On 2/9/23 09:29, Logan Gunthorpe wrote: > A dereference of the __rcu pointer was noticed by sparse: > > drivers/pci/p2pdma.c:199:44: sparse: sparse: dereference of noderef expression > > The __rcu pointer should be dereferenced using > rcu_dereference_protected() instead of accessed directly. Its safe > to use rcu_derference_protected() seeing a reference is held on > the pgmap's percpu reference counter and thus it cannot disappear. > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> > --- I believe that this change removes the warning is question. With that said, looks good. Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> -ck
