[BRIDGE]: stp timer to jiffies cleanup
Cleanup the get/set of bridge timer value in the packets.
It is clearer not to bury the conversion in macro.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 296f6a4..c3da01c 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -19,8 +19,7 @@
#include "br_private.h"
#include "br_private_stp.h"
-#define JIFFIES_TO_TICKS(j) (((j) << 8) / HZ)
-#define TICKS_TO_JIFFIES(j) (((j) * HZ) >> 8)
+#define STP_HZ 256
static void br_send_bpdu(struct net_bridge_port *p, unsigned char *data, int length)
{
@@ -57,18 +56,18 @@
dev_queue_xmit);
}
-static __inline__ void br_set_ticks(unsigned char *dest, int jiff)
+static inline void br_set_ticks(unsigned char *dest, int j)
{
- __u16 ticks;
+ unsigned long ticks = (STP_HZ * j)/ HZ;
- ticks = JIFFIES_TO_TICKS(jiff);
- dest[0] = (ticks >> 8) & 0xFF;
- dest[1] = ticks & 0xFF;
+ *((__be16 *) dest) = htons(ticks);
}
-static __inline__ int br_get_ticks(unsigned char *dest)
+static inline int br_get_ticks(const unsigned char *src)
{
- return TICKS_TO_JIFFIES((dest[0] << 8) | dest[1]);
+ unsigned long ticks = ntohs(*(__be16 *)src);
+
+ return (ticks * HZ + STP_HZ - 1) / STP_HZ;
}
/* called under bridge lock */