net: mventa: remove unused variable 'dummy' in mvneta_mib_counters_clear()

Fixes the following W=1 kernel build warning(s):

drivers/net/ethernet/marvell/mvneta.c:754:6: warning:
 variable 'dummy' set but not used [-Wunused-but-set-variable]
  754 |  u32 dummy;
      |      ^~~~~

This variable is not used in function mvneta_mib_counters_clear(), so
remove it to avoid build warning.

Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 2332a7fc9a591504d0da6930592fd760ba2ca91f..e5ddefe5cade03fa64cb3249cd8e49ef7f7b1a2f 100644 (file)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -751,13 +751,12 @@ static void mvneta_txq_inc_put(struct mvneta_tx_queue *txq)
 static void mvneta_mib_counters_clear(struct mvneta_port *pp)
 {
        int i;
-       u32 dummy;
 
        /* Perform dummy reads from MIB counters */
        for (i = 0; i < MVNETA_MIB_LATE_COLLISION; i += 4)
-               dummy = mvreg_read(pp, (MVNETA_MIB_COUNTERS_BASE + i));
-       dummy = mvreg_read(pp, MVNETA_RX_DISCARD_FRAME_COUNT);
-       dummy = mvreg_read(pp, MVNETA_OVERRUN_FRAME_COUNT);
+               mvreg_read(pp, (MVNETA_MIB_COUNTERS_BASE + i));
+       mvreg_read(pp, MVNETA_RX_DISCARD_FRAME_COUNT);
+       mvreg_read(pp, MVNETA_OVERRUN_FRAME_COUNT);
 }
 
 /* Get System Network Statistics */