net/wireless/wext-priv.c

65 static int adjust_priv_size(__u16 args, struct iw_point *iwp)
67 	int	num = iwp->length;
137 static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd,
147 		if (!iwp->pointer && iwp->length != 0)
150 		if (iwp->length > (descr->set_args & IW_PRIV_SIZE_MASK))
152 	} else if (!iwp->pointer)
160 	if (IW_IS_SET(cmd) && (iwp->length != 0)) {
161 		if (copy_from_user(extra, iwp->pointer, extra_size)) {
168 	err = handler(dev, info, (union iwreq_data *) iwp, extra);
176 			extra_size = adjust_priv_size(descr->get_args, iwp);
178 		if (copy_to_user(iwp->pointer, extra, extra_size))
228 		struct iw_point iwp;
231 		iwp.pointer = compat_ptr(iwp_compat->pointer);
232 		iwp.length = iwp_compat->length;
233 		iwp.flags = iwp_compat->flags;
235 		ret = ioctl_private_iw_point(&iwp, cmd, descr,
238 		iwp_compat->pointer = ptr_to_compat(iwp.pointer);
239 		iwp_compat->length = iwp.length;
240 		iwp_compat->flags = iwp.flags;