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From: Beilei Xing <beilei.xing@intel.com>
To: qi.z.zhang@intel.com
Cc: dev@dpdk.org, jia.guo@intel.com
Subject: [dpdk-dev] [PATCH] net/i40e: fix shifts of 32-bit value
Date: Wed, 23 May 2018 15:46:46 +0800	[thread overview]
Message-ID: <1527061606-10172-1-git-send-email-beilei.xing@intel.com> (raw)

Cppcheck reports following error,
(error) Shifting 32-bit value by 36 bits is undefined behaviour

According to datasheet, there's PHY type and PHY type extension
in setting PHY config command, should exclude PHY type extension
when setting PHY type.

Fixes: 1bb8f661168d ("net/i40e: fix link down and negotiation")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 7d4f1c9..9792205 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2065,8 +2065,8 @@ i40e_phy_conf_link(struct i40e_hw *hw,
 
 
 
-	/* To enable link, phy_type mask needs to include each type */
-	for (cnt = I40E_PHY_TYPE_SGMII; cnt < I40E_PHY_TYPE_MAX; cnt++)
+	/* PHY type mask needs to include each type except PHY type extension */
+	for (cnt = I40E_PHY_TYPE_SGMII; cnt < I40E_PHY_TYPE_25GBASE_KR; cnt++)
 		phy_type_mask |= 1 << cnt;
 
 	/* use get_phy_abilities_resp value for the rest */
-- 
2.5.5

             reply	other threads:[~2018-05-23  7:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-23  7:46 Beilei Xing [this message]
2018-05-23 15:49 ` Ferruh Yigit
2018-06-21 14:19 ` Zhang, Qi Z

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