Hi Michael,

I love your patch! Perhaps something to improve:

[auto build test WARNING on v4.16]
[cannot apply to net-next/master net/master v4.17-rc1 next-20180417]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Michael-Schmitz/New-network-driver-for-Amiga-X-Surf-100-m68k/20180417-141150
config: arm-samsung (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All warnings (new ones prefixed by >>):

   In file included from arch/arm/mach-s3c24xx/mach-anubis.c:42:0:
>> include/net/ax88796.h:35:11: warning: 'struct sk_buff' declared inside parameter list will not be visible outside of this definition or declaration
       struct sk_buff *skb, int ring_offset);
              ^~~~~~~

vim +35 include/net/ax88796.h

    20	
    21	struct ax_plat_data {
    22		unsigned int	 flags;
    23		unsigned char	 wordlength;	/* 1 or 2 */
    24		unsigned char	 dcr_val;	/* default value for DCR */
    25		unsigned char	 rcr_val;	/* default value for RCR */
    26		unsigned char	 gpoc_val;	/* default value for GPOC */
    27		u32		*reg_offsets;	/* register offsets */
    28		u8		*mac_addr;	/* MAC addr (only used when
    29						   AXFLG_MAC_FROMPLATFORM is used */
    30	
    31		/* uses default ax88796 buffer if set to NULL */
    32		void (*block_output)(struct net_device *dev, int count,
    33				const unsigned char *buf, int star_page);
    34		void (*block_input)(struct net_device *dev, int count,
  > 35				struct sk_buff *skb, int ring_offset);
    36	};
    37	

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