APEI GHES: 32-bit buildfix

drivers/acpi/apei/ghes.c:542: warning: integer overflow in expression
drivers/acpi/apei/ghes.c:619: warning: integer overflow in expression

ghes.c:(.text+0x46289): undefined reference to `__udivdi3'
  in function ghes_estatus_cache_add().

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index e92c47c46f91..0784f99a4665 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -65,7 +65,7 @@
 
 #define GHES_ESTATUS_CACHES_SIZE        4
 
-#define GHES_ESTATUS_IN_CACHE_MAX_NSEC  (10 * NSEC_PER_SEC)
+#define GHES_ESTATUS_IN_CACHE_MAX_NSEC  10000000000ULL
 /* Prevent too many caches are allocated because of RCU */
 #define GHES_ESTATUS_CACHE_ALLOCED_MAX  (GHES_ESTATUS_CACHES_SIZE * 3 / 2)
 
@@ -622,7 +622,8 @@ static void ghes_estatus_cache_add(
                         break;
                 }
                 count = atomic_read(&cache->count);
-                period = duration / (count + 1);
+                period = duration;
+                do_div(period, (count + 1));
                 if (period > max_period) {
                         max_period = period;
                         slot = i;