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Subject[PATCH] srcu: Export srcu_check_nmi_safety() to modules
Date
When enable CONFIG_PROVE_RCU and built modules, the following
error appear:

ERROR: modpost: "srcu_check_nmi_safety" [kernel/rcu/rcutorture.ko] undefined!
ERROR: modpost: "srcu_check_nmi_safety" [kernel/rcu/rcuscale.ko] undefined!

This commit fix it by exporting the srcu_check_nmi_safety().

Signed-off-by: Zqiang <qiang1.zhang@intel.com>
---
kernel/rcu/srcutree.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c
index 382236dd5e46..bcd629f5f902 100644
--- a/kernel/rcu/srcutree.c
+++ b/kernel/rcu/srcutree.c
@@ -651,6 +651,7 @@ void srcu_check_nmi_safety(struct srcu_struct *ssp, bool nmi_safe)
}
WARN_ONCE(old_nmi_safe_mask != nmi_safe_mask, "CPU %d old state %d new state %d\n", sdp->cpu, old_nmi_safe_mask, nmi_safe_mask);
}
+EXPORT_SYMBOL_GPL(srcu_check_nmi_safety);
#endif /* CONFIG_PROVE_RCU */

/*
--
2.25.1
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