[ovs-dev] [PATCH v3] odp-execute: Skip processing actions when batch is emptied

[Ben Pfaff]

On Thu, Nov 30, 2017 at 05:37:57AM +0000, Vishal Deep Ajmera wrote:
> Today in OVS, when errors are encountered during the execution
> of an action the entire batch of packets may be deleted (for e.g.
> in processing push_tnl_action, if the port is not found in the
> port_cache of PMD). The remaining actions continue to be executed
> even though there are no packets to be processed.
> 
> It is assumed that the code dealing with each action checks that
> the batch is not empty before executing. Crashes may occur if the
> assumption is not met.
> 
> The patch makes OVS skip processing of further actions from the
> action-set once a batch is emptied. Doing so centralizes the check
> in one place and avoids the possibility of crashes.
> 
> This change DOES NOT fix any existing bug in the code, only a
> precautionary measure to avoid crashes if new actions does not
> take care of empty batches.
> 
> Signed-off-by: Vishal Deep Ajmera <vishal.deep.ajmera at ericsson.com>

Thanks.

I applied this to master.