On (01/29/16 15:00), Tom Herbert wrote: > The sparc documentation is pretty clear > http://docs.oracle.com/cd/E19253-01/816-4854/hwovr-2/index.html, seems > like unaligned accesses are not allowed in the architecture.
yes, but looks like you can paper over some of this with memcpy (as was happening with the saddr ref in skb_flow_dissect that puzzled me and Eric because it did not generate any traps). I suppose one could sprinkele a few WARN_ON's for !IS_ALIGNED but that's not a fool-proof detection method either (in addition to all the ugly shouting in the code). --Sowmini
