[PATCH] powerpc: Fix g5 DART init

The patch enabling the new G5's with U4 broke initialization of the DART
driver, causing it to trigger a BUG_ON for a case that is actually
valid. This patch fixes it:

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index df0dbdee762a..e00b46b9514e 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -216,12 +216,12 @@ static int dart_init(struct device_node *dart_node)
         base = dart_tablebase >> DART_PAGE_SHIFT;
         size = dart_tablesize >> DART_PAGE_SHIFT;
         if (dart_is_u4) {
-                BUG_ON(size & ~DART_SIZE_U4_SIZE_MASK);
+                size &= DART_SIZE_U4_SIZE_MASK;
                 DART_OUT(DART_BASE_U4, base);
                 DART_OUT(DART_SIZE_U4, size);
                 DART_OUT(DART_CNTL, DART_CNTL_U4_ENABLE);
         } else {
-                BUG_ON(size & ~DART_CNTL_U3_SIZE_MASK);
+                size &= DART_CNTL_U3_SIZE_MASK;
                 DART_OUT(DART_CNTL,
                          DART_CNTL_U3_ENABLE |
                          (base << DART_CNTL_U3_BASE_SHIFT) |