linux-kernel - [RESEND PATCH 2/3] x86/mce: Make mce_notify

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Message-ID: <20250115073640.77099-3-nik.borisov@suse.com>
Date: Wed, 15 Jan 2025 09:36:39 +0200
From: Nikolay Borisov <nik.borisov@...e.com>
To: linux-edac@...r.kernel.org
Cc: x86@...nel.org,
	linux-kernel@...r.kernel.org,
	bp@...en8.de,
	Nikolay Borisov <nik.borisov@...e.com>
Subject: [RESEND PATCH 2/3] x86/mce: Make mce_notify_irq() static

It's no longer used outside of core.c so let's make it static. No
functional changes.

Signed-off-by: Nikolay Borisov <nik.borisov@...e.com>
---
 arch/x86/include/asm/mce.h     |  2 --
 arch/x86/kernel/cpu/mce/core.c | 43 +++++++++++++++++-----------------
 2 files changed, 22 insertions(+), 23 deletions(-)

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index eb2db07ef39c..6c77c03139f7 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -296,8 +296,6 @@ enum mcp_flags {

 void machine_check_poll(enum mcp_flags flags, mce_banks_t *b);

-bool mce_notify_irq(void);
-
 DECLARE_PER_CPU(struct mce, injectm);

 /* Disable CMCI/polling for MCA bank claimed by firmware */
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 23e5e7f7c554..89625ff79c3b 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -584,6 +584,28 @@ bool mce_is_correctable(struct mce *m)
 }
 EXPORT_SYMBOL_GPL(mce_is_correctable);

+/*
+ * Notify the user(s) about new machine check events.
+ * Can be called from interrupt context, but not from machine check/NMI
+ * context.
+ */
+static int mce_notify_irq(void)
+{
+	/* Not more than two messages every minute */
+	static DEFINE_RATELIMIT_STATE(ratelimit, 60*HZ, 2);
+
+	if (test_and_clear_bit(0, &mce_need_notify)) {
+		mce_work_trigger();
+
+		if (__ratelimit(&ratelimit))
+			pr_info(HW_ERR "Machine check events logged\n");
+
+		return 1;
+	}
+
+	return 0;
+}
+
 static int mce_early_notifier(struct notifier_block *nb, unsigned long val,
 			      void *data)
 {
@@ -1773,27 +1795,6 @@ static void mce_timer_delete_all(void)
 		del_timer_sync(&per_cpu(mce_timer, cpu));
 }

-/*
- * Notify the user(s) about new machine check events.
- * Can be called from interrupt context, but not from machine check/NMI
- * context.
- */
-bool mce_notify_irq(void)
-{
-	/* Not more than two messages every minute */
-	static DEFINE_RATELIMIT_STATE(ratelimit, 60*HZ, 2);
-
-	if (test_and_clear_bit(0, &mce_need_notify)) {
-		mce_work_trigger();
-
-		if (__ratelimit(&ratelimit))
-			pr_info(HW_ERR "Machine check events logged\n");
-
-		return true;
-	}
-	return false;
-}
-
 static void __mcheck_cpu_mce_banks_init(void)
 {
 	struct mce_bank *mce_banks = this_cpu_ptr(mce_banks_array);
--
2.43.0