Commit ebc04215 authored by Milton Miller's avatar Milton Miller Committed by Benjamin Herrenschmidt

powerpc/mpic: Limit NR_CPUS loop to 32 bit

mpic_physmask was looping NR_CPUS times over a mask that was passed as
a u32. Since mpic is architecturaly limited to 32 physical cpus, clamp
the logical cpus to 32 when compiling (we could also clamp at runtime
to nr_cpu_ids).
Signed-off-by: default avatarMilton Miller <miltonm@bga.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent aa79bc21
......@@ -631,7 +631,7 @@ static inline u32 mpic_physmask(u32 cpumask)
int i;
u32 mask = 0;
for (i = 0; i < NR_CPUS; ++i, cpumask >>= 1)
for (i = 0; i < min(32, NR_CPUS); ++i, cpumask >>= 1)
mask |= (cpumask & 1) << get_hard_smp_processor_id(i);
return mask;
}
......
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