Hi devendra, [auto build test WARNING on staging/staging-testing] [also build test WARNING on v4.9 next-20161219] [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/devendra-sharma/staging-comedi-cb_pcidas64-Fixed-coding-issue-about-multiple-line-dereferencing/20161220-020116 config: x86_64-randconfig-x017-201651 (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 warnings (new ones prefixed by >>): drivers/staging/comedi/drivers/cb_pcidas64.c: In function 'setup_channel_queue': >> drivers/staging/comedi/drivers/cb_pcidas64.c:2478:5: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] unsigned int ch = cmd->chanlist[i]; ^~~~~~~~ vim +2478 drivers/staging/comedi/drivers/cb_pcidas64.c 2462 /* use external queue */ 2463 if (dev->write_subdev && dev->write_subdev->busy) { 2464 warn_external_queue(dev); 2465 return -EBUSY; 2466 } 2467 devpriv->hw_config_bits |= EXT_QUEUE_BIT; 2468 writew(devpriv->hw_config_bits, 2469 devpriv->main_iobase + HW_CONFIG_REG); 2470 /* clear DAC buffer to prevent weird interactions */ 2471 writew(0, 2472 devpriv->main_iobase + DAC_BUFFER_CLEAR_REG); 2473 /* clear queue pointer */ 2474 writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); 2475 /* load external queue */ 2476 for (i = 0; i < cmd->chanlist_len; i++) { 2477 bits = 0; > 2478 unsigned int ch = cmd->chanlist[i]; 2479 /* set channel */ 2480 bits |= adc_chan_bits(CR_CHAN(ch)); 2481 /* set gain */ 2482 bits |= ai_range_bits_6xxx(dev, 2483 CR_RANGE(ch)); 2484 /* set single-ended / differential */ 2485 bits |= se_diff_bit_6xxx(dev, 2486 CR_AREF(ch) == --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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