linux-kernel - [PATCH] sparseirq: set lock_class for legacy irq when sparse

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Message-ID: <495067E9.9000904@kernel.org>
Date:	Mon, 22 Dec 2008 20:24:09 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] sparseirq: set lock_class for legacy irq when sparse_irq
 is selected


Impact: fix

that is used to call init_one_irq_desc, after we use static one directly, that line
need to be duplicated too.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 kernel/irq/handle.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6/kernel/irq/handle.c
===================================================================
--- linux-2.6.orig/kernel/irq/handle.c
+++ linux-2.6/kernel/irq/handle.c
@@ -146,6 +146,7 @@ void __init early_irq_init(void)
 	for (i = 0; i < legacy_count; i++) {
 		desc[i].irq = i;
 		desc[i].kstat_irqs = kstat_irqs_legacy[i];
+		lockdep_set_class(&desc[i].lock, &irq_desc_lock_class);
 
 		irq_desc_ptrs[i] = desc + i;
 	}
--
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