linux-kernel - [PATCH 3/5] x86, ioapic: Print out irte with right ioapic index

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Message-ID: <4E9542C8.8040209@oracle.com>
Date:	Wed, 12 Oct 2011 00:33:28 -0700
From:	Yinghai Lu <yinghai.lu@...cle.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
CC:	Naga Chumbalkar <nagananda.chumbalkar@...com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/5] x86, ioapic: Print out irte with right ioapic index

While checking irte dump in dmesg, the print out is confusing ioapic index
with real io apic id.

IOAPIC[0]: Set routing entry (1-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:1)
IOAPIC[1]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:1 Avail:0 Vector:31 Dest:00000001 SID:00FF SQ:0 SVT:1)
IOAPIC[0]: Set routing entry (1-2 -> 0x30 -> IRQ 0 Mode:0 Active:0 Dest:1)
IOAPIC[1]: Set IRTE entry (P:1 FPD:0 Dst_Mode:1 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:1 Avail:0 Vector:30 Dest:00000001 SID:00FF SQ:0 SVT:1)

The system first ioapic id is 1.

Those irte print out is from:
| commit 3040db92ee1b6c5b6b6d73f8cdcad54c0da11563
| Author: Naga Chumbalkar <nagananda.chumbalkar@...com>
| Date:   Tue Jul 12 21:17:41 2011 +0000
|
|    x86, ioapic: Print IRTE when IR is enabled
it uses apic_id in setup_ioapic_entry(), and think it is ioapic idx.
actually it is ioapic apic id.

So need to use ioapic idx instead to get right printout.

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

---
 arch/x86/kernel/apic/io_apic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/arch/x86/kernel/apic/io_apic.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/apic/io_apic.c
+++ linux-2.6/arch/x86/kernel/apic/io_apic.c
@@ -1289,7 +1289,7 @@ static int setup_ir_ioapic_entry(int irq
 		"Redir_hint:%d Trig_Mode:%d Dlvry_Mode:%X "
 		"Avail:%X Vector:%02X Dest:%08X "
 		"SID:%04X SQ:%X SVT:%X)\n",
-		apic_id, irte.present, irte.fpd, irte.dst_mode,
+		attr->ioapic, irte.present, irte.fpd, irte.dst_mode,
 		irte.redir_hint, irte.trigger_mode, irte.dlvry_mode,
 		irte.avail, irte.vector, irte.dest_id,
 		irte.sid, irte.sq, irte.svt);
--
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