On Sat, Sep 05, 2020 at 03:57:14PM +0200, Luc Van Oostenryck wrote: > On Sat, Sep 05, 2020 at 10:19:35PM +0900, Stafford Horne wrote: > > Hi, > > The change for 64-bit get_user() looks good to me. > But I wonder, given that openrisc is big-endian, what will happen > you have the opposite situation: > u32 *ptr; > u64 val; > ... > get_user(val, ptr); > > Won't you end with the value in the most significant part of > the register pair?
Hi Luc, The get_user function uses the size of the ptr to determine how to do the load , so this case would not use the 64-bit pair register logic. I think it should be ok, the end result would be the same as c code: var = *ptr; -Stafford
