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    SubjectRe: [PATCH 22/23] sysctl arm: Remove binary sysctl support
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    Russell King <rmk+lkml@arm.linux.org.uk> writes:

    >
    > NAK. Glibc uses these numeric sysctls to support ioperm emulation on ARM.
    > Therefore, removal of these numeric sysctls breaks that user interface:
    >
    > static int iobase_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_BASE };
    > static int ioshift_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_SHIFT };
    > if (! sysctl (iobase_name, 3, &io.io_base, &len, NULL, 0)
    > && ! sysctl (ioshift_name, 3, &io.shift, &len, NULL, 0))
    > {
    > io.initdone = 1;
    > return 0;
    > }

    Those still exist in sysctl_binary.c are provided by reading
    /proc/sys/bus/isa/membase, /proc/sys/bus/isa/portbase, and
    /proc/sys/bus/isa/portshift.

    The practical difference is that /proc support now must be compiled
    in to support sys_sysctl.

    Eric


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