powerpc: Stop using non-architected shared_proc field in lppaca

Although the shared_proc field in the lppaca works today, it is
not architected. A shared processor partition will always have a non
zero yield_count so use that instead. Create a wrapper so users
don't have to know about the details.

In order for older kernels to continue to work on KVM we need
to set the shared_proc bit. While here, remove the ugly bitfield.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 5850798826cd..501e32ca43b4 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1609,7 +1609,7 @@ int start_topology_update(void)
 #endif
                 }
         } else if (firmware_has_feature(FW_FEATURE_VPHN) &&
-                   get_lppaca()->shared_proc) {
+                   lppaca_shared_proc(get_lppaca())) {
                 if (!vphn_enabled) {
                         prrn_enabled = 0;
                         vphn_enabled = 1;