Re: [PATCH net-next] net: mventa: remove unused variable 'dummy' in mvneta_mib_counters_clear()

[David Miller]

From: Zhang Changzhong 
Date: Sat, 19 Sep 2020 10:26:51 +0800

> 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 

Applied.

[PATCH net-next] net: mventa: remove unused variable 'dummy' in mvneta_mib_counters_clear()

[Zhang Changzhong]

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 
---
 drivers/net/ethernet/marvell/mvneta.c | 7 +++
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c 
b/drivers/net/ethernet/marvell/mvneta.c
index f75e05e..4694242 100644
--- 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 */
-- 
2.9.5