On Tue, Dec 13, 2016 at 6:48 PM, Andy Lutomirski <[email protected]> wrote: > The driver put a constant buffer of all zeros on the stack and > pointed a scatterlist entry at it in two places. This doesn't work > with virtual stacks. Use ZERO_PAGE instead.
Wait a second... > - sg_set_buf(&sg_out[1], pad, sizeof pad); > + sg_set_buf(&sg_out[1], empty_zero_page, 16); My fix here is obviously bogus (I meant to use ZERO_PAGE(0)), but what exactly is the code trying to do? The old code makes no sense. It's setting the *output* buffer to zeroed padding. --Andy
