linux-kernel - [PATCH] drivers/net/r6040.c: Eliminate double sizeof

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Message-ID: <Pine.LNX.4.64.0806232311570.13402@ask.diku.dk>
Date:	Mon, 23 Jun 2008 23:12:31 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	florian.fainelli@...ecomint.eu, jgarzik@...ox.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH] drivers/net/r6040.c: Eliminate double sizeof

From: Julia Lawall <julia@...u.dk>

Taking sizeof the result of sizeof is quite strange and does not seem to be
what is wanted here.

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E;
@@

- sizeof (
  sizeof (E)
- )
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>
---

diff -u -p a/drivers/net/r6040.c b/drivers/net/r6040.c
--- a/drivers/net/r6040.c 2008-06-17 19:46:52.000000000 +0200
+++ b/drivers/net/r6040.c 2008-06-23 22:55:11.000000000 +0200
@@ -273,7 +273,7 @@ static void r6040_init_ring_desc(struct 
 	dma_addr_t mapping = desc_dma;
 
 	while (size-- > 0) {
-		mapping += sizeof(sizeof(*desc));
+		mapping += sizeof(*desc);
 		desc->ndesc = cpu_to_le32(mapping);
 		desc->vndescp = desc + 1;
 		desc++;
--
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