608 	u64				arg;  member
3531 			     int sync, void *arg)  in io_async_buf_func()  argument
3535 	struct wait_page_key *key = arg;  in io_async_buf_func()
6472 	req->rsrc_update.arg = READ_ONCE(sqe->addr);  in io_rsrc_update_prep()
6483 	up.data = req->rsrc_update.arg;  in io_files_update()
8386 static int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg,  in io_sqe_files_register()  argument
8389 	__s32 __user *fds = (__s32 __user *) arg;  in io_sqe_files_register()
8965 		       void __user *arg, unsigned index)  in io_copy_iov()  argument
8974 		ciovs = (struct compat_iovec __user *) arg;  in io_copy_iov()
8983 	src = (struct iovec __user *) arg;  in io_copy_iov()
9191 static int io_sqe_buffers_register(struct io_ring_ctx *ctx, void __user *arg,  in io_sqe_buffers_register()  argument
9216 		ret = io_copy_iov(ctx, &iov, arg, i);  in io_sqe_buffers_register()
9303 static int io_eventfd_register(struct io_ring_ctx *ctx, void __user *arg)  in io_eventfd_register()  argument
9305 	__s32 __user *fds = arg;  in io_eventfd_register()
10041 	struct io_uring_getevents_arg arg;  in io_get_ext_arg()  local
10057 	if (*argsz != sizeof(arg))  in io_get_ext_arg()
10059 	if (copy_from_user(&arg, argp, sizeof(arg)))  in io_get_ext_arg()
10061 	if (arg.pad)  in io_get_ext_arg()
10063 	*sig = u64_to_user_ptr(arg.sigmask);  in io_get_ext_arg()
10064 	*argsz = arg.sigmask_sz;  in io_get_ext_arg()
10065 	*ts = u64_to_user_ptr(arg.ts);  in io_get_ext_arg()
10537 static int io_probe(struct io_ring_ctx *ctx, void __user *arg, unsigned nr_args)  in io_probe()  argument
10551 	if (copy_from_user(p, arg, size))  in io_probe()
10569 	if (copy_to_user(arg, p, size))  in io_probe()
10593 static int io_register_restrictions(struct io_ring_ctx *ctx, void __user *arg,  in io_register_restrictions()  argument
10608 	if (!arg || nr_args > IORING_MAX_RESTRICTIONS)  in io_register_restrictions()
10615 	res = memdup_user(arg, size);  in io_register_restrictions()
10699 static int io_register_files_update(struct io_ring_ctx *ctx, void __user *arg,  in io_register_files_update()  argument
10707 	if (copy_from_user(&up, arg, sizeof(struct io_uring_rsrc_update)))  in io_register_files_update()
10714 static int io_register_rsrc_update(struct io_ring_ctx *ctx, void __user *arg,  in io_register_rsrc_update()  argument
10721 	if (copy_from_user(&up, arg, sizeof(up)))  in io_register_rsrc_update()
10728 static int io_register_rsrc(struct io_ring_ctx *ctx, void __user *arg,  in io_register_rsrc()  argument
10738 	if (copy_from_user(&rr, arg, size))  in io_register_rsrc()
10754 static int io_register_iowq_aff(struct io_ring_ctx *ctx, void __user *arg,  in io_register_iowq_aff()  argument
10774 					(const compat_ulong_t __user *)arg,  in io_register_iowq_aff()
10777 		ret = copy_from_user(new_mask, arg, len);  in io_register_iowq_aff()
10780 	ret = copy_from_user(new_mask, arg, len);  in io_register_iowq_aff()
10804 					void __user *arg)  in io_register_iowq_max_workers()  argument
10813 	if (copy_from_user(new_count, arg, sizeof(new_count)))  in io_register_iowq_max_workers()
10859 	if (copy_to_user(arg, new_count, sizeof(new_count)))  in io_register_iowq_max_workers()
10939 			       void __user *arg, unsigned nr_args)  in __io_uring_register()  argument
10967 		ret = io_sqe_buffers_register(ctx, arg, nr_args, NULL);  in __io_uring_register()
10971 		if (arg || nr_args)  in __io_uring_register()
10976 		ret = io_sqe_files_register(ctx, arg, nr_args, NULL);  in __io_uring_register()
10980 		if (arg || nr_args)  in __io_uring_register()
10985 		ret = io_register_files_update(ctx, arg, nr_args);  in __io_uring_register()
10992 		ret = io_eventfd_register(ctx, arg);  in __io_uring_register()
11002 		if (arg || nr_args)  in __io_uring_register()
11008 		if (!arg || nr_args > 256)  in __io_uring_register()
11010 		ret = io_probe(ctx, arg, nr_args);  in __io_uring_register()
11014 		if (arg || nr_args)  in __io_uring_register()
11020 		if (arg)  in __io_uring_register()
11026 		if (arg || nr_args)  in __io_uring_register()
11031 		ret = io_register_restrictions(ctx, arg, nr_args);  in __io_uring_register()
11034 		ret = io_register_rsrc(ctx, arg, nr_args, IORING_RSRC_FILE);  in __io_uring_register()
11037 		ret = io_register_rsrc_update(ctx, arg, nr_args,  in __io_uring_register()
11041 		ret = io_register_rsrc(ctx, arg, nr_args, IORING_RSRC_BUFFER);  in __io_uring_register()
11044 		ret = io_register_rsrc_update(ctx, arg, nr_args,  in __io_uring_register()
11049 		if (!arg || !nr_args)  in __io_uring_register()
11051 		ret = io_register_iowq_aff(ctx, arg, nr_args);  in __io_uring_register()
11055 		if (arg || nr_args)  in __io_uring_register()
11061 		if (!arg || nr_args != 2)  in __io_uring_register()
11063 		ret = io_register_iowq_max_workers(ctx, arg);  in __io_uring_register()
11079 		void __user *, arg, unsigned int, nr_args)  in SYSCALL_DEFINE4()  argument
11101 	ret = __io_uring_register(ctx, opcode, arg, nr_args);  in SYSCALL_DEFINE4()