On Sun, 2021-05-16 at 10:36 +0100, Jonathan Cameron wrote: > On Fri, 14 May 2021 10:45:02 -0700 > Nathan Chancellor <nathan@xxxxxxxxxx> wrote: > > On 5/14/2021 6:59 AM, Arnd Bergmann wrote: > > > From: Arnd Bergmann <arnd@xxxxxxxx> > > > > > > clang complains about multiple instances of printing an integer > > > using the %hhx format string: > > > > > > drivers/iio/light/si1133.c:982:4: error: format specifies type 'unsigned char' but the argument has type 'unsigned int' [-Werror,-Wformat] > > > part_id, rev_id, mfr_id); > > > ^~~~~~~ > > > > > > Print them as a normal integer instead, leaving the "#02" > > > length modifier. [] > > > diff --git a/drivers/iio/light/si1133.c b/drivers/iio/light/si1133.c [] > > > @@ -978,11 +978,11 @@ static int si1133_validate_ids(struct iio_dev *iio_dev) > > > return err; > > > > > > > > > dev_info(&iio_dev->dev, > > > - "Device ID part %#02hhx rev %#02hhx mfr %#02hhx\n", > > > + "Device ID part %#02x rev %#02x mfr %#02x\n", > > > part_id, rev_id, mfr_id); > > > if (part_id != SI1133_PART_ID) { > > > dev_err(&iio_dev->dev, > > > - "Part ID mismatch got %#02hhx, expected %#02x\n", > > > + "Part ID mismatch got %#02x, expected %#02x\n", which is almost certainly wrong. the length specification includes the # which is already 2 bytes. Likely these should be 0x%02x > > > part_id, SI1133_PART_ID);