Mon, Feb 19, 2018 at 09:32:51PM CET, c...@rkapl.cz wrote: >So far, if the filter was too large to fit in the allocated skb, the >kernel did not return any error and stopped dumping. Modify the dumper >so that it returns -EMSGSIZE when a filter fails to dump and it is the >first filter in the skb. If we are not first, we will get a next chance >with more room. > >I understand this is pretty near to being an API change, but the >original design (silent truncation) can be considered a bug. > >Note: The error case can happen pretty easily if you create a filter >with 32 actions and have 4kb pages. Also recent versions of iproute try >to be clever with their buffer allocation size, which in turn leads to > >Signed-off-by: Roman Kapl <c...@rkapl.cz>
Acked-by: Jiri Pirko <j...@mellanox.com>
