Hi Paul,
[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]
config: cris-allyesconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=cris
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
All warnings (new ones prefixed by >>):
drivers/iio/dac/ad5064.c: In function 'ad5064_probe':
>> drivers/iio/dac/ad5064.c:468:3: warning: 'ext_vref' may be used uninitialized in this function [-Wuninitialized]
vim +/ext_vref +468 drivers/iio/dac/ad5064.c
452
453 indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
454 if (indio_dev == NULL)
455 return -ENOMEM;
456
457 st = iio_priv(indio_dev);
458 dev_set_drvdata(dev, indio_dev);
459
460 st->chip_info = &ad5064_chip_info_tbl[type];
461 st->dev = dev;
462 st->write = write;
463
464 for (i = 0; i < ad5064_num_vref(st); ++i)
465 st->vref_reg[i].supply = ad5064_vref_name(st, i);
466
467 if (dev->of_node) {
> 468 for (i = 0; ext_vref && i < ad5064_num_vref(st); ++i)
469 ext_vref = of_property_read_bool(dev->of_node,
470 ad5064_vref_name(st, i));
471 } else {
472 struct ad5064_platform_data *pdata = dev->platform_data;
473
474 ext_vref = pdata && pdata->use_external_ref;
475 }
476
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0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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