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Re: Casting (struct rtable*) to (struct dst_entry*)

from [David S. Miller] [Permanent Link][Original]
To: nalkunda@xxxxxxxxxxx
Subject: Re: Casting (struct rtable*) to (struct dst_entry*)
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Wed, 19 Mar 2003 20:59:12 -0800 (PST)
Cc: netdev@xxxxxxxxxxx, linux-net@xxxxxxxxxxxxxxx
In-reply-to: <200303192355.02509.nalkunda@cse.msu.edu>
References: <200303192355.02509.nalkunda@cse.msu.edu>
Sender: netdev-bounce@xxxxxxxxxxx 
   From: N N Ashok <nalkunda@xxxxxxxxxxx>
   Date: Wed, 19 Mar 2003 23:55:02 -0500
   
   I am unable to understand how a rtable structure casted to dst_entry will 
give 
   a correct pointer to the input() function. I looked at the fields in rtable 
   and dst_entry, the fields in the structures are cannot be lined up (the 
   fourth field in rtable is not the same type as the fourth field in 
   dst_entry). 

"struct rtable" starts with a "struct dst_entry"
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