On Mon, Sep 30, 2019 at 04:22:35PM -0700, Alan Mikhak wrote: > From: Alan Mikhak <alan.mik...@sifive.com> > > Modify sg_miter_stop() to validate the page pointer > before calling PageSlab(). This check prevents a crash > that will occur if PageSlab() gets called with a page > pointer that is not backed by page struct. > > A virtual address obtained from ioremap() for a physical > address in PCI address space can be assigned to a > scatterlist segment using the public scatterlist API > as in the following example:
As Jason pointed out that is not a valid use of scatterlist. What are you trying to do here at a higher level?
