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Subject[PATCH 11/20] net: stmmac: Discard index usage in the dirty_rx init
Date
Indeed in accordance with the initialization loop logics the statement
"(i - priv->dma_rx_size)" will always equal to zero. Just initialize the
dirty_rx pointer with zero then.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8599ef6df52f..abe8db9965f4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1412,7 +1412,7 @@ static int init_dma_rx_desc_rings(struct net_device *dev, gfp_t flags)
}

rx_q->cur_rx = 0;
- rx_q->dirty_rx = (unsigned int)(i - priv->dma_rx_size);
+ rx_q->dirty_rx = 0;

/* Setup the chained descriptor addresses */
if (priv->mode == STMMAC_CHAIN_MODE) {
--
2.29.2
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