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SubjectRe: [PATCH v7] staging: adis16060_core: Replace mlock with buf_lock and refactor code
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On 22/03/17 20:00, kbuild test robot wrote:
> Hi simran,
>
> [auto build test WARNING on iio/togreg]
> [also build test WARNING on v4.11-rc3 next-20170322]
> [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/simran-singhal/staging-adis16060_core-Replace-mlock-with-buf_lock-and-refactor-code/20170323-031726
> base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
> config: x86_64-randconfig-s0-03230201 (attached as .config)
> compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All warnings (new ones prefixed by >>):
>
> drivers/staging/iio/gyro/adis16060_core.c: In function 'adis16060_read_raw':
>>> drivers/staging/iio/gyro/adis16060_core.c:79: warning: unused variable 'st'
Already fixed in V8 which has been applied to the togreg branch of iio.git.

Thanks,
Jonathan
>
> vim +/st +79 drivers/staging/iio/gyro/adis16060_core.c
>
> 63 if (!ret)
> 64 *val = ((st->buf[0] & 0x3) << 12) |
> 65 (st->buf[1] << 4) |
> 66 ((st->buf[2] >> 4) & 0xF);
> 67 mutex_unlock(&st->buf_lock);
> 68
> 69 return ret;
> 70 }
> 71
> 72 static int adis16060_read_raw(struct iio_dev *indio_dev,
> 73 struct iio_chan_spec const *chan,
> 74 int *val, int *val2,
> 75 long mask)
> 76 {
> 77 u16 tval = 0;
> 78 int ret;
> > 79 struct adis16060_state *st = iio_priv(indio_dev);
> 80
> 81 switch (mask) {
> 82 case IIO_CHAN_INFO_RAW:
> 83 ret = adis16060_spi_write_than_read(indio_dev,
> 84 chan->address, &tval);
> 85 if (ret < 0)
> 86 return ret;
> 87
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>

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