On 09/29 11:41, kbuild test robot wrote:
> Hi Maciek,
>
> [auto build test results on v4.3-rc3 -- if it's inappropriate base, please
> ignore]
>
> reproduce:
> # apt-get install sparse
> make ARCH=x86_64 allmodconfig
> make C=1 CF=-D__CHECK_ENDIAN__
>
>
> sparse warnings: (new ones prefixed by >>)
>
> >> drivers/leds/trigger/ledtrig-device.c:214:22: sparse: incorrect type in
> >> argument 1 (different address spaces)
> drivers/leds/trigger/ledtrig-device.c:214:22: expected char const
> *<noident>
> drivers/leds/trigger/ledtrig-device.c:214:22: got char const [noderef]
> <asn:1>*buf
Right, noted right after sending the patch. Will fix in v2.
>
> vim +214 drivers/leds/trigger/ledtrig-device.c
>
> 198 .read = seq_read,
> 199 .llseek = seq_lseek,
> 200 .release = single_release
> 201 };
> 202
> 203 static int get_dev_from_user(const char __user *buf, size_t
> size,
> 204 dev_t *dev)
> 205 {
> 206 unsigned int major;
> 207 unsigned int minor;
> 208 int ret;
> 209
> 210 WARN_ON(dev == NULL);
> 211 if (dev == NULL)
> 212 return -EINVAL;
> 213
> > 214 ret = sscanf(buf, "%u:%u", &major, &minor);
> 215 if (ret < 2)
> 216 return -EINVAL;
> 217
> 218 *dev = MKDEV(major, minor);
> 219 return 0;
> 220 }
> 221
> 222 static ssize_t ledtrig_dev_register_write(struct file *filp,
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
--
Maciek Borzecki
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