netdev - [PATCH 3/3] sh_eth: use DIV_ROUND_UP() in sh_eth_soft

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Date:   Sat, 2 Jun 2018 22:40:16 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>
Cc:     linux-renesas-soc@...r.kernel.org
Subject: [PATCH 3/3] sh_eth: use DIV_ROUND_UP() in sh_eth_soft_swap()

When initializing 'maxp' in sh_eth_soft_swap(), the buffer length needs
to be rounded  up -- that's just asking for DIV_ROUND_UP()!

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>

---
 drivers/net/ethernet/renesas/sh_eth.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: net-next/drivers/net/ethernet/renesas/sh_eth.c
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c
+++ net-next/drivers/net/ethernet/renesas/sh_eth.c
@@ -464,7 +464,7 @@ static void sh_eth_soft_swap(char *src,
 {
 #ifdef __LITTLE_ENDIAN
 	u32 *p = (u32 *)src;
-	u32 *maxp = p + ((len + sizeof(u32) - 1) / sizeof(u32));
+	u32 *maxp = p + DIV_ROUND_UP(len, sizeof(u32));

 	for (; p < maxp; p++)
 		*p = swab32(*p);