linux-kernel - [tip:ras/core] x86/mce: Add a wrapper around mce

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Date:	Thu, 13 Aug 2015 03:49:58 -0700
From:	tip-bot for Borislav Petkov <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	fengguang.wu@...el.com, tglx@...utronix.de,
	torvalds@...ux-foundation.org, bp@...e.de, tony.luck@...el.com,
	linux-kernel@...r.kernel.org, peterz@...radead.org,
	mingo@...nel.org, hpa@...or.com
Subject: [tip:ras/core] x86/mce: Add a wrapper around mce_log()
  for injection

Commit-ID:  a79da38494ec23f1a7d6ee734e07e9575fd18b58
Gitweb:     http://git.kernel.org/tip/a79da38494ec23f1a7d6ee734e07e9575fd18b58
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Wed, 12 Aug 2015 18:29:44 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 13 Aug 2015 10:12:53 +0200

x86/mce: Add a wrapper around mce_log() for injection

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@...el.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Tony Luck <tony.luck@...el.com>
Link: http://lkml.kernel.org/r/1439396985-12812-13-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 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 ea8b622..547720e 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 b979711..e4e6646 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)
--
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