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fbdev: use DIV_ROUND_UP or roundup

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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>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Julia Lawall
2008-04-28 02:14:51 -07:00
committed by Linus Torvalds
parent 7f29b87a77
commit 416e74ea78
4 changed files with 4 additions and 5 deletions
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drivers/video/atafb.c
+1 -1
View File
@@ -1270,7 +1270,7 @@ again:
gstart = (prescale / 2 + plen * left_margin) / prescale;
/* gend1 is for hde (gend-gstart multiple of align), shifter's xres */
gend1 = gstart + ((xres + align - 1) / align) * align * plen / prescale;
gend1 = gstart + roundup(xres, align) * plen / prescale;
/* gend2 is for hbb, visible xres (rest to gend1 is cut off by hblank) */
gend2 = gstart + xres * plen / prescale;
par->HHT = plen * (left_margin + xres + right_margin) /