On Fri, May 18, 2018 at 10:48:30PM +0300, Andy Shevchenko wrote:
> On Thu, May 17, 2018 at 8:03 PM, Guido Kiener <guido@xxxxxxxxxxxxxxxxxx> wrote:
> > Add ioctls USBTMC_IOCTL_GET_TIMEOUT / USBTMC_IOCTL_SET_TIMEOUT to
> > get/set I/O timeout for specific file handle.
>
>
>
>
> > +static int usbtmc_ioctl_get_timeout(struct usbtmc_file_data *file_data,
> > + void __user *arg)
> > +{
> > + __u32 timeout;
> > +
> > + timeout = file_data->timeout;
>
> Why do you need __u32 on kernel side?
> Would plain u32 work?
Yes, on the kernel side that is the correct type to use after you copy
it over from userspace.
thanks,
greg k-h
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