linux-kernel - [PATCH 09/20] x86: set nr_irqs_gsi only in probe_nr_irqs

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Date:	Sun, 21 Mar 2010 00:13:10 -0700
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>,
	David Miller <davem@...emloft.net>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 09/20] x86: set nr_irqs_gsi only in probe_nr_irqs_gsi

don't clear that in arch_early_irq_init

probe_nr_irqs_gsi is always called when ioapic is selected in config.

so even for mrst, print out from probe_nr_irqs_gsi is report correct
nr_irqs_gsi

-v2: remove io_apic_irqs assignement, setup_IO_APIC will do that.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 arch/x86/kernel/apic/io_apic.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 61b59ef..ba469f8 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -153,11 +153,6 @@ int __init arch_early_irq_init(void)
 	int node;
 	int i;
 
-	if (!legacy_pic->nr_legacy_irqs) {
-		nr_irqs_gsi = 0;
-		io_apic_irqs = ~0UL;
-	}
-
 	cfg = irq_cfgx;
 	count = ARRAY_SIZE(irq_cfgx);
 	node= cpu_to_node(boot_cpu_id);
@@ -3938,6 +3933,8 @@ void __init probe_nr_irqs_gsi(void)
 {
 	int nr = 0;
 
+	nr_irqs_gsi = legacy_pic->nr_legacy_irqs;
+
 	nr = acpi_probe_gsi();
 	if (nr > nr_irqs_gsi) {
 		nr_irqs_gsi = nr;
-- 
1.6.4.2

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