On Thu, Mar 11, 2021 at 12:32:27PM +0000, Paul Cercueil wrote: > > dma_to_phys must not be used by drivers. > > > > I have a proper helper for this waiting for users: > > > > http://git.infradead.org/users/hch/misc.git/commitdiff/96a546e7229ec53aadbdb7936d1e5e6cb5958952 > > > > If you can confirm the helpers works for you I can try to still sneak > > it to Linus for 5.12 to ease the merge pain. > > I can try. How do I get a page pointer from a dma_addr_t?
You don't - you get it from using virt_to_page on the pointer returned from dma_alloc_noncoherent. That beind said to keep the API sane I should probably add a wrapper that does that for you.
