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authorJulia Lawall <julia@diku.dk>2008-08-20 20:44:53 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:36:51 -0200
commite9e24cee67bf71b929b646387f286e907cbde5fc (patch)
treefd3be5482d9a17cd5df69ca8e0cd0ba5c0d4cb5c /drivers/media/video/bw-qcam.c
parent95908ece60443ceb188fccf021d62823de8e6f0c (diff)
V4L/DVB (8729): Use DIV_ROUND_UP
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@ @@ @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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/bw-qcam.c')
-rw-r--r--drivers/media/video/bw-qcam.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c
index 6e39e253ce5..01f07707827 100644
--- a/drivers/media/video/bw-qcam.c
+++ b/drivers/media/video/bw-qcam.c
@@ -495,7 +495,7 @@ static void qc_set(struct qcam_device *q)
val2 = (((q->port_mode & QC_MODE_MASK) == QC_BIDIR) ? 24 : 8) *
q->transfer_scale;
}
- val = (val + val2 - 1) / val2;
+ val = DIV_ROUND_UP(val, val2);
qc_command(q, 0x13);
qc_command(q, val);
@@ -651,7 +651,7 @@ static long qc_capture(struct qcam_device * q, char __user *buf, unsigned long l
transperline = q->width * q->bpp;
divisor = (((q->port_mode & QC_MODE_MASK) == QC_BIDIR) ? 24 : 8) *
q->transfer_scale;
- transperline = (transperline + divisor - 1) / divisor;
+ transperline = DIV_ROUND_UP(transperline, divisor);
for (i = 0, yield = yieldlines; i < linestotrans; i++)
{