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SubjectRe: [PATCH v2 4/7] iio: adc: adi-axi-adc: add support for AXI ADC IP core
Date
On Thu, 2020-02-27 at 07:02 +0800, kbuild test robot wrote:
> [External]
>
> Hi Alexandru,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on iio/togreg]
> [also build test WARNING on linus/master v5.6-rc3 next-20200226]
> [cannot apply to linux/master]
> [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 https://stackoverflow.com/a/37406982
> ]
>
> url:
> https://github.com/0day-ci/linux/commits/Alexandru-Ardelean/iio-adi-axi-adc-ad9647-Add-support-for-AD9467-ADC/20200227-030546
> base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
> config: riscv-allyesconfig (attached as .config)
> compiler: riscv64-linux-gcc (GCC) 7.5.0
> reproduce:
> wget
> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
> ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> GCC_VERSION=7.5.0 make.cross ARCH=riscv
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> drivers/iio/buffer/industrialio-buffer-dmaengine.c: In function
> 'iio_dmaengine_buffer_get_length_align':
> > > drivers/iio/buffer/industrialio-buffer-dmaengine.c:137:24: warning: format
> > > '%u' expects argument of type 'unsigned int', but argument 3 has type
> > > 'size_t {aka long unsigned int}' [-Wformat=]
> return sprintf(buf, "%u\n", dmaengine_buffer->align);
> ~^ ~~~~~~~~~~~~~~~~~~~~~~~
> %lu

Though the warning may be valid, I am bit puzzled as to why it's complaining for
this patch specifically.
This patch does not touch the file directly.

I'll send a fix for this.

>
> vim +137 drivers/iio/buffer/industrialio-buffer-dmaengine.c
>
> 2d6ca60f328450 Lars-Peter Clausen 2015-10-13 129
> 4538c185680996 Lars-Peter Clausen 2019-12-11 130 static ssize_t
> iio_dmaengine_buffer_get_length_align(struct device *dev,
> 4538c185680996 Lars-Peter Clausen 2019-12-11 131 struct device_attribute
> *attr, char *buf)
> 4538c185680996 Lars-Peter Clausen 2019-12-11 132 {
> 4538c185680996 Lars-Peter Clausen 2019-12-11 133 struct iio_dev
> *indio_dev = dev_to_iio_dev(dev);
> 4538c185680996 Lars-Peter Clausen 2019-12-11 134 struct dmaengine_buffer
> *dmaengine_buffer =
> 4538c185680996 Lars-Peter Clausen 2019-12-11 135 iio_buffer_to_dm
> aengine_buffer(indio_dev->buffer);
> 4538c185680996 Lars-Peter Clausen 2019-12-11 136
> 4538c185680996 Lars-Peter Clausen 2019-12-11 @137 return sprintf(buf,
> "%u\n", dmaengine_buffer->align);
> 4538c185680996 Lars-Peter Clausen 2019-12-11 138 }
> 4538c185680996 Lars-Peter Clausen 2019-12-11 139
>
> :::::: The code at line 137 was first introduced by commit
> :::::: 4538c185680996d7328beac629dbdb7dd3f8f34e iio: buffer-dmaengine: Report
> buffer length requirements
>
> :::::: TO: Lars-Peter Clausen <lars@metafoo.de>
> :::::: CC: Jonathan Cameron <Jonathan.Cameron@huawei.com>
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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