[PATCH kernel v2] powerpc/powernv/ioda: Return correct error if TCE level allocation failed

[Michael Ellerman]

On Wed, 17 Jun 2020 10:38:35 +1000, Alexey Kardashevskiy wrote:
> The iommu_table_ops::xchg_no_kill() callback updates TCE. It is quite
> possible that not entire table is allocated if it is huge and multilevel
> so xchg may also allocate subtables. If failed, it returns H_HARDWARE
> for failed allocation and H_TOO_HARD if it needs it but cannot do because
> the alloc parameter is "false" (set when called with MMU=off to force
> retry with MMU=on).
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/powernv/ioda: Return correct error if TCE level allocation failed
      https://git.kernel.org/powerpc/c/5f202c1a1d429bee3ddab647711f181c72d157da

cheers