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Subject[PATCH 7/10] drivers/net/wan: Use DIV_ROUND_UP
From: Julia Lawall <julia@diku.dk>

The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.

An extract of the semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

#include <linux/kernel.h>

@depends on haskernel@
expression n,d;
@@

(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)

@depends on haskernel@
expression n,d;
@@

- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)

@depends on haskernel@
expression n,d;
@@

- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>

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

---
drivers/net/wan/sbni.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -856,7 +856,7 @@ prepare_to_send( struct sk_buff *skb,
len = SBNI_MIN_LEN;

nl->tx_buf_p = skb;
- nl->tx_frameno = (len + nl->maxframe - 1) / nl->maxframe;
+ nl->tx_frameno = DIV_ROUND_UP(len, nl->maxframe);
nl->framelen = len < nl->maxframe ? len : nl->maxframe;

outb( inb( dev->base_addr + CSR0 ) | TR_REQ, dev->base_addr + CSR0 );

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