[dpdk-dev] [PATCH v2 2/2] lib/lpm:fix an initialization issue of valid_group in the delete_depth_small()

[Jijiang Liu]

Fixes an initialization issue of 'valid_group' in the delete_depth_small function.

In this function, use new rte_lpm_tbl8_entry we call A to replace the old rte_lpm_tbl8_entry. But the valid_group do not set VALID, so it 
will be INVALID.

Then when adding a new route which depth is > 24,the tbl8_alloc() function will search the rte_lpm_tbl8_entrys to find INVALID 
valid_group, and it will return the A to the add_depth_big function, so A's data is overridden.

Signed-off-by: NaNa <nana.nn at alibaba-inc.com>

---
 lib/librte_lpm/rte_lpm.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c
index 57ec2f0..3981452 100644
--- a/lib/librte_lpm/rte_lpm.c
+++ b/lib/librte_lpm/rte_lpm.c
@@ -769,6 +769,7 @@ delete_depth_small(struct rte_lpm *lpm, uint32_t ip_masked,
 
 		struct rte_lpm_tbl8_entry new_tbl8_entry = {
 			.valid = VALID,
+			.valid_group = VALID,
 			.depth = sub_rule_depth,
 			.next_hop = lpm->rules_tbl
 			[sub_rule_index].next_hop,
-- 
1.7.7.6