[PATCH] net/i40e: fix raw flow item validation

[Ciara Loftus]

Commit c138a6c3bd0a ("net/i40e: validate raw flow items before
dereferencing") rejected raw flow items when spec and mask length
fields differ, intending to prevent out-of-bounds pattern access.

This breaks flows using the default rte_flow_item_raw_mask, which
sets mask.length to 0xffff regardless of the spec pattern size. Remove
the erroneous check.

Fixes: c138a6c3bd0a ("net/i40e: validate raw flow items before dereferencing")
Cc: stable at dpdk.org

Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
---
 drivers/net/intel/i40e/i40e_flow.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/intel/i40e/i40e_flow.c b/drivers/net/intel/i40e/i40e_flow.c
index 84cfddb92d..78191a2d22 100644
--- a/drivers/net/intel/i40e/i40e_flow.c
+++ b/drivers/net/intel/i40e/i40e_flow.c
@@ -2360,13 +2360,6 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
 							   "NULL RAW mask pattern");
 					return -rte_errno;
 				}
-				if (raw_spec->length != raw_mask->length) {
-					rte_flow_error_set(error, EINVAL,
-							   RTE_FLOW_ERROR_TYPE_ITEM,
-							   item,
-							   "RAW spec and mask length mismatch");
-					return -rte_errno;
-				}
 			}
 
 			for (i = 0; i < raw_spec->length; i++) {
-- 
2.43.0