powerpc: Shield code specific to 64-bit server processors

This is a random collection of added ifdef's around portions of
code that only mak sense on server processors. Using either
CONFIG_PPC_STD_MMU_64 or CONFIG_PPC_BOOK3S as seems appropriate.

This is meant to make the future merging of Book3E 64-bit support
easier.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 7d46e5d5b207..8564a412e7a6 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -117,6 +117,7 @@ notrace void raw_local_irq_restore(unsigned long en)
         if (!en)
                 return;
 
+#ifdef CONFIG_PPC_STD_MMU_64
         if (firmware_has_feature(FW_FEATURE_ISERIES)) {
                 /*
                  * Do we need to disable preemption here?  Not really: in the
@@ -134,6 +135,7 @@ notrace void raw_local_irq_restore(unsigned long en)
                 if (local_paca->lppaca_ptr->int_dword.any_int)
                         iseries_handle_interrupts();
         }
+#endif /* CONFIG_PPC_STD_MMU_64 */
 
         /*
          * if (get_paca()->hard_enabled) return;