On Sun, Aug 01, 2021 at 05:20:50PM +0800, Li Zhijian wrote: > ibv_advise_mr(3) says: > EFAULT In one of the following: o When the range requested is out of the MR bounds, > or when parts of it are not part of the process address space. o One of the > lkeys provided in the scatter gather list is invalid or with wrong write access > > Actually get_prefetchable_mr() will return NULL if it see above conditions > > Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxxxxx> > --- > drivers/infiniband/hw/mlx5/odp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > Thanks, Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>