This is seen when CONFIG_SMP is not enabled:
arch/powerpc/platforms/powernv/rng.c: In function 'rng_init_per_cpu':
arch/powerpc/platforms/powernv/rng.c:74: error: implicit declaration of
function 'cpu_to_chip_id'
Signed-off-by: Li Zhong <zh...@linux.vnet.ibm.com>
---
arch/powerpc/platforms/powernv/rng.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/rng.c
b/arch/powerpc/platforms/powernv/rng.c
index 8844628..04430a7 100644
--- a/arch/powerpc/platforms/powernv/rng.c
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -59,6 +59,7 @@ int powernv_get_random_long(unsigned long *v)
}
EXPORT_SYMBOL_GPL(powernv_get_random_long);
+#ifdef CONFIG_SMP
static __init void rng_init_per_cpu(struct powernv_rng *rng,
struct device_node *dn)
{
@@ -75,6 +76,13 @@ static __init void rng_init_per_cpu(struct powernv_rng *rng,
}
}
}
+#else
+static __init void rng_init_per_cpu(struct powernv_rng *rng,
+ struct device_node *dn)
+{
+ per_cpu(powernv_rng, 0) = rng;
+}
+#endif
static __init int rng_create(struct device_node *dn)
{
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