41 	struct dma_fence_chain *chain, *prev_chain;  in dma_fence_chain_walk()  local
52 		prev_chain = to_dma_fence_chain(prev);  in dma_fence_chain_walk()
53 		if (prev_chain) {  in dma_fence_chain_walk()
54 			if (!dma_fence_is_signaled(prev_chain->fence))  in dma_fence_chain_walk()
57 			replacement = dma_fence_chain_get_prev(prev_chain);  in dma_fence_chain_walk()
187 		struct dma_fence_chain *prev_chain;  in dma_fence_chain_release()  local
192 		prev_chain = to_dma_fence_chain(prev);  in dma_fence_chain_release()
193 		if (!prev_chain)  in dma_fence_chain_release()
199 		chain->prev = prev_chain->prev;  in dma_fence_chain_release()
200 		RCU_INIT_POINTER(prev_chain->prev, NULL);  in dma_fence_chain_release()
246 	struct dma_fence_chain *prev_chain = to_dma_fence_chain(prev);  in dma_fence_chain_init()  local
255 	if (prev_chain && __dma_fence_is_later(seqno, prev->seqno, prev->ops)) {  in dma_fence_chain_init()
261 		if (prev_chain)  in dma_fence_chain_init()