diff options
| author | Joe Hershberger <joe.hershberger@ni.com> | 2012-05-23 07:58:00 +0000 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2012-05-23 14:19:23 -0500 |
| commit | 1735188329d8c6357299462275061c05a46e100f (patch) | |
| tree | 65b5a8910106cc04ae9c5ed013f51053c6274c8c | |
| parent | f575ae1f7d3940efbfc43e4236adb4a8ec1db632 (diff) | |
| download | u-boot-imx-1735188329d8c6357299462275061c05a46e100f.zip u-boot-imx-1735188329d8c6357299462275061c05a46e100f.tar.gz u-boot-imx-1735188329d8c6357299462275061c05a46e100f.tar.bz2 | |
net: Encapsulate CDP packet identification
Checking for CDP packets should be encapsulated, not copied code.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
| -rw-r--r-- | arch/powerpc/cpu/mpc8xx/fec.c | 2 | ||||
| -rw-r--r-- | include/net.h | 12 | ||||
| -rw-r--r-- | net/net.c | 2 |
3 files changed, 12 insertions, 4 deletions
diff --git a/arch/powerpc/cpu/mpc8xx/fec.c b/arch/powerpc/cpu/mpc8xx/fec.c index 984539d..b348a98 100644 --- a/arch/powerpc/cpu/mpc8xx/fec.c +++ b/arch/powerpc/cpu/mpc8xx/fec.c @@ -274,7 +274,7 @@ static int fec_recv (struct eth_device *dev) #if defined(CONFIG_CMD_CDP) if ((rx[0] & 1) != 0 && memcmp ((uchar *) rx, NetBcastAddr, 6) != 0 - && memcmp ((uchar *) rx, NetCDPAddr, 6) != 0) + && !is_cdp_packet((uchar *)rx)) rx = NULL; #endif /* diff --git a/include/net.h b/include/net.h index 8a5b09f..453231b 100644 --- a/include/net.h +++ b/include/net.h @@ -356,8 +356,6 @@ extern uchar NetEtherNullAddr[6]; extern ushort NetOurVLAN; /* Our VLAN */ extern ushort NetOurNativeVLAN; /* Our Native VLAN */ -extern const uchar NetCDPAddr[6]; /* Ethernet CDP address */ - extern int NetState; /* Network loop state */ #define NETLOOP_CONTINUE 1 #define NETLOOP_RESTART 2 @@ -387,6 +385,16 @@ extern IPaddr_t NetPingIP; /* the ip address to ping */ /* when CDP completes these hold the return values */ extern ushort CDPNativeVLAN; /* CDP returned native VLAN */ extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */ + +/* + * Check for a CDP packet by examining the received MAC address field + */ +static inline int is_cdp_packet(const uchar *et_addr) +{ + extern const uchar NetCDPAddr[6]; + + return memcmp(et_addr, NetCDPAddr, 6) == 0; +} #endif #if defined(CONFIG_CMD_SNTP) @@ -1099,7 +1099,7 @@ NetReceive(uchar *inpkt, int len) #if defined(CONFIG_CMD_CDP) /* keep track if packet is CDP */ - iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; + iscdp = is_cdp_packet(et->et_dest); #endif myvlanid = ntohs(NetOurVLAN); |