ixgbe/base: rework link speed branches

Use switch-case statement to replace if-else statement.

Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
Acked-by: Jijiang Liu <jijiang.liu@intel.com>

diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c
index 87e5ceb..3ced5aa 100644 (file)
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c
@@ -4079,26 +4079,27 @@ s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
                        *link_up = false;
        }
 
-       if ((links_reg & IXGBE_LINKS_SPEED_82599) ==
-           IXGBE_LINKS_SPEED_10G_82599) {
+       switch (links_reg & IXGBE_LINKS_SPEED_82599) {
+       case IXGBE_LINKS_SPEED_10G_82599:
                *speed = IXGBE_LINK_SPEED_10GB_FULL;
                if (hw->mac.type >= ixgbe_mac_X550) {
                        if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
                                *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
                }
-       }
-       else if ((links_reg & IXGBE_LINKS_SPEED_82599) ==
-                IXGBE_LINKS_SPEED_1G_82599)
+               break;
+       case IXGBE_LINKS_SPEED_1G_82599:
                *speed = IXGBE_LINK_SPEED_1GB_FULL;
-       else if ((links_reg & IXGBE_LINKS_SPEED_82599) ==
-                IXGBE_LINKS_SPEED_100_82599)
+               break;
+       case IXGBE_LINKS_SPEED_100_82599:
                *speed = IXGBE_LINK_SPEED_100_FULL;
-       else
                if (hw->mac.type >= ixgbe_mac_X550) {
                        if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
                                *speed = IXGBE_LINK_SPEED_5GB_FULL;
                }
+               break;
+       default:
                *speed = IXGBE_LINK_SPEED_UNKNOWN;
+       }
 
        return IXGBE_SUCCESS;
 }