RE: [PATCH net] gianfar: prevent integer wrapping in the rx handler

2018-01-30 Thread Claudiu Manoil
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 >>

Re: [PATCH net] gianfar: prevent integer wrapping in the rx handler

2018-01-29 Thread David Miller
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

[PATCH net] gianfar: prevent integer wrapping in the rx handler

2018-01-25 Thread Andy Spencer
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