powerpc: Remove some unused functions

Remove slice_set_psize() which is not used.

It was added in 3a8247cc2c85 "powerpc: Only demote individual slices
rather than whole process" but was never used.

Remove vsx_assist_exception() which is not used.

It was added in ce48b2100785 "powerpc: Add VSX context save/restore,
ptrace and signal support" but was never used.

Remove generic_mach_cpu_die() which is not used.

Its last caller was removed in 375f561a4131 "powerpc/powernv: Always go
into nap mode when CPU is offline".

Remove mpc7448_hpc2_power_off() and mpc7448_hpc2_halt() which are
unused.

These were introduced in c5d56332fd6c "[POWERPC] Add general support for
mpc7448hpc2 (Taiga) platform" but were never used.

This was partially found by using a static code analysis program called
cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
[mpe: Update changelog with details on when/why they are unused]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 0 insertions, 11 deletions

diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
index beeaf4a173e1..df4ad95f183e 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
+++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
@@ -156,17 +156,6 @@ void mpc7448_hpc2_restart(char *cmd)
         for (;;) ;              /* Spin until reset happens */
 }
 
-void mpc7448_hpc2_power_off(void)
-{
-        local_irq_disable();
-        for (;;) ;              /* No way to shut power off with software */
-}
-
-void mpc7448_hpc2_halt(void)
-{
-        mpc7448_hpc2_power_off();
-}
-
 /*
  * Called very early, device-tree isn't unflattened
  */