• Arnd Bergmann's avatar
    net, compat_ioctl: handle socket ioctl abuses in tty drivers · 9646e7ce
    Arnd Bergmann authored
    Slip and a few other drivers use the same ioctl numbers on
    tty devices that are normally meant for sockets. This causes
    problems with our compat_ioctl handling that tries to convert
    the data structures in a different format.
    
    Fortunately, these five drivers all use 32 bit compatible
    data structures in the ioctl numbers, so we can just add
    a trivial compat_ioctl conversion function to each of them.
    
    SIOCSIFENCAP and SIOCGIFENCAP do not need to live in
    fs/compat_ioctl.c after this any more, and they are not
    used on any sockets.
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    9646e7ce
mkiss.c 24.3 KB