1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index 6777887295f5..a094288f0277 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -742,7 +742,7 @@ err_setup:
         uint32_t pat, value;                                                   \
         uint32_t test[] =                                                      \
                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};              \
-        for (pat = 0; pat < sizeof(test)/sizeof(test[0]); pat++) {              \
+        for (pat = 0; pat < ARRAY_SIZE(test); pat++) {              \
                 E1000_WRITE_REG(&adapter->hw, R, (test[pat] & W));             \
                 value = E1000_READ_REG(&adapter->hw, R);                       \
                 if (value != (test[pat] & W & M)) {                             \