Re: [patch 1/2] i2c: add master driver for mellanox systems

[kbuild test robot <lkp@intel.com>]

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Hi Vadim,

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on v4.8-rc3 next-20160824]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/vadimp-mellanox-com/i2c-add-master-driver-for-mellanox-systems/20160824-200057
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
config: x86_64-randconfig-s1-08242121 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/i2c/busses/i2c-mlxcpld.c: In function 'mlxcpld_i2c_lpc_write_buf':
>> drivers/i2c/busses/i2c-mlxcpld.c:148: error: implicit declaration of function 'outl'
>> drivers/i2c/busses/i2c-mlxcpld.c:153: error: implicit declaration of function 'outb'
   drivers/i2c/busses/i2c-mlxcpld.c: In function 'mlxcpld_i2c_lpc_read_buf':
>> drivers/i2c/busses/i2c-mlxcpld.c:163: error: implicit declaration of function 'inl'
>> drivers/i2c/busses/i2c-mlxcpld.c:168: error: implicit declaration of function 'inb'
   drivers/i2c/busses/i2c-mlxcpld.c: In function 'mlxcpld_i2c_read_comm':
>> drivers/i2c/busses/i2c-mlxcpld.c:181: error: implicit declaration of function 'inw'
   drivers/i2c/busses/i2c-mlxcpld.c: In function 'mlxcpld_i2c_write_comm':
>> drivers/i2c/busses/i2c-mlxcpld.c:206: error: implicit declaration of function 'outw'

vim +/outl +148 drivers/i2c/busses/i2c-mlxcpld.c

   142	{
   143		int i, nbyte, ndword;
   144	
   145		nbyte = len % 4;
   146		ndword = len / 4;
   147		for (i = 0; i < ndword; i++)
 > 148			outl(*((u32 *)data + i), addr + i * 4);
   149		ndword *= 4;
   150		addr += ndword;
   151		data += ndword;
   152		for (i = 0; i < nbyte; i++)
 > 153			outb(*(data + i), addr + i);
   154	}
   155	
   156	static void mlxcpld_i2c_lpc_read_buf(u8 *data, u8 len, u32 addr)
   157	{
   158		int i, nbyte, ndword;
   159	
   160		nbyte = len % 4;
   161		ndword = len / 4;
   162		for (i = 0; i < ndword; i++)
 > 163			*((u32 *)data + i) = inl(addr + i * 4);
   164		ndword *= 4;
   165		addr += ndword;
   166		data += ndword;
   167		for (i = 0; i < nbyte; i++)
 > 168			*(data + i) = inb(addr + i);
   169	}
   170	
   171	static void mlxcpld_i2c_read_comm(struct mlxcpld_i2c_priv *priv, u8 offs,
   172					  u8 *data, u8 datalen)
   173	{
   174		u32 addr = priv->base_addr + offs;
   175	
   176		switch (datalen) {
   177		case 1:
   178			*(data) = inb(addr);
   179			break;
   180		case 2:
 > 181			*((u16 *)data) = inw(addr);
   182			break;
   183		case 3:
   184			*((u16 *)data) = inw(addr);
   185			*(data + 2) = inb(addr + 2);
   186			break;
   187		case 4:
   188			*((u32 *)data) = inl(addr);
   189			break;
   190		default:
   191			mlxcpld_i2c_lpc_read_buf(data, datalen, addr);
   192			break;
   193		}
   194	}
   195	
   196	static void mlxcpld_i2c_write_comm(struct mlxcpld_i2c_priv *priv, u8 offs,
   197					   u8 *data, u8 datalen)
   198	{
   199		u32 addr = priv->base_addr + offs;
   200	
   201		switch (datalen) {
   202		case 1:
   203			outb(*(data), addr);
   204			break;
   205		case 2:
 > 206			outw(*((u16 *)data), addr);
   207			break;
   208		case 3:
   209			outw(*((u16 *)data), addr);

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