diff options
| -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 */ |