Re: [PATCH] twist: allow converting pr_devel()/pr_debug() into printk(KERN_DEBUG)

From: kbuild test robot
Date: Wed May 27 2020 - 06:00:37 EST

Hi Tetsuo,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20200519]
[cannot apply to linus/master linux/master pmladek/for-next v5.7-rc6 v5.7-rc5 v5.7-rc4 v5.7-rc7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see]

base: fb57b1fabcb28f358901b2df90abd2b48abc1ca8
config: powerpc-allmodconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from include/linux/device.h:15,
from include/linux/acpi.h:15,
from include/linux/i2c.h:13,
from drivers/iio/adc/ina2xx-adc.c:24:
drivers/iio/adc/ina2xx-adc.c: In function 'ina2xx_buffer_enable':
include/linux/dev_printk.h:115:2: error: implicit declaration of function 'dynamic_dev_dbg' [-Werror=implicit-function-declaration]
115 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
>> drivers/iio/adc/ina2xx-adc.c:834:2: note: in expansion of macro 'dev_dbg'
834 | dev_dbg(&indio_dev->dev, "Enabling buffer w/ scan_mask %02x, freq = %d, avg =%un",
| ^~~~~~~
cc1: some warnings being treated as errors

vim +/dev_dbg +834 drivers/iio/adc/ina2xx-adc.c

c43a102e67db99c Marc Titinger 2015-12-07 827
c43a102e67db99c Marc Titinger 2015-12-07 828 static int ina2xx_buffer_enable(struct iio_dev *indio_dev)
c43a102e67db99c Marc Titinger 2015-12-07 829 {
c43a102e67db99c Marc Titinger 2015-12-07 830 struct ina2xx_chip_info *chip = iio_priv(indio_dev);
c43a102e67db99c Marc Titinger 2015-12-07 831 unsigned int sampling_us = SAMPLING_PERIOD(chip);
7d6cd21d82bacab Akinobu Mita 2018-06-25 832 struct task_struct *task;
c43a102e67db99c Marc Titinger 2015-12-07 833
1961bce76452938 Andrew F. Davis 2016-02-24 @834 dev_dbg(&indio_dev->dev, "Enabling buffer w/ scan_mask %02x, freq = %d, avg =%u\n",
c43a102e67db99c Marc Titinger 2015-12-07 835 (unsigned int)(*indio_dev->active_scan_mask),
c43a102e67db99c Marc Titinger 2015-12-07 836 1000000 / sampling_us, chip->avg);
c43a102e67db99c Marc Titinger 2015-12-07 837
1961bce76452938 Andrew F. Davis 2016-02-24 838 dev_dbg(&indio_dev->dev, "Expected work period: %u us\n", sampling_us);
1961bce76452938 Andrew F. Davis 2016-02-24 839 dev_dbg(&indio_dev->dev, "Async readout mode: %d\n",
1961bce76452938 Andrew F. Davis 2016-02-24 840 chip->allow_async_readout);
c43a102e67db99c Marc Titinger 2015-12-07 841
7d6cd21d82bacab Akinobu Mita 2018-06-25 842 task = kthread_create(ina2xx_capture_thread, (void *)indio_dev,
46294cd948d530d Marc Titinger 2015-12-11 843 "%s:%d-%uus", indio_dev->name, indio_dev->id,
46294cd948d530d Marc Titinger 2015-12-11 844 sampling_us);
7d6cd21d82bacab Akinobu Mita 2018-06-25 845 if (IS_ERR(task))
7d6cd21d82bacab Akinobu Mita 2018-06-25 846 return PTR_ERR(task);
7d6cd21d82bacab Akinobu Mita 2018-06-25 847
7d6cd21d82bacab Akinobu Mita 2018-06-25 848 get_task_struct(task);
7d6cd21d82bacab Akinobu Mita 2018-06-25 849 wake_up_process(task);
7d6cd21d82bacab Akinobu Mita 2018-06-25 850 chip->task = task;
c43a102e67db99c Marc Titinger 2015-12-07 851
7d6cd21d82bacab Akinobu Mita 2018-06-25 852 return 0;
c43a102e67db99c Marc Titinger 2015-12-07 853 }
c43a102e67db99c Marc Titinger 2015-12-07 854

:::::: The code at line 834 was first introduced by commit
:::::: 1961bce76452938eed8f797b7d96ab5f3c611525 iio: ina2xx: Remove trace_printk debug statments

:::::: TO: Andrew F. Davis <afd@xxxxxx>
:::::: CC: Jonathan Cameron <jic23@xxxxxxxxxx>

0-DAY CI Kernel Test Service, Intel Corporation

Attachment: .config.gz
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