Wolfgang Grandegger wrote: > Hello, > > I propose to add the following commonly used RTDM inline functions to > rtdm_driver.h: > > static inline int rtdm_safe_copy_from_user() > static inline int rtdm_safe_copy_to_user()
Yep, likely a convenient shortcut. Just a minor correction: the full size should be checked, not just a single-byte range. Those new services together with updated doc will go into trunk after release 2.2. There are currently several RTDM extensions pending, so I prefer to merge the whole packet and increment the revision number only once. > > The attached patch also fixes a bug in rtdm_strncpy_from_user(). I think > __xn_access_ok() returns a non-zero value if the access is safe. Has it > ever worked? I don't care about the real name. Oops, obviously wrong and obviously yet unused. I fixed this in 2.1.x and trunk. Thanks for the patches! Jan
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