net: broadcom: bcm4908enet: remove redundant variable bytes

[ Upstream commit 62a3106697f3c6f9af64a2cd0f9ff58552010dc8 ]

The variable bytes is being used to summate slot lengths,
however the value is never used afterwards. The summation
is redundant so remove variable bytes.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20211222003937.727325-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: ef3556ee16c6 ("net: broadcom: bcm4908_enet: update TX stats after actual transmission")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c
index 376f817..994731a 100644 (file)
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -635,7 +635,6 @@ static int bcm4908_enet_poll_tx(struct napi_struct *napi, int weight)
        struct bcm4908_enet_dma_ring_bd *buf_desc;
        struct bcm4908_enet_dma_ring_slot *slot;
        struct device *dev = enet->dev;
-       unsigned int bytes = 0;
        int handled = 0;
 
        while (handled < weight && tx_ring->read_idx != tx_ring->write_idx) {
@@ -646,7 +645,6 @@ static int bcm4908_enet_poll_tx(struct napi_struct *napi, int weight)
 
                dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE);
                dev_kfree_skb(slot->skb);
-               bytes += slot->len;
                if (++tx_ring->read_idx == tx_ring->length)
                        tx_ring->read_idx = 0;