Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxxxx> wrote:
This patch fixes a serious bug in ACPI based CPU hotplug code. Because
of this bug, ACPI based CPU hotplug will always fail if NR_CPUS is
equal to or more than 255.
Looks rather similar to
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc5/2.6.16-rc5-mm3/broken-out/acpi-signedness-fix-2.patch
;)
I think they're functionally equivalent - the only difference is the ==-1
versus <0 comparisons.