Re: Change in alloc_skb() behavior in 3.2+ kernels?

From: Grant Edwards <redacted>
Date: Wed, 6 Jun 2012 18:32:57 +0000 (UTC)

The kernel module that's started failing fills the allocated sk_buff
until tailroom() indicates it is full and then sends it.  The problem
is that sending a packet with a length of 1850 won't work (it's a
MAC-layer Ethernet packet).

The amount of tailroom an SKB has is implementation dependent.

It's incredibly poor form to rely upon it to determine whether a fully
sized frame has been constructed or not.

Please fix the code that does this.