IB/ipath: Fix time comparison to use time_after_eq()

Raw comparison against jiffies will fail if jiffies wraps, although
since ipath currently only supports 64-bit architectures, this is rather
far-fetched.  Still, it's better to use time_after_eq().

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c
index 30b2f44..babcc09 100644 (file)
--- a/drivers/infiniband/hw/ipath/ipath_mad.c
+++ b/drivers/infiniband/hw/ipath/ipath_mad.c
@@ -1397,7 +1397,8 @@ static int process_subn(struct ib_device *ibdev, int mad_flags,
        }
 
        /* Is the mkey in the process of expiring? */
-       if (dev->mkey_lease_timeout && jiffies >= dev->mkey_lease_timeout) {
+       if (dev->mkey_lease_timeout &&
+           time_after_eq(jiffies, dev->mkey_lease_timeout)) {
                /* Clear timeout and mkey protection field. */
                dev->mkey_lease_timeout = 0;
                dev->mkeyprot = 0;