• Arnd Bergmann's avatar
    compat_ioctl: move WDIOC handling into wdt drivers · b6dfb247
    Arnd Bergmann authored
    All watchdog drivers implement the same set of ioctl commands, and
    fortunately all of them are compatible between 32-bit and 64-bit
    architectures.
    
    Modern drivers always go through drivers/watchdog/wdt.c as an abstraction
    layer, but older ones implement their own file_operations on a character
    device for this.
    
    Move the handling from fs/compat_ioctl.c into the individual drivers.
    
    Note that most of the legacy drivers will never be used on 64-bit
    hardware, because they are for an old 32-bit SoC implementation, but
    doing them all at once is safer than trying to guess which ones do
    or do not need the compat_ioctl handling.
    Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    b6dfb247
mtx-1_wdt.c 5.85 KB