netdev - Re: [PATCH 3/3] net: ethernet: add driver for Aurora VLSI NB8800 Ethernet controller

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Date:	Thu, 22 Oct 2015 22:55:49 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Mans Rullgard <mans@...sr.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 3/3] net: ethernet: add driver for Aurora VLSI NB8800
 Ethernet controller

Hi Mans,

[auto build test WARNING on net/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

url:    https://github.com/0day-ci/linux/commits/Mans-Rullgard/devicetree-add-vendor-prefix-for-Aurora-VLSI/20151022-220753
config: x86_64-allmodconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/aurora/nb8800.c: In function 'nb8800_xmit':
>> drivers/net/ethernet/aurora/nb8800.c:381:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     cpsz = (8 - (u32)skb->data) & 7;
                 ^
   In file included from include/linux/dma-mapping.h:5:0,
                    from include/linux/skbuff.h:34,
                    from include/linux/if_ether.h:23,
                    from include/linux/etherdevice.h:25,
                    from drivers/net/ethernet/aurora/nb8800.c:24:
   drivers/net/ethernet/aurora/nb8800.c: In function 'nb8800_probe':
>> drivers/net/ethernet/aurora/nb8800.c:1006:23: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
     dev_info(&pdev->dev, "AU-NB8800 Ethernet at 0x%x\n", res->start);
                          ^
   include/linux/device.h:1166:51: note: in definition of macro 'dev_info'
    #define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg)
                                                      ^

vim +381 drivers/net/ethernet/aurora/nb8800.c

   365	
   366	static int nb8800_xmit(struct sk_buff *skb, struct net_device *dev)
   367	{
   368		struct nb8800_priv *priv = netdev_priv(dev);
   369		struct tx_skb_data *skb_data;
   370		struct tx_buf *tx_buf;
   371		dma_addr_t dma_addr;
   372		unsigned int dma_len;
   373		int cpsz, next;
   374		int frags;
   375	
   376		if (atomic_read(&priv->tx_free) <= NB8800_DESC_LOW) {
   377			netif_stop_queue(dev);
   378			return NETDEV_TX_BUSY;
   379		}
   380	
 > 381		cpsz = (8 - (u32)skb->data) & 7;
   382	
   383		frags = cpsz ? 2 : 1;
   384		atomic_sub(frags, &priv->tx_free);
   385	
   386		dma_len = skb->len - cpsz;
   387		dma_addr = dma_map_single(&dev->dev, skb->data + cpsz,
   388					  dma_len, DMA_TO_DEVICE);
   389	

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Download attachment ".config.gz" of type "application/octet-stream" (50071 bytes)