1 files changed, 3 insertions, 4 deletions

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 70075c47ada8..33d2ded50f84 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -17,6 +17,7 @@
 #include <linux/errno.h>
 #include <linux/ethtool.h>
 #include <linux/netdevice.h>
+#include <linux/bitops.h>
 #include <asm/uaccess.h>
 
 /*
@@ -216,7 +217,7 @@ static noinline int ethtool_get_drvinfo(struct net_device *dev, void __user *use
 
         /*
          * this method of obtaining string set info is deprecated;
-         * consider using ETHTOOL_GSSET_INFO instead
+         * Use ETHTOOL_GSSET_INFO instead.
          */
         if (ops->get_sset_count) {
                 int rc;
@@ -265,9 +266,7 @@ static noinline int ethtool_get_sset_info(struct net_device *dev,
                 return 0;
 
         /* calculate size of return buffer */
-        for (i = 0; i < 64; i++)
-                if (sset_mask & (1ULL << i))
-                        n_bits++;
+        n_bits = hweight64(sset_mask);
 
         memset(&info, 0, sizeof(info));
         info.cmd = ETHTOOL_GSSET_INFO;