On Fri, Oct 30, 2015 at 09:14:38PM +0800, Jijiang Liu wrote:
> Fixes an issue of check logic in delete_depth_small function.
>
> For a tbl24 entry, the 'ext_entry' field indicates whether we need to use
> tbl8_gindex to read the next_hop from a tbl8 entry, or whether it can be read
> directly from this entry.
>
> If a route is deleted, the prefix of previous route is used to override the
> deleted route.
>
> When checking the depth of the previous route the conditional checks both the
> ext_entry and the depth, but the "else" leg fails to take account that the
> condition could fail for one of two possible reasons, leading to an incorrect
> flow when 'ext_entry == 0' is true , but 'lpm->tbl24[i].depth > depth' is
> false. The fix here is to add a condition check to the else leg so that it
> only executes when ext_entry is set.
>
> Signed-off-by: NaNa <nana.nn at alibaba-inc.com>
Acked-by: Bruce Richardson <bruce.richardson at intel.com>
