50 static inline int valid_phys_addr_range(phys_addr_t addr, size_t count)  in valid_phys_addr_range()  argument
52 	return addr + count <= __pa(high_memory);  in valid_phys_addr_range()
99 			size_t count, loff_t *ppos)  in read_mem()  argument
108 	if (!valid_phys_addr_range(p, count))  in read_mem()
114 		sz = size_inside_page(p, count);  in read_mem()
120 			count -= sz;  in read_mem()
126 	while (count > 0) {  in read_mem()
129 		sz = size_inside_page(p, count);  in read_mem()
131 		if (!range_is_allowed(p >> PAGE_SHIFT, count))  in read_mem()
150 		count -= sz;  in read_mem()
159 			 size_t count, loff_t *ppos)  in write_mem()  argument
169 	if (!valid_phys_addr_range(p, count))  in write_mem()
177 		sz = size_inside_page(p, count);  in write_mem()
181 		count -= sz;  in write_mem()
186 	while (count > 0) {  in write_mem()
187 		sz = size_inside_page(p, count);  in write_mem()
215 		count -= sz;  in write_mem()
380 			 size_t count, loff_t *ppos)  in read_kmem()  argument
389 		low_count = count;  in read_kmem()
390 		if (count > (unsigned long)high_memory - p)  in read_kmem()
403 			count -= sz;  in read_kmem()
422 			count -= sz;  in read_kmem()
426 	if (count > 0) {  in read_kmem()
430 		while (count > 0) {  in read_kmem()
431 			sz = size_inside_page(p, count);  in read_kmem()
443 			count -= sz;  in read_kmem()
456 				size_t count, loff_t *ppos)  in do_write_kmem()  argument
465 		sz = size_inside_page(p, count);  in do_write_kmem()
469 		count -= sz;  in do_write_kmem()
474 	while (count > 0) {  in do_write_kmem()
477 		sz = size_inside_page(p, count);  in do_write_kmem()
495 		count -= sz;  in do_write_kmem()
507 			  size_t count, loff_t *ppos)  in write_kmem()  argument
516 		unsigned long to_write = min_t(unsigned long, count,  in write_kmem()
523 		count -= wrote;  in write_kmem()
526 	if (count > 0) {  in write_kmem()
530 		while (count > 0) {  in write_kmem()
531 			unsigned long sz = size_inside_page(p, count);  in write_kmem()
544 			count -= sz;  in write_kmem()
557 			 size_t count, loff_t *ppos)  in read_port()  argument
562 	if (!access_ok(VERIFY_WRITE, buf, count))  in read_port()
564 	while (count-- > 0 && i < 65536) {  in read_port()
575 			  size_t count, loff_t *ppos)  in write_port()  argument
580 	if (!access_ok(VERIFY_READ, buf, count))  in write_port()
582 	while (count-- > 0 && i < 65536) {  in write_port()
599 			 size_t count, loff_t *ppos)  in read_null()  argument
605 			  size_t count, loff_t *ppos)  in write_null()  argument
607 	return count;  in write_null()
617 	size_t count = iov_iter_count(from);  in write_iter_null()  local
618 	iov_iter_advance(from, count);  in write_iter_null()
619 	return count;  in write_iter_null()
665 			  size_t count, loff_t *ppos)  in write_full()  argument