As we don't trigger preemption is sw ring muxer when mcbp is
disabled,so return earlier in amdgpu_sw_ring_ib_end function
if mcbp is disabled ,not required to call amdgpu_ring_mux_end_ib
Signed-off-by: Soham Dandapat <sdandapa@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>