[dpdk-dev] [PATCH v4 08/10] net/i40e: clean LTO build warnings (maybe-uninitialized)

Andrzej Ostruszka aostruszka at marvell.com
Tue Oct 22 13:54:10 CEST 2019


During LTO build compiler reports some 'false positive' warnings about
variables being possibly used uninitialized.  This patch silences these
warnings.

Exemplary compiler warning to suppress (with LTO enabled):
error: ‘filter_idx’ may be used uninitialized in this function
[-Werror=maybe-uninitialized]
  PMD_DRV_LOG(INFO, "Added port %d with AQ command with index %d",

Signed-off-by: Andrzej Ostruszka <aostruszka at marvell.com>
---
 drivers/net/i40e/i40e_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 4e40b7ab5..525a6b69b 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -8376,7 +8376,7 @@ static int
 i40e_add_vxlan_port(struct i40e_pf *pf, uint16_t port, int udp_type)
 {
 	int  idx, ret;
-	uint8_t filter_idx;
+	uint8_t filter_idx = 0;
 	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
 
 	idx = i40e_get_vxlan_port_idx(pf, port);
-- 
2.17.1



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