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| author | Julia Lawall <julia@diku.dk> | 2008-09-22 19:22:58 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-09-22 19:22:58 -0700 |
| commit | 6a19309db0a02d821494f4df754046c85a230627 (patch) | |
| tree | 03936c1806097bb4e0aafc9956e866727f713ea9 /drivers/atm/zatm.c | |
| parent | ca330c5a913a9b1690c709f4cfcd6be0c8696b14 (diff) | |
| download | linux-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/zatm.c')
| -rw-r--r-- | drivers/atm/zatm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c index 58583c6ac5be..752b1ba81f7e 100644 --- a/drivers/atm/zatm.c +++ b/drivers/atm/zatm.c @@ -496,8 +496,8 @@ static int open_rx_first(struct atm_vcc *vcc) vcc->qos.rxtp.max_sdu = 65464; /* fix this - we may want to receive 64kB SDUs later */ - cells = (vcc->qos.rxtp.max_sdu+ATM_AAL5_TRAILER+ - ATM_CELL_PAYLOAD-1)/ATM_CELL_PAYLOAD; + cells = DIV_ROUND_UP(vcc->qos.rxtp.max_sdu + ATM_AAL5_TRAILER, + ATM_CELL_PAYLOAD); zatm_vcc->pool = pool_index(cells*ATM_CELL_PAYLOAD); } else { @@ -820,7 +820,7 @@ static int alloc_shaper(struct atm_dev *dev,int *pcr,int min,int max,int ubr) } else { i = 255; - m = (ATM_OC3_PCR*255+max-1)/max; + m = DIV_ROUND_UP(ATM_OC3_PCR*255, max); } } if (i > m) { |