lantiq_etop.c:265:62: error: 'rx_burst_len' undeclared

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   2376e5fe91bcad74b997d2cc0535abff79ec73c5
commit: 14d4e308e0aa0b78dc7a059716861a4380de3535 [1481/11483] net: lantiq: configure the burst length in ethernet drivers
config: mips-xway_defconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=14d4e308e0aa0b78dc7a059716861a4380de3535
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 14d4e308e0aa0b78dc7a059716861a4380de3535
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   drivers/net/ethernet/lantiq_etop.c: In function 'ltq_etop_hw_init':
>> drivers/net/ethernet/lantiq_etop.c:265:62: error: 'rx_burst_len' undeclared (first use in this function)
     265 |         ltq_dma_init_port(DMA_PORT_ETOP, priv->tx_burst_len, rx_burst_len);
         |                                                              ^~~~~~~~~~~~
   drivers/net/ethernet/lantiq_etop.c:265:62: note: each undeclared identifier is reported only once for each function it appears in
   drivers/net/ethernet/lantiq_etop.c: In function 'ltq_etop_probe':
>> drivers/net/ethernet/lantiq_etop.c:673:15: error: implicit declaration of function 'device_property_read_u32' [-Werror=implicit-function-declaration]
     673 |         err = device_property_read_u32(&pdev->dev, "lantiq,tx-burst-length", &priv->tx_burst_len);
         |               ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/ethernet/lantiq_etop.c: At top level:
   drivers/net/ethernet/lantiq_etop.c:730:1: warning: no previous prototype for 'init_ltq_etop' [-Wmissing-prototypes]
     730 | init_ltq_etop(void)
         | ^~~~~~~~~~~~~
   drivers/net/ethernet/lantiq_etop.c: In function 'ltq_etop_hw_init':
   drivers/net/ethernet/lantiq_etop.c:276:25: warning: ignoring return value of 'request_irq' declared with attribute 'warn_unused_result' [-Wunused-result]
     276 |                         request_irq(irq, ltq_etop_dma_irq, 0, "etop_tx", priv);
         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/ethernet/lantiq_etop.c:284:25: warning: ignoring return value of 'request_irq' declared with attribute 'warn_unused_result' [-Wunused-result]
     284 |                         request_irq(irq, ltq_etop_dma_irq, 0, "etop_rx", priv);
         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/rx_burst_len +265 drivers/net/ethernet/lantiq_etop.c

   236	
   237	static int
   238	ltq_etop_hw_init(struct net_device *dev)
   239	{
   240		struct ltq_etop_priv *priv = netdev_priv(dev);
   241		int i;
   242	
   243		ltq_pmu_enable(PMU_PPE);
   244	
   245		switch (priv->pldata->mii_mode) {
   246		case PHY_INTERFACE_MODE_RMII:
   247			ltq_etop_w32_mask(ETOP_MII_MASK,
   248				ETOP_MII_REVERSE, LTQ_ETOP_CFG);
   249			break;
   250	
   251		case PHY_INTERFACE_MODE_MII:
   252			ltq_etop_w32_mask(ETOP_MII_MASK,
   253				ETOP_MII_NORMAL, LTQ_ETOP_CFG);
   254			break;
   255	
   256		default:
   257			netdev_err(dev, "unknown mii mode %d\n",
   258				priv->pldata->mii_mode);
   259			return -ENOTSUPP;
   260		}
   261	
   262		/* enable crc generation */
   263		ltq_etop_w32(PPE32_CGEN, LQ_PPE32_ENET_MAC_CFG);
   264	
 > 265		ltq_dma_init_port(DMA_PORT_ETOP, priv->tx_burst_len, rx_burst_len);
   266	
   267		for (i = 0; i < MAX_DMA_CHAN; i++) {
   268			int irq = LTQ_DMA_CH0_INT + i;
   269			struct ltq_etop_chan *ch = &priv->ch[i];
   270	
   271			ch->idx = ch->dma.nr = i;
   272			ch->dma.dev = &priv->pdev->dev;
   273	
   274			if (IS_TX(i)) {
   275				ltq_dma_alloc_tx(&ch->dma);
   276				request_irq(irq, ltq_etop_dma_irq, 0, "etop_tx", priv);
   277			} else if (IS_RX(i)) {
   278				ltq_dma_alloc_rx(&ch->dma);
   279				for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM;
   280						ch->dma.desc++)
   281					if (ltq_etop_alloc_skb(ch))
   282						return -ENOMEM;
   283				ch->dma.desc = 0;
   284				request_irq(irq, ltq_etop_dma_irq, 0, "etop_rx", priv);
   285			}
   286			ch->dma.irq = irq;
   287		}
   288		return 0;
   289	}
   290	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip


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