[PATCH] powerpc/64e/interrupt: fix nvgprs being clobbered

[Michael Ellerman]

On Fri, 14 May 2021 14:40:08 +1000, Nicholas Piggin wrote:
> Some interrupt handlers have an "extra" that saves 1 or 2 registers
> (r14, r15) in the paca save area and makes them available to use by the
> handler.
> 
> The change to always save nvgprs in exception handlers lead to some
> interrupt handlers saving those scratch r14 / r15 registers into the
> interrupt frame's GPR saves, which get restored on interrupt exit.
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/64e/interrupt: fix nvgprs being clobbered
      https://git.kernel.org/powerpc/c/c6ac667b07996929835b512de0e9a988977e6abc

cheers