Working on a series of tidy up patches for gfx_v9 and found this block
in gfx_v9_0_sw_init().
for (i = 0; i < adev->gfx.num_gfx_rings; i++) {
ring = &adev->gfx.gfx_ring[i];
ring->ring_obj = NULL;
sprintf(ring->name, "gfx");
Won't that make a series of rings all with the same name?
Tom
