Mailing List Archive: Linux: Kernel

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

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julia at diku

Jun 23, 2008, 2:12 PM

Post #1 of 3 (1354 views)
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[PATCH] drivers/net/r6040.c: Eliminate double sizeof

From: Julia Lawall <julia [at] diku>

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 [at] diku>
---

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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florian.fainelli at telecomint

Jun 24, 2008, 1:54 AM

Post #2 of 3 (1255 views)
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Re: [PATCH] drivers/net/r6040.c: Eliminate double sizeof [In reply to]

Hello Julia,

Le Monday 23 June 2008 23:12:31 Julia Lawall, vous avez écrit :
> From: Julia Lawall <julia [at] diku>
>
> Taking sizeof the result of sizeof is quite strange and does not seem to be
> what is wanted here.

Yes, definitively.

> Signed-off-by: Julia Lawall <julia [at] diku>

Acked-by: Florian Fainelli <florian.fainelli [at] telecomint>
--
Cordialement, Florian Fainelli
------------------------------
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jgarzik at pobox

Jun 26, 2008, 10:33 PM

Post #3 of 3 (1240 views)
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Re: [PATCH] drivers/net/r6040.c: Eliminate double sizeof [In reply to]

Julia Lawall wrote:
> From: Julia Lawall <julia [at] diku>
>
> 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 [at] diku>

applied

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