[dpdk-dev] [PATCH 20/25] net/i40e/base: fix compile issue for GCC 6.3

[Qi Zhang <qi.z.zhang@intel.com>]

When using GCC 6.3.0 and EXTRA_CFLAGS=-Og, the compiler is not smart
enough to see that when you have an integrated VF that just one of the
if statemets has to be true so that ntu is always set. Fix the way that
the code is for integrated VFs so that the compiler won't complain.

Fixes: 9783eb15eb98 ("i40e/base: wrap the register definitions for PF and VF")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/i40e/base/i40e_adminq.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/net/i40e/base/i40e_adminq.c b/drivers/net/i40e/base/i40e_adminq.c
index 7a70443c4..612be8839 100644
--- a/drivers/net/i40e/base/i40e_adminq.c
+++ b/drivers/net/i40e/base/i40e_adminq.c
@@ -1078,22 +1078,19 @@ enum i40e_status_code i40e_clean_arq_element(struct i40e_hw *hw,
 	}
 
 	/* set next_to_use to head */
-#ifdef PF_DRIVER
 #ifdef INTEGRATED_VF
 	if (!i40e_is_vf(hw))
-		ntu = (rd32(hw, hw->aq.arq.head) & I40E_PF_ARQH_ARQH_MASK);
+		ntu = rd32(hw, hw->aq.arq.head) & I40E_PF_ARQH_ARQH_MASK;
+	else
+		ntu = rd32(hw, hw->aq.arq.head) & I40E_VF_ARQH1_ARQH_MASK;
 #else
-	ntu = (rd32(hw, hw->aq.arq.head) & I40E_PF_ARQH_ARQH_MASK);
-#endif /* INTEGRATED_VF */
+#ifdef PF_DRIVER
+	ntu = rd32(hw, hw->aq.arq.head) & I40E_PF_ARQH_ARQH_MASK;
 #endif /* PF_DRIVER */
 #ifdef VF_DRIVER
-#ifdef INTEGRATED_VF
-	if (i40e_is_vf(hw))
-		ntu = (rd32(hw, hw->aq.arq.head) & I40E_VF_ARQH1_ARQH_MASK);
-#else
-	ntu = (rd32(hw, hw->aq.arq.head) & I40E_VF_ARQH1_ARQH_MASK);
-#endif /* INTEGRATED_VF */
+	ntu = rd32(hw, hw->aq.arq.head) & I40E_VF_ARQH1_ARQH_MASK;
 #endif /* VF_DRIVER */
+#endif /* INTEGRATED_VF */
 	if (ntu == ntc) {
 		/* nothing to do - shouldn't need to update ring's values */
 		ret_code = I40E_ERR_ADMIN_QUEUE_NO_WORK;
-- 
2.14.1