net/bnxt: check invalid L2 filter id

Add code to check for invalid filter_id in bnxt_hwrm_clear_filter

Fixes: f92735db1e4c ("net/bnxt: add L2 filter alloc/init/free")
Cc: stable@dpdk.org
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index a82cc81..e230b46 100644 (file)
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -327,6 +327,9 @@ int bnxt_hwrm_clear_filter(struct bnxt *bp,
        struct hwrm_cfa_l2_filter_free_input req = {.req_type = 0 };
        struct hwrm_cfa_l2_filter_free_output *resp = bp->hwrm_cmd_resp_addr;
 
+       if (filter->fw_l2_filter_id == UINT64_MAX)
+               return 0;
+
        HWRM_PREP(req, CFA_L2_FILTER_FREE, -1, resp);
 
        req.l2_filter_id = rte_cpu_to_le_64(filter->fw_l2_filter_id);