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* kernel: bgmac: rework patch checking packet lengthHauke Mehrtens2014-04-081-0/+39
This bgmac patch was an attempt to fix/workaround bug reported in https://dev.openwrt.org/ticket/7198 noticed on WNR3500L. Patch assumed length reported by the hardware was 0 and was trying to read it until getting a different value. This was actually the opposite. Lenghts were some invalid & huge values that resulted in skb_over_panic. For example: skbuff: skb_over_panic: text:83b21074 len:57222 (...) skbuff: skb_over_panic: text:87af1024 len:43226 (...) skbuff: skb_over_panic: text:87af5024 len:8739 (...) So instead of that not-working patch checking for 0, write a new one checking for huge values. In case something like that happens, dump hardware state and drop the packet. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 40424