Update from upstream with manual merge of Yasunori Goto's

changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c
index c502c6e9c440..aeeaeb670d03 100644
--- a/drivers/ieee1394/hosts.c
+++ b/drivers/ieee1394/hosts.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/timer.h>
+#include <linux/jiffies.h>
 
 #include "csr1212.h"
 #include "ieee1394.h"
@@ -217,7 +218,7 @@ int hpsb_update_config_rom_image(struct hpsb_host *host)
 
         /* IEEE 1394a-2000 prohibits using the same generation number
          * twice in a 60 second period. */
-        if (jiffies - host->csr.gen_timestamp[next_gen] < 60 * HZ)
+        if (time_before(jiffies, host->csr.gen_timestamp[next_gen] + 60 * HZ))
                 /* Wait 60 seconds from the last time this generation number was
                  * used. */
                 reset_delay = (60 * HZ) + host->csr.gen_timestamp[next_gen] - jiffies;