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
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
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