On Mon, Nov 26, 2018 at 05:07:46PM +0000, Will Deacon wrote: > The current ioremap() code uses a phys_addr variable at each level of > page table, which is confusingly offset by subtracting the base virtual > address being mapped so that adding the current virtual address back on > when iterating through the page table entries gives back the corresponding > physical address. > > This is fairly confusing and results in all users of phys_addr having to > add the current virtual address back on. Instead, this patch just updates > phys_addr when iterating over the page table entries, ensuring that it's > always up-to-date and doesn't require explicit offsetting. > > Cc: Chintan Pandya <[email protected]> > Cc: Toshi Kani <[email protected]> > Cc: Thomas Gleixner <[email protected]> > Cc: Michal Hocko <[email protected]> > Cc: Andrew Morton <[email protected]> > Cc: Sean Christopherson <[email protected]> > Signed-off-by: Will Deacon <[email protected]>
Tested-by: Sean Christopherson <[email protected]> Reviewed-by: Sean Christopherson <[email protected]>
