242 	struct scatterlist *sg;  in alloc_and_scatter_data_area()  local
244 	for_each_sg(data_sg, sg, data_nents, i) {  in alloc_and_scatter_data_area()
245 		copy_bytes = min_t(size_t, sg->length,  in alloc_and_scatter_data_area()
247 		from = kmap_atomic(sg_page(sg)) + sg->offset;  in alloc_and_scatter_data_area()
265 		if (sg->length != copy_bytes) {  in alloc_and_scatter_data_area()
268 			copy_bytes = sg->length - copy_bytes;  in alloc_and_scatter_data_area()
288 		kunmap_atomic(from - sg->offset);  in alloc_and_scatter_data_area()
298 	struct scatterlist *sg;  in gather_and_free_data_area()  local
301 	for_each_sg(data_sg, sg, data_nents, i) {  in gather_and_free_data_area()
302 		copy_bytes = min_t(size_t, sg->length,  in gather_and_free_data_area()
305 		to = kmap_atomic(sg_page(sg)) + sg->offset;  in gather_and_free_data_area()
306 		WARN_ON(sg->length + sg->offset > PAGE_SIZE);  in gather_and_free_data_area()
315 		if (sg->length != copy_bytes) {  in gather_and_free_data_area()
321 			copy_bytes = sg->length - copy_bytes;  in gather_and_free_data_area()
328 		kunmap_atomic(to - sg->offset);  in gather_and_free_data_area()