> Below are codes for accessing usb sysif_regs in driver: > > usb_sys_regs = (struct usb_sys_interface *) > ((u32)dr_regs + USB_DR_SYS_OFFSET); > > these codes work in 32-bit, but in 64-bit, use u32 to type cast the address > of ioremap is not right, and accessing members of 'usb_sys_regs' will cause > call trace, so use unsigned long for both 32-bit and 64-bit. Wouldn't a (char *) cast be even better? David -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html