netdev - [RFC PATCH] net: macb: Remove dead code

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Date:   Mon, 23 Sep 2019 13:49:42 +0530
From:   Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
To:     davem@...emloft.net, netdev@...r.kernel.org
Cc:     nicolas.ferre@...rochip.com, shubhrajyoti.datta@...il.com,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Subject: [RFC PATCH] net: macb: Remove dead code

macb_64b_desc is always called when HW_DMA_CAP_64B is defined.
So the return NULL can never be reached. Remove the dead code.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
---
 drivers/net/ethernet/cadence/macb_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 35b59b5..8e8d557 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -165,9 +165,8 @@ static unsigned int macb_adj_dma_desc_idx(struct macb *bp, unsigned int desc_idx
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 static struct macb_dma_desc_64 *macb_64b_desc(struct macb *bp, struct macb_dma_desc *desc)
 {
-       if (bp->hw_dma_cap & HW_DMA_CAP_64B)
-               return (struct macb_dma_desc_64 *)((void *)desc + sizeof(struct macb_dma_desc));
-       return NULL;
+       return (struct macb_dma_desc_64 *)((void *)desc
+               + sizeof(struct macb_dma_desc));
 }
 #endif

--
2.1.1

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