net] gianfar: prevent integer wrapping in the rx handler
>
>From: Andy Spencer
>Date: Thu, 25 Jan 2018 19:37:50 -0800
>
>> When the frame check sequence (FCS) is split across the last two frames
>> of a fragmented packet, part of the FCS gets counted twice, once when
>>
From: Andy Spencer
Date: Thu, 25 Jan 2018 19:37:50 -0800
> When the frame check sequence (FCS) is split across the last two frames
> of a fragmented packet, part of the FCS gets counted twice, once when
> subtracting the FCS, and again when subtracting the previously received
> data.
>
> For exa
When the frame check sequence (FCS) is split across the last two frames
of a fragmented packet, part of the FCS gets counted twice, once when
subtracting the FCS, and again when subtracting the previously received
data.
For example, if 1602 bytes are received, and the first fragment contains
the f