Hi Luis,

[auto build test ERROR on v4.9-rc5]
[also build test ERROR on next-20161117]
[cannot apply to wsa/i2c/for-next]
[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/Luis-Oliveira/i2c-designware-Add-slave-support/20161118-193236
config: x86_64-randconfig-s4-11190538 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All error/warnings (new ones prefixed by >>):

   drivers/i2c/busses/i2c-designware-slave.c: In function 
'i2c_dw_irq_handler_slave':
>> drivers/i2c/busses/i2c-designware-slave.c:295:3: error: implicit declaration 
>> of function 'i2c_slave_event' [-Werror=implicit-function-declaration]
      i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
      ^~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:295:31: error: 
>> 'I2C_SLAVE_WRITE_REQUESTED' undeclared (first use in this function)
      i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
                                  ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-designware-slave.c:295:31: note: each undeclared 
identifier is reported only once for each function it appears in
>> drivers/i2c/busses/i2c-designware-slave.c:302:6: error: 
>> 'I2C_SLAVE_WRITE_RECEIVED' undeclared (first use in this function)
         I2C_SLAVE_WRITE_RECEIVED, &val)) {
         ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:314:7: error: 
>> 'I2C_SLAVE_READ_REQUESTED' undeclared (first use in this function)
          I2C_SLAVE_READ_REQUESTED, &val))
          ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:320:36: error: 
>> 'I2C_SLAVE_READ_PROCESSED' undeclared (first use in this function)
      if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
                                       ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/i2c/busses/i2c-designware-slave.c:324:31: error: 'I2C_SLAVE_STOP' 
>> undeclared (first use in this function)
      i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
                                  ^~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-designware-slave.c: At top level:
>> drivers/i2c/busses/i2c-designware-slave.c:370:2: error: unknown field 
>> 'reg_slave' specified in initializer
     .reg_slave = i2c_dw_reg_slave,
     ^
>> drivers/i2c/busses/i2c-designware-slave.c:370:15: warning: excess elements 
>> in struct initializer
     .reg_slave = i2c_dw_reg_slave,
                  ^~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-designware-slave.c:370:15: note: (near initialization 
for 'i2c_dw_algo')
>> drivers/i2c/busses/i2c-designware-slave.c:371:2: error: unknown field 
>> 'unreg_slave' specified in initializer
     .unreg_slave = i2c_dw_unreg_slave,
     ^
   drivers/i2c/busses/i2c-designware-slave.c:371:17: warning: excess elements 
in struct initializer
     .unreg_slave = i2c_dw_unreg_slave,
                    ^~~~~~~~~~~~~~~~~~
   drivers/i2c/busses/i2c-designware-slave.c:371:17: note: (near initialization 
for 'i2c_dw_algo')
   cc1: some warnings being treated as errors

vim +/i2c_slave_event +295 drivers/i2c/busses/i2c-designware-slave.c

   289                  dw_readl(dev, DW_IC_CLR_START_DET);
   290          if (stat & DW_IC_INTR_ACTIVITY)
   291                  dw_readl(dev, DW_IC_CLR_ACTIVITY);
   292          if (stat & DW_IC_INTR_RX_OVER)
   293                  dw_readl(dev, DW_IC_CLR_RX_OVER);
   294          if ((stat & DW_IC_INTR_RX_FULL) && (stat & DW_IC_INTR_STOP_DET))
 > 295                  i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, 
 > &val);
   296  
   297          if (slave_activity) {
   298                  if (stat & DW_IC_INTR_RD_REQ) {
   299                          if (stat & DW_IC_INTR_RX_FULL) {
   300                                  val = dw_readl(dev, DW_IC_DATA_CMD);
   301                                  if (!i2c_slave_event(dev->slave,
 > 302                                   I2C_SLAVE_WRITE_RECEIVED, &val)) {
   303                                          dev_dbg(dev->dev, "Byte %X 
acked! ",
   304                                           val);
   305                                  }
   306                                  dw_readl(dev, DW_IC_CLR_RD_REQ);
   307                                  stat = 
i2c_dw_read_clear_intrbits_slave(dev);
   308                          } else {
   309                                  dw_readl(dev, DW_IC_CLR_RD_REQ);
   310                                  dw_readl(dev, DW_IC_CLR_RX_UNDER);
   311                                  stat = 
i2c_dw_read_clear_intrbits_slave(dev);
   312                          }
   313                          if (!i2c_slave_event(dev->slave,
 > 314                                           I2C_SLAVE_READ_REQUESTED, 
 > &val))
   315                                  dw_writel(dev, val, DW_IC_DATA_CMD);
   316                  }
   317          }
   318  
   319          if (stat & DW_IC_INTR_RX_DONE) {
 > 320                  if (!i2c_slave_event(dev->slave, 
 > I2C_SLAVE_READ_PROCESSED,
   321                   &val))
   322                          dw_readl(dev, DW_IC_CLR_RX_DONE);
   323  
 > 324                  i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
   325                  stat = i2c_dw_read_clear_intrbits_slave(dev);
   326                  return true;
   327          }
   328  
   329          if (stat & DW_IC_INTR_RX_FULL) {
   330                  val = dw_readl(dev, DW_IC_DATA_CMD);
   331                  if (!i2c_slave_event(dev->slave, 
I2C_SLAVE_WRITE_RECEIVED,
   332                   &val))
   333                          dev_dbg(dev->dev, "Byte %X acked! ", val);
   334          } else {
   335                  i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
   336                  stat = i2c_dw_read_clear_intrbits_slave(dev);
   337          }
   338  
   339          if (stat & DW_IC_INTR_TX_OVER) {
   340                  dw_readl(dev, DW_IC_CLR_TX_OVER);
   341                  return true;
   342          }
   343          return true;
   344  }
   345  
   346  static irqreturn_t i2c_dw_isr_slave(int this_irq, void *dev_id)
   347  {
   348          struct dw_i2c_dev *dev = dev_id;
   349          u32 stat, enabled, mode;
   350  
   351          enabled = dw_readl(dev, DW_IC_ENABLE);
   352          mode = dw_readl(dev, DW_IC_CON);
   353          stat = dw_readl(dev, DW_IC_RAW_INTR_STAT);
   354  
   355          dev_dbg(dev->dev, "%s: enabled=%#x stat=%#x\n", __func__, 
enabled,
   356           stat);
   357          if (!enabled || !(stat & ~DW_IC_INTR_ACTIVITY))
   358                  return IRQ_NONE;
   359  
   360          stat = i2c_dw_read_clear_intrbits_slave(dev);
   361          if (!i2c_dw_irq_handler_slave(dev))
   362                  return IRQ_NONE;
   363  
   364          complete(&dev->cmd_complete);
   365          return IRQ_HANDLED;
   366  }
   367  
   368  static struct i2c_algorithm i2c_dw_algo = {
   369          .functionality  = i2c_dw_func,
 > 370          .reg_slave      = i2c_dw_reg_slave,
 > 371          .unreg_slave    = i2c_dw_unreg_slave,
   372  };
   373  
   374  void i2c_dw_disable_slave(struct dw_i2c_dev *dev)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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