On Thu, Aug 10, 2023 at 10:50:42AM +0200, Krzysztof Kozlowski wrote: > `devtype` is enum, thus cast of pointer on 64-bit compile test with W=1 > causes: > > mxs-auart.c:1598:15: error: cast to smaller integer type 'enum mxs_auart_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] > > Cc: Andi Shyti <andi.shyti@xxxxxxxxxx> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> > --- > drivers/tty/serial/mxs-auart.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c > index 8eeecf8ad359..a9b32722b049 100644 > --- a/drivers/tty/serial/mxs-auart.c > +++ b/drivers/tty/serial/mxs-auart.c > @@ -1595,7 +1595,7 @@ static int mxs_auart_probe(struct platform_device *pdev) > return -EINVAL; > } > > - s->devtype = (enum mxs_auart_type)of_device_get_match_data(&pdev->dev); > + s->devtype = (uintptr_t)of_device_get_match_data(&pdev->dev); This feels like a compiler issue as devtype is a enum mxs_auart_type variable, so the cast shoudl be correct. And if not, unitptr_t isn't a valid kernel type, so that's not a good solution either. Worst case, it's how big a pointer is, which is not going to be what an enum is if you have a sane compiler :( thanks, greg k-h
