linux-kernel - [PATCH] drivers/net: appletalk/cops: remove redundant if statement and mask

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Date:   Sat, 22 Dec 2018 16:58:41 +0000
From:   Colin King <colin.king@...onical.com>
To:     "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drivers/net: appletalk/cops: remove redundant if statement and mask

From: Colin Ian King <colin.king@...onical.com>

The two different assignments for pkt_len are actually the same and
so the if statement is redundant and can be removed.  Masking a u8
return value from inb() with 0xFF is also redundant and can also be
emoved.  Remove the redundant code.

Detected by CoverityScan, CID#1475639 ("Identical code for different
branches")

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/appletalk/cops.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c
index bb49f6e40a19..64c74002fe8b 100644
--- a/drivers/net/appletalk/cops.c
+++ b/drivers/net/appletalk/cops.c
@@ -777,10 +777,7 @@ static void cops_rx(struct net_device *dev)
         }

         /* Get response length. */
-	if(lp->board==DAYNA)
-        	pkt_len = inb(ioaddr) & 0xFF;
-	else
-		pkt_len = inb(ioaddr) & 0x00FF;
+	pkt_len = inb(ioaddr);
         pkt_len |= (inb(ioaddr) << 8);
         /* Input IO code. */
         rsp_type=inb(ioaddr);
-- 
2.19.1