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| author | Stephen Hemminger <shemminger@osdl.org> | 2006-03-20 22:58:49 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-20 22:58:49 -0800 |
| commit | 18fdb2b25be37e49b1669b5c394671f8c5b6550f (patch) | |
| tree | 494e70fe7215849709352b826c54ea0c8154ac20 /net | |
| parent | f8ae737deea1be001d7d8ac11c382a7b73a1c98f (diff) | |
| download | lwn-18fdb2b25be37e49b1669b5c394671f8c5b6550f.tar.gz lwn-18fdb2b25be37e49b1669b5c394671f8c5b6550f.zip | |
[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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_stp_bpdu.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c index 296f6a487c52..c3da01cc6a6f 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 @@ static void br_send_bpdu(struct net_bridge_port *p, unsigned char *data, int len 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 */ |