Nicholas Piggin d4539074b0 powerpc/64s/kuap: Conditionally restore AMR in kuap_restore_amr asm ...

Similar to the C code change, make the AMR restore conditional on
whether the register has changed.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200429065654.1677541-7-npiggin@gmail.com

2020-05-28 23:24:37 +10:00

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