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| author | vignesh babu <vignesh.babu@wipro.com> | 2007-07-09 11:50:22 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-07-10 12:22:30 -0400 |
| commit | d9da466a3ce2ac005e05bb649a0f2cfb5c3d5d45 (patch) | |
| tree | 9707bfd17267f1c478196fabcb140c9fcf17f010 /drivers | |
| parent | de0d3dc0e8ecd80f602fac03feb8fd53d0c17a8c (diff) | |
| download | linux-stable-d9da466a3ce2ac005e05bb649a0f2cfb5c3d5d45.tar.gz linux-stable-d9da466a3ce2ac005e05bb649a0f2cfb5c3d5d45.tar.bz2 linux-stable-d9da466a3ce2ac005e05bb649a0f2cfb5c3d5d45.zip | |
use is_power_of_2() in cxgb3/cxgb3_main.c
Replace (n & (n-1)) with is_power_of_2()
Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/cxgb3/cxgb3_main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c index 15defe4c4f05..6fd1e5241833 100644 --- a/drivers/net/cxgb3/cxgb3_main.c +++ b/drivers/net/cxgb3/cxgb3_main.c @@ -43,6 +43,7 @@ #include <linux/proc_fs.h> #include <linux/rtnetlink.h> #include <linux/firmware.h> +#include <linux/log2.h> #include <asm/uaccess.h> #include "common.h" @@ -1818,8 +1819,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) return -EBUSY; if (copy_from_user(&m, useraddr, sizeof(m))) return -EFAULT; - if (!m.rx_pg_sz || (m.rx_pg_sz & (m.rx_pg_sz - 1)) || - !m.tx_pg_sz || (m.tx_pg_sz & (m.tx_pg_sz - 1))) + if (!is_power_of_2(m.rx_pg_sz) || + !is_power_of_2(m.tx_pg_sz)) return -EINVAL; /* not power of 2 */ if (!(m.rx_pg_sz & 0x14000)) return -EINVAL; /* not 16KB or 64KB */ |