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authorSteven <sluong@cisco.com>2017-06-30 07:15:02 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-07-01 07:02:08 +0000
commitbafa4d048439fdbcc0bd577e43a2784d1b89bfc5 (patch)
tree02bf316f3326beb27e837c6447091b78f25911e9 /src/vnet/interface_format.c
parent85e5b8da28b522ea7a88275f066d127c20eff171 (diff)
devices: show interface rx-placement displays the wrong information (VPP-894)
show interface rx-placement somtimes displays the wrong interface names. This happens when there exists subinterfaces in VPP. The problem is due to the function show_interface_rx_placement_fn is calling format_vnet_sw_if_index_name with hw_if_index instead of sw_if_index. VPP has the concept of sw_if_index and hw_if_index. Each serves a different purpose. When there is no subinterfaces, both hw_if_index and sw_if_index may happen to have the same value.But don't count on it. When the API calls for sw_if_index, we must pass the sw_if_index although the hw_if_index has the same type which the compiler does not catch. Passing hw_if_index for an API which requires sw_if_index may have an unpredictable result such as described in the VPP-894 and sometimes it may even crash if the particular index does not exist. Change-Id: I76c4834f79b88a1c20684fcba64f14b2da142d77 Signed-off-by: Steven <sluong@cisco.com>
Diffstat (limited to 'src/vnet/interface_format.c')
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