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Subject[PATCH] x86/mce: add a switch of CONFIG_X86_MCELOG_LEGACY
Date
From: Xiaochun Lee <lixc17@lenovo.com>

Add CONFIG_X86_MCELOG_LEGACY to control the
behavior of several functions be compiled.

Signed-off-by: Xiaochun Lee <lixc17@lenovo.com>
---
arch/x86/kernel/cpu/mce/dev-mcelog.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/dev-mcelog.c b/arch/x86/kernel/cpu/mce/dev-mcelog.c
index 7c8958d..6add0ce 100644
--- a/arch/x86/kernel/cpu/mce/dev-mcelog.c
+++ b/arch/x86/kernel/cpu/mce/dev-mcelog.c
@@ -82,7 +82,7 @@ static void mce_do_trigger(struct work_struct *work)

static DECLARE_WORK(mce_trigger_work, mce_do_trigger);

-
+#ifdef CONFIG_X86_MCELOG_LEGACY
void mce_work_trigger(void)
{
if (mce_helper[0])
@@ -113,6 +113,7 @@ static ssize_t set_trigger(struct device *s, struct device_attribute *attr,
}

DEVICE_ATTR(trigger, 0644, show_trigger, set_trigger);
+#endif

/*
* mce_chrdev: Character device /dev/mcelog to read and clear the MCE log.
@@ -276,6 +277,7 @@ static long mce_chrdev_ioctl(struct file *f, unsigned int cmd,
}
}

+#ifdef CONFIG_X86_MCELOG_LEGACY
void mce_register_injector_chain(struct notifier_block *nb)
{
blocking_notifier_chain_register(&mce_injector_chain, nb);
@@ -287,6 +289,7 @@ void mce_unregister_injector_chain(struct notifier_block *nb)
blocking_notifier_chain_unregister(&mce_injector_chain, nb);
}
EXPORT_SYMBOL_GPL(mce_unregister_injector_chain);
+#endif

static ssize_t mce_chrdev_write(struct file *filp, const char __user *ubuf,
size_t usize, loff_t *off)
--
1.8.3.1

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