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authorJulia Lawall <julia@diku.dk>2008-09-22 19:22:58 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-22 19:22:58 -0700
commit6a19309db0a02d821494f4df754046c85a230627 (patch)
tree03936c1806097bb4e0aafc9956e866727f713ea9 /drivers/atm/eni.c
parentca330c5a913a9b1690c709f4cfcd6be0c8696b14 (diff)
downloadlinux-stericsson-6a19309db0a02d821494f4df754046c85a230627.tar.gz
drivers/atm: Use DIV_ROUND_UP
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. In the case of the file drivers/atm/eni.c, I am a little bit suspicious of the -1 at the end of the affected expression. Please check that that is what is wanted. 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/atm/eni.c')
-rw-r--r--drivers/atm/eni.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 41b2204ebc6e..5503bfc8e132 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1270,7 +1270,7 @@ static int comp_tx(struct eni_dev *eni_dev,int *pcr,int reserved,int *pre,
if (*pre < 3) (*pre)++; /* else fail later */
div = pre_div[*pre]*-*pcr;
DPRINTK("max div %d\n",div);
- *res = (TS_CLOCK+div-1)/div-1;
+ *res = DIV_ROUND_UP(TS_CLOCK, div)-1;
}
if (*res < 0) *res = 0;
if (*res > MID_SEG_MAX_RATE) *res = MID_SEG_MAX_RATE;