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Code Issues Releases Wiki Activity

powerpc: Fix topology core_id endian issue on LE builds

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cpu_to_core_id() is missing a byteswap:

cat /sys/devices/system/cpu/cpu63/topology/core_id
201326592

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2013-12-12 15:59:36 +11:00 committed by Benjamin Herrenschmidt
parent 01666c8ee2
commit f8a1883a83
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kernel/smp.c
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@ -580,7 +580,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
int cpu_to_core_id(int cpu) int cpu_to_core_id(int cpu)
{ {
struct device_node *np; struct device_node *np;
const int *reg; const __be32 *reg;
int id = -1; int id = -1;
np = of_get_cpu_node(cpu, NULL); np = of_get_cpu_node(cpu, NULL);
@ -591,7 +591,7 @@ int cpu_to_core_id(int cpu)
if (!reg) if (!reg)
goto out; goto out;
id = *reg; id = be32_to_cpup(reg);
out: out:
of_node_put(np); of_node_put(np);
return id; return id;