On Mon, Apr 17, 2017 at 2:36 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > From: Yongji Xie <elohimes@xxxxxxxxx> > > In case that one device's alignment is greater than its size, > we may get an incorrect size and alignment for its bus's memory > window in pbus_size_mem(). This patch fixes this case. In which case, that device alignment is not same as size? or powerpc need small size, but alignment is PAGE_SIZE? Thanks Yinghai