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SubjectRe: [PATCH v2 2/2] media: rc: introduce Meson IR blaster driver
Hi Viktor,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v5.13 next-20210707]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Viktor-Prutyanov/media-rc-add-support-for-Amlogic-Meson-IR-blaster/20210707-221429
base: git://linuxtv.org/media_tree.git master
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/42877697e4d06c6c44aa04f0ee1936579cbbc47c
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Viktor-Prutyanov/media-rc-add-support-for-Amlogic-Meson-IR-blaster/20210707-221429
git checkout 42877697e4d06c6c44aa04f0ee1936579cbbc47c
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/media/rc/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

In file included from include/linux/printk.h:409,
from include/linux/kernel.h:17,
from include/linux/list.h:9,
from include/linux/rculist.h:10,
from include/linux/pid.h:5,
from include/linux/sched.h:14,
from include/linux/ratelimit.h:6,
from include/linux/dev_printk.h:16,
from include/linux/device.h:15,
from drivers/media/rc/meson-irblaster.c:23:
drivers/media/rc/meson-irblaster.c: In function 'irb_send':
>> drivers/media/rc/meson-irblaster.c:218:56: error: 'len' undeclared (first use in this function)
218 | dev_dbg(irb->dev, "tx started, buffer length = %u\n", len);
| ^~~
include/linux/dynamic_debug.h:134:15: note: in definition of macro '__dynamic_func_call'
134 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:166:2: note: in expansion of macro '_dynamic_func_call'
166 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
drivers/media/rc/meson-irblaster.c:218:2: note: in expansion of macro 'dev_dbg'
218 | dev_dbg(irb->dev, "tx started, buffer length = %u\n", len);
| ^~~~~~~
drivers/media/rc/meson-irblaster.c:218:56: note: each undeclared identifier is reported only once for each function it appears in
218 | dev_dbg(irb->dev, "tx started, buffer length = %u\n", len);
| ^~~
include/linux/dynamic_debug.h:134:15: note: in definition of macro '__dynamic_func_call'
134 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:166:2: note: in expansion of macro '_dynamic_func_call'
166 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg'
123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
drivers/media/rc/meson-irblaster.c:218:2: note: in expansion of macro 'dev_dbg'
218 | dev_dbg(irb->dev, "tx started, buffer length = %u\n", len);
| ^~~~~~~


vim +/len +218 drivers/media/rc/meson-irblaster.c

213
214 static void irb_send(struct irblaster_dev *irb)
215 {
216 reinit_completion(&irb->completion);
217
> 218 dev_dbg(irb->dev, "tx started, buffer length = %u\n", len);
219 irb_send_buffer(irb);
220 wait_for_completion_interruptible(&irb->completion);
221 dev_dbg(irb->dev, "tx completed\n");
222 }
223

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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