[U-Boot] [PATCH V2] net: bootp: Ignore packets whose yiaddr is 0

[Wolfgang Denk <wd@denx.de>]

Dear Peng Fan,

In message <1452151703-30647-1-git-send-email-van.freenix@gmail.com> you wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> When doing `dhcp`, there is a bad dhcp server in my network
> which always reply dhcp request with yiaddr 0, which cause
> uboot can not successfully get ipaddr from the good dhcp server.
> But the Linux PC can get the ip address even if there is a bad
> dhcp server. This patch is to fix that even if there is a bad
> dhcp server, uboot can still get ipaddr and tftp work ok.
> 
> The way is to ignore the packets from the bad dhcp server by filtering
> out the yiaddr whose value is 0.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> Cc: Joe Hershberger <joe.hershberger@ni.com>
> ---
> 
> Changes V2:
>  Take Wolfgang's suggestion, move the code after debug message.

THanks.

Reviewed-by: Wolfgang Denk <wd@denx.de>

Best regards,

Wolfgang Denk

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