66 					      xor_src_cnt, unmap->len,  in do_async_xor()
77 						      xor_src_cnt, unmap->len,  in do_async_xor()
101 	    int src_cnt, size_t len, struct async_submit_ctl *submit)  in do_sync_xor()  argument
123 		memset(dest_buf, 0, len);  in do_sync_xor()
128 		xor_blocks(xor_src_cnt, len, dest_buf, &srcs[src_off]);  in do_sync_xor()
161 	  int src_cnt, size_t len, struct async_submit_ctl *submit)  in async_xor()  argument
165 						      src_cnt, len);  in async_xor()
174 	if (unmap && is_dma_xor_aligned(device, offset, 0, len)) {  in async_xor()
179 		pr_debug("%s (async): len: %zu\n", __func__, len);  in async_xor()
181 		unmap->len = len;  in async_xor()
187 							offset, len, DMA_TO_DEVICE);  in async_xor()
191 		unmap->addr[j] = dma_map_page(device->dev, dest, offset, len,  in async_xor()
201 		pr_debug("%s (sync): len: %zu\n", __func__, len);  in async_xor()
216 		do_sync_xor(dest, src_list, offset, src_cnt, len, submit);  in async_xor()
223 static int page_is_zero(struct page *p, unsigned int offset, size_t len)  in page_is_zero()  argument
225 	return !memchr_inv(page_address(p) + offset, 0, len);  in page_is_zero()
230 		 struct page **src_list, int src_cnt, size_t len)  in xor_val_chan()  argument
236 				     src_cnt, len);  in xor_val_chan()
257 	      int src_cnt, size_t len, enum sum_check_flags *result,  in async_xor_val()  argument
260 	struct dma_chan *chan = xor_val_chan(submit, dest, src_list, src_cnt, len);  in async_xor_val()
271 	    is_dma_xor_aligned(device, offset, 0, len)) {  in async_xor_val()
275 		pr_debug("%s: (async) len: %zu\n", __func__, len);  in async_xor_val()
284 						      offset, len, DMA_TO_DEVICE);  in async_xor_val()
287 		unmap->len = len;  in async_xor_val()
290 						     len, result,  in async_xor_val()
298 					unmap->addr, src_cnt, len, result,  in async_xor_val()
307 		pr_debug("%s: (sync) len: %zu\n", __func__, len);  in async_xor_val()
315 		tx = async_xor(dest, src_list, offset, src_cnt, len, submit);  in async_xor_val()
319 		*result = !page_is_zero(dest, offset, len) << SUM_CHECK_P;  in async_xor_val()