net: Quietly ignore DHCP Option 28 (Broadcast Address)
Some DHCP servers (notably dnsmasq) always transmit DHCP Option 28,
Broadcast Address as specified in RFC 2132. Without this patch u-boot
displays the warning:
*** Unhandled DHCP Option in OFFER/ACK: 28
The patch suppresses the warning and ignores DHCP Option 28. There is
no environment variable to set the broadcast address into and if for
some reason u-boot needs the broadcast it can be calculated from
ipaddr and netmask.
Signed-off-by: Brian Rzycki <bmr@freescale.com>
diff --git a/net/bootp.c b/net/bootp.c
index c9b8349..661e371 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -728,6 +728,8 @@
memcpy(&NetOurRootPath, popt + 2, size);
NetOurRootPath[size] = 0;
break;
+ case 28: /* Ignore Broadcast Address Option */
+ break;
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
case 42: /* NTP server IP */
NetCopyIP(&NetNtpServerIP, (popt + 2));