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Subject[PATCH 12/13] x86/mce: Add a wrapper around mce_log() for injection
Date
From: Borislav Petkov <bp@suse.de>

Will be used by an injector module in a following patch.

Additionally, add a missing module export reported by 0-DAY kernel test.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/201508112002.zlZNJHPH%fengguang.wu@intel.com
---
arch/x86/kernel/cpu/mcheck/mce-internal.h | 2 ++
arch/x86/kernel/cpu/mcheck/mce.c | 8 ++++++++
2 files changed, 10 insertions(+)

diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h b/arch/x86/kernel/cpu/mcheck/mce-internal.h
index ea8b62264c14..547720efd923 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
@@ -79,3 +79,5 @@ static inline int apei_clear_mce(u64 record_id)
return -EINVAL;
}
#endif
+
+void mce_inject_log(struct mce *m);
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index b979711452a5..e4e6646cac46 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -199,6 +199,14 @@ void mce_log(struct mce *mce)
set_bit(0, &mce_need_notify);
}

+void mce_inject_log(struct mce *m)
+{
+ mutex_lock(&mce_chrdev_read_mutex);
+ mce_log(m);
+ mutex_unlock(&mce_chrdev_read_mutex);
+}
+EXPORT_SYMBOL_GPL(mce_inject_log);
+
static struct notifier_block mce_srao_nb;

void mce_register_decode_chain(struct notifier_block *nb)
--
2.5.0.rc2.28.g6003e7f


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