• Arnd Bergmann's avatar
    tty: remove platform_sysrq_reset_seq · abab381f
    Arnd Bergmann authored
    The platform_sysrq_reset_seq code was intended as a way for an embedded
    platform to provide its own sysrq sequence at compile time. After over
    two years, nobody has started using it in an upstream kernel, and
    the platforms that were interested in it have moved on to devicetree,
    which can be used to configure the sequence without requiring kernel
    changes. The method is also incompatible with the way that most
    architectures build support for multiple platforms into a single
    kernel.
    
    Now the code is producing warnings when built with gcc-5.1:
    
    drivers/tty/sysrq.c: In function 'sysrq_init':
    drivers/tty/sysrq.c:959:33: warning: array subscript is above array bounds [-Warray-bounds]
       key = platform_sysrq_reset_seq[i];
    
    We could fix this, but it seems unlikely that it will ever be used,
    so let's just remove the code instead. We still have the option to
    pass the sequence either in DT, using the kernel command line,
    or using the /sys/module/sysrq/parameters/reset_seq file.
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Fixes: 154b7a48 ("Input: sysrq - allow specifying alternate reset sequence")
    ----
    v2: moved sysrq_reset_downtime_ms variable to avoid introducing a compile
        warning when CONFIG_INPUT is disabled
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    abab381f
sysrq.c 25.6 KB