diff options
Diffstat (limited to 'drivers/net/hamradio/yam.c')
| -rw-r--r-- | drivers/net/hamradio/yam.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 08f27119a807..467559debfd6 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -50,6 +50,7 @@ #include <linux/slab.h> #include <linux/errno.h> #include <linux/bitops.h> +#include <linux/random.h> #include <asm/io.h> #include <asm/system.h> #include <linux/interrupt.h> @@ -566,14 +567,6 @@ static void yam_start_tx(struct net_device *dev, struct yam_port *yp) ptt_on(dev); } -static unsigned short random_seed; - -static inline unsigned short random_num(void) -{ - random_seed = 28629 * random_seed + 157; - return random_seed; -} - static void yam_arbitrate(struct net_device *dev) { struct yam_port *yp = netdev_priv(dev); @@ -600,7 +593,7 @@ static void yam_arbitrate(struct net_device *dev) yp->slotcnt = yp->slot / 10; /* is random > persist ? */ - if ((random_num() % 256) > yp->pers) + if ((random32() % 256) > yp->pers) return; yam_start_tx(dev, yp); @@ -645,7 +638,9 @@ static void yam_tx_byte(struct net_device *dev, struct yam_port *yp) dev_kfree_skb_any(skb); break; } - memcpy(yp->tx_buf, skb->data + 1, yp->tx_len); + skb_copy_from_linear_data_offset(skb, 1, + yp->tx_buf, + yp->tx_len); dev_kfree_skb_any(skb); yp->tx_count = 0; yp->tx_crcl = 0x21; |