2944 void __rdma_block_iter_start(struct ib_block_iter *biter,  in __rdma_block_iter_start()  argument
2948 	memset(biter, 0, sizeof(struct ib_block_iter));  in __rdma_block_iter_start()
2949 	biter->__sg = sglist;  in __rdma_block_iter_start()
2950 	biter->__sg_nents = nents;  in __rdma_block_iter_start()
2953 	biter->__pg_bit = __fls(pgsz);  in __rdma_block_iter_start()
2957 bool __rdma_block_iter_next(struct ib_block_iter *biter)  in __rdma_block_iter_next()  argument
2961 	if (!biter->__sg_nents || !biter->__sg)  in __rdma_block_iter_next()
2964 	biter->__dma_addr = sg_dma_address(biter->__sg) + biter->__sg_advance;  in __rdma_block_iter_next()
2965 	block_offset = biter->__dma_addr & (BIT_ULL(biter->__pg_bit) - 1);  in __rdma_block_iter_next()
2966 	biter->__sg_advance += BIT_ULL(biter->__pg_bit) - block_offset;  in __rdma_block_iter_next()
2968 	if (biter->__sg_advance >= sg_dma_len(biter->__sg)) {  in __rdma_block_iter_next()
2969 		biter->__sg_advance = 0;  in __rdma_block_iter_next()
2970 		biter->__sg = sg_next(biter->__sg);  in __rdma_block_iter_next()
2971 		biter->__sg_nents--;  in __rdma_block_iter_next()